$CB
Chubb Ltd Stock $cb

$cb Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000089615919000005 Filed on February 28, 2019

Income Statement

Concept	2017 Q4	2017 Q3	2017 Q2
Revenue	$8.015B	$8.610B	$8.108B
YoY Change	-1.87%	0.97%	2.67%
Cost Of Revenue	$4.272B	$6.247B	$4.146B
YoY Change	10.82%	46.33%	-2.54%
Gross Profit	$3.743B	$2.363B	$3.962B
YoY Change	-13.22%	-44.5%	8.76%
Gross Profit Margin	46.7%	27.44%	48.87%
Selling, General & Admin	$748.0M	$720.0M	$721.0M
YoY Change	4.03%	-6.98%	-13.55%
% of Gross Profit	19.98%	30.47%	18.2%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$66.00M	$1.488B	$1.449B
YoY Change	2100.0%	-1.72%	-7.12%
% of Gross Profit	1.76%	62.97%	36.57%
Operating Expenses	$6.759B	$8.689B	$6.544B
YoY Change	9.81%	29.38%	-3.76%
Operating Profit	-$3.016B	-$6.326B	-$2.582B
YoY Change	63.74%	157.36%	-18.21%
Interest Expense	-$40.00M	-$47.00M	-$1.000M
YoY Change	-366.67%	-35.62%	-99.18%
% of Operating Profit
Other Income/Expense, Net	-$15.00M	-$3.000M	-$2.000M
YoY Change	-11.76%	-62.5%	-300.0%
Pretax Income	$1.151B	-$155.0M	$1.505B
YoY Change	-38.42%	-109.47%	70.83%
Income Tax	$68.00M	-$85.00M	$200.0M
% Of Pretax Income	5.91%		13.29%
Net Earnings	$1.533B	-$70.00M	$1.305B
YoY Change	-4.78%	-105.15%	79.75%
Net Earnings / Revenue	19.13%	-0.81%	16.1%
Basic Earnings Per Share	$3.29	-$0.15	$2.79
Diluted Earnings Per Share	$3.27	-$0.15	$2.77
COMMON SHARES
Basic Shares Outstanding	464.2M shares	466.4M shares	468.0M shares
Diluted Shares Outstanding		466.4M shares	471.9M shares

Balance Sheet

Concept	2017 Q4	2017 Q3	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$728.0M	$1.088B	$1.297B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$1.300B
YoY Change	8.33%
Goodwill	$15.54B	$15.71B	$15.43B
YoY Change	1.36%	1.46%	-0.59%
Intangibles	$6.513B	$6.558B	$6.579B
YoY Change	-3.7%	-6.19%	-11.07%
Long-Term Investments	$103.1B	$103.1B	$100.9B
YoY Change	3.35%	1.35%	0.36%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$167.0B	$167.6B	$163.0B
YoY Change	4.53%	3.56%	1.74%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$9.545B	$9.173B	$8.952B
YoY Change	10.77%	-5.9%	-6.89%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$1.013B	$1.020B	$922.0M
YoY Change	102.6%	104.0%	84.4%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$16.43B	$16.02B	$15.72B
YoY Change	11.33%	5.86%	4.36%
LONG-TERM LIABILITIES
Long-Term Debt	$11.86B	$11.87B	$11.98B
YoY Change	-8.16%	-8.21%	-7.45%
Other Long-Term Liabilities	$550.0M	$635.0M	$1.180B
YoY Change	-35.52%	-154.46%	-193.95%
Total Long-Term Liabilities	$12.41B	$12.50B	$13.16B
YoY Change	-9.85%	6.28%	12.6%
TOTAL LIABILITIES
Total Short-Term Liabilities	$16.43B	$16.02B	$15.72B
Total Long-Term Liabilities	$12.41B	$12.50B	$13.16B
Total Liabilities	$115.9B	$117.1B	$112.6B
YoY Change	3.89%	3.23%	-0.3%
SHAREHOLDERS EQUITY
Retained Earnings	$27.47B	$25.94B	$26.01B
YoY Change	16.35%	17.9%	26.0%
Common Stock	$25.10B	$25.34B	$11.12B
YoY Change	-5.13%	127.84%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.944B	$1.877B	$1.675B
YoY Change	31.35%	21.1%	6.21%
Treasury Stock Shares	15.95M shares	15.63M shares	14.41M shares
Shareholders Equity	$51.17B	$50.47B	$50.35B
YoY Change
Total Liabilities & Shareholders Equity	$167.0B	$167.6B	$163.0B
YoY Change	4.53%	3.56%	1.74%

Cashflow Statement

Concept	2017 Q4	2017 Q3	2017 Q2
OPERATING ACTIVITIES
Net Income	$1.533B	-$70.00M	$1.305B
YoY Change	-4.78%	-105.15%	79.75%
Depreciation, Depletion And Amortization	$66.00M	$1.488B	$1.449B
YoY Change	2100.0%	-1.72%	-7.12%
Cash From Operating Activities	$1.092B	$1.771B	$627.0M
YoY Change	-24.95%	5.17%	-44.66%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$1.081B	-$1.464B	$189.0M
YoY Change	3.84%	-8.61%	-117.88%
Cash From Investing Activities	-$1.081B	-$1.464B	$189.0M
YoY Change	3.84%	-8.61%	-117.88%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-349.0M	-527.0M	-585.0M
YoY Change	50.43%	118.67%	250.3%
NET CHANGE
Cash From Operating Activities	1.092B	1.771B	627.0M
Cash From Investing Activities	-1.081B	-1.464B	189.0M
Cash From Financing Activities	-349.0M	-527.0M	-585.0M
Net Change In Cash	-338.0M	-220.0M	231.0M
YoY Change	-285.71%	38.36%	-353.85%
FREE CASH FLOW
Cash From Operating Activities	$1.092B	$1.771B	$627.0M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017Q4	cb	Aoci Portion Attributabletochangeof F Vofinvestmentswith Otti AOCIPortionAttributabletochangeofFVofinvestmentswithOTTI	7000000	USD
CY2018Q4	cb	Aoci Portion Attributabletochangeof F Vofinvestmentswith Otti AOCIPortionAttributabletochangeofFVofinvestmentswithOTTI	1000000	USD
CY2016	cb	Advances To From Affiliates Financing Activities AdvancesToFromAffiliatesFinancingActivities	0	USD
CY2017	cb	Advances To From Affiliates Financing Activities AdvancesToFromAffiliatesFinancingActivities	0	USD
CY2018	cb	Advances To From Affiliates Financing Activities AdvancesToFromAffiliatesFinancingActivities	0	USD
CY2018Q4	cb	Allowance For Reinsurance Recoverable Percentage AllowanceForReinsuranceRecoverablePercentage	0.020
CY2016Q2	cb	Annualdividendpershareapprovedbyshareholders Annualdividendpershareapprovedbyshareholders	2.76
CY2017Q2	cb	Annualdividendpershareapprovedbyshareholders Annualdividendpershareapprovedbyshareholders	2.84
CY2018Q2	cb	Annualdividendpershareapprovedbyshareholders Annualdividendpershareapprovedbyshareholders	2.92
CY2018	cb	Borrowers Collateral Percent Of Fair Value Loaned Securities BorrowersCollateralPercentOfFairValueLoanedSecurities	1.02
CY2016	cb	Chubb Foundation Contribution ChubbFoundationContribution	0	USD
CY2017	cb	Chubb Foundation Contribution ChubbFoundationContribution	50000000	USD
CY2018	cb	Chubb Foundation Contribution ChubbFoundationContribution	0	USD
CY2017	cb	Common Stock Dividend Rate Per Dollar Amount CommonStockDividendRatePerDollarAmount	0.69
CY2018	cb	Common Stock Dividend Rate Per Dollar Amount CommonStockDividendRatePerDollarAmount	0.71
CY2019	cb	Common Stock Dividend Rate Per Dollar Amount CommonStockDividendRatePerDollarAmount	0.73
CY2018Q4	cb	Common Stock Maximum Ownership Percentage For Voting CommonStockMaximumOwnershipPercentageForVoting	0.10
CY2018Q4	cb	Concentration Risk Percentage Marsh ConcentrationRiskPercentageMarsh	0.1
CY2018	cb	Deferred Marketing Costs Amortization Period DeferredMarketingCostsAmortizationPeriod	P10Y
CY2017	cb	Definedbenefitplanbenefitspaidinclusiveofsettlements Definedbenefitplanbenefitspaidinclusiveofsettlements	200000000	USD
CY2018	cb	Definedbenefitplanbenefitspaidinclusiveofsettlements Definedbenefitplanbenefitspaidinclusiveofsettlements	209000000	USD
CY2016	cb	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries	0	USD
CY2017	cb	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries	0	USD
CY2018	cb	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries	0	USD
CY2018Q4	cb	Finitelivedintangibleassetsamortizationexpensetotal Finitelivedintangibleassetsamortizationexpensetotal	1322000000	USD
CY2018Q4	cb	Fixed Maturities In Unrealized Loss Position Number FixedMaturitiesInUnrealizedLossPositionNumber	19606	Security
CY2018Q4	cb	Fixed Maturities Largest Single Unrealized Loss FixedMaturitiesLargestSingleUnrealizedLoss	10000000	USD
CY2018Q4	cb	Fixed Maturities Total Number FixedMaturitiesTotalNumber	31054	Security
CY2016	cb	Gains Losses On Fair Value Changes In Separate Account Assets GainsLossesOnFairValueChangesInSeparateAccountAssets	11000000	USD
CY2017	cb	Gains Losses On Fair Value Changes In Separate Account Assets GainsLossesOnFairValueChangesInSeparateAccountAssets	97000000	USD
CY2018	cb	Gains Losses On Fair Value Changes In Separate Account Assets GainsLossesOnFairValueChangesInSeparateAccountAssets	-38000000	USD
CY2018	cb	Goodwill Impairment Testing Qualitative Assessment Percentage Probability GoodwillImpairmentTestingQualitativeAssessmentPercentageProbability	0.50
CY2018Q4	cb	Guaranteed Living Benefits Adjustment Factor For Valuable Guarantees Lower Range GuaranteedLivingBenefitsAdjustmentFactorForValuableGuaranteesLowerRange	0.15
CY2018Q4	cb	Guaranteed Living Benefits Adjustment Factor For Valuable Guarantees Upper Range GuaranteedLivingBenefitsAdjustmentFactorForValuableGuaranteesUpperRange	0.75
CY2018Q4	cb	Guaranteed Living Benefits Lapse Rate Base Lower Range GuaranteedLivingBenefitsLapseRateBaseLowerRange	0.03
CY2018Q4	cb	Guaranteed Living Benefits Lapse Rate Base Upper Range GuaranteedLivingBenefitsLapseRateBaseUpperRange	0.09
CY2018Q4	cb	Guaranteed Living Benefits Lapse Rate Spike Lower Range GuaranteedLivingBenefitsLapseRateSpikeLowerRange	0.09
CY2018Q4	cb	Guaranteed Living Benefits Lapse Rate Spike Upper Range GuaranteedLivingBenefitsLapseRateSpikeUpperRange	0.33
CY2018Q4	cb	Guaranteed Living Benefits Lapse Rate Ultimate Period GuaranteedLivingBenefitsLapseRateUltimatePeriod	2	Year
CY2018Q4	cb	Guaranteed Living Benefits Lapse Rate Ultimate Range GuaranteedLivingBenefitsLapseRateUltimateRange	0.10
CY2016	cb	Income Tax Reconciliation Corporate Owned Life Insurance IncomeTaxReconciliationCorporateOwnedLifeInsurance	0	USD
CY2017	cb	Income Tax Reconciliation Corporate Owned Life Insurance IncomeTaxReconciliationCorporateOwnedLifeInsurance	-37000000	USD
CY2018	cb	Income Tax Reconciliation Corporate Owned Life Insurance IncomeTaxReconciliationCorporateOwnedLifeInsurance	2000000	USD
CY2016	cb	Income Tax Reconciliation Net Witholding Taxes IncomeTaxReconciliationNetWitholdingTaxes	20000000	USD
CY2017	cb	Income Tax Reconciliation Net Witholding Taxes IncomeTaxReconciliationNetWitholdingTaxes	30000000	USD
CY2018	cb	Income Tax Reconciliation Net Witholding Taxes IncomeTaxReconciliationNetWitholdingTaxes	33000000	USD
CY2016	cb	Incometaxbenefitrelatedto2017 Tax Act Incometaxbenefitrelatedto2017TaxAct	0	USD
CY2017	cb	Incometaxbenefitrelatedto2017 Tax Act Incometaxbenefitrelatedto2017TaxAct	-450000000	USD
CY2018	cb	Incometaxbenefitrelatedto2017 Tax Act Incometaxbenefitrelatedto2017TaxAct	-25000000	USD
CY2016	cb	Increase Decrease In Reinsurance Recoverable Losses And Loss Expenses IncreaseDecreaseInReinsuranceRecoverableLossesAndLossExpenses	-358000000	USD
CY2017	cb	Increase Decrease In Reinsurance Recoverable Losses And Loss Expenses IncreaseDecreaseInReinsuranceRecoverableLossesAndLossExpenses	-1248000000	USD
CY2018	cb	Increase Decrease In Reinsurance Recoverable Losses And Loss Expenses IncreaseDecreaseInReinsuranceRecoverableLossesAndLossExpenses	-1165000000	USD
CY2016	cb	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Foreign Exchange Revaluation IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationForeignExchangeRevaluation	1000000	USD
CY2017	cb	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Foreign Exchange Revaluation IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationForeignExchangeRevaluation	6000000	USD
CY2018	cb	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Foreign Exchange Revaluation IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationForeignExchangeRevaluation	-6000000	USD
CY2017Q4	cb	Investments In Subsidiaries To Be Eliminated Upon Consolidation InvestmentsInSubsidiariesToBeEliminatedUponConsolidation	0	USD
CY2018Q4	cb	Investments In Subsidiaries To Be Eliminated Upon Consolidation InvestmentsInSubsidiariesToBeEliminatedUponConsolidation	0	USD
CY2016Q4	cb	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Revaluation And Other LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyRevaluationAndOther	-469000000	USD
CY2017Q4	cb	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Revaluation And Other LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyRevaluationAndOther	327000000	USD
CY2018Q4	cb	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Revaluation And Other LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyRevaluationAndOther	-621000000	USD
CY2016Q4	cb	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Claims Net Of Reinsurance Recoverable Adjusted For Subsidiary Acquisition LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedClaimsNetOfReinsuranceRecoverableAdjustedForSubsidiaryAcquisition	47964000000	USD
CY2017Q4	cb	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Claims Net Of Reinsurance Recoverable Adjusted For Subsidiary Acquisition LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedClaimsNetOfReinsuranceRecoverableAdjustedForSubsidiaryAcquisition	47832000000	USD
CY2018Q4	cb	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Claims Net Of Reinsurance Recoverable Adjusted For Subsidiary Acquisition LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedClaimsNetOfReinsuranceRecoverableAdjustedForSubsidiaryAcquisition	49165000000	USD
CY2018	cb	Limited Partnerships Number LimitedPartnershipsNumber	145	partnerships
CY2018	cb	Moodys Historical Mean Recovery Rate MoodysHistoricalMeanRecoveryRate	0.42
CY2017Q4	cb	Mortgage Backed Securities Percentage United States Government Agency Bonds MortgageBackedSecuritiesPercentageUnitedStatesGovernmentAgencyBonds	0.83
CY2018Q4	cb	Mortgage Backed Securities Percentage United States Government Agency Bonds MortgageBackedSecuritiesPercentageUnitedStatesGovernmentAgencyBonds	0.81
CY2016	cb	Net Operating Results Of Esis Included Within Administrative Expenses NetOperatingResultsOfEsisIncludedWithinAdministrativeExpenses	32000000	USD
CY2017	cb	Net Operating Results Of Esis Included Within Administrative Expenses NetOperatingResultsOfEsisIncludedWithinAdministrativeExpenses	38000000	USD
CY2018	cb	Net Operating Results Of Esis Included Within Administrative Expenses NetOperatingResultsOfEsisIncludedWithinAdministrativeExpenses	49000000	USD
CY2016	cb	Net Prior Period Development NetPriorPeriodDevelopment	-1135000000	USD
CY2017	cb	Net Prior Period Development NetPriorPeriodDevelopment	-829000000	USD
CY2018	cb	Net Prior Period Development NetPriorPeriodDevelopment	-896000000	USD
CY2017	cb	Net Unrealized Appreciation Included In Other Comprehensive Income NetUnrealizedAppreciationIncludedInOtherComprehensiveIncome	-2000000	USD
CY2018	cb	Net Unrealized Appreciation Included In Other Comprehensive Income NetUnrealizedAppreciationIncludedInOtherComprehensiveIncome	-4000000	USD
CY2017Q4	cb	Other Assets Condensed OtherAssetsCondensed	16795000000	USD
CY2018Q4	cb	Other Assets Condensed OtherAssetsCondensed	17484000000	USD
CY2018Q4	cb	Other Investments Limited Partnerships And Partially Owned Investment Companies Carrying Value OtherInvestmentsLimitedPartnershipsAndPartiallyOwnedInvestmentCompaniesCarryingValue	4200000000	USD
CY2018Q4	cb	Other Investments Limited Partnerships And Partially Owned Investment Companies Funding Commitments OtherInvestmentsLimitedPartnershipsAndPartiallyOwnedInvestmentCompaniesFundingCommitments	3700000000	USD
CY2018	cb	Pp Dadjustments PPDadjustments	63000000	USD
CY2016	cb	Payment Of Contributions To Subsidiary PaymentOfContributionsToSubsidiary	0	USD
CY2018	cb	Payment Of Contributions To Subsidiary PaymentOfContributionsToSubsidiary	0	USD
CY2016	cb	Payments To Acquire Available For Sale Securities Debt Condensed PaymentsToAcquireAvailableForSaleSecuritiesDebtCondensed	30815000000	USD
CY2017	cb	Payments To Acquire Available For Sale Securities Debt Condensed PaymentsToAcquireAvailableForSaleSecuritiesDebtCondensed	25747000000	USD
CY2018	cb	Payments To Acquire Available For Sale Securities Debt Condensed PaymentsToAcquireAvailableForSaleSecuritiesDebtCondensed	24735000000	USD
CY2016	cb	Payments To Acquire To Be Announced Mortgage Backed Securities PaymentsToAcquireToBeAnnouncedMortgageBackedSecurities	56000000	USD
CY2017	cb	Payments To Acquire To Be Announced Mortgage Backed Securities PaymentsToAcquireToBeAnnouncedMortgageBackedSecurities	27000000	USD
CY2018	cb	Payments To Acquire To Be Announced Mortgage Backed Securities PaymentsToAcquireToBeAnnouncedMortgageBackedSecurities	35000000	USD
CY2018	cb	Paymentstoacquireequitysecurities Paymentstoacquireequitysecurities	207000000	USD
CY2016	cb	Policy Acquisition Costs And Administrative Expenses PolicyAcquisitionCostsAndAdministrativeExpenses	8985000000	USD
CY2017	cb	Policy Acquisition Costs And Administrative Expenses PolicyAcquisitionCostsAndAdministrativeExpenses	8614000000	USD
CY2018	cb	Policy Acquisition Costs And Administrative Expenses PolicyAcquisitionCostsAndAdministrativeExpenses	8798000000	USD
CY2018Q4	cb	Portion Of Gross Unrealized Loss Represented By United States Treasury And Agency Obligations PortionOfGrossUnrealizedLossRepresentedByUnitedStatesTreasuryAndAgencyObligations	630000000	USD
CY2016Q4	cb	Prior Period Development Percentage Opening Net Unpaid Reserves PriorPeriodDevelopmentPercentageOpeningNetUnpaidReserves	0.024
CY2017Q4	cb	Prior Period Development Percentage Opening Net Unpaid Reserves PriorPeriodDevelopmentPercentageOpeningNetUnpaidReserves	0.017
CY2018Q4	cb	Prior Period Development Percentage Opening Net Unpaid Reserves PriorPeriodDevelopmentPercentageOpeningNetUnpaidReserves	0.018
CY2016	cb	Priorperioddevelopmentnetadjustments Priorperioddevelopmentnetadjustments	69000000	USD
CY2017	cb	Priorperioddevelopmentnetadjustments Priorperioddevelopmentnetadjustments	108000000	USD
CY2018	cb	Priorperioddevelopmentnetadjustments Priorperioddevelopmentnetadjustments	85000000	USD
CY2016	cb	Proceeds From Sale Of Available For Sale Securities Debt Condensed ProceedsFromSaleOfAvailableForSaleSecuritiesDebtCondensed	16677000000	USD
CY2017	cb	Proceeds From Sale Of Available For Sale Securities Debt Condensed ProceedsFromSaleOfAvailableForSaleSecuritiesDebtCondensed	13255000000	USD
CY2018	cb	Proceeds From Sale Of Available For Sale Securities Debt Condensed ProceedsFromSaleOfAvailableForSaleSecuritiesDebtCondensed	14030000000	USD
CY2016	cb	Proceeds From Sales To Be Announced Mortgage Backed Securities ProceedsFromSalesToBeAnnouncedMortgageBackedSecurities	56000000	USD
CY2017	cb	Proceeds From Sales To Be Announced Mortgage Backed Securities ProceedsFromSalesToBeAnnouncedMortgageBackedSecurities	27000000	USD
CY2018	cb	Proceeds From Sales To Be Announced Mortgage Backed Securities ProceedsFromSalesToBeAnnouncedMortgageBackedSecurities	29000000	USD
CY2018	cb	Proceedsfrom Saleof Equity Securities ProceedsfromSaleofEquitySecurities	315000000	USD
CY2018	cb	Recoverable From Unrated Reinsurers Ceded Reserve Default Factor RecoverableFromUnratedReinsurersCededReserveDefaultFactor	0.34
CY2017Q4	cb	Reinsurance Recoverable Future Policy Benefits ReinsuranceRecoverableFuturePolicyBenefits	184000000	USD
CY2018Q4	cb	Reinsurance Recoverable Future Policy Benefits ReinsuranceRecoverableFuturePolicyBenefits	202000000	USD
CY2017Q4	cb	Reinsurance Recoverable Losses And Loss Expenses ReinsuranceRecoverableLossesAndLossExpenses	15034000000	USD
CY2018Q4	cb	Reinsurance Recoverable Losses And Loss Expenses ReinsuranceRecoverableLossesAndLossExpenses	15993000000	USD
CY2017Q4	cb	Reinsurance Recoverableson Future Policy Benefits Allowance ReinsuranceRecoverablesonFuturePolicyBenefitsAllowance	4000000	USD
CY2018Q4	cb	Reinsurance Recoverableson Future Policy Benefits Allowance ReinsuranceRecoverablesonFuturePolicyBenefitsAllowance	4000000	USD
CY2016	cb	Reinsurance Recoveries Losses And Loss Expenses Incurred ReinsuranceRecoveriesLossesAndLossExpensesIncurred	4100000000	USD
CY2017	cb	Reinsurance Recoveries Losses And Loss Expenses Incurred ReinsuranceRecoveriesLossesAndLossExpensesIncurred	5500000000	USD
CY2017Q4	cb	Restricted Assets Deposits With United States Regulatory Authorities RestrictedAssetsDepositsWithUnitedStatesRegulatoryAuthorities	2345000000	USD
CY2018Q4	cb	Restricted Assets Deposits With United States Regulatory Authorities RestrictedAssetsDepositsWithUnitedStatesRegulatoryAuthorities	2405000000	USD
CY2018	cb	Reinsurance Recoveries Losses And Loss Expenses Incurred ReinsuranceRecoveriesLossesAndLossExpensesIncurred	5600000000	USD
CY2017Q4	cb	Restricted Assets Deposits With Non United States Regulatory Authorities RestrictedAssetsDepositsWithNonUnitedStatesRegulatoryAuthorities	2250000000	USD
CY2018Q4	cb	Restricted Assets Deposits With Non United States Regulatory Authorities RestrictedAssetsDepositsWithNonUnitedStatesRegulatoryAuthorities	2531000000	USD
CY2017Q4	cb	Restricted Assets Other Pledged Assets RestrictedAssetsOtherPledgedAssets	414000000	USD
CY2018Q4	cb	Restricted Assets Other Pledged Assets RestrictedAssetsOtherPledgedAssets	692000000	USD
CY2016	cb	Restricted Stock Units Issued To Non Management Directors During Period Shares Restricted Stock Award RestrictedStockUnitsIssuedToNonManagementDirectorsDuringPeriodSharesRestrictedStockAward	23812	shares
CY2017	cb	Restricted Stock Units Issued To Non Management Directors During Period Shares Restricted Stock Award RestrictedStockUnitsIssuedToNonManagementDirectorsDuringPeriodSharesRestrictedStockAward	22013	shares
CY2018	cb	Restricted Stock Units Issued To Non Management Directors During Period Shares Restricted Stock Award RestrictedStockUnitsIssuedToNonManagementDirectorsDuringPeriodSharesRestrictedStockAward	20784	shares
CY2016	cb	Segment Underwriting Income Lossand Net Investment Income Loss SegmentUnderwritingIncomeLossandNetInvestmentIncomeLoss	6192000000	USD
CY2017	cb	Segment Underwriting Income Lossand Net Investment Income Loss SegmentUnderwritingIncomeLossandNetInvestmentIncomeLoss	4555000000	USD
CY2018	cb	Segment Underwriting Income Lossand Net Investment Income Loss SegmentUnderwritingIncomeLossandNetInvestmentIncomeLoss	6009000000	USD
CY2016	cb	Underwriting Income Loss Insurance UnderwritingIncomeLossInsurance	3124000000	USD
CY2017	cb	Underwriting Income Loss Insurance UnderwritingIncomeLossInsurance	1290000000	USD
CY2018	cb	Underwriting Income Loss Insurance UnderwritingIncomeLossInsurance	2609000000	USD
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0000896159
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	458380937	shares
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018Q2	dei	Entity Public Float EntityPublicFloat	59000000000	USD
CY2018	dei	Entity Registrant Name EntityRegistrantName	Chubb Ltd
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2018	dei	Trading Symbol TradingSymbol	CB
CY2017Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	3122000000	USD
CY2018Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	8543000000	USD
CY2017Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	9545000000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	10472000000	USD
CY2017Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	909000000	USD
CY2018Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	883000000	USD
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CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities	7000000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Heldtomaturity Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxHeldtomaturityDebtSecurities	0	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	13978000000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	12557000000	USD
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CY2018	us-gaap	Additions To Contract Holders Funds AdditionsToContractHoldersFunds	453000000	USD
CY2017Q4	us-gaap	Alternative Investment AlternativeInvestment	3623000000	USD
CY2018Q4	us-gaap	Alternative Investment AlternativeInvestment	4244000000	USD
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CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	592000000	USD
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CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	339000000	USD
CY2016	us-gaap	Amortization Of Value Of Business Acquired Voba AmortizationOfValueOfBusinessAcquiredVOBA	41000000	USD
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CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1776025	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3543188	shares
CY2017Q4	us-gaap	Assets Assets	167022000000	USD
CY2018Q4	us-gaap	Assets Assets	167771000000	USD
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CY2017	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	3332000000	USD
CY2018	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	3175000000	USD
CY2016	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	3440000000	USD
CY2017	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	3239000000	USD
CY2018	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	3186000000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1528000000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	690000000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	424000000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1543000000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	77835000000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	79323000000	USD
CY2017Q4	us-gaap	Available For Sale Equity Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax	212000000	USD
CY2017Q4	us-gaap	Available For Sale Equity Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax	12000000	USD
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CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	484000000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	37570000000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	257000000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	28685000000	USD
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CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	24095000000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	25704000000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	23543000000	USD
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CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	27134000000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	25068000000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	27005000000	USD
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CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	8814000000	USD
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CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	3569000000	USD
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CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	15279000000	USD
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CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	15290000000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	15540000000	USD
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CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	24.15
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	24.15
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CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	479783864	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	479783864	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	479783864	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	479783864	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	479783864	shares
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CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	463833179	shares
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CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	652000000	USD
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CY2017Q4	us-gaap	Deferred Advertising Costs DeferredAdvertisingCosts	271000000	USD
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CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-498000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	43000000	USD
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CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	2290000000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	699000000	USD
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CY2018	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	5912000000	USD
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CY2018Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	4922000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	90000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	137000000	USD
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CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	2065000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	340000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	262000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	260000000	USD
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CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Currency Losses DeferredTaxAssetsUnrealizedCurrencyLosses	43000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Trading Securities DeferredTaxAssetsUnrealizedLossesOnTradingSecurities	0	USD
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CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	99000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	79000000	USD
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CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.77
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CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.19
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.30
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1437000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1440000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	53000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	59000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	83000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	123000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	66000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	47000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	184000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	0	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	150000000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	166000000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	171000000	USD
CY2017Q4	us-gaap	Deposit Assets DepositAssets	89000000	USD
CY2018Q4	us-gaap	Deposit Assets DepositAssets	97000000	USD
CY2017Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	100000000	USD
CY2018Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	97000000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	24000000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	95000000	USD
CY2016	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-126000000	USD
CY2017	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	87000000	USD
CY2018	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-330000000	USD
CY2016	us-gaap	Direct Premiums Earned DirectPremiumsEarned	31811000000	USD
CY2017	us-gaap	Direct Premiums Earned DirectPremiumsEarned	32782000000	USD
CY2018	us-gaap	Direct Premiums Earned DirectPremiumsEarned	34108000000	USD
CY2016	us-gaap	Direct Premiums Written DirectPremiumsWritten	31543000000	USD
CY2017	us-gaap	Direct Premiums Written DirectPremiumsWritten	33137000000	USD
CY2018	us-gaap	Direct Premiums Written DirectPremiumsWritten	34782000000	USD
CY2017Q4	us-gaap	Due From Affiliates DueFromAffiliates	0	USD
CY2018Q4	us-gaap	Due From Affiliates DueFromAffiliates	0	USD
CY2017Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	0	USD
CY2018Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	0	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.94
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.33
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.79
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.15
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.29
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.26
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.32
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.78
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.66
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.77
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.55
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.87
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.31
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.76
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.64
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.49
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-25000000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1000000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-65000000	USD
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	0	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-48000000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-19000000	USD
CY2018Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	458000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	48000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	19000000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	770000000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	770000000	USD
CY2016	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	19000000	USD
CY2017	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	35000000	USD
CY2018	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	12000000	USD
CY2017Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	4061000000	USD
CY2018Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	3705000000	USD
CY2016	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	53000000	USD
CY2017	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	364000000	USD
CY2018	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-248000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	298000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	232000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	246000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	266000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	280000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3500000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3200000000	USD
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	118000000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	36000000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	131000000	USD
CY2017Q4	us-gaap	Funds Held Under Reinsurance Agreements Asset FundsHeldUnderReinsuranceAgreementsAsset	17011000000	USD
CY2018Q4	us-gaap	Funds Held Under Reinsurance Agreements Asset FundsHeldUnderReinsuranceAgreementsAsset	13988000000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	3081000000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	2833000000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	2886000000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	15332000000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	15541000000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	15271000000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	209000000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-270000000	USD
CY2016	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	3006000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	14474000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount	2724000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount	2524000000	USD
CY2017	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	3289000000	USD
CY2018	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	3473000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	14335000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	13435000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	179000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	51000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	40000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	227000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	4756000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	4407000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	4744000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	4468000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2688000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	3106000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	2669000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	3122000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	3542000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	2723000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	3455000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	2785000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	11611000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	10911000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	11732000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	10773000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	746000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	537000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	743000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	536000000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	2742000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	2486000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	13259000000	USD
CY2017Q4	us-gaap	Hybrid Instruments At Fair Value Net HybridInstrumentsAtFairValueNet	5000000	USD
CY2018Q4	us-gaap	Hybrid Instruments At Fair Value Net HybridInstrumentsAtFairValueNet	9000000	USD
CY2016	us-gaap	Impairment Of Investments ImpairmentOfInvestments	111000000	USD
CY2017	us-gaap	Impairment Of Investments ImpairmentOfInvestments	46000000	USD
CY2018	us-gaap	Impairment Of Investments ImpairmentOfInvestments	52000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	766000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	527000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	950000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4950000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3722000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4657000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	4184000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	3195000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	3707000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4950000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3722000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4657000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	264000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	418000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	514000000	USD
CY2018	us-gaap	Income Tax Examination Description IncomeTaxExaminationDescription	0.5
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	815000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-139000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	695000000	USD
CY2017Q4	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	475000000	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	582000000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	263000000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	372000000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	388000000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	291000000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	365000000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	25000000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	11000000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	42000000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	200000000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	199000000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	75000000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	662000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	736000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	503000000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-97000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-517000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	375000000	USD
CY2016	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	147000000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-365000000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	161000000	USD
CY2016	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-96000000	USD
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	527000000	USD
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-16000000	USD
CY2016	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	1449000000	USD
CY2017	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	317000000	USD
CY2018	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	301000000	USD
CY2016	us-gaap	Increase Decrease In Future Policy Benefit Reserves IncreaseDecreaseInFuturePolicyBenefitReserves	188000000	USD
CY2017	us-gaap	Increase Decrease In Future Policy Benefit Reserves IncreaseDecreaseInFuturePolicyBenefitReserves	217000000	USD
CY2018	us-gaap	Increase Decrease In Future Policy Benefit Reserves IncreaseDecreaseInFuturePolicyBenefitReserves	235000000	USD
CY2016	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	332000000	USD
CY2017	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	2137000000	USD
CY2018	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	570000000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-286000000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-100000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	351000000	USD
CY2016	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	616000000	USD
CY2017	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	243000000	USD
CY2018	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	981000000	USD
CY2016	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	848000000	USD
CY2017	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	271000000	USD
CY2018	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	722000000	USD
CY2016	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-680000000	USD
CY2017	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	264000000	USD
CY2018	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	654000000	USD
CY2016	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	604000000	USD
CY2017	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	-210000000	USD
CY2018	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	-515000000	USD
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3429610	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4051185	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3173145	shares
CY2017Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	3000000000	USD
CY2018Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	2900000000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	6513000000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	6143000000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	22054000000	USD
CY2018Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	21414000000	USD
CY2016	us-gaap	Interest Expense InterestExpense	605000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	607000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	641000000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-605000000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-607000000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-641000000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	642000000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	644000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	621000000	USD
CY2016	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	141000000	USD
CY2017	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	164000000	USD
CY2018	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	168000000	USD
CY2016	us-gaap	Investment Income Net InvestmentIncomeNet	2865000000	USD
CY2017	us-gaap	Investment Income Net InvestmentIncomeNet	3125000000	USD
CY2018	us-gaap	Investment Income Net InvestmentIncomeNet	3305000000	USD
CY2017Q4	us-gaap	Investments Investments	102444000000	USD
CY2018Q4	us-gaap	Investments Investments	100968000000	USD
CY2017Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	662000000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	678000000	USD
CY2017Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	308000000	USD
CY2018Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	308000000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	209000000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	211000000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	169000000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	115850000000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	117459000000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	167022000000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	167771000000	USD
CY2017Q4	us-gaap	Liability For Asbestos And Environmental Claims Gross LiabilityForAsbestosAndEnvironmentalClaimsGross	2228000000	USD
CY2018Q4	us-gaap	Liability For Asbestos And Environmental Claims Gross LiabilityForAsbestosAndEnvironmentalClaimsGross	2117000000	USD
CY2018	us-gaap	Liability For Asbestos And Environmental Claims Gross Incurred Loss1 LiabilityForAsbestosAndEnvironmentalClaimsGrossIncurredLoss1	237000000	USD
CY2018	us-gaap	Liability For Asbestos And Environmental Claims Gross Payment For Claims LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentForClaims	348000000	USD
CY2017Q4	us-gaap	Liability For Asbestos And Environmental Claims Net LiabilityForAsbestosAndEnvironmentalClaimsNet	1527000000	USD
CY2018Q4	us-gaap	Liability For Asbestos And Environmental Claims Net LiabilityForAsbestosAndEnvironmentalClaimsNet	1447000000	USD
CY2018	us-gaap	Liability For Asbestos And Environmental Claims Net Incurred Loss1 LiabilityForAsbestosAndEnvironmentalClaimsNetIncurredLoss1	-22000000	USD
CY2018	us-gaap	Liability For Asbestos And Environmental Claims Net Payment For Claims LiabilityForAsbestosAndEnvironmentalClaimsNetPaymentForClaims	58000000	USD
CY2015Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	37303000000	USD
CY2016Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	60540000000	USD
CY2017Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	63179000000	USD
CY2018Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	62960000000	USD
CY2017Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	5321000000	USD
CY2018Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	5506000000	USD
CY2016	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	588000000	USD
CY2017Q1	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	168000000	USD
CY2017Q2	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	163000000	USD
CY2017Q3	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	169000000	USD
CY2017Q4	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	176000000	USD
CY2017	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	676000000	USD
CY2018Q1	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	151000000	USD
CY2018Q2	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	150000000	USD
CY2018Q3	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	127000000	USD
CY2018Q4	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	162000000	USD
CY2018	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	590000000	USD
CY2016	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	21402000000	USD
CY2016	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	21400000000	USD
CY2017	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	0	USD
CY2018	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	0	USD
CY2016	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	5899000000	USD
CY2017	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	6575000000	USD
CY2018	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	7544000000	USD
CY2016	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	9816000000	USD
CY2017	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	10873000000	USD
CY2018	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	10796000000	USD
CY2016	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	16052000000	USD
CY2017	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	18454000000	USD
CY2018	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	18067000000	USD
CY2015Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	26562000000	USD
CY2016Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	47832000000	USD
CY2017Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	49165000000	USD
CY2018Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	48271000000	USD
CY2018Q4	us-gaap	Line Of Credit Facility Capacity Available For Specific Purpose Other Than For Trade Purchases LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases	1000000000	USD
CY2017Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	1000000000	USD
CY2018Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	2000000000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	11556000000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	12087000000	USD
CY2017Q3	us-gaap	Loss From Catastrophes LossFromCatastrophes	1500000000	USD
CY2018Q4	us-gaap	Loss From Catastrophes LossFromCatastrophes	506000000	USD
CY2018	us-gaap	Net Amount At Risk By Product And Guarantee Weighted Average Attained Age1 NetAmountAtRiskByProductAndGuaranteeWeightedAverageAttainedAge1	P71Y
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-742000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-2319000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-1991000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-5322000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2422000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2935000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	5292000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	4503000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	5480000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	4135000000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	1093000000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	1305000000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	-70000000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	1533000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	3861000000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	1082000000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	1294000000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	1231000000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	355000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	3962000000	USD
CY2016	us-gaap	Net Investment Income NetInvestmentIncome	2865000000	USD
CY2017Q1	us-gaap	Net Investment Income NetInvestmentIncome	745000000	USD
CY2017Q2	us-gaap	Net Investment Income NetInvestmentIncome	770000000	USD
CY2017Q3	us-gaap	Net Investment Income NetInvestmentIncome	813000000	USD
CY2017Q4	us-gaap	Net Investment Income NetInvestmentIncome	797000000	USD
CY2017	us-gaap	Net Investment Income NetInvestmentIncome	3125000000	USD
CY2018Q1	us-gaap	Net Investment Income NetInvestmentIncome	806000000	USD
CY2018Q2	us-gaap	Net Investment Income NetInvestmentIncome	828000000	USD
CY2018Q3	us-gaap	Net Investment Income NetInvestmentIncome	823000000	USD
CY2018Q4	us-gaap	Net Investment Income NetInvestmentIncome	848000000	USD
CY2018	us-gaap	Net Investment Income NetInvestmentIncome	3305000000	USD
CY2017Q4	us-gaap	Obligation To Return Securities Received As Collateral ObligationToReturnSecuritiesReceivedAsCollateral	1737000000	USD
CY2018Q4	us-gaap	Obligation To Return Securities Received As Collateral ObligationToReturnSecuritiesReceivedAsCollateral	1926000000	USD
CY2018	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	24000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	820000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	173000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	86000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	100000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	126000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	151000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	184000000	USD
CY2018	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	23000000	USD
CY2017Q4	us-gaap	Other Assets OtherAssets	6235000000	USD
CY2018Q4	us-gaap	Other Assets OtherAssets	6531000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	84000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	633000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-1996000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-72000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	228000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-338000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-100000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	241000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-297000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	475000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1088000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-3119000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-154000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	471000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-802000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	30000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	5000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	35000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	421000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	857000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2720000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-545000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	16000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	321000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-184000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	5000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	67000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-119000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-15000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-302000000	USD
CY2017	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	2000000	USD
CY2017Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	3561000000	USD
CY2018Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	3016000000	USD
CY2016	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	14000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	28000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-13000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-41000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	54000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	231000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-399000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-35000000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	618000000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-2298000000	USD
CY2017Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	6500000000	USD
CY2018Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	6100000000	USD
CY2017Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	4417000000	USD
CY2018Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	5277000000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	17849000000	USD
CY2018Q4	us-gaap	Other Liabilities OtherLiabilities	19139000000	USD
CY2017Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	4672000000	USD
CY2018Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	5277000000	USD
CY2016	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	34000000	USD
CY2017	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	30000000	USD
CY2018	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	30000000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	222000000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	400000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	434000000	USD
CY2016	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	222000000	USD
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	400000000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	434000000	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	5000000	USD
CY2016	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	17000000	USD
CY2017	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	4000000	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	20000000	USD
CY2015Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	53000000	USD
CY2016Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	35000000	USD
CY2017Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	22000000	USD
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	34000000	USD
CY2016	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	49000000	USD
CY2017	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	19000000	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	13000000	USD
CY2018	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	49000000	USD
CY2016	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	8000000	USD
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	1000000	USD
CY2018	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	3000000	USD
CY2016	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	103000000	USD
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	45000000	USD
CY2016	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	15715000000	USD
CY2017	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	17448000000	USD
CY2018	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	18340000000	USD
CY2016	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	0	USD
CY2016	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	168000000	USD
CY2017	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	265000000	USD
CY2018	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-16000000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	402000000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	530000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	533000000	USD
CY2016	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-12350000000	USD
CY2017	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	537000000	USD
CY2018	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-516000000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	801000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1044000000	USD
CY2016	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	2311000000	USD
CY2017	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	2348000000	USD
CY2018	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	2019000000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1173000000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1308000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1337000000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	30759000000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	25720000000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	24700000000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	146000000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	173000000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	207000000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	14248000000	USD
CY2016	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	282000000	USD
CY2017	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	352000000	USD
CY2018	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	456000000	USD
CY2016	us-gaap	Payments To Acquire Limited Partnership Interests PaymentsToAcquireLimitedPartnershipInterests	553000000	USD
CY2017	us-gaap	Payments To Acquire Limited Partnership Interests PaymentsToAcquireLimitedPartnershipInterests	648000000	USD
CY2018	us-gaap	Payments To Acquire Limited Partnership Interests PaymentsToAcquireLimitedPartnershipInterests	1337000000	USD
CY2018Q4	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	28000000	USD
CY2017Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	1434000000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	1468000000	USD
CY2016	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	16052000000	USD
CY2017Q1	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	3789000000	USD
CY2017Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	4146000000	USD
CY2017Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	6247000000	USD
CY2017Q4	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	4272000000	USD
CY2017	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	18454000000	USD
CY2018Q1	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	4102000000	USD
CY2018Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	4487000000	USD
CY2018Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	4868000000	USD
CY2018Q4	us-gaap	Present Value Of Future Insurance Profits Amortization Expense Year Five PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearFive	18000000	USD
CY2018Q4	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	4610000000	USD
CY2018	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	18067000000	USD
CY2016	us-gaap	Premiums Earned Net PremiumsEarnedNet	28749000000	USD
CY2017Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	6772000000	USD
CY2017Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	7237000000	USD
CY2017Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	7807000000	USD
CY2017Q4	us-gaap	Premiums Earned Net PremiumsEarnedNet	7218000000	USD
CY2017	us-gaap	Premiums Earned Net PremiumsEarnedNet	29034000000	USD
CY2018Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	7027000000	USD
CY2018Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	7664000000	USD
CY2018Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	7908000000	USD
CY2018Q4	us-gaap	Premiums Earned Net PremiumsEarnedNet	7465000000	USD
CY2018	us-gaap	Premiums Earned Net PremiumsEarnedNet	30064000000	USD
CY2016	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.13
CY2017	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.11
CY2018	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.11
CY2017Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	9334000000	USD
CY2018Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	10075000000	USD
CY2016	us-gaap	Premiums Written Net PremiumsWrittenNet	28145000000	USD
CY2017	us-gaap	Premiums Written Net PremiumsWrittenNet	29244000000	USD
CY2018	us-gaap	Premiums Written Net PremiumsWrittenNet	30579000000	USD
CY2017Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	2529000000	USD
CY2018Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	2544000000	USD
CY2018Q4	us-gaap	Present Value Of Future Insurance Profits Accumulated Amortization PresentValueOfFutureInsuranceProfitsAccumulatedAmortization	110000000	USD
CY2016	us-gaap	Present Value Of Future Insurance Profits Amortization Expense1 PresentValueOfFutureInsuranceProfitsAmortizationExpense1	1578000000	USD
CY2017	us-gaap	Present Value Of Future Insurance Profits Amortization Expense1 PresentValueOfFutureInsuranceProfitsAmortizationExpense1	260000000	USD
CY2018	us-gaap	Present Value Of Future Insurance Profits Amortization Expense1 PresentValueOfFutureInsuranceProfitsAmortizationExpense1	339000000	USD
CY2018Q4	us-gaap	Present Value Of Future Insurance Profits Amortization Expense Year Four PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearFour	20000000	USD
CY2018Q4	us-gaap	Present Value Of Future Insurance Profits Amortization Expense Year One PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearOne	26000000	USD
CY2018Q4	us-gaap	Present Value Of Future Insurance Profits Amortization Expense Year Three PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearThree	22000000	USD
CY2018Q4	us-gaap	Present Value Of Future Insurance Profits Amortization Expense Year Two PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearTwo	24000000	USD
CY2018	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2171000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	167000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	151000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	115000000	USD
CY2016	us-gaap	Proceeds From Limited Partnership Investments ProceedsFromLimitedPartnershipInvestments	958000000	USD
CY2017	us-gaap	Proceeds From Limited Partnership Investments ProceedsFromLimitedPartnershipInvestments	1084000000	USD
CY2018	us-gaap	Proceeds From Limited Partnership Investments ProceedsFromLimitedPartnershipInvestments	980000000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	9349000000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	10425000000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	7352000000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	958000000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	879000000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1124000000	USD
CY2016	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	2310000000	USD
CY2017	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	2353000000	USD
CY2018	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	2029000000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4000000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2016	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	0	USD
CY2017	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	0	USD
CY2018	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	0	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	16621000000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	13228000000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	14001000000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	1000000000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	187000000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	315000000	USD
CY2016	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	2310000000	USD
CY2017	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	2353000000	USD
CY2018	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	2029000000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	78000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1300000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1700000000	USD
CY2018Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	711000000	USD
CY2016	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	-145000000	USD
CY2017Q1	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	-7000000	USD
CY2017Q2	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	101000000	USD
CY2017Q3	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	-10000000	USD
CY2017	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	84000000	USD
CY2017	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	18000000	USD
CY2018	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	14000000	USD
CY2017Q4	us-gaap	Reinsurance Payable ReinsurancePayable	5868000000	USD
CY2018Q4	us-gaap	Reinsurance Payable ReinsurancePayable	6437000000	USD
CY2015Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	10741000000	USD
CY2016Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	12708000000	USD
CY2017Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	14014000000	USD
CY2018Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	14689000000	USD
CY2017Q4	us-gaap	Reinsurance Recoverables Allowance ReinsuranceRecoverablesAllowance	321000000	USD
CY2018Q4	us-gaap	Reinsurance Recoverables Allowance ReinsuranceRecoverablesAllowance	323000000	USD
CY2018Q4	us-gaap	Reinsurance Recoverables Gross ReinsuranceRecoverablesGross	16316000000	USD
CY2017Q4	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	15034000000	USD
CY2018Q4	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	15993000000	USD
CY2017Q4	us-gaap	Reinsurance Recoverables On Paid Losses ReinsuranceRecoverablesOnPaidLosses	1020000000	USD
CY2017Q3	us-gaap	Revenues Revenues	8610000000	USD
CY2017Q4	us-gaap	Revenues Revenues	8015000000	USD
CY2017	us-gaap	Revenues Revenues	32243000000	USD
CY2018Q4	us-gaap	Reinsurance Recoverables On Paid Losses ReinsuranceRecoverablesOnPaidLosses	1304000000	USD
CY2017Q4	us-gaap	Reinsurance Recoverables On Paid Losses Allowance ReinsuranceRecoverablesOnPaidLossesAllowance	74000000	USD
CY2018Q4	us-gaap	Reinsurance Recoverables On Paid Losses Allowance ReinsuranceRecoverablesOnPaidLossesAllowance	72000000	USD
CY2017Q4	us-gaap	Reinsurance Recoverables On Unpaid Losses Allowance ReinsuranceRecoverablesOnUnpaidLossesAllowance	247000000	USD
CY2018Q4	us-gaap	Reinsurance Recoverables On Unpaid Losses Allowance ReinsuranceRecoverablesOnUnpaidLossesAllowance	251000000	USD
CY2018Q4	us-gaap	Reinsurance Recoverables On Unpaid Losses Gross ReinsuranceRecoverablesOnUnpaidLossesGross	14857000000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	501000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2001000000	USD
CY2016	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	2311000000	USD
CY2017	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	2348000000	USD
CY2018	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	2019000000	USD
CY2016Q4	us-gaap	Restricted Cash RestrictedCash	103000000	USD
CY2017Q4	us-gaap	Restricted Cash RestrictedCash	123000000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	93000000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	123000000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	93000000	USD
CY2017Q4	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	23454000000	USD
CY2018Q4	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	21084000000	USD
CY2017Q4	us-gaap	Restricted Investments RestrictedInvestments	23300000000	USD
CY2018Q4	us-gaap	Restricted Investments RestrictedInvestments	21000000000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	27474000000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	31700000000	USD
CY2016	us-gaap	Revenues Revenues	31469000000	USD
CY2017Q1	us-gaap	Revenues Revenues	7510000000	USD
CY2017Q2	us-gaap	Revenues Revenues	8108000000	USD
CY2018Q1	us-gaap	Revenues Revenues	7831000000	USD
CY2018Q2	us-gaap	Revenues Revenues	8510000000	USD
CY2018Q3	us-gaap	Revenues Revenues	8750000000	USD
CY2018Q4	us-gaap	Revenues Revenues	7626000000	USD
CY2018	us-gaap	Revenues Revenues	32717000000	USD
CY2016	us-gaap	Sec Schedule1218 Supplemental Information Property Casualty Insurance Underwriters Current Year Claim And Claim Adjustment Expense SecSchedule1218SupplementalInformationPropertyCasualtyInsuranceUnderwritersCurrentYearClaimAndClaimAdjustmentExpense	17256000000	USD
CY2017	us-gaap	Sec Schedule1218 Supplemental Information Property Casualty Insurance Underwriters Current Year Claim And Claim Adjustment Expense SecSchedule1218SupplementalInformationPropertyCasualtyInsuranceUnderwritersCurrentYearClaimAndClaimAdjustmentExpense	19391000000	USD
CY2018	us-gaap	Sec Schedule1218 Supplemental Information Property Casualty Insurance Underwriters Current Year Claim And Claim Adjustment Expense SecSchedule1218SupplementalInformationPropertyCasualtyInsuranceUnderwritersCurrentYearClaimAndClaimAdjustmentExpense	19048000000	USD
CY2016	us-gaap	Sec Schedule1218 Supplemental Information Property Casualty Insurance Underwriters Prior Year Claim And Claim Adjustment Expense SecSchedule1218SupplementalInformationPropertyCasualtyInsuranceUnderwritersPriorYearClaimAndClaimAdjustmentExpense	-1204000000	USD
CY2017	us-gaap	Sec Schedule1218 Supplemental Information Property Casualty Insurance Underwriters Prior Year Claim And Claim Adjustment Expense SecSchedule1218SupplementalInformationPropertyCasualtyInsuranceUnderwritersPriorYearClaimAndClaimAdjustmentExpense	-937000000	USD
CY2018	us-gaap	Sec Schedule1218 Supplemental Information Property Casualty Insurance Underwriters Prior Year Claim And Claim Adjustment Expense SecSchedule1218SupplementalInformationPropertyCasualtyInsuranceUnderwritersPriorYearClaimAndClaimAdjustmentExpense	-981000000	USD
CY2017Q4	us-gaap	Securities Held As Collateral At Fair Value SecuritiesHeldAsCollateralAtFairValue	1737000000	USD
CY2018Q4	us-gaap	Securities Held As Collateral At Fair Value SecuritiesHeldAsCollateralAtFairValue	1926000000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1408000000	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1418000000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Maximum Employee Subscription Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate	0.10
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	7405354	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	93.88
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	99000000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	111000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	71000000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	213339	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	194297	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	202900	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1929616	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	2079522	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1842690	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	21.52
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	22.97
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	29.71
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	274000000	USD
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	9853496	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	10180720	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	10433316	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	11007722	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	78.40
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	87.29
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	99.20
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	108.25
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	66.65
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	73.53
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	73.57
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	110.01
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	119.44
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	133.92
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	118.39
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	139.00
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	143.07
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	268000000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y9M12D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y0M0D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent	0.85
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1013000000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	509000000	USD
CY2018Q4	us-gaap	Shortduration Insurance Contracts Liability For Unpaid Claims And Allocated Claim Adjustment Expense Net ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet	45847000000	USD
CY2018Q4	us-gaap	Shortduration Insurance Contracts Liability For Unpaid Claims And Claim Adjustment Expense Aggregate Reconciling Items ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndClaimAdjustmentExpenseAggregateReconcilingItems	831000000	USD
CY2018Q4	us-gaap	Shortduration Insurance Contracts Liability For Unpaid Claims And Claims Adjustment Expense Accumulated Unallocated Claim Adjustment Expense ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseAccumulatedUnallocatedClaimAdjustmentExpense	1425000000	USD
CY2017Q4	us-gaap	State Insurance Department Statutory To Naic Amount Of Reconciling Item StateInsuranceDepartmentStatutoryToNAICAmountOfReconcilingItem	169000000	USD
CY2018Q4	us-gaap	State Insurance Department Statutory To Naic Amount Of Reconciling Item StateInsuranceDepartmentStatutoryToNAICAmountOfReconcilingItem	160000000	USD
CY2017	us-gaap	Statutory Accounting Practices Permitted Practice Amount StatutoryAccountingPracticesPermittedPracticeAmount	156000000	USD
CY2018	us-gaap	Statutory Accounting Practices Permitted Practice Amount StatutoryAccountingPracticesPermittedPracticeAmount	183000000	USD
CY2018Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Required StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired	25900000000	USD
CY2016	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	211492	shares
CY2017	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Amortization Of Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersAmortizationOfDeferredPolicyAcquisitionCosts	5519000000	USD
CY2018	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Amortization Of Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersAmortizationOfDeferredPolicyAcquisitionCosts	5630000000	USD
CY2016	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	17256000000	USD
CY2017	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	19391000000	USD
CY2018Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments	6100000000	USD
CY2017Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Required StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired	23900000000	USD
CY2017	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	271185	shares
CY2018	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	347116	shares
CY2016	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	136951452	shares
CY2017	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2018	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1728949	shares
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1632629	shares
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1065384	shares
CY2016	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	24000000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	34000000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	37000000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	48275000000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	51172000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	50312000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	51172000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	50312000000	USD
CY2018Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Carrying Amount SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount	100844000000	USD
CY2018Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Cost SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost	101697000000	USD
CY2018Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	100668000000	USD
CY2016	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Amortization Of Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersAmortizationOfDeferredPolicyAcquisitionCosts	5654000000	USD
CY2018	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	19048000000	USD
CY2016Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersDeferredPolicyAcquisitionCosts	3537000000	USD
CY2017Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersDeferredPolicyAcquisitionCosts	3805000000	USD
CY2018Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersDeferredPolicyAcquisitionCosts	3926000000	USD
CY2016	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Earned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersEarnedPremiums	27747000000	USD
CY2017	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Earned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersEarnedPremiums	28054000000	USD
CY2018	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Earned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersEarnedPremiums	29042000000	USD
CY2016	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Net Investment Income SupplementalInformationForPropertyCasualtyInsuranceUnderwritersNetInvestmentIncome	2656000000	USD
CY2017	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Net Investment Income SupplementalInformationForPropertyCasualtyInsuranceUnderwritersNetInvestmentIncome	2890000000	USD
CY2018	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Net Investment Income SupplementalInformationForPropertyCasualtyInsuranceUnderwritersNetInvestmentIncome	3047000000	USD
CY2016	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Paid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPaidClaimsAndClaimsAdjustmentExpense	15715000000	USD
CY2017	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Paid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPaidClaimsAndClaimsAdjustmentExpense	17448000000	USD
CY2018	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Paid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPaidClaimsAndClaimsAdjustmentExpense	18340000000	USD
CY2016	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Premiums Written SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPremiumsWritten	27074000000	USD
CY2017	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Premiums Written SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPremiumsWritten	28225000000	USD
CY2018	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Premiums Written SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPremiumsWritten	29505000000	USD
CY2016	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-1204000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	3000000	USD
CY2017	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-937000000	USD
CY2018	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-981000000	USD
CY2016Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Reserves For Unpaid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersReservesForUnpaidClaimsAndClaimsAdjustmentExpense	47832000000	USD
CY2017Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Reserves For Unpaid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersReservesForUnpaidClaimsAndClaimsAdjustmentExpense	49165000000	USD
CY2018Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Reserves For Unpaid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersReservesForUnpaidClaimsAndClaimsAdjustmentExpense	48271000000	USD
CY2016Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Unearned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersUnearnedPremiums	14779000000	USD
CY2017Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Unearned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersUnearnedPremiums	15216000000	USD
CY2018Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Unearned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersUnearnedPremiums	15532000000	USD
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	13815148	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	15950685	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	20580486	shares
CY2016	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1944000000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2618000000	USD
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	0	USD
CY2017Q4	us-gaap	Unearned Premiums UnearnedPremiums	15216000000	USD
CY2018Q4	us-gaap	Unearned Premiums UnearnedPremiums	15532000000	USD
CY2016	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	184000000	USD
CY2017	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	392000000	USD
CY2018	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-1699000000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	17000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	13000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	4000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	3000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	13000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14000000	USD
CY2015Q4	us-gaap	Value Of Business Acquired Voba ValueOfBusinessAcquiredVOBA	395000000	USD
CY2016Q4	us-gaap	Value Of Business Acquired Voba ValueOfBusinessAcquiredVOBA	355000000	USD
CY2017Q4	us-gaap	Value Of Business Acquired Voba ValueOfBusinessAcquiredVOBA	326000000	USD
CY2018Q4	us-gaap	Value Of Business Acquired Voba ValueOfBusinessAcquiredVOBA	295000000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	465949399	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	471196901	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	466802348	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	462519789	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	467145716	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	463629203	shares
CY2016	us-gaap	Withdrawal From Contract Holders Funds WithdrawalFromContractHoldersFunds	253000000	USD
CY2017	us-gaap	Withdrawal From Contract Holders Funds WithdrawalFromContractHoldersFunds	307000000	USD
CY2018	us-gaap	Withdrawal From Contract Holders Funds WithdrawalFromContractHoldersFunds	358000000	USD
CY2018	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;font-style:italic;font-weight:bold;">Premium Amortization on Purchased Callable Debt Securities</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">In March 2017, the FASB issued guidance on the amortization period for purchased callable debt securities held at a premium. The guidance requires the premium to be amortized to the earliest call date. Under current guidance, premiums generally are amortized over the contracted life of the security. We adopted this guidance on January 1, 2019 on a modified retrospective basis through a cumulative effect adjustment which decreased beginning retained earnings by approximately </font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">$15 million</font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"> pre-tax, or </font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">$11 million</font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"> after-tax. Securities held at a discount do not require an accounting change. </font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;font-style:italic;font-weight:bold;">Lease Accounting</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">In February 2016, the FASB issued accounting guidance requiring leases with lease terms of more than 12 months to recognize</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">a right of use asset and a corresponding lease liability on the balance sheets. We adopted this guidance on January 1, 2019 on a modified retrospective basis and recognized a right of use asset and a corresponding lease liability for our real estate leases of approximately </font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">$800 million</font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">. The adoption of this guidance did not have a material effect on our results of operations, financial condition or liquidity. </font></div><div style="line-height:120%;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;font-weight:bold;">Accounting guidance not yet adopted</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;font-style:italic;font-weight:bold;">Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">In June 2016, the FASB issued guidance on the accounting for credit losses of financial instruments that are measured at amortized cost, including held to maturity securities and reinsurance recoverables, by applying an approach based on the current expected credit losses (CECL). The estimate of expected credit losses should consider historical information, current information, as well as reasonable and supportable forecasts, including estimates of prepayments. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset in order to present the net carrying value at the amount expected to be collected on the financial asset on the Consolidated balance sheet.</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">The guidance also amends the current debt security other-than-temporary impairment model by requiring an estimate of the expected credit loss (ECL) only when the fair value is below the amortized cost of the asset. The length of time the fair value of an AFS debt security has been below the amortized cost will no longer impact the determination of whether a potential credit loss exists. The AFS debt security model will also require the use of a valuation allowance as compared to the current practice of writing down the asset.</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">The standard is effective for us in the first quarter of 2020 with early adoption permitted. We will be able to assess the effect of adopting this guidance on our financial condition and results of operations closer to the date of adoption.</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;font-style:italic;font-weight:bold;">Targeted Improvements to the Accounting for Long-Duration Contracts</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">In August 2018, the FASB issued guidance to improve the existing recognition, measurement, presentation, and disclosure requirements for long-duration contracts issued by an insurance entity. The amendments in this update require more frequent updating of assumptions and a standardized discount rate for the future policy benefit liability, a requirement to use the fair value measurement model for policies with market risk benefits, simplified amortization of deferred acquisition costs, and enhanced disclosures.</font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">This standard will be effective for us in the first quarter of 2021 with early adoption permitted. We are currently assessing the effect of adopting this guidance on our financial condition and results of operations. We will be better able to quantify the effect of adopting this standard as we progress in our implementation process and draw nearer to the date of adoption.</font></div></div>
CY2018	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:9px;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Chubb establishes reserves for the estimated unpaid ultimate liability for losses and loss expenses under the terms of its policies and agreements. Reserves include estimates for both claims that have been reported and for IBNR claims, and include estimates of expenses associated with processing and settling these claims. Reserves are recorded in Unpaid losses and loss expenses in the consolidated balance sheets. While we believe that our reserves for unpaid losses and loss expenses at </font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">December 31, 2018</font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"> are adequate, new information or trends may lead to future developments in incurred loss and loss expenses significantly greater or less than the reserves provided. Any such revisions could result in future changes in estimates of losses or reinsurance recoverable and would be reflected in our results of operations in the period in which the estimates are changed.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">The following table presents a reconciliation of </font><font style="font-family:News Gothic,sans-serif;font-size:10pt;">beginning and ending </font><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Unpaid losses and loss expenses:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="12" rowspan="1"></td></tr><tr><td style="width:65%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:9%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:9%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:9%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="10" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">Year Ended December 31</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">(in millions of U.S. dollars)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">2018</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Gross unpaid losses and loss expenses, beginning of year</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">63,179</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">60,540</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">37,303</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Reinsurance recoverable on unpaid losses </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(1)</sup></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">(14,014</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">(12,708</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">(10,741</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Net unpaid losses and loss expenses, beginning of year</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">49,165</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">47,832</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">26,562</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Acquisition of subsidiaries</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">21,402</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Total</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">49,165</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">47,832</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">47,964</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Net losses and loss expenses incurred in respect of losses occurring in:</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Current year</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">19,048</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">19,391</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">17,256</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Prior years </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(2)</sup></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">(981</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">(937</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">(1,204</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Total</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">18,067</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">18,454</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">16,052</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Net losses and loss expenses paid in respect of losses occurring in:</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Current year</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">7,544</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">6,575</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">5,899</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Prior years</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">10,796</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">10,873</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">9,816</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Total</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">18,340</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">17,448</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">15,715</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Foreign currency revaluation and other</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">(621</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">327</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">(469</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Net unpaid losses and loss expenses, end of year</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">48,271</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">49,165</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">47,832</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Reinsurance recoverable on unpaid losses </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(1)</sup></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">14,689</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">14,014</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">12,708</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;">Gross unpaid losses and loss expenses, end of year</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;font-weight:bold;">62,960</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">63,179</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:8.5pt;"><font style="font-family:News Gothic,sans-serif;font-size:8.5pt;">60,540</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><table cellpadding="0" cellspacing="0" style="padding-top:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7pt;padding-left:0px;"><font style="font-family:News Gothic,sans-serif;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(1)</sup></font><font style="font-family:News Gothic,sans-serif;font-size:7pt;"> </font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7pt;"><font style="font-family:News Gothic,sans-serif;font-size:7pt;">Net of provision for uncollectible reinsurance.</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7pt;padding-left:0px;"><font style="font-family:News Gothic,sans-serif;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(2)</sup> </font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7pt;"><font style="font-family:News Gothic,sans-serif;font-size:7pt;">Relates to prior period loss reserve development only and excludes prior period development related to reinstatement premiums, expense adjustments and earned premiums totaling </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">$85 million</font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">, </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">$108 million</font><font style="font-family:News Gothic,sans-serif;font-size:7pt;"> and </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">$69 million</font><font style="font-family:News Gothic,sans-serif;font-size:7pt;"> for </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">2018</font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">, </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">2017</font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">, and </font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">2016</font><font style="font-family:News Gothic,sans-serif;font-size:7pt;">, respectively.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:News Gothic,sans-serif;font-size:9pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:9.75pt;"><font style="font-family:News Gothic,sans-serif;font-size:9.75pt;"></font></div></div>

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2017 Q4 Form 10-K Financial Statement

#000089615919000005 Filed on February 28, 2019

Income Statement

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Facts In Submission

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$CB Chubb Ltd Stock $cb

2017 Q4 Form 10-K Financial Statement

#000089615919000005 Filed on February 28, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CB
Chubb Ltd Stock $cb