$CB
Chubb Ltd Stock $cb

$cb Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000089615914000003 Filed on February 28, 2014

Income Statement

Concept	2012 Q4	2012 Q3	2012 Q2
Revenue	$4.687B	$5.138B	$3.926B
YoY Change	4.64%	19.66%	-7.69%
Cost Of Revenue	$2.683B	$3.047B	$2.119B
YoY Change	17.37%	11.0%	-4.81%
Gross Profit	$2.004B	$2.091B	$1.807B
YoY Change	-8.62%	34.99%	-10.85%
Gross Profit Margin	42.76%	40.7%	46.03%
Selling, General & Admin	$553.0M	$519.0M	$514.0M
YoY Change	4.14%	-0.19%	-0.77%
% of Gross Profit	27.59%	24.82%	28.44%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$15.00M	$609.0M	$619.0M
YoY Change	87.5%	-8.97%	1.14%
% of Gross Profit	0.75%	29.12%	34.26%
Operating Expenses	$4.029B	$4.325B	$3.367B
YoY Change	12.64%	7.45%	-3.0%
Operating Profit	-$2.025B	-$2.234B	-$1.560B
YoY Change	46.32%	-9.77%	8.03%
Interest Expense	-$30.00M	$63.00M	$62.00M
YoY Change	-28.57%	1.61%	0.0%
% of Operating Profit
Other Income/Expense, Net	-$9.000M	$17.00M	-$34.00M
YoY Change	12.5%	-119.1%	183.33%
Pretax Income	$630.0M	$787.0M	$476.0M
YoY Change	-26.32%	524.6%	-33.43%
Income Tax	-$135.0M	$147.0M	$148.0M
% Of Pretax Income	-21.43%	18.68%	31.09%
Net Earnings	$765.0M	$640.0M	$328.0M
YoY Change	4.08%	-1741.03%	-44.78%
Net Earnings / Revenue	16.32%	12.46%	8.35%
Basic Earnings Per Share	$2.24	$1.88	$0.96
Diluted Earnings Per Share	$2.22	$1.86	$0.96
COMMON SHARES
Basic Shares Outstanding	339.8M shares	340.2M shares	339.8M shares
Diluted Shares Outstanding		342.9M shares	342.7M shares

Balance Sheet

Concept	2012 Q4	2012 Q3	2012 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$615.0M	$690.0M	$617.0M
Short-Term Investments
Other Short-Term Assets	$1.617B	$1.613B	$1.775B
YoY Change	4.93%	1.96%	3.74%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$1.617B	$1.613B	$1.775B
YoY Change	4.93%	1.96%	3.74%
LONG-TERM ASSETS
Property, Plant & Equipment
YoY Change
Goodwill	$4.319B
YoY Change	4.12%
Intangibles
YoY Change
Long-Term Investments	$60.72B	$60.17B	$58.02B
YoY Change	8.37%	7.7%	4.46%
Other Assets	$453.0M	$344.0M	$557.0M
YoY Change	-32.69%	-44.78%	-4.95%
Total Long-Term Assets	$90.93B	$91.90B	$88.93B
YoY Change	6.0%	5.46%	1.58%
TOTAL ASSETS
Total Short-Term Assets	$1.617B	$1.613B	$1.775B
Total Long-Term Assets	$90.93B	$91.90B	$88.93B
Total Assets	$92.55B	$93.51B	$90.70B
YoY Change	5.98%	5.4%	1.62%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.377B	$4.542B	$4.255B
YoY Change	36.2%	-1.62%	29.41%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$1.401B	$1.402B	$1.401B
YoY Change	11.99%	-10.07%	-18.02%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$10.58B	$10.66B	$10.31B
YoY Change	11.4%	4.25%	11.77%
LONG-TERM LIABILITIES
Long-Term Debt	$3.360B	$3.360B	$3.360B
YoY Change	0.0%	0.0%	0.0%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$3.360B	$3.360B	$3.360B
YoY Change	0.0%	0.0%	0.0%
TOTAL LIABILITIES
Total Short-Term Liabilities	$10.58B	$10.66B	$10.31B
Total Long-Term Liabilities	$3.360B	$3.360B	$3.360B
Total Liabilities	$65.01B	$66.55B	$64.94B
YoY Change	3.21%	2.42%	-0.31%
SHAREHOLDERS EQUITY
Retained Earnings	$10.03B	$9.268B	$8.628B
YoY Change	36.93%		27.03%
Common Stock	$9.591B	$9.759B	$9.927B
YoY Change	-4.99%		-1.69%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$159.0M	$187.0M	$206.0M
YoY Change	-51.38%		-17.6%
Treasury Stock Shares	2.511M shares	3.097M shares	3.772M shares
Shareholders Equity	$27.53B	$26.96B	$25.76B
YoY Change
Total Liabilities & Shareholders Equity	$92.55B	$93.51B	$90.70B
YoY Change	5.98%	5.4%	1.62%

Cashflow Statement

Concept	2012 Q4	2012 Q3	2012 Q2
OPERATING ACTIVITIES
Net Income	$765.0M	$640.0M	$328.0M
YoY Change	4.08%	-1741.03%	-44.78%
Depreciation, Depletion And Amortization	$15.00M	$609.0M	$619.0M
YoY Change	87.5%	-8.97%	1.14%
Cash From Operating Activities	$970.0M	$1.642B	$811.0M
YoY Change	105.51%	75.61%	-23.49%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$757.0M	-$1.432B	-$635.0M
YoY Change	49.6%	126.94%	-49.92%
Cash From Investing Activities	-$757.0M	-$1.432B	-$635.0M
YoY Change	49.6%	126.94%	-49.92%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-279.0M	-148.0M	-262.0M
YoY Change	220.69%	-59.23%	235.9%
NET CHANGE
Cash From Operating Activities	970.0M	1.642B	811.0M
Cash From Investing Activities	-757.0M	-1.432B	-635.0M
Cash From Financing Activities	-279.0M	-148.0M	-262.0M
Net Change In Cash	-66.00M	62.00M	-86.00M
YoY Change	-45.45%	-205.08%	-69.93%
FREE CASH FLOW
Cash From Operating Activities	$970.0M	$1.642B	$811.0M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	4810000000	USD
CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	5397000000	USD
CY2013Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	556000000	USD
CY2012Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	552000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1152000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	2887000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities	91000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities	40000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Heldtomaturity Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxHeldtomaturityDebtSecurities		USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5238000000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5179000000	USD
CY2011	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	152000000	USD
CY2013	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	268000000	USD
CY2012	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	220000000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	95000000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	51000000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	29000000	USD
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1031297	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	111326	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	896591	shares
CY2012Q4	us-gaap	Assets Assets	92545000000	USD
CY2013Q4	us-gaap	Assets Assets	94510000000	USD
CY2013	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	3479000000	USD
CY2012	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	3302000000	USD
CY2011	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	3349000000	USD
CY2011	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	3205000000	USD
CY2013	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	3616000000	USD
CY2012	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	3449000000	USD
CY2013Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	841000000	USD
CY2012Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	707000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	44666000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	48406000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	19122000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	4545000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	18228000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	3968000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	894000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	577000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	16200000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	15032000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	16535000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	16153000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	14139000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	13411000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	14010000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	14602000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	4285000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	4743000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	4812000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	4764000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	48406000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	44666000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1887000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	2387000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1906000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	2411000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	10051000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	10937000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	10473000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	10894000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	47306000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	49254000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	744000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	837000000	USD
CY2012Q4	us-gaap	Bank Overdrafts BankOverdrafts	0	USD
CY2013Q4	us-gaap	Bank Overdrafts BankOverdrafts		USD
CY2012	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	14960000000	USD
CY2013	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	15023000000	USD
CY2011	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	14792000000	USD
CY2011	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	5000000	USD
CY2013	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	4000000	USD
CY2012	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	11000000	USD
CY2013	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	38000000	USD
CY2010	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	91000000	USD
CY2012	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	8000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	579000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	615000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	614000000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	772000000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-36000000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-158000000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	1000000	USD
CY2012	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany		USD
CY2013	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany		USD
CY2011	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	0	USD
CY2011	us-gaap	Ceded Premiums Earned CededPremiumsEarned	5496000000	USD
CY2013	us-gaap	Ceded Premiums Earned CededPremiumsEarned	5722000000	USD
CY2012	us-gaap	Ceded Premiums Earned CededPremiumsEarned	5427000000	USD
CY2012	us-gaap	Ceded Premiums Written CededPremiumsWritten	5518000000	USD
CY2011	us-gaap	Ceded Premiums Written CededPremiumsWritten	5459000000	USD
CY2013	us-gaap	Ceded Premiums Written CededPremiumsWritten	5803000000	USD
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.02
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.85
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.38
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.06
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.22
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.91
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	28.89
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	27.04
CY2011Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	9467	shares
CY2010Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	101481	shares
CY2012Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	9467	shares
CY2013Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	9467	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	342832412	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	342832412	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	342832412	shares
CY2010Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	341094559	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	339793935	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	340321534	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	336927276	shares
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	9591000000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	8899000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1857000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2023000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3682000000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	305000000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	231000000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	485000000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-35000000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	17000000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	249000000	USD
CY2013	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	2659000000	USD
CY2011	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	2472000000	USD
CY2012	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	2446000000	USD
CY2012Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	1873000000	USD
CY2013Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	2313000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	54000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	55000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	2455000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	2396000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	616000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	453000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	1131000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	1236000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	184000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	110000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	78000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	110000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	807000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	849000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	93000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	98000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Trading Securities DeferredTaxAssetsUnrealizedLossesOnTradingSecurities	3000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Trading Securities DeferredTaxAssetsUnrealizedLossesOnTradingSecurities	43000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	56000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	64000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1887000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1775000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	351000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	379000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	795000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	982000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Unrealized Currency Transaction Gains DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains	59000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Unrealized Currency Transaction Gains DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains	94000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	586000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	210000000	USD
CY2013	us-gaap	Defined Benefit Plan Amount To Be Amortized From Accumulated Other Comprehensive Income Loss Next Fiscal Year DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYear	3000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	591000000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	531000000	USD
CY2012	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	37000000	USD
CY2013	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	26000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	129000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	19000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	23000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	22000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	23000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	22000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	566000000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	487000000	USD
CY2012	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	12000000	USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	111000000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	96000000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	99000000	USD
CY2013Q4	us-gaap	Deposit Assets DepositAssets	100000000	USD
CY2012Q4	us-gaap	Deposit Assets DepositAssets	138000000	USD
CY2012Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	283000000	USD
CY2013Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	131000000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	-41000000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	35000000	USD
CY2013	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	375000000	USD
CY2011	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-930000000	USD
CY2012	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-136000000	USD
CY2011	us-gaap	Direct Premiums Earned DirectPremiumsEarned	17534000000	USD
CY2012	us-gaap	Direct Premiums Earned DirectPremiumsEarned	17802000000	USD
CY2013	us-gaap	Direct Premiums Earned DirectPremiumsEarned	18856000000	USD
CY2013	us-gaap	Direct Premiums Written DirectPremiumsWritten	19212000000	USD
CY2012	us-gaap	Direct Premiums Written DirectPremiumsWritten	18144000000	USD
CY2011	us-gaap	Direct Premiums Written DirectPremiumsWritten	17626000000	USD
CY2012Q4	us-gaap	Due From Affiliates DueFromAffiliates		USD
CY2013Q4	us-gaap	Due From Affiliates DueFromAffiliates		USD
CY2012Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent		USD
CY2013Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent		USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.02
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.55
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.96
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.88
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.24
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.87
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.96
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.80
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.68
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.93
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.61
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.92
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.52
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.89
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.22
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.84
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.86
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.66
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.77
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.59
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.90
CY2013	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-7000000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-5000000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-27000000	USD
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	107000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y
CY2011	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	1000000	USD
CY2013	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	2000000	USD
CY2012	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	5000000	USD
CY2011	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	20000000	USD
CY2013	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	24000000	USD
CY2012	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	22000000	USD
CY2013	us-gaap	Fair Value Measurements Valuation Techniques FairValueMeasurementsValuationTechniques	Actuarial model
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	81000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	49000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	52000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	55000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	62000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	554000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	695000000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-13000000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-16000000	USD
CY2013	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	29000000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	2068000000	USD
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	2211000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	597000000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	2096000000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	4148000000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	4603000000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	4319000000	USD
CY2012	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	4000000	USD
CY2013	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	-134000000	USD
CY2012	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	44000000	USD
CY2012	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	2300000000	USD
CY2013	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	2264000000	USD
CY2011	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	2337000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	6098000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	7270000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	2267000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	1723000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	1686000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	2119000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2363000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1950000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	1870000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	2284000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	641000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	393000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	386000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	659000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	405000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	656000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	401000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	2116000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	1379000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount	1341000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount	2028000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	7633000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	6263000000	USD
CY2012Q4	us-gaap	Hybrid Instruments At Fair Value Net HybridInstrumentsAtFairValueNet	309000000	USD
CY2013Q4	us-gaap	Hybrid Instruments At Fair Value Net HybridInstrumentsAtFairValueNet	302000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2042000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2976000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4238000000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	119000000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	80000000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	32000000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	502000000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	270000000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	480000000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-2000000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	4000000	USD
CY2013	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	4000000	USD
CY2013	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	124000000	USD
CY2012	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	129000000	USD
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	323000000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	331000000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	160000000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	233000000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	23000000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	29000000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	26000000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	24000000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	27000000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	21000000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	218000000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	438000000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	460000000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-42000000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	39000000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	37000000	USD
CY2013	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-45000000	USD
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	39000000	USD
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-167000000	USD
CY2012	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	7000000	USD
CY2011	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-15000000	USD
CY2013	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-240000000	USD
CY2011Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombination	676000000	USD
CY2013Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombination	536000000	USD
CY2012Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombination	614000000	USD
CY2011	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	122000000	USD
CY2013	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	503000000	USD
CY2012	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	340000000	USD
CY2011	us-gaap	Increase Decrease In Future Policy Benefit Reserves IncreaseDecreaseInFuturePolicyBenefitReserves	78000000	USD
CY2012	us-gaap	Increase Decrease In Future Policy Benefit Reserves IncreaseDecreaseInFuturePolicyBenefitReserves	158000000	USD
CY2013	us-gaap	Increase Decrease In Future Policy Benefit Reserves IncreaseDecreaseInFuturePolicyBenefitReserves	191000000	USD
CY2013	us-gaap	Increase Decrease In Loss And Loss Adjustment Expense Reserve IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve	365000000	USD
CY2012	us-gaap	Increase Decrease In Loss And Loss Adjustment Expense Reserve IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve	-203000000	USD
CY2011	us-gaap	Increase Decrease In Loss And Loss Adjustment Expense Reserve IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve	-43000000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-335000000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-361000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-212000000	USD
CY2013	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	624000000	USD
CY2011	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	217000000	USD
CY2012	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-335000000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Reinsurance Premiums IncreaseDecreaseInPrepaidReinsurancePremiums	31000000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Reinsurance Premiums IncreaseDecreaseInPrepaidReinsurancePremiums	34000000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Reinsurance Premiums IncreaseDecreaseInPrepaidReinsurancePremiums	123000000	USD
CY2012	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	-151000000	USD
CY2011	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	216000000	USD
CY2013	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	176000000	USD
CY2013	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	402000000	USD
CY2011	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	9000000	USD
CY2012	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	522000000	USD
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2620815	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2903512	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3241085	shares
CY2013Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	106000000	USD
CY2012Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	102000000	USD
CY2010Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombination	634000000	USD
CY2012	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Additions IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAdditions	0	USD
CY2011	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Additions IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAdditions	151000000	USD
CY2013	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Additions IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAdditions	0	USD
CY2013Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Amortization Expense Next Twelve Months IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpenseNextTwelveMonths	55000000	USD
CY2013Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Amortization Expense Year Five IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpenseYearFive	35000000	USD
CY2013Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Amortization Expense Year Four IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpenseYearFour	40000000	USD
CY2013Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Amortization Expense Year Three IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpenseYearThree	45000000	USD
CY2013Q4	us-gaap	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Amortization Expense Year Two IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpenseYearTwo	50000000	USD
CY2013	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	120000000	USD
CY2011	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	95000000	USD
CY2012	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	119000000	USD
CY2013	us-gaap	Investment Income Net InvestmentIncomeNet	2144000000	USD
CY2012	us-gaap	Investment Income Net InvestmentIncomeNet	2181000000	USD
CY2011	us-gaap	Investment Income Net InvestmentIncomeNet	2242000000	USD
CY2012Q3	us-gaap	Investment Income Net InvestmentIncomeNet	533000000	USD
CY2012Q1	us-gaap	Investment Income Net InvestmentIncomeNet	544000000	USD
CY2012Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	4975000000	USD
CY2013Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	5404000000	USD
CY2011	us-gaap	Intangibles Assets Arising From Insurance Contracts Acquired In Business Combination Amortization Expense IntangiblesAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpense	108000000	USD
CY2013	us-gaap	Intangibles Assets Arising From Insurance Contracts Acquired In Business Combination Amortization Expense IntangiblesAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpense	64000000	USD
CY2012	us-gaap	Intangibles Assets Arising From Insurance Contracts Acquired In Business Combination Amortization Expense IntangiblesAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpense	82000000	USD
CY2011	us-gaap	Interest Expense InterestExpense	250000000	USD
CY2013	us-gaap	Interest Expense InterestExpense	275000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	250000000	USD
CY2013	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-275000000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-250000000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-250000000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	240000000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	234000000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	253000000	USD
CY2012Q4	us-gaap	Investment Income Net InvestmentIncomeNet	567000000	USD
CY2012Q2	us-gaap	Investment Income Net InvestmentIncomeNet	537000000	USD
CY2013Q3	us-gaap	Investment Income Net InvestmentIncomeNet	522000000	USD
CY2013Q4	us-gaap	Investment Income Net InvestmentIncomeNet	557000000	USD
CY2013Q2	us-gaap	Investment Income Net InvestmentIncomeNet	534000000	USD
CY2013Q1	us-gaap	Investment Income Net InvestmentIncomeNet	531000000	USD
CY2013Q4	us-gaap	Investments Investments	60928000000	USD
CY2012Q4	us-gaap	Investments Investments	60264000000	USD
CY2013Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	470000000	USD
CY2012Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	454000000	USD
CY2012Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	309000000	USD
CY2013Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	309000000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	128000000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	112000000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	114000000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	65014000000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	65685000000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	92545000000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	94510000000	USD
CY2012Q4	us-gaap	Liability For Asbestos And Environmental Claims Gross LiabilityForAsbestosAndEnvironmentalClaimsGross	2080000000	USD
CY2013Q4	us-gaap	Liability For Asbestos And Environmental Claims Gross LiabilityForAsbestosAndEnvironmentalClaimsGross	1839000000	USD
CY2013	us-gaap	Liability For Asbestos And Environmental Claims Gross Claims Paid LiabilityForAsbestosAndEnvironmentalClaimsGrossClaimsPaid	-485000000	USD
CY2013	us-gaap	Liability For Asbestos And Environmental Claims Gross Incurred Loss LiabilityForAsbestosAndEnvironmentalClaimsGrossIncurredLoss	244000000	USD
CY2012Q4	us-gaap	Liability For Asbestos And Environmental Claims Net LiabilityForAsbestosAndEnvironmentalClaimsNet	1106000000	USD
CY2013Q4	us-gaap	Liability For Asbestos And Environmental Claims Net LiabilityForAsbestosAndEnvironmentalClaimsNet	1051000000	USD
CY2013	us-gaap	Liability For Asbestos And Environmental Claims Net Claims Paid LiabilityForAsbestosAndEnvironmentalClaimsNetClaimsPaid	-226000000	USD
CY2013	us-gaap	Liability For Asbestos And Environmental Claims Net Incurred Loss LiabilityForAsbestosAndEnvironmentalClaimsNetIncurredLoss	171000000	USD
CY2013Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	4615000000	USD
CY2012Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	4470000000	USD
CY2011	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	401000000	USD
CY2012	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	521000000	USD
CY2013	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	515000000	USD
CY2012Q1	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	147000000	USD
CY2012Q3	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	130000000	USD
CY2012Q4	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	142000000	USD
CY2012Q2	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	102000000	USD
CY2013Q4	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	136000000	USD
CY2013Q2	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	110000000	USD
CY2013Q1	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	131000000	USD
CY2013Q3	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	138000000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	8866000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	8977000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	9219000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	3942000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	4325000000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	4209000000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	4657000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	5035000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	4894000000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	9520000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	9348000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	9653000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	9878000000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	10076000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	10132000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsPriorYears	-479000000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsPriorYears	-556000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsPriorYears	-530000000	USD
CY2011Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	25875000000	USD
CY2012Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	26547000000	USD
CY2010Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	25242000000	USD
CY2013Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	26831000000	USD
CY2013Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Ibnr Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedIBNRClaims	37443000000	USD
CY2012Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Ibnr Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedIBNRClaims	37946000000	USD
CY2010Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Ibnr Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedIBNRClaims	37391000000	USD
CY2011Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Ibnr Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedIBNRClaims	37477000000	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	3807000000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	3360000000	USD
CY2012	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	38000000	USD
CY2011	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	65000000	USD
CY2013	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	22000000	USD
CY2013	us-gaap	Net Amount At Risk By Product And Guarantee Weighted Average Attained Age1 NetAmountAtRiskByProductAndGuaranteeWeightedAverageAttainedAge1	P68Y
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	391000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-565000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-550000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4442000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3439000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3036000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4022000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3995000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3470000000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	2706000000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	1540000000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	3758000000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	765000000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	973000000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	640000000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	328000000	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	891000000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	953000000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	916000000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	998000000	USD
CY2012	us-gaap	Net Investment Income NetInvestmentIncome	2181000000	USD
CY2013	us-gaap	Net Investment Income NetInvestmentIncome	2144000000	USD
CY2011	us-gaap	Net Investment Income NetInvestmentIncome	2242000000	USD
CY2013Q4	us-gaap	Number Of Credit Risk Derivatives Held NumberOfCreditRiskDerivativesHeld	0	derivative
CY2013Q4	us-gaap	Number Of Interest Rate Derivatives Held NumberOfInterestRateDerivativesHeld	0	derivative
CY2012Q4	us-gaap	Obligation To Return Securities Received As Collateral ObligationToReturnSecuritiesReceivedAsCollateral	1795000000	USD
CY2013Q4	us-gaap	Obligation To Return Securities Received As Collateral ObligationToReturnSecuritiesReceivedAsCollateral	1633000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	534000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	106000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	49000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	70000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	86000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	99000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	124000000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	2871000000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	3330000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1197000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-2206000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	476000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-339000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-5000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	116000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	317000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	976000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1735000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-8000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	35000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	234000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	173000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	105000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	159000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	221000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-471000000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	646000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1762000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1350000000	USD
CY2012Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	656000000	USD
CY2013Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	801000000	USD
CY2012Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	2465000000	USD
CY2013Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	2671000000	USD
CY2012Q4	us-gaap	Other Liabilities OtherLiabilities	10664000000	USD
CY2013Q4	us-gaap	Other Liabilities OtherLiabilities	10071000000	USD
CY2012Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	2716000000	USD
CY2013Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	2976000000	USD
CY2012	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	-19000000	USD
CY2013	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	-27000000	USD
CY2011	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	-23000000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6000000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-15000000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-81000000	USD
CY2013Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	1763000000	USD
CY2012Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	2228000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	3000000	USD
CY2011	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	8000000	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	12000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	9000000	USD
CY2011	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	12000000	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	8000000	USD
CY2013Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	37000000	USD
CY2011Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	74000000	USD
CY2010Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	137000000	USD
CY2012Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	43000000	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	51000000	USD
CY2011	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	83000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	18000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	-15000000	USD
CY2012	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
CY2012	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	37000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	22000000	USD
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	50000000	USD
CY2012	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	0	USD
CY2013	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates		USD
CY2011	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	0	USD
CY2012	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	281000000	USD
CY2013	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	471000000	USD
CY2011	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	67000000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	555000000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	393000000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	482000000	USD
CY2012	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-117000000	USD
CY2013	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-524000000	USD
CY2011	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	300000000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	287000000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	11000000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	195000000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	815000000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	459000000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	517000000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	21340000000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	23523000000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	23572000000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	135000000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	309000000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	264000000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	606000000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	98000000	USD
CY2013	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	977000000	USD
CY2013	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	447000000	USD
CY2012	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	388000000	USD
CY2011	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	340000000	USD
CY2012Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	44000000	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	25000000	USD
CY2012	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	9653000000	USD
CY2013	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	9348000000	USD
CY2011	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	9520000000	USD
CY2012Q4	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	2683000000	USD
CY2012Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	3047000000	USD
CY2012Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	2119000000	USD
CY2012Q1	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1804000000	USD
CY2013Q1	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1926000000	USD
CY2013Q4	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	2517000000	USD
CY2013Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	2250000000	USD
CY2013Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	2655000000	USD
CY2012	us-gaap	Premiums Earned Net PremiumsEarnedNet	15677000000	USD
CY2011	us-gaap	Premiums Earned Net PremiumsEarnedNet	15387000000	USD
CY2013	us-gaap	Premiums Earned Net PremiumsEarnedNet	16613000000	USD
CY2012Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	3783000000	USD
CY2012Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	3381000000	USD
CY2012Q4	us-gaap	Premiums Earned Net PremiumsEarnedNet	3848000000	USD
CY2012Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	4665000000	USD
CY2013Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	3573000000	USD
CY2013Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	4610000000	USD
CY2013Q4	us-gaap	Premiums Earned Net PremiumsEarnedNet	4363000000	USD
CY2013Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	4067000000	USD
CY2011	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.22
CY2013	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.21
CY2012	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.21
CY2013Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	5026000000	USD
CY2012Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	4147000000	USD
CY2013	us-gaap	Premiums Written Net PremiumsWrittenNet	17025000000	USD
CY2012	us-gaap	Premiums Written Net PremiumsWrittenNet	16075000000	USD
CY2011	us-gaap	Premiums Written Net PremiumsWrittenNet	15372000000	USD
CY2012Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	1617000000	USD
CY2013Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	1675000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	947000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt		USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt		USD
CY2012	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	126000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	135000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	139000000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	3720000000	USD
CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	5523000000	USD
CY2013	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	6941000000	USD
CY2013	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1488000000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1279000000	USD
CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1451000000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	113000000	USD
CY2012	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts		USD
CY2013	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts		USD
CY2011	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	0	USD
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	17176000000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	14321000000	USD
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	10355000000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	119000000	USD
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	142000000	USD
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	376000000	USD
CY2012	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	2933000000	USD
CY2013	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	2572000000	USD
CY2011	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	5238000000	USD
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	85000000	USD
CY2012	us-gaap	Realized Gain Loss On Marketable Securities And Cost Method Investments Excluding Other Than Temporary Impairments And Other Investments RealizedGainLossOnMarketableSecuritiesAndCostMethodInvestmentsExcludingOtherThanTemporaryImpairmentsAndOtherInvestments	115000000	USD
CY2013	us-gaap	Realized Gain Loss On Marketable Securities And Cost Method Investments Excluding Other Than Temporary Impairments And Other Investments RealizedGainLossOnMarketableSecuritiesAndCostMethodInvestmentsExcludingOtherThanTemporaryImpairmentsAndOtherInvestments	526000000	USD
CY2011	us-gaap	Realized Gain Loss On Marketable Securities And Cost Method Investments Excluding Other Than Temporary Impairments And Other Investments RealizedGainLossOnMarketableSecuritiesAndCostMethodInvestmentsExcludingOtherThanTemporaryImpairmentsAndOtherInvestments	-745000000	USD
CY2012	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	32000000	USD
CY2013	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	27000000	USD
CY2012Q4	us-gaap	Reinsurance Payable ReinsurancePayable	3472000000	USD
CY2013Q4	us-gaap	Reinsurance Payable ReinsurancePayable	3628000000	USD
CY2013Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	577000000	USD
CY2012Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	27000000	USD
CY2013Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	26000000	USD
CY2012	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	2783000000	USD
CY2011	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	5288000000	USD
CY2013	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	2572000000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	139000000	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	162000000	USD
CY2012Q4	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	16717000000	USD
CY2013Q4	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	16445000000	USD
CY2013Q4	us-gaap	Restricted Investments RestrictedInvestments	16300000000	USD
CY2012Q4	us-gaap	Restricted Investments RestrictedInvestments	16600000000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	13791000000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	10033000000	USD
CY2013	us-gaap	Revenues Revenues	19261000000	USD
CY2011	us-gaap	Revenues Revenues	16834000000	USD
CY2012	us-gaap	Revenues Revenues	17936000000	USD
CY2012Q2	us-gaap	Revenues Revenues	3926000000	USD
CY2012Q1	us-gaap	Revenues Revenues	4185000000	USD
CY2012Q4	us-gaap	Revenues Revenues	4687000000	USD
CY2012Q3	us-gaap	Revenues Revenues	5138000000	USD
CY2013Q1	us-gaap	Revenues Revenues	4310000000	USD
CY2013Q4	us-gaap	Revenues Revenues	5074000000	USD
CY2013Q3	us-gaap	Revenues Revenues	5172000000	USD
CY2013Q2	us-gaap	Revenues Revenues	4705000000	USD
CY2013Q4	us-gaap	Securities For Reverse Repurchase Agreements SecuritiesForReverseRepurchaseAgreements	1435000000	USD
CY2012Q4	us-gaap	Securities For Reverse Repurchase Agreements SecuritiesForReverseRepurchaseAgreements	1401000000	USD
CY2012Q4	us-gaap	Securities Held As Collateral At Fair Value SecuritiesHeldAsCollateralAtFairValue	1791000000	USD
CY2013Q4	us-gaap	Securities Held As Collateral At Fair Value SecuritiesHeldAsCollateralAtFairValue	1632000000	USD
CY2013Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1401000000	USD
CY2012Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1401000000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	6330456	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	53.52
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	70000000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	63000000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	78000000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	115195	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	271972	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	190082	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1821063	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1649824	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1462103	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	15.58
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	14.67
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	17.29
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	396000000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	9449659	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	11942893	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	10579507	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	9496856	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	61.84
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	55.03
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	49.78
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	46.80
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	48.17
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	42.50
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	44.45
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	61.87
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	72.50
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	51.33
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	85.41
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	62.68
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	73.36
CY2013Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	317000000	USD
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y9M12D
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y6M6D
CY2013Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1901000000	USD
CY2012Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1401000000	USD
CY2013Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	22000000	USD
CY2012Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	18000000	USD
CY2013Q4	us-gaap	State Insurance Department Statutory To Naic Amount Of Reconciling Item StateInsuranceDepartmentStatutoryToNAICAmountOfReconcilingItem	158000000	USD
CY2012Q4	us-gaap	State Insurance Department Statutory To Naic Amount Of Reconciling Item StateInsuranceDepartmentStatutoryToNAICAmountOfReconcilingItem	161000000	USD
CY2013Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments	3800000000	USD
CY2012Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Balance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance	24400000000	USD
CY2013Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Balance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance	25600000000	USD
CY2012Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Required StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired	14300000000	USD
CY2013Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Required StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired	14500000000	USD
CY2013	us-gaap	Statutory Accounting Practices Statutory Net Income Amount StatutoryAccountingPracticesStatutoryNetIncomeAmount	3700000000	USD
CY2011	us-gaap	Statutory Accounting Practices Statutory Net Income Amount StatutoryAccountingPracticesStatutoryNetIncomeAmount	1900000000	USD
CY2012	us-gaap	Statutory Accounting Practices Statutory Net Income Amount StatutoryAccountingPracticesStatutoryNetIncomeAmount	2900000000	USD
CY2012	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	198244	shares
CY2011	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	205812	shares
CY2013	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	175437	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2401869	shares
CY2013	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1658671	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2741238	shares
CY2013	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	14000000	USD
CY2012	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	13000000	USD
CY2011	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	12000000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	27531000000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	28825000000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	24332000000	USD
CY2013Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Carrying Amount SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount	60928000000	USD
CY2013Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Cost SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost	59779000000	USD
CY2013Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	61093000000	USD
CY2012	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Amortization Of Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersAmortizationOfDeferredPolicyAcquisitionCosts	2254000000	USD
CY2011	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Amortization Of Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersAmortizationOfDeferredPolicyAcquisitionCosts	2291000000	USD
CY2013	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Amortization Of Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersAmortizationOfDeferredPolicyAcquisitionCosts	2447000000	USD
CY2012	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	10132000000	USD
CY2011	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	10076000000	USD
CY2013	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	9878000000	USD
CY2012Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersDeferredPolicyAcquisitionCosts	1757000000	USD
CY2013Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersDeferredPolicyAcquisitionCosts	1865000000	USD
CY2011Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Deferred Policy Acquisition Costs SupplementalInformationForPropertyCasualtyInsuranceUnderwritersDeferredPolicyAcquisitionCosts	1512000000	USD
CY2013	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Earned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersEarnedPremiums	15708000000	USD
CY2012	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Earned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersEarnedPremiums	14764000000	USD
CY2011	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Earned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersEarnedPremiums	14523000000	USD
CY2013	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Net Investment Income SupplementalInformationForPropertyCasualtyInsuranceUnderwritersNetInvestmentIncome	1977000000	USD
CY2012	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Net Investment Income SupplementalInformationForPropertyCasualtyInsuranceUnderwritersNetInvestmentIncome	2018000000	USD
CY2011	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Net Investment Income SupplementalInformationForPropertyCasualtyInsuranceUnderwritersNetInvestmentIncome	2107000000	USD
CY2011	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Paid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPaidClaimsAndClaimsAdjustmentExpense	8866000000	USD
CY2012	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Paid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPaidClaimsAndClaimsAdjustmentExpense	9219000000	USD
CY2013	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Paid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPaidClaimsAndClaimsAdjustmentExpense	8977000000	USD
CY2013	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Premiums Written SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPremiumsWritten	16069000000	USD
CY2012	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Premiums Written SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPremiumsWritten	15107000000	USD
CY2011	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Premiums Written SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPremiumsWritten	14455000000	USD
CY2013	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-530000000	USD
CY2012	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-479000000	USD
CY2011	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-556000000	USD
CY2013Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Reserves For Unpaid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersReservesForUnpaidClaimsAndClaimsAdjustmentExpense	26831000000	USD
CY2011Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Reserves For Unpaid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersReservesForUnpaidClaimsAndClaimsAdjustmentExpense	25875000000	USD
CY2012Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Reserves For Unpaid Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersReservesForUnpaidClaimsAndClaimsAdjustmentExpense	26547000000	USD
CY2013Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Unearned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersUnearnedPremiums	7539000000	USD
CY2012Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Unearned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersUnearnedPremiums	6864000000	USD
CY2011Q4	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Unearned Premiums SupplementalInformationForPropertyCasualtyInsuranceUnderwritersUnearnedPremiums	6334000000	USD
CY2012Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	8000000	USD
CY2013Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	7000000	USD
CY2012Q4	us-gaap	Trading Securities Equity TradingSecuritiesEquity	23000000	USD
CY2013Q4	us-gaap	Trading Securities Equity TradingSecuritiesEquity	23000000	USD
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2510878	shares
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	3038477	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	5905136	shares
CY2014Q1	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	3437082	shares
CY2012	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	100000	shares
CY2011	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	2058860	shares
CY2013	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	3266531	shares
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	159000000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	255000000	USD
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	132000000	USD
CY2014Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	326000000	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	7000000	USD
CY2013	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	290000000	USD
CY2013Q4	us-gaap	Unearned Premiums UnearnedPremiums	7539000000	USD
CY2012Q4	us-gaap	Unearned Premiums UnearnedPremiums	6864000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	134000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	26000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	27000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	16000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	11000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	12000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-1000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-8000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	3000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	19000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	111000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	5000000	USD
CY2012Q4	us-gaap	Value Of Business Acquired Voba ValueOfBusinessAcquiredVOBA	614000000	USD
CY2013Q4	us-gaap	Value Of Business Acquired Voba ValueOfBusinessAcquiredVOBA	536000000	USD
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	344147575	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	340780224	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	342746950	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	339843438	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	338159409	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	340906490	shares
CY2012	ace	Advances To From Affiliates Financing Activities AdvancesToFromAffiliatesFinancingActivities		USD
CY2013	ace	Advances To From Affiliates Financing Activities AdvancesToFromAffiliatesFinancingActivities		USD
CY2011	ace	Advances To From Affiliates Financing Activities AdvancesToFromAffiliatesFinancingActivities	0	USD
CY2012Q4	ace	Allowance For Reinsurance Recoverable AllowanceForReinsuranceRecoverable	439000000	USD
CY2013Q4	ace	Allowance For Reinsurance Recoverable AllowanceForReinsuranceRecoverable	390000000	USD
CY2013Q4	ace	Allowance For Reinsurance Recoverable Percentage AllowanceForReinsuranceRecoverablePercentage	0.034
CY2011	ace	Amortization Expense For Deferred Marketing Costs AmortizationExpenseForDeferredMarketingCosts	128000000	USD
CY2013	ace	Amortization Expense For Deferred Marketing Costs AmortizationExpenseForDeferredMarketingCosts	128000000	USD
CY2012	ace	Amortization Expense For Deferred Marketing Costs AmortizationExpenseForDeferredMarketingCosts	119000000	USD
CY2013Q4	ace	Amount Of Deferred Marketing Costs Reported In Deferred Policy Acquisition Costs AmountOfDeferredMarketingCostsReportedInDeferredPolicyAcquisitionCosts	307000000	USD
CY2012Q4	ace	Amount Of Deferred Marketing Costs Reported In Deferred Policy Acquisition Costs AmountOfDeferredMarketingCostsReportedInDeferredPolicyAcquisitionCosts	274000000	USD
CY2012Q4	ace	Available For Sale Securities Excluding Mortgage Backed Securities Amortized Cost AvailableForSaleSecuritiesExcludingMortgageBackedSecuritiesAmortizedCost	34615000000	USD
CY2013Q4	ace	Available For Sale Securities Excluding Mortgage Backed Securities Amortized Cost AvailableForSaleSecuritiesExcludingMortgageBackedSecuritiesAmortizedCost	37469000000	USD
CY2013Q4	ace	Available For Sale Securities Excluding Mortgage Backed Securities Fair Value AvailableForSaleSecuritiesExcludingMortgageBackedSecuritiesFairValue	38360000000	USD
CY2012Q4	ace	Available For Sale Securities Excluding Mortgage Backed Securities Fair Value AvailableForSaleSecuritiesExcludingMortgageBackedSecuritiesFairValue	36833000000	USD
CY2013Q4	ace	Availableforsale Securities Continuous Unrealized Loss Position12 Monthsor Longer Aggregate Loss2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsorLongerAggregateLoss2	63000000	USD
CY2012Q4	ace	Availableforsale Securities Continuous Unrealized Loss Position12 Monthsor Longer Aggregate Loss2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsorLongerAggregateLoss2	50000000	USD
CY2013Q4	ace	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Loss2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLoss2	715000000	USD
CY2012Q4	ace	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Loss2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLoss2	98000000	USD
CY2013Q4	ace	Availableforsale Securities Continuous Unrealized Loss Position Lessthan12 Months Aggregate Loss2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss2	652000000	USD
CY2012Q4	ace	Availableforsale Securities Continuous Unrealized Loss Position Lessthan12 Months Aggregate Loss2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss2	48000000	USD
CY2012Q4	ace	Availableforsale Securities Gross Unrealized Gains2 AvailableforsaleSecuritiesGrossUnrealizedGains2	2725000000	USD
CY2013Q4	ace	Availableforsale Securities Gross Unrealized Gains2 AvailableforsaleSecuritiesGrossUnrealizedGains2	1465000000	USD
CY2012Q4	ace	Availableforsale Securities Gross Unrealized Loss2 AvailableforsaleSecuritiesGrossUnrealizedLoss2	85000000	USD
CY2013Q4	ace	Availableforsale Securities Gross Unrealized Loss2 AvailableforsaleSecuritiesGrossUnrealizedLoss2	617000000	USD
CY2013	ace	Borrowers Collateral Percent Of Fair Value Loaned Securities BorrowersCollateralPercentOfFairValueLoanedSecurities	1.02
CY2012	ace	Cash Flows From Investing Activities Other CashFlowsFromInvestingActivitiesOther	555000000	USD
CY2013	ace	Cash Flows From Investing Activities Other CashFlowsFromInvestingActivitiesOther	393000000	USD
CY2011	ace	Cash Flows From Investing Activities Other CashFlowsFromInvestingActivitiesOther	482000000	USD
CY2013Q4	ace	Century Aggregate Reinsurance Balances Ceded By Active Companies CenturyAggregateReinsuranceBalancesCededByActiveCompanies	929000000	USD
CY2012Q4	ace	Century Aggregate Reinsurance Balances Ceded By Active Companies CenturyAggregateReinsuranceBalancesCededByActiveCompanies	958000000	USD
CY2004Q4	ace	Century Contribution Surplus Note CenturyContributionSurplusNote	100000000	USD
CY2012Q4	ace	Century Gross Reserves CenturyGrossReserves	2100000000	USD
CY2013Q4	ace	Century Gross Reserves CenturyGrossReserves	2300000000	USD
CY2013Q4	ace	Century Statutory Basis Losses Cede To Xol CenturyStatutoryBasisLossesCedeToXOL	232000000	USD
CY2013Q4	ace	Century Statutory Surplus CenturyStatutorySurplus	25000000	USD
CY2013Q4	ace	Century Xol Reinsurance Coverage CenturyXOLReinsuranceCoverage	800000000	USD
CY2012	ace	Change In Net Unrealized Appreciation Depreciation ChangeInNetUnrealizedAppreciationDepreciation	918000000	USD
CY2013	ace	Change In Net Unrealized Appreciation Depreciation ChangeInNetUnrealizedAppreciationDepreciation	-1459000000	USD
CY2011	ace	Change In Net Unrealized Appreciation Depreciation ChangeInNetUnrealizedAppreciationDepreciation	316000000	USD
CY2012	ace	Change In Net Unrealized Appreciation Depreciation Equities ChangeInNetUnrealizedAppreciationDepreciationEquities	61000000	USD
CY2013	ace	Change In Net Unrealized Appreciation Depreciation Equities ChangeInNetUnrealizedAppreciationDepreciationEquities	-41000000	USD
CY2011	ace	Change In Net Unrealized Appreciation Depreciation Equities ChangeInNetUnrealizedAppreciationDepreciationEquities	-47000000	USD
CY2013	ace	Change In Net Unrealized Appreciation Depreciation Fixed Maturities Available For Sale ChangeInNetUnrealizedAppreciationDepreciationFixedMaturitiesAvailableForSale	-1798000000	USD
CY2011	ace	Change In Net Unrealized Appreciation Depreciation Fixed Maturities Available For Sale ChangeInNetUnrealizedAppreciationDepreciationFixedMaturitiesAvailableForSale	569000000	USD
CY2012	ace	Change In Net Unrealized Appreciation Depreciation Fixed Maturities Available For Sale ChangeInNetUnrealizedAppreciationDepreciationFixedMaturitiesAvailableForSale	1099000000	USD
CY2013	ace	Change In Net Unrealized Appreciation Depreciation Fixed Maturities Held To Maturity ChangeInNetUnrealizedAppreciationDepreciationFixedMaturitiesHeldToMaturity	-82000000	USD
CY2011	ace	Change In Net Unrealized Appreciation Depreciation Fixed Maturities Held To Maturity ChangeInNetUnrealizedAppreciationDepreciationFixedMaturitiesHeldToMaturity	-89000000	USD
CY2012	ace	Change In Net Unrealized Appreciation Depreciation Fixed Maturities Held To Maturity ChangeInNetUnrealizedAppreciationDepreciationFixedMaturitiesHeldToMaturity	-94000000	USD
CY2013	ace	Change In Net Unrealized Appreciation Depreciation Income Tax Expense Benefit ChangeInNetUnrealizedAppreciationDepreciationIncomeTaxExpenseBenefit	408000000	USD
CY2011	ace	Change In Net Unrealized Appreciation Depreciation Income Tax Expense Benefit ChangeInNetUnrealizedAppreciationDepreciationIncomeTaxExpenseBenefit	-157000000	USD
CY2012	ace	Change In Net Unrealized Appreciation Depreciation Income Tax Expense Benefit ChangeInNetUnrealizedAppreciationDepreciationIncomeTaxExpenseBenefit	-198000000	USD
CY2012	ace	Change In Net Unrealized Appreciation Depreciation Other Investments ChangeInNetUnrealizedAppreciationDepreciationOtherInvestments	50000000	USD
CY2013	ace	Change In Net Unrealized Appreciation Depreciation Other Investments ChangeInNetUnrealizedAppreciationDepreciationOtherInvestments	54000000	USD
CY2011	ace	Change In Net Unrealized Appreciation Depreciation Other Investments ChangeInNetUnrealizedAppreciationDepreciationOtherInvestments	40000000	USD
CY2013	ace	Change In Unearned Premium Net ChangeInUnearnedPremiumNet	412000000	USD
CY2012	ace	Change In Unearned Premium Net ChangeInUnearnedPremiumNet	398000000	USD
CY2011	ace	Change In Unearned Premium Net ChangeInUnearnedPremiumNet	-15000000	USD
CY2013	ace	Common Shares Stock Issued During Period Shares Stock Options Exercised CommonSharesStockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2012	ace	Common Shares Stock Issued During Period Shares Stock Options Exercised CommonSharesStockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2011	ace	Common Shares Stock Issued During Period Shares Stock Options Exercised CommonSharesStockIssuedDuringPeriodSharesStockOptionsExercised	1737853	shares
CY2013	ace	Common Stock Dividend Rate Per Dollar Amount CommonStockDividendRatePerDollarAmount	0.51
CY2013Q4	ace	Common Stock Maximum Ownership Percentage For Voting CommonStockMaximumOwnershipPercentageForVoting	0.1
CY2012Q4	ace	Common Stock Par Value Distribution CommonStockParValueDistribution	1.38
CY2011Q4	ace	Common Stock Shares Redeemed From Employee Trust Shares CommonStockSharesRedeemedFromEmployeeTrustShares	92014	shares
CY2012Q4	ace	Common Stock Shares Redeemed From Employee Trust Shares CommonStockSharesRedeemedFromEmployeeTrustShares	0	shares
CY2013Q4	ace	Common Stock Shares Redeemed From Employee Trust Shares CommonStockSharesRedeemedFromEmployeeTrustShares	0	shares
CY2013Q4	ace	Common Stock Votes Per Share CommonStockVotesPerShare	1
CY2013	ace	Company Assumed Recovery Rate CompanyAssumedRecoveryRate	0.32
CY2011Q4	ace	Concentration Risk Percentage Aon ConcentrationRiskPercentageAon	0.10
CY2013Q4	ace	Concentration Risk Percentage Marsh ConcentrationRiskPercentageMarsh	0.11
CY2011Q4	ace	Concentration Risk Percentage Marsh ConcentrationRiskPercentageMarsh	0.12
CY2012Q4	ace	Concentration Risk Percentage Marsh ConcentrationRiskPercentageMarsh	0.11
CY2012Q4	ace	Contract Holder Deposit Funds ContractHolderDepositFunds	548000000	USD
CY2013Q4	ace	Contract Holder Deposit Funds ContractHolderDepositFunds	699000000	USD
CY2011	ace	Corporate Securities Credit Losses Recognized In Net Income CorporateSecuritiesCreditLossesRecognizedInNetIncome	9000000	USD
CY2013	ace	Corporate Securities Credit Losses Recognized In Net Income CorporateSecuritiesCreditLossesRecognizedInNetIncome	11000000	USD
CY2012	ace	Corporate Securities Credit Losses Recognized In Net Income CorporateSecuritiesCreditLossesRecognizedInNetIncome	14000000	USD
CY2013	ace	Deferred Marketing Costs Amortization Period DeferredMarketingCostsAmortizationPeriod	P10Y
CY2012Q4	ace	Deferred Tax Liabilities Deferred Policy Acqusition Costs DeferredTaxLiabilitiesDeferredPolicyAcqusitionCosts	68000000	USD
CY2013Q4	ace	Deferred Tax Liabilities Deferred Policy Acqusition Costs DeferredTaxLiabilitiesDeferredPolicyAcqusitionCosts	138000000	USD
CY2013	ace	Defined Benefit Plans Expected Contribution On Plan Assets DefinedBenefitPlansExpectedContributionOnPlanAssets	3000000	USD
CY2012Q4	ace	Derivative Instruments Notional Value Payment Provision DerivativeInstrumentsNotionalValuePaymentProvision	0	USD
CY2013Q4	ace	Derivative Instruments Notional Value Payment Provision DerivativeInstrumentsNotionalValuePaymentProvision	6287000000	USD
CY2013Q4	ace	Dividend Retention Fund Balance DividendRetentionFundBalance	50000000	USD
CY2013Q4	ace	Dividend Retention Fund Minimum Balance DividendRetentionFundMinimumBalance	50000000	USD
CY2013	ace	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries		USD
CY2012	ace	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries		USD
CY2011	ace	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries		USD
CY2012	ace	Equity Securities Gross Realized Gains Excluding Other Than Temporary Impairments EquitySecuritiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	11000000	USD
CY2013	ace	Equity Securities Gross Realized Gains Excluding Other Than Temporary Impairments EquitySecuritiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	21000000	USD
CY2011	ace	Equity Securities Gross Realized Gains Excluding Other Than Temporary Impairments EquitySecuritiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	15000000	USD
CY2011	ace	Equity Securities Gross Realized Losses Excluding Other Than Temporary Impairments EquitySecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	5000000	USD
CY2012	ace	Equity Securities Gross Realized Losses Excluding Other Than Temporary Impairments EquitySecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	2000000	USD
CY2013	ace	Equity Securities Gross Realized Losses Excluding Other Than Temporary Impairments EquitySecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	4000000	USD
CY2013Q4	ace	Equity Securities Gross Unrealized Appreciation EquitySecuritiesGrossUnrealizedAppreciation	63000000	USD
CY2012Q4	ace	Equity Securities Gross Unrealized Appreciation EquitySecuritiesGrossUnrealizedAppreciation	41000000	USD
CY2013Q4	ace	Equity Securities Gross Unrealized Depreciation EquitySecuritiesGrossUnrealizedDepreciation	67000000	USD
CY2012Q4	ace	Equity Securities Gross Unrealized Depreciation EquitySecuritiesGrossUnrealizedDepreciation	4000000	USD
CY2013Q4	ace	Equity Securities In Unrealized Loss Position Number EquitySecuritiesInUnrealizedLossPositionNumber	71	Security
CY2013Q4	ace	Equity Securities Largest Single Unrealized Loss EquitySecuritiesLargestSingleUnrealizedLoss	-58000000	USD
CY2013	ace	Equity Securities Net Realized Gains Losses Total EquitySecuritiesNetRealizedGainsLossesTotal	15000000	USD
CY2012	ace	Equity Securities Net Realized Gains Losses Total EquitySecuritiesNetRealizedGainsLossesTotal	4000000	USD
CY2011	ace	Equity Securities Net Realized Gains Losses Total EquitySecuritiesNetRealizedGainsLossesTotal	9000000	USD
CY2013Q4	ace	Equity Securities Total Number EquitySecuritiesTotalNumber	185	Security
CY2013	ace	Fair Value Adjustments On Insurance Derivative Gains Losses FairValueAdjustmentsOnInsuranceDerivativeGainsLosses	878000000	USD
CY2012	ace	Fair Value Adjustments On Insurance Derivative Gains Losses FairValueAdjustmentsOnInsuranceDerivativeGainsLosses	171000000	USD
CY2011	ace	Fair Value Adjustments On Insurance Derivative Gains Losses FairValueAdjustmentsOnInsuranceDerivativeGainsLosses	-779000000	USD
CY2013	ace	Fair Value Assets Level1 To Level2 Transfers Amounts FairValueAssetsLevel1ToLevel2TransfersAmounts	19000000	USD
CY2012	ace	Fair Value Assets Level1 To Level2 Transfers Amounts FairValueAssetsLevel1ToLevel2TransfersAmounts	40000000	USD
CY2012	ace	Fair Value Assets Level2 To Level1 Transfers Amounts FairValueAssetsLevel2ToLevel1TransfersAmounts	15000000	USD
CY2013Q4	ace	Finitelivedintangibleassetsamortizationexpensetotal Finitelivedintangibleassetsamortizationexpensetotal	299000000	USD
CY2012	ace	Fixed Maturities Gross Realized Gains Excluding Other Than Temporary Impairments FixedMaturitiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	388000000	USD
CY2013	ace	Fixed Maturities Gross Realized Gains Excluding Other Than Temporary Impairments FixedMaturitiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	237000000	USD
CY2011	ace	Fixed Maturities Gross Realized Gains Excluding Other Than Temporary Impairments FixedMaturitiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	410000000	USD
CY2013	ace	Fixed Maturities Gross Realized Losses Excluding Other Than Temporary Impairments FixedMaturitiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	129000000	USD
CY2012	ace	Fixed Maturities Gross Realized Losses Excluding Other Than Temporary Impairments FixedMaturitiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	133000000	USD
CY2011	ace	Fixed Maturities Gross Realized Losses Excluding Other Than Temporary Impairments FixedMaturitiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	200000000	USD
CY2013Q4	ace	Fixed Maturities In Unrealized Loss Position Number FixedMaturitiesInUnrealizedLossPositionNumber	6161	Security
CY2013Q4	ace	Fixed Maturities Largest Single Unrealized Loss FixedMaturitiesLargestSingleUnrealizedLoss	-6000000	USD
CY2013	ace	Fixed Maturities Net Realized Gains Losses Total FixedMaturitiesNetRealizedGainsLossesTotal	90000000	USD
CY2011	ace	Fixed Maturities Net Realized Gains Losses Total FixedMaturitiesNetRealizedGainsLossesTotal	164000000	USD
CY2012	ace	Fixed Maturities Net Realized Gains Losses Total FixedMaturitiesNetRealizedGainsLossesTotal	230000000	USD
CY2012	ace	Fixed Maturities Other Than Temporary Impairments Gross FixedMaturitiesOtherThanTemporaryImpairmentsGross	-26000000	USD
CY2013	ace	Fixed Maturities Other Than Temporary Impairments Gross FixedMaturitiesOtherThanTemporaryImpairmentsGross	-18000000	USD
CY2011	ace	Fixed Maturities Other Than Temporary Impairments Gross FixedMaturitiesOtherThanTemporaryImpairmentsGross	-61000000	USD
CY2012	ace	Fixed Maturities Other Than Temporary Impairments In Other Comprehensive Income Pre Tax FixedMaturitiesOtherThanTemporaryImpairmentsInOtherComprehensiveIncomePreTax	1000000	USD
CY2011	ace	Fixed Maturities Other Than Temporary Impairments In Other Comprehensive Income Pre Tax FixedMaturitiesOtherThanTemporaryImpairmentsInOtherComprehensiveIncomePreTax	15000000	USD
CY2013	ace	Fixed Maturities Other Than Temporary Impairments In Other Comprehensive Income Pre Tax FixedMaturitiesOtherThanTemporaryImpairmentsInOtherComprehensiveIncomePreTax	0	USD
CY2011	ace	Fixed Maturities Other Than Temporary Impairments Net FixedMaturitiesOtherThanTemporaryImpairmentsNet	-46000000	USD
CY2013	ace	Fixed Maturities Other Than Temporary Impairments Net FixedMaturitiesOtherThanTemporaryImpairmentsNet	-18000000	USD
CY2012	ace	Fixed Maturities Other Than Temporary Impairments Net FixedMaturitiesOtherThanTemporaryImpairmentsNet	-25000000	USD
CY2013Q4	ace	Fixed Maturities Total Number FixedMaturitiesTotalNumber	25062	Security
CY2013	ace	Gains Losses On Fair Value Changes In Separate Account Assets GainsLossesOnFairValueChangesInSeparateAccountAssets	16000000	USD
CY2012	ace	Gains Losses On Fair Value Changes In Separate Account Assets GainsLossesOnFairValueChangesInSeparateAccountAssets	29000000	USD
CY2011	ace	Gains Losses On Fair Value Changes In Separate Account Assets GainsLossesOnFairValueChangesInSeparateAccountAssets	-36000000	USD
CY2013	ace	Goodwill Impairment Testing Qualitative Assessment Percentage Probability GoodwillImpairmentTestingQualitativeAssessmentPercentageProbability	0.5
CY2013Q4	ace	Gross Liability For Amount Due To Claimants GrossLiabilityForAmountDueToClaimants	631000000	USD
CY2013Q4	ace	Guaranteed Living Benefits Adjustment Factor For Valuable Guarantees Lower Range GuaranteedLivingBenefitsAdjustmentFactorForValuableGuaranteesLowerRange	0.08
CY2013Q4	ace	Guaranteed Living Benefits Adjustment Factor For Valuable Guarantees Upper Range GuaranteedLivingBenefitsAdjustmentFactorForValuableGuaranteesUpperRange	0.68
CY2013Q4	ace	Guaranteed Living Benefits Lapse Rate Base Lower Range GuaranteedLivingBenefitsLapseRateBaseLowerRange	0.01
CY2013Q4	ace	Guaranteed Living Benefits Lapse Rate Base Upper Range GuaranteedLivingBenefitsLapseRateBaseUpperRange	0.06
CY2013Q4	ace	Guaranteed Living Benefits Lapse Rate Spike Lower Range GuaranteedLivingBenefitsLapseRateSpikeLowerRange	0.10
CY2013Q4	ace	Guaranteed Living Benefits Lapse Rate Spike Upper Range GuaranteedLivingBenefitsLapseRateSpikeUpperRange	0.30
CY2013Q4	ace	Guaranteed Living Benefits Lapse Rate Ultimate Period GuaranteedLivingBenefitsLapseRateUltimatePeriod	2	Year
CY2013Q4	ace	Guaranteed Living Benefits Lapse Rate Ultimate Range GuaranteedLivingBenefitsLapseRateUltimateRange	0.10
CY2011	ace	Guaranteed Living Benefits Net Income Impact From Model Refinement GuaranteedLivingBenefitsNetIncomeImpactFromModelRefinement	14000000	USD
CY2012	ace	Guaranteed Living Benefits Net Income Impact From Model Refinement GuaranteedLivingBenefitsNetIncomeImpactFromModelRefinement	49000000	USD
CY2013	ace	Guaranteed Living Benefits Net Income Impact From Model Refinement GuaranteedLivingBenefitsNetIncomeImpactFromModelRefinement	9000000	USD
CY2012Q4	ace	Held To Maturity Securities Excluding Mortgage Backed Securities Amortized Cost HeldToMaturitySecuritiesExcludingMortgageBackedSecuritiesAmortizedCost	5242000000	USD
CY2013Q4	ace	Held To Maturity Securities Excluding Mortgage Backed Securities Amortized Cost HeldToMaturitySecuritiesExcludingMortgageBackedSecuritiesAmortizedCost	4757000000	USD
CY2012Q4	ace	Held To Maturity Securities Excluding Mortgage Backed Securities Fair Value HeldToMaturitySecuritiesExcludingMortgageBackedSecuritiesFairValue	5517000000	USD
CY2013Q4	ace	Held To Maturity Securities Excluding Mortgage Backed Securities Fair Value HeldToMaturitySecuritiesExcludingMortgageBackedSecuritiesFairValue	4884000000	USD
CY2012Q4	ace	Heldtomaturity Securities Unrecognized Holding Gain2 HeldtomaturitySecuritiesUnrecognizedHoldingGain2	367000000	USD
CY2013Q4	ace	Heldtomaturity Securities Unrecognized Holding Gain2 HeldtomaturitySecuritiesUnrecognizedHoldingGain2	187000000	USD
CY2012Q4	ace	Heldtomaturity Securities Unrecognized Holding Loss2 HeldtomaturitySecuritiesUnrecognizedHoldingLoss2	4000000	USD
CY2013Q4	ace	Heldtomaturity Securities Unrecognized Holding Loss2 HeldtomaturitySecuritiesUnrecognizedHoldingLoss2	22000000	USD
CY2012	ace	Income Tax Recociliation Resolution Of Prior Years Tax Matters And Closing Of Statutes Of Limitations IncomeTaxRecociliationResolutionOfPriorYearsTaxMattersAndClosingOfStatutesOfLimitations	124000000	USD
CY2011	ace	Income Tax Recociliation Resolution Of Prior Years Tax Matters And Closing Of Statutes Of Limitations IncomeTaxRecociliationResolutionOfPriorYearsTaxMattersAndClosingOfStatutesOfLimitations	0	USD
CY2013	ace	Income Tax Recociliation Resolution Of Prior Years Tax Matters And Closing Of Statutes Of Limitations IncomeTaxRecociliationResolutionOfPriorYearsTaxMattersAndClosingOfStatutesOfLimitations	5000000	USD
CY2012	ace	Income Tax Reconciliation Net Witholding Taxes IncomeTaxReconciliationNetWitholdingTaxes	23000000	USD
CY2013	ace	Income Tax Reconciliation Net Witholding Taxes IncomeTaxReconciliationNetWitholdingTaxes	27000000	USD
CY2011	ace	Income Tax Reconciliation Net Witholding Taxes IncomeTaxReconciliationNetWitholdingTaxes	19000000	USD
CY2013	ace	Increase Decrease In Reinsurance Recoverable Future Policy Benefits IncreaseDecreaseInReinsuranceRecoverableFuturePolicyBenefits	23000000	USD
CY2011	ace	Increase Decrease In Reinsurance Recoverable Future Policy Benefits IncreaseDecreaseInReinsuranceRecoverableFuturePolicyBenefits	25000000	USD
CY2012	ace	Increase Decrease In Reinsurance Recoverable Future Policy Benefits IncreaseDecreaseInReinsuranceRecoverableFuturePolicyBenefits	52000000	USD
CY2012	ace	Increase Decrease In Reinsurance Recoverable Losses And Loss Expenses IncreaseDecreaseInReinsuranceRecoverableLossesAndLossExpenses	372000000	USD
CY2013	ace	Increase Decrease In Reinsurance Recoverable Losses And Loss Expenses IncreaseDecreaseInReinsuranceRecoverableLossesAndLossExpenses	787000000	USD
CY2011	ace	Increase Decrease In Reinsurance Recoverable Losses And Loss Expenses IncreaseDecreaseInReinsuranceRecoverableLossesAndLossExpenses	531000000	USD
CY2011	ace	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Foreign Exchange Revaluation IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationForeignExchangeRevaluation	-1000000	USD
CY2013	ace	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Foreign Exchange Revaluation IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationForeignExchangeRevaluation	-14000000	USD
CY2012	ace	Intangible Assets Arising From Insurance Contracts Acquired In Business Combination Foreign Exchange Revaluation IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationForeignExchangeRevaluation	20000000	USD
CY2013Q4	ace	Intangibleassetsarisingfrominsurancecontractsacquiredinbusinesscombinationamortizationexpensetotal Intangibleassetsarisingfrominsurancecontractsacquiredinbusinesscombinationamortizationexpensetotal	225000000	USD
CY2011	ace	Investment And Embedded Derivative Instruments Gains Losses InvestmentAndEmbeddedDerivativeInstrumentsGainsLosses	-143000000	USD
CY2012	ace	Investment And Embedded Derivative Instruments Gains Losses InvestmentAndEmbeddedDerivativeInstrumentsGainsLosses	-6000000	USD
CY2013	ace	Investment And Embedded Derivative Instruments Gains Losses InvestmentAndEmbeddedDerivativeInstrumentsGainsLosses	78000000	USD
CY2012Q4	ace	Investments In Affiliates Subsidiaries Associates And Joint Ventures At Cost InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesAtCost	451000000	USD
CY2013Q4	ace	Investments In Affiliates Subsidiaries Associates And Joint Ventures At Cost InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesAtCost	467000000	USD
CY2012Q4	ace	Investments In Affiliates Subsidiaries Associates And Joint Ventures Issued Share Capital InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesIssuedShareCapital	715000000	USD
CY2013Q4	ace	Investments In Affiliates Subsidiaries Associates And Joint Ventures Issued Share Capital InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesIssuedShareCapital	1046000000	USD
CY2012Q4	ace	Investments In Subsidiaries To Be Eliminated Upon Consolidation InvestmentsInSubsidiariesToBeEliminatedUponConsolidation		USD
CY2013Q4	ace	Investments In Subsidiaries To Be Eliminated Upon Consolidation InvestmentsInSubsidiariesToBeEliminatedUponConsolidation		USD
CY2011Q4	ace	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Revaluation And Other LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyRevaluationAndOther	113000000	USD
CY2012Q4	ace	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Revaluation And Other LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyRevaluationAndOther	-224000000	USD
CY2011Q4	ace	Loss Reserve Impact Subsidiary Acquistion LossReserveImpactSubsidiaryAcquistion	92000000	USD
CY2013Q4	ace	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Revaluation And Other LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyRevaluationAndOther	173000000	USD
CY2012Q4	ace	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Claims Net Of Reinsurance Recoverable Adjusted For Subsidiary Acquisition LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedClaimsNetOfReinsuranceRecoverableAdjustedForSubsidiaryAcquisition	25889000000	USD
CY2012Q4	ace	Loss Reserve Impact Subsidiary Acquistion LossReserveImpactSubsidiaryAcquistion	14000000	USD
CY2013Q4	ace	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Claims Net Of Reinsurance Recoverable Adjusted For Subsidiary Acquisition LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedClaimsNetOfReinsuranceRecoverableAdjustedForSubsidiaryAcquisition	26633000000	USD
CY2011Q4	ace	Liability For Unpaid Claims And Claims Adjustment Expense Reported And Incurred But Not Reported Claims Net Of Reinsurance Recoverable Adjusted For Subsidiary Acquisition LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedAndIncurredButNotReportedClaimsNetOfReinsuranceRecoverableAdjustedForSubsidiaryAcquisition	25334000000	USD
CY2013	ace	Limited Partnerships Number LimitedPartnershipsNumber	62	partnerships
CY2013Q4	ace	Loss Reserve Impact Subsidiary Acquistion LossReserveImpactSubsidiaryAcquistion	86000000	USD
CY2013Q4	ace	Maximum Overdraft Balance Guaranteed MaximumOverdraftBalanceGuaranteed	300000000	USD
CY2013Q4	ace	Minimum Capital Contributions From Dividend Retention Fund To Century Not Be Required For Xol Agreement MinimumCapitalContributionsFromDividendRetentionFundToCenturyNotBeRequiredForXolAgreement	200000000	USD
CY2013	ace	Moodys Historical Mean Recovery Rate MoodysHistoricalMeanRecoveryRate	0.42
CY2012	ace	Mortgage Backed Securities Credit Losses Recognized In Net Income MortgageBackedSecuritiesCreditLossesRecognizedInNetIncome	6000000	USD
CY2013	ace	Mortgage Backed Securities Credit Losses Recognized In Net Income MortgageBackedSecuritiesCreditLossesRecognizedInNetIncome	1000000	USD
CY2011	ace	Mortgage Backed Securities Credit Losses Recognized In Net Income MortgageBackedSecuritiesCreditLossesRecognizedInNetIncome	11000000	USD
CY2012Q4	ace	Mortgage Backed Securities Percentage United States Government Agency Bonds MortgageBackedSecuritiesPercentageUnitedStatesGovernmentAgencyBonds	0.85
CY2013Q4	ace	Mortgage Backed Securities Percentage United States Government Agency Bonds MortgageBackedSecuritiesPercentageUnitedStatesGovernmentAgencyBonds	0.83
CY2011	ace	Net Operating Results Of Esis Included Within Administrative Expenses NetOperatingResultsOfEsisIncludedWithinAdministrativeExpenses	21000000	USD
CY2013	ace	Net Operating Results Of Esis Included Within Administrative Expenses NetOperatingResultsOfEsisIncludedWithinAdministrativeExpenses	25000000	USD
CY2012	ace	Net Operating Results Of Esis Included Within Administrative Expenses NetOperatingResultsOfEsisIncludedWithinAdministrativeExpenses	23000000	USD
CY2011	ace	Net Realized Gains Losses NetRealizedGainsLosses	-795000000	USD
CY2013	ace	Net Realized Gains Losses NetRealizedGainsLosses	504000000	USD
CY2012	ace	Net Realized Gains Losses NetRealizedGainsLosses	78000000	USD
CY2012Q2	ace	Net Realized Gains Losses NetRealizedGainsLosses	-394000000	USD
CY2012Q1	ace	Net Realized Gains Losses NetRealizedGainsLosses	260000000	USD
CY2012Q4	ace	Net Realized Gains Losses NetRealizedGainsLosses	272000000	USD
CY2012Q3	ace	Net Realized Gains Losses NetRealizedGainsLosses	-60000000	USD
CY2013Q3	ace	Net Realized Gains Losses NetRealizedGainsLosses	40000000	USD
CY2013Q2	ace	Net Realized Gains Losses NetRealizedGainsLosses	104000000	USD
CY2013Q4	ace	Net Realized Gains Losses NetRealizedGainsLosses	154000000	USD
CY2013Q1	ace	Net Realized Gains Losses NetRealizedGainsLosses	206000000	USD
CY2012	ace	Net Realized Gains Losses And Change In Net Unrealized Appreciation Depreciation NetRealizedGainsLossesAndChangeInNetUnrealizedAppreciationDepreciation	996000000	USD
CY2011	ace	Net Realized Gains Losses And Change In Net Unrealized Appreciation Depreciation NetRealizedGainsLossesAndChangeInNetUnrealizedAppreciationDepreciation	-479000000	USD
CY2013	ace	Net Realized Gains Losses And Change In Net Unrealized Appreciation Depreciation NetRealizedGainsLossesAndChangeInNetUnrealizedAppreciationDepreciation	-955000000	USD
CY2012	ace	Net Unrealized Appreciation Included In Other Comprehensive Income NetUnrealizedAppreciationIncludedInOtherComprehensiveIncome	137000000	USD
CY2013	ace	Net Unrealized Appreciation Included In Other Comprehensive Income NetUnrealizedAppreciationIncludedInOtherComprehensiveIncome	25000000	USD
CY2013Q4	ace	Net Unrealized Depreciation Included In Accumulated Other Comprehensive Income NetUnrealizedDepreciationIncludedInAccumulatedOtherComprehensiveIncome	-4000000	USD
CY2012Q4	ace	Net Unrealized Depreciation Included In Accumulated Other Comprehensive Income NetUnrealizedDepreciationIncludedInAccumulatedOtherComprehensiveIncome	-25000000	USD
CY2012Q4	ace	Other Assets Condensed OtherAssetsCondensed	9611000000	USD
CY2013Q4	ace	Other Assets Condensed OtherAssetsCondensed	10592000000	USD
CY2012	ace	Other Comprehensive Income Loss Subtotal OtherComprehensiveIncomeLossSubtotal	1116000000	USD
CY2011	ace	Other Comprehensive Income Loss Subtotal OtherComprehensiveIncomeLossSubtotal	473000000	USD
CY2013	ace	Other Comprehensive Income Loss Subtotal OtherComprehensiveIncomeLossSubtotal	-1867000000	USD
CY2012	ace	Other Derivative Instruments Gains Losses OtherDerivativeInstrumentsGainsLosses	-4000000	USD
CY2013	ace	Other Derivative Instruments Gains Losses OtherDerivativeInstrumentsGainsLosses	-2000000	USD
CY2011	ace	Other Derivative Instruments Gains Losses OtherDerivativeInstrumentsGainsLosses	-4000000	USD
CY2013Q4	ace	Other Investments Limited Partnerships And Partially Owned Investment Companies Carrying Value OtherInvestmentsLimitedPartnershipsAndPartiallyOwnedInvestmentCompaniesCarryingValue	1900000000	USD
CY2013Q4	ace	Other Investments Limited Partnerships And Partially Owned Investment Companies Funding Commitments OtherInvestmentsLimitedPartnershipsAndPartiallyOwnedInvestmentCompaniesFundingCommitments	1200000000	USD
CY2011	ace	Other Investments Other Than Temporary Impairments OtherInvestmentsOtherThanTemporaryImpairments	3000000	USD
CY2012	ace	Other Investments Other Than Temporary Impairments OtherInvestmentsOtherThanTemporaryImpairments	7000000	USD
CY2013	ace	Other Investments Other Than Temporary Impairments OtherInvestmentsOtherThanTemporaryImpairments	2000000	USD
CY2013	ace	Other Nonoperating Income Expense Excluding Separate Account Losses OtherNonoperatingIncomeExpenseExcludingSeparateAccountLosses	31000000	USD
CY2012	ace	Other Nonoperating Income Expense Excluding Separate Account Losses OtherNonoperatingIncomeExpenseExcludingSeparateAccountLosses	23000000	USD
CY2011	ace	Other Nonoperating Income Expense Excluding Separate Account Losses OtherNonoperatingIncomeExpenseExcludingSeparateAccountLosses	45000000	USD
CY2013	ace	Other Realized Gains Losses OtherRealizedGainsLosses	-3000000	USD
CY2012	ace	Proceeds From Sales To Be Announced Mortgage Backed Securities ProceedsFromSalesToBeAnnouncedMortgageBackedSecurities	448000000	USD
CY2013	ace	Proceeds From Sales To Be Announced Mortgage Backed Securities ProceedsFromSalesToBeAnnouncedMortgageBackedSecurities	58000000	USD
CY2012	ace	Proceeds From Share Based Compensation Plans ProceedsFromShareBasedCompensationPlans	126000000	USD
CY2011	ace	Other Realized Gains Losses OtherRealizedGainsLosses	-22000000	USD
CY2012	ace	Other Realized Gains Losses OtherRealizedGainsLosses	3000000	USD
CY2012	ace	Payment Of Contributions To Subsidiary PaymentOfContributionsToSubsidiary	0	USD
CY2013	ace	Payment Of Contributions To Subsidiary PaymentOfContributionsToSubsidiary		USD
CY2011	ace	Payment Of Contributions To Subsidiary PaymentOfContributionsToSubsidiary	0	USD
CY2012	ace	Payments To Acquire Available For Sale Securities Debt Condensed PaymentsToAcquireAvailableForSaleSecuritiesDebtCondensed	23961000000	USD
CY2013	ace	Payments To Acquire Available For Sale Securities Debt Condensed PaymentsToAcquireAvailableForSaleSecuritiesDebtCondensed	21398000000	USD
CY2011	ace	Payments To Acquire Available For Sale Securities Debt Condensed PaymentsToAcquireAvailableForSaleSecuritiesDebtCondensed	24278000000	USD
CY2012	ace	Payments To Acquire To Be Announced Mortgage Backed Securities PaymentsToAcquireToBeAnnouncedMortgageBackedSecurities	389000000	USD
CY2013	ace	Payments To Acquire To Be Announced Mortgage Backed Securities PaymentsToAcquireToBeAnnouncedMortgageBackedSecurities	58000000	USD
CY2011	ace	Payments To Acquire To Be Announced Mortgage Backed Securities PaymentsToAcquireToBeAnnouncedMortgageBackedSecurities	755000000	USD
CY2012	ace	Payments To From Affiliates PaymentsToFromAffiliates	206000000	USD
CY2011	ace	Payments To From Affiliates PaymentsToFromAffiliates	-28000000	USD
CY2013Q4	ace	Percentage Of Guaranteed Minimium Income Benefits Represented By Clients With Several Years Experience PercentageOfGuaranteedMinimiumIncomeBenefitsRepresentedByClientsWithSeveralYearsExperience	0.37
CY2013	ace	Policy Acquisition Costs And Administrative Expenses PolicyAcquisitionCostsAndAdministrativeExpenses	4870000000	USD
CY2012	ace	Policy Acquisition Costs And Administrative Expenses PolicyAcquisitionCostsAndAdministrativeExpenses	4542000000	USD
CY2011	ace	Policy Acquisition Costs And Administrative Expenses PolicyAcquisitionCostsAndAdministrativeExpenses	4540000000	USD
CY2013Q4	ace	Portion Of Gross Unrealized Loss Represented By United States Treasury And Agency Obligations PortionOfGrossUnrealizedLossRepresentedByUnitedStatesTreasuryAndAgencyObligations	425000000	USD
CY2013	ace	Proceeds From Repayments Of Long Term Debt ProceedsFromRepaymentsOfLongTermDebt	-947000000	USD
CY2012	ace	Proceeds From Repayments Of Short Term Borrowings ProceedsFromRepaymentsOfShortTermBorrowings	150000000	USD
CY2011	ace	Proceeds From Repayments Of Short Term Borrowings ProceedsFromRepaymentsOfShortTermBorrowings	-50000000	USD
CY2012	ace	Proceeds From Sale Of Available For Sale Securities Debt Condensed ProceedsFromSaleOfAvailableForSaleSecuritiesDebtCondensed	14769000000	USD
CY2013	ace	Proceeds From Sale Of Available For Sale Securities Debt Condensed ProceedsFromSaleOfAvailableForSaleSecuritiesDebtCondensed	10413000000	USD
CY2011	ace	Proceeds From Sale Of Available For Sale Securities Debt Condensed ProceedsFromSaleOfAvailableForSaleSecuritiesDebtCondensed	17971000000	USD
CY2011	ace	Proceeds From Sales To Be Announced Mortgage Backed Securities ProceedsFromSalesToBeAnnouncedMortgageBackedSecurities	795000000	USD
CY2013	ace	Proceeds From Share Based Compensation Plans ProceedsFromShareBasedCompensationPlans	135000000	USD
CY2011	ace	Proceeds From Share Based Compensation Plans ProceedsFromShareBasedCompensationPlans	139000000	USD
CY2011	ace	Product Line Casualty Net Premiums Earned ProductLineCasualtyNetPremiumsEarned	5340000000	USD
CY2012	ace	Product Line Casualty Net Premiums Earned ProductLineCasualtyNetPremiumsEarned	5292000000	USD
CY2013	ace	Product Line Casualty Net Premiums Earned ProductLineCasualtyNetPremiumsEarned	5759000000	USD
CY2012	ace	Product Line Life Accident And Health Net Premiums Earned ProductLineLifeAccidentAndHealthNetPremiumsEarned	4412000000	USD
CY2013	ace	Product Line Life Accident And Health Net Premiums Earned ProductLineLifeAccidentAndHealthNetPremiumsEarned	4472000000	USD
CY2011	ace	Product Line Life Accident And Health Net Premiums Earned ProductLineLifeAccidentAndHealthNetPremiumsEarned	4335000000	USD
CY2013	ace	Product Line Property And All Other Net Premiums Earned ProductLinePropertyAndAllOtherNetPremiumsEarned	6382000000	USD
CY2011	ace	Product Line Property And All Other Net Premiums Earned ProductLinePropertyAndAllOtherNetPremiumsEarned	5712000000	USD
CY2012	ace	Product Line Property And All Other Net Premiums Earned ProductLinePropertyAndAllOtherNetPremiumsEarned	5973000000	USD
CY2013	ace	Recoverable From Unrated Reinsurers Ceded Reserve Default Factor RecoverableFromUnratedReinsurersCededReserveDefaultFactor	0.34
CY2012Q4	ace	Reinsurance Recoverable Future Policy Benefits ReinsuranceRecoverableFuturePolicyBenefits	241000000	USD
CY2013Q4	ace	Reinsurance Recoverable Future Policy Benefits ReinsuranceRecoverableFuturePolicyBenefits	218000000	USD
CY2012Q4	ace	Reinsurance Recoverable Losses And Loss Expenses ReinsuranceRecoverableLossesAndLossExpenses	12078000000	USD
CY2013Q4	ace	Reinsurance Recoverable Losses And Loss Expenses ReinsuranceRecoverableLossesAndLossExpenses	11227000000	USD
CY2013Q4	ace	Reinsurance Recoverable Losses And Loss Expenses Gross ReinsuranceRecoverableLossesAndLossExpensesGross	11617000000	USD
CY2012Q4	ace	Reinsurance Recoverable Paid Losses And Loss Expenses Net ReinsuranceRecoverablePaidLossesAndLossExpensesNet	679000000	USD
CY2013Q4	ace	Reinsurance Recoverable Paid Losses And Loss Expenses Net ReinsuranceRecoverablePaidLossesAndLossExpensesNet	615000000	USD
CY2012Q4	ace	Reinsurance Recoverable Unpaid Losses And Loss Expenses Net ReinsuranceRecoverableUnpaidLossesAndLossExpensesNet	11399000000	USD
CY2013Q4	ace	Reinsurance Recoverable Unpaid Losses And Loss Expenses Net ReinsuranceRecoverableUnpaidLossesAndLossExpensesNet	10612000000	USD
CY2011Q4	ace	Reinsurance Recoverable Unpaid Losses And Loss Expenses Net ReinsuranceRecoverableUnpaidLossesAndLossExpensesNet	11602000000	USD
CY2010Q4	ace	Reinsurance Recoverable Unpaid Losses And Loss Expenses Net ReinsuranceRecoverableUnpaidLossesAndLossExpensesNet	12149000000	USD
CY2013	ace	Reinsurance Recoveries Losses And Loss Expenses Incurred ReinsuranceRecoveriesLossesAndLossExpensesIncurred	3100000000	USD
CY2011	ace	Reinsurance Recoveries Losses And Loss Expenses Incurred ReinsuranceRecoveriesLossesAndLossExpensesIncurred	3300000000	USD
CY2012	ace	Reinsurance Recoveries Losses And Loss Expenses Incurred ReinsuranceRecoveriesLossesAndLossExpensesIncurred	4300000000	USD
CY2012Q4	ace	Restricted Assets Deposits With Non United States Regulatory Authorities RestrictedAssetsDepositsWithNonUnitedStatesRegulatoryAuthorities	2133000000	USD
CY2013Q4	ace	Restricted Assets Deposits With Non United States Regulatory Authorities RestrictedAssetsDepositsWithNonUnitedStatesRegulatoryAuthorities	1970000000	USD
CY2012Q4	ace	Restricted Assets Deposits With United States Regulatory Authorities RestrictedAssetsDepositsWithUnitedStatesRegulatoryAuthorities	1338000000	USD
CY2013Q4	ace	Restricted Assets Deposits With United States Regulatory Authorities RestrictedAssetsDepositsWithUnitedStatesRegulatoryAuthorities	1334000000	USD
CY2013Q4	ace	Restricted Assets Other Pledged Assets RestrictedAssetsOtherPledgedAssets	391000000	USD
CY2012Q4	ace	Restricted Assets Other Pledged Assets RestrictedAssetsOtherPledgedAssets	456000000	USD
CY2013Q4	ace	Restricted Assets Trust Funds RestrictedAssetsTrustFunds	11315000000	USD
CY2012Q4	ace	Restricted Assets Trust Funds RestrictedAssetsTrustFunds	11389000000	USD
CY2012	ace	Restricted Stock Units Issued To Non Management Directors During Period Shares Restricted Stock Award RestrictedStockUnitsIssuedToNonManagementDirectorsDuringPeriodSharesRestrictedStockAward	25669	shares
CY2011	ace	Restricted Stock Units Issued To Non Management Directors During Period Shares Restricted Stock Award RestrictedStockUnitsIssuedToNonManagementDirectorsDuringPeriodSharesRestrictedStockAward	32660	shares
CY2013	ace	Restricted Stock Units Issued To Non Management Directors During Period Shares Restricted Stock Award RestrictedStockUnitsIssuedToNonManagementDirectorsDuringPeriodSharesRestrictedStockAward	20969	shares
CY2012	ace	Standard And Poors Put Options And Futures Gains Losses StandardAndPoorsPutOptionsAndFuturesGainsLosses	-297000000	USD
CY2013	ace	Standard And Poors Put Options And Futures Gains Losses StandardAndPoorsPutOptionsAndFuturesGainsLosses	-579000000	USD
CY2011	ace	Standard And Poors Put Options And Futures Gains Losses StandardAndPoorsPutOptionsAndFuturesGainsLosses	-4000000	USD
CY2012Q4	ace	Trading Securities Mutual Funds TradingSecuritiesMutualFunds	212000000	USD
CY2013Q4	ace	Trading Securities Mutual Funds TradingSecuritiesMutualFunds	246000000	USD
CY2013	ace	Underwriting Income Loss Insurance UnderwritingIncomeLossInsurance	1880000000	USD
CY2012	ace	Underwriting Income Loss Insurance UnderwritingIncomeLossInsurance	961000000	USD
CY2011	ace	Underwriting Income Loss Insurance UnderwritingIncomeLossInsurance	926000000	USD
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000896159
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	336657376	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	30000000000	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	ACE Ltd
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013	dei	Trading Symbol TradingSymbol	ACE

Files In Submission

Name	View Source	Status
0000896159-14-000003-index-headers.html	Edgar Link	pending
0000896159-14-000003-index.html	Edgar Link	pending
0000896159-14-000003.txt	Edgar Link	pending
0000896159-14-000003-xbrl.zip	Edgar Link	pending
ace-12312013x10k.htm	Edgar Link	pending
ace-12312013xex1056.htm	Edgar Link	pending
ace-12312013xex1067.htm	Edgar Link	pending
ace-12312013xex1068.htm	Edgar Link	pending
ace-12312013xex121.htm	Edgar Link	pending
ace-12312013xex211.htm	Edgar Link	pending
ace-12312013xex231.htm	Edgar Link	pending
ace-12312013xex311.htm	Edgar Link	pending
ace-12312013xex312.htm	Edgar Link	pending
ace-12312013xex321.htm	Edgar Link	pending
ace-12312013xex322.htm	Edgar Link	pending
ace-20131231.xml	Edgar Link	completed
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Financial_Report.xls	Edgar Link	pending
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$CB
Chubb Ltd Stock $cb

2012 Q4 Form 10-K Financial Statement

#000089615914000003 Filed on February 28, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CB Chubb Ltd Stock $cb

2012 Q4 Form 10-K Financial Statement

#000089615914000003 Filed on February 28, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CB
Chubb Ltd Stock $cb