$MMC
MARSH & MCLENNAN COMPANIES, INC.

2020 Q4 Form 10-Q Financial Statement

#000006270920000053 Filed on October 30, 2020

View on sec.gov

Income Statement

Concept 2020 Q4 2020 Q3 2019 Q3
Revenue $4.416B $3.968B $3.968B
YoY Change 3.56% 0.0% 13.24%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin $2.650B $2.495B $2.437B
YoY Change 6.94% 2.38% 16.99%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $194.0M $185.0M $170.0M
YoY Change 16.17% 8.82% 37.1%
% of Gross Profit
Operating Expenses $3.775B $3.428B $3.501B
YoY Change 6.97% -2.09% 18.16%
Operating Profit $571.0M $540.0M $467.0M
YoY Change -3.55% 15.63% -13.68%
Interest Expense -$101.0M $128.0M $133.0M
YoY Change -17.89% -3.76% 92.75%
% of Operating Profit -17.69% 23.7% 28.48%
Other Income/Expense, Net $70.00M $60.00M $69.00M
YoY Change 12.9% -13.04% 9.52%
Pretax Income $540.0M $459.0M $414.0M
YoY Change 1.69% 10.87% 7.53%
Income Tax $161.0M $139.0M $108.0M
% Of Pretax Income 29.81% 30.28% 26.09%
Net Earnings $374.0M $316.0M $303.0M
YoY Change -4.35% 4.29% 9.78%
Net Earnings / Revenue 8.47% 7.96% 7.64%
Basic Earnings Per Share $0.74 $0.62 $0.60
Diluted Earnings Per Share $0.73 $0.62 $0.59
COMMON SHARES
Basic Shares Outstanding 507.2M shares 507.0M shares 506.0M shares
Diluted Shares Outstanding 512.0M shares 511.0M shares

Balance Sheet

Concept 2020 Q4 2020 Q3 2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments $2.089B $2.388B $1.213B
YoY Change 80.87% 96.87% 27.55%
Cash & Equivalents $2.089B $2.388B $1.213B
Short-Term Investments
Other Short-Term Assets $740.0M $688.0M $645.0M
YoY Change 9.31% 6.67% 19.67%
Inventory
Prepaid Expenses
Receivables $5.326B $5.236B $5.198B
Other Receivables $0.00 $0.00 $0.00
Total Short-Term Assets $8.155B $8.312B $7.056B
YoY Change 15.38% 17.8% 18.27%
LONG-TERM ASSETS
Property, Plant & Equipment $856.0M $864.0M $816.0M
YoY Change -0.23% 5.88% 15.42%
Goodwill $15.52B $15.03B $14.29B
YoY Change 5.77% 5.24% 51.41%
Intangibles $2.699B
YoY Change -2.7%
Long-Term Investments $280.0M $265.0M $452.0M
YoY Change -35.48% -41.37% 52.7%
Other Assets $1.458B $1.428B $1.653B
YoY Change -17.02% -13.61% 19.7%
Total Long-Term Assets $24.89B $24.37B $24.04B
YoY Change 2.49% 1.36% 58.55%
TOTAL ASSETS
Total Short-Term Assets $8.155B $8.312B $7.056B
Total Long-Term Assets $24.89B $24.37B $24.04B
Total Assets $33.05B $32.68B $31.10B
YoY Change 5.4% 5.09% 47.18%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $3.050B $2.662B $2.479B
YoY Change 11.07% 7.38% 8.11%
Accrued Expenses $2.742B $2.097B $2.103B
YoY Change 8.0% -0.29% 49.57%
Deferred Revenue
YoY Change
Short-Term Debt $517.0M $500.0M $625.0M
YoY Change -57.45% -20.0% 733.33%
Long-Term Debt Due $517.0M $1.216B $514.0M
YoY Change -57.45% 136.58% -8.7%
Total Short-Term Liabilities $6.556B $6.530B $6.204B
YoY Change -1.84% 5.25% 31.25%
LONG-TERM LIABILITIES
Long-Term Debt $10.80B $11.53B $11.43B
YoY Change 0.51% 0.9% 107.35%
Other Long-Term Liabilities $1.485B $1.450B $1.388B
YoY Change 6.3% 4.47% 4.99%
Total Long-Term Liabilities $12.28B $12.98B $12.82B
YoY Change 1.18% 1.29% 869.52%
TOTAL LIABILITIES
Total Short-Term Liabilities $6.556B $6.530B $6.204B
Total Long-Term Liabilities $12.28B $12.98B $12.82B
Total Liabilities $18.84B $19.51B $19.02B
YoY Change 0.11% 2.58% 214.45%
SHAREHOLDERS EQUITY
Retained Earnings $16.27B $15.90B $14.81B
YoY Change 7.06% 7.37% 4.33%
Common Stock $1.504B $1.443B $1.357B
YoY Change 5.69% 6.34% 1.88%
Preferred Stock
YoY Change
Treasury Stock (at cost) $3.562B $3.606B $3.617B
YoY Change -5.62% -0.3% 0.84%
Treasury Stock Shares 52.91M shares 53.63M shares 55.64M shares
Shareholders Equity $9.104B $8.591B $7.620B
YoY Change
Total Liabilities & Shareholders Equity $33.05B $32.68B $31.10B
YoY Change 5.4% 5.09% 47.18%

Cashflow Statement

Concept 2020 Q4 2020 Q3 2019 Q3
OPERATING ACTIVITIES
Net Income $374.0M $316.0M $303.0M
YoY Change -4.35% 4.29% 9.78%
Depreciation, Depletion And Amortization $194.0M $185.0M $170.0M
YoY Change 16.17% 8.82% 37.1%
Cash From Operating Activities $1.383B $1.421B $1.050B
YoY Change 29.25% 35.33% 15.89%
INVESTING ACTIVITIES
Capital Expenditures -$70.00M -$78.00M -$123.0M
YoY Change -48.91% -36.59% 41.38%
Acquisitions
YoY Change
Other Investing Activities -$98.00M -$4.000M $49.00M
YoY Change 226.67% -108.16% -112.69%
Cash From Investing Activities -$168.0M -$82.00M -$74.00M
YoY Change 0.6% 10.81% -84.36%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities -1.717B -784.0M -987.0M
YoY Change 66.54% -20.57% 91.65%
NET CHANGE
Cash From Operating Activities 1.383B 1.421B 1.050B
Cash From Investing Activities -168.0M -82.00M -74.00M
Cash From Financing Activities -1.717B -784.0M -987.0M
Net Change In Cash -502.0M 555.0M -11.00M
YoY Change 292.19% -5145.45% -86.59%
FREE CASH FLOW
Cash From Operating Activities $1.383B $1.421B $1.050B
Capital Expenditures -$70.00M -$78.00M -$123.0M
Free Cash Flow $1.453B $1.499B $1.173B
YoY Change 20.38% 27.79% 18.13%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
dei Entity Address Address Line1
EntityAddressAddressLine1
1166 Avenue of the Americas
dei Entity Address City Or Town
EntityAddressCityOrTown
New York
dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
dei Entity Central Index Key
EntityCentralIndexKey
0000062709
dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2020
dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
Q3
dei Amendment Flag
AmendmentFlag
false
CY2020Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2020Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2020Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2020Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2020Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2019 us-gaap Accounting Standards Update Extensible List
AccountingStandardsUpdateExtensibleList
us-gaap:AccountingStandardsUpdate201602Member
CY2019 us-gaap Accounting Standards Update Extensible List
AccountingStandardsUpdateExtensibleList
us-gaap:AccountingStandardsUpdate201602Member
dei Document Type
DocumentType
10-Q
dei Document Quarterly Report
DocumentQuarterlyReport
true
dei Document Period End Date
DocumentPeriodEndDate
2020-09-30
dei Document Transition Report
DocumentTransitionReport
false
dei Entity Registrant Name
EntityRegistrantName
Marsh & McLennan Companies, Inc.
dei Entity Address State Or Province
EntityAddressStateOrProvince
NY
dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
10036
dei City Area Code
CityAreaCode
212
dei Local Phone Number
LocalPhoneNumber
345-5000
dei Entity File Number
EntityFileNumber
1-5998
dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
DE
dei Entity Tax Identification Number
EntityTaxIdentificationNumber
36-2668272
dei Security12b Title
Security12bTitle
Common Stock, par value $1.00 per share
dei Trading Symbol
TradingSymbol
MMC
dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
dei Entity Small Business
EntitySmallBusiness
false
dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
dei Entity Shell Company
EntityShellCompany
false
CY2020Q4 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
507190569 shares
CY2020Q3 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
3968000000 USD
CY2019Q3 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
3968000000 USD
us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
12808000000 USD
us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
12388000000 USD
CY2020Q3 us-gaap Labor And Related Expense
LaborAndRelatedExpense
2495000000 USD
CY2019Q3 us-gaap Labor And Related Expense
LaborAndRelatedExpense
2437000000 USD
us-gaap Labor And Related Expense
LaborAndRelatedExpense
7479000000 USD
us-gaap Labor And Related Expense
LaborAndRelatedExpense
7256000000 USD
CY2020Q3 us-gaap Other Cost And Expense Operating
OtherCostAndExpenseOperating
933000000 USD
CY2019Q3 us-gaap Other Cost And Expense Operating
OtherCostAndExpenseOperating
1064000000 USD
us-gaap Other Cost And Expense Operating
OtherCostAndExpenseOperating
2834000000 USD
us-gaap Other Cost And Expense Operating
OtherCostAndExpenseOperating
3047000000 USD
CY2020Q3 us-gaap Operating Expenses
OperatingExpenses
3428000000 USD
CY2019Q3 us-gaap Operating Expenses
OperatingExpenses
3501000000 USD
us-gaap Operating Expenses
OperatingExpenses
10313000000 USD
us-gaap Operating Expenses
OperatingExpenses
10303000000 USD
CY2020Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
540000000 USD
CY2019Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
467000000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
2495000000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
2085000000 USD
CY2020Q3 us-gaap Defined Benefit Plan Other Costs
DefinedBenefitPlanOtherCosts
-60000000 USD
CY2019Q3 us-gaap Defined Benefit Plan Other Costs
DefinedBenefitPlanOtherCosts
-69000000 USD
us-gaap Defined Benefit Plan Other Costs
DefinedBenefitPlanOtherCosts
-187000000 USD
us-gaap Defined Benefit Plan Other Costs
DefinedBenefitPlanOtherCosts
-203000000 USD
CY2020Q3 us-gaap Investment Income Interest
InvestmentIncomeInterest
1000000 USD
CY2019Q3 us-gaap Investment Income Interest
InvestmentIncomeInterest
4000000 USD
us-gaap Investment Income Interest
InvestmentIncomeInterest
5000000 USD
us-gaap Investment Income Interest
InvestmentIncomeInterest
34000000 USD
CY2020Q3 us-gaap Interest Expense
InterestExpense
128000000 USD
CY2019Q3 us-gaap Interest Expense
InterestExpense
133000000 USD
us-gaap Interest Expense
InterestExpense
387000000 USD
us-gaap Interest Expense
InterestExpense
394000000 USD
CY2020Q3 us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
0 USD
CY2019Q3 us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
0 USD
us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
0 USD
us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
-32000000 USD
CY2020Q3 us-gaap Gain Loss On Investments
GainLossOnInvestments
-14000000 USD
CY2019Q3 us-gaap Gain Loss On Investments
GainLossOnInvestments
7000000 USD
us-gaap Gain Loss On Investments
GainLossOnInvestments
-47000000 USD
us-gaap Gain Loss On Investments
GainLossOnInvestments
20000000 USD
CY2020Q3 us-gaap Change In Unrealized Gain Loss On Foreign Currency Fair Value Hedging Instruments1
ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1
0 USD
CY2019Q3 us-gaap Change In Unrealized Gain Loss On Foreign Currency Fair Value Hedging Instruments1
ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1
0 USD
us-gaap Change In Unrealized Gain Loss On Foreign Currency Fair Value Hedging Instruments1
ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1
0 USD
us-gaap Change In Unrealized Gain Loss On Foreign Currency Fair Value Hedging Instruments1
ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1
-8000000 USD
CY2020Q3 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
459000000 USD
CY2019Q3 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
414000000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
2253000000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
1908000000 USD
CY2020Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
139000000 USD
CY2019Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
108000000 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
586000000 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
531000000 USD
CY2020Q3 us-gaap Profit Loss
ProfitLoss
320000000 USD
CY2019Q3 us-gaap Profit Loss
ProfitLoss
306000000 USD
us-gaap Profit Loss
ProfitLoss
1667000000 USD
us-gaap Profit Loss
ProfitLoss
1377000000 USD
CY2020Q3 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
4000000 USD
CY2019Q3 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
3000000 USD
us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
25000000 USD
us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
26000000 USD
CY2020Q3 us-gaap Net Income Loss
NetIncomeLoss
316000000 USD
CY2019Q3 us-gaap Net Income Loss
NetIncomeLoss
303000000 USD
us-gaap Net Income Loss
NetIncomeLoss
1642000000 USD
us-gaap Net Income Loss
NetIncomeLoss
1351000000 USD
CY2020Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.62
CY2019Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.60
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
3.25
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.67
CY2020Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.62
CY2019Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.59
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
3.21
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
2.64
CY2020Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
507000000 shares
CY2019Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
506000000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
506000000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
506000000 shares
CY2020Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
512000000 shares
CY2019Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
511000000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
511000000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
511000000 shares
CY2020Q3 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
507000000 shares
CY2019Q3 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
505000000 shares
CY2020Q3 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
507000000 shares
CY2019Q3 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
505000000 shares
CY2020Q3 us-gaap Profit Loss
ProfitLoss
320000000 USD
CY2019Q3 us-gaap Profit Loss
ProfitLoss
306000000 USD
us-gaap Profit Loss
ProfitLoss
1667000000 USD
us-gaap Profit Loss
ProfitLoss
1377000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
500000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
-475000000 USD
us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
-200000000 USD
us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
-366000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
73000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
-82000000 USD
us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
-136000000 USD
us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
-102000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
427000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
-393000000 USD
us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
-64000000 USD
us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
-264000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
-7000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
11000000 USD
us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
29000000 USD
us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
20000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
434000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-404000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-93000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-284000000 USD
CY2020Q3 us-gaap Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
754000000 USD
CY2019Q3 us-gaap Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
-98000000 USD
us-gaap Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
1574000000 USD
us-gaap Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
1093000000 USD
CY2020Q3 us-gaap Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
4000000 USD
CY2019Q3 us-gaap Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
3000000 USD
us-gaap Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
25000000 USD
us-gaap Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
26000000 USD
CY2020Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
750000000 USD
CY2019Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-101000000 USD
CY2020Q3 us-gaap Other Assets Current
OtherAssetsCurrent
688000000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
1549000000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
1067000000 USD
CY2020Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
2388000000 USD
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
1155000000 USD
CY2020Q3 mmc Accrued Feesand Other Revenue Receivable Gross Current
AccruedFeesandOtherRevenueReceivableGrossCurrent
4658000000 USD
CY2019Q4 mmc Accrued Feesand Other Revenue Receivable Gross Current
AccruedFeesandOtherRevenueReceivableGrossCurrent
4608000000 USD
CY2020Q3 mmc Advanced Premiumsand Claims Receivable Gross Current
AdvancedPremiumsandClaimsReceivableGrossCurrent
121000000 USD
CY2019Q4 mmc Advanced Premiumsand Claims Receivable Gross Current
AdvancedPremiumsandClaimsReceivableGrossCurrent
123000000 USD
CY2020Q3 us-gaap Other Receivables Gross Current
OtherReceivablesGrossCurrent
604000000 USD
CY2019Q4 us-gaap Other Receivables Gross Current
OtherReceivablesGrossCurrent
645000000 USD
CY2020Q3 us-gaap Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
5383000000 USD
CY2019Q4 us-gaap Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
5376000000 USD
CY2020Q3 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
147000000 USD
CY2019Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
140000000 USD
CY2020Q3 us-gaap Receivables Net Current
ReceivablesNetCurrent
5236000000 USD
CY2019Q4 us-gaap Receivables Net Current
ReceivablesNetCurrent
5236000000 USD
CY2019Q4 us-gaap Other Assets Current
OtherAssetsCurrent
677000000 USD
CY2020Q3 us-gaap Assets Current
AssetsCurrent
8312000000 USD
CY2019Q4 us-gaap Assets Current
AssetsCurrent
7068000000 USD
CY2020Q3 us-gaap Goodwill
Goodwill
15034000000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
14671000000 USD
CY2020Q3 us-gaap Other Intangible Assets Net
OtherIntangibleAssetsNet
2711000000 USD
CY2019Q4 us-gaap Other Intangible Assets Net
OtherIntangibleAssetsNet
2774000000 USD
CY2020Q3 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
2113000000 USD
CY2019Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
2001000000 USD
CY2020Q3 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
864000000 USD
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
858000000 USD
CY2020Q3 us-gaap Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
1825000000 USD
CY2019Q4 us-gaap Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
1632000000 USD
CY2020Q3 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
1884000000 USD
CY2019Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
1921000000 USD
CY2020Q3 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
623000000 USD
CY2019Q4 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
676000000 USD
CY2020Q3 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
1428000000 USD
CY2019Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
1757000000 USD
CY2020Q3 us-gaap Assets
Assets
32681000000 USD
CY2019Q4 us-gaap Assets
Assets
31357000000 USD
CY2020Q3 us-gaap Debt Current
DebtCurrent
1216000000 USD
CY2019Q4 us-gaap Debt Current
DebtCurrent
1215000000 USD
CY2020Q3 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
2662000000 USD
CY2019Q4 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
2746000000 USD
CY2020Q3 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
1762000000 USD
CY2019Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
2197000000 USD
CY2020Q3 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
335000000 USD
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
342000000 USD
CY2020Q3 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
318000000 USD
CY2019Q4 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
179000000 USD
CY2020Q3 us-gaap Dividends Payable Current
DividendsPayableCurrent
237000000 USD
CY2019Q4 us-gaap Dividends Payable Current
DividendsPayableCurrent
0 USD
CY2020Q3 us-gaap Liabilities Current
LiabilitiesCurrent
6530000000 USD
CY2019Q4 us-gaap Liabilities Current
LiabilitiesCurrent
6679000000 USD
CY2020Q3 mmc Fiduciary Liabilities Gross Noncurrent
FiduciaryLiabilitiesGrossNoncurrent
8765000000 USD
CY2019Q4 mmc Fiduciary Liabilities Gross Noncurrent
FiduciaryLiabilitiesGrossNoncurrent
7344000000 USD
CY2020Q3 mmc Cashand Investments Heldin Fiduciary Capacity Noncurrent
CashandInvestmentsHeldinFiduciaryCapacityNoncurrent
8765000000 USD
CY2019Q4 mmc Cashand Investments Heldin Fiduciary Capacity Noncurrent
CashandInvestmentsHeldinFiduciaryCapacityNoncurrent
7344000000 USD
CY2020Q3 mmc Fiduciary Liabilities Net Noncurrent
FiduciaryLiabilitiesNetNoncurrent
0 USD
CY2019Q4 mmc Fiduciary Liabilities Net Noncurrent
FiduciaryLiabilitiesNetNoncurrent
0 USD
CY2020Q3 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
11532000000 USD
CY2019Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
10741000000 USD
CY2020Q3 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
2163000000 USD
CY2019Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
2336000000 USD
CY2020Q3 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1902000000 USD
CY2019Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1926000000 USD
CY2020Q3 mmc Liability For Errors And Omissions
LiabilityForErrorsAndOmissions
352000000 USD
CY2019Q4 mmc Liability For Errors And Omissions
LiabilityForErrorsAndOmissions
335000000 USD
CY2020Q3 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
1450000000 USD
CY2019Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
1397000000 USD
CY2020Q3 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
0 USD
CY2019Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
0 USD
CY2020Q3 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
1
CY2019Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
1
CY2020Q3 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
6000000 shares
CY2019Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
6000000 shares
CY2019Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0 shares
CY2020Q3 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0 shares
CY2020Q3 us-gaap Preferred Stock Value
PreferredStockValue
0 USD
CY2019Q4 us-gaap Preferred Stock Value
PreferredStockValue
0 USD
CY2019Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
1
CY2020Q3 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
1
CY2020Q3 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1600000000 shares
CY2019Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1600000000 shares
CY2020Q3 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
560641640 shares
CY2019Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
560641640 shares
CY2020Q3 us-gaap Common Stock Value
CommonStockValue
561000000 USD
CY2019Q4 us-gaap Common Stock Value
CommonStockValue
561000000 USD
CY2020Q3 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
882000000 USD
CY2019Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
862000000 USD
CY2020Q3 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
15902000000 USD
CY2019Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
15199000000 USD
CY2020Q3 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-5148000000 USD
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-5055000000 USD
CY2020Q3 us-gaap Minority Interest
MinorityInterest
161000000 USD
CY2019Q4 us-gaap Minority Interest
MinorityInterest
150000000 USD
CY2020Q3 mmc Stockholders Equity Subtotal Before Treasury Stock
StockholdersEquitySubtotalBeforeTreasuryStock
12358000000 USD
CY2019Q4 mmc Stockholders Equity Subtotal Before Treasury Stock
StockholdersEquitySubtotalBeforeTreasuryStock
11717000000 USD
CY2020Q3 us-gaap Treasury Stock Shares
TreasuryStockShares
53626539 shares
CY2019Q4 us-gaap Treasury Stock Shares
TreasuryStockShares
57013097 shares
CY2020Q3 us-gaap Treasury Stock Value
TreasuryStockValue
3606000000 USD
CY2019Q4 us-gaap Treasury Stock Value
TreasuryStockValue
3774000000 USD
CY2020Q3 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
8752000000 USD
CY2019Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
7943000000 USD
CY2020Q3 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
32681000000 USD
CY2019Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
31357000000 USD
us-gaap Profit Loss
ProfitLoss
1667000000 USD
us-gaap Profit Loss
ProfitLoss
1377000000 USD
us-gaap Depreciation
Depreciation
282000000 USD
us-gaap Depreciation
Depreciation
245000000 USD
us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
265000000 USD
us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
235000000 USD
mmc Leases Right Of Use Asset Amortization
LeasesRightOfUseAssetAmortization
241000000 USD
mmc Leases Right Of Use Asset Amortization
LeasesRightOfUseAssetAmortization
236000000 USD
us-gaap Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1
BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
-14000000 USD
us-gaap Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1
BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
-9000000 USD
us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
0 USD
us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
-32000000 USD
us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
6000000 USD
us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
95000000 USD
us-gaap Gain Loss On Investments
GainLossOnInvestments
-47000000 USD
us-gaap Gain Loss On Investments
GainLossOnInvestments
20000000 USD
us-gaap Gain Loss On Sale Of Other Assets
GainLossOnSaleOfOtherAssets
-9000000 USD
us-gaap Gain Loss On Sale Of Other Assets
GainLossOnSaleOfOtherAssets
-36000000 USD
us-gaap Share Based Compensation
ShareBasedCompensation
219000000 USD
us-gaap Share Based Compensation
ShareBasedCompensation
184000000 USD
mmc Acquisition Related Hedging Expense
AcquisitionRelatedHedgingExpense
0 USD
mmc Acquisition Related Hedging Expense
AcquisitionRelatedHedgingExpense
8000000 USD
us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
-77000000 USD
us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
84000000 USD
us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
14000000 USD
us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-30000000 USD
us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
-69000000 USD
us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
59000000 USD
us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
-144000000 USD
us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
-126000000 USD
us-gaap Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
-431000000 USD
us-gaap Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
-281000000 USD
us-gaap Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
150000000 USD
us-gaap Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
120000000 USD
mmc Pensionand Other Postretirement Benefit Contributions In Excessof Current Year Expense
PensionandOtherPostretirementBenefitContributionsInExcessofCurrentYearExpense
240000000 USD
mmc Pensionand Other Postretirement Benefit Contributions In Excessof Current Year Expense
PensionandOtherPostretirementBenefitContributionsInExcessofCurrentYearExpense
269000000 USD
us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
74000000 USD
us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
-149000000 USD
mmc Increase Decreasein Operating Lease Liabilities
IncreaseDecreaseinOperatingLeaseLiabilities
-254000000 USD
mmc Increase Decreasein Operating Lease Liabilities
IncreaseDecreaseinOperatingLeaseLiabilities
-240000000 USD
mmc Effectof Exchange Rateon Cashand Cash Equivalentsfrom Operating Activities
EffectofExchangeRateonCashandCashEquivalentsfromOperatingActivities
-10000000 USD
mmc Effectof Exchange Rateon Cashand Cash Equivalentsfrom Operating Activities
EffectofExchangeRateonCashandCashEquivalentsfromOperatingActivities
-70000000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
1999000000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
1291000000 USD
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
0 USD
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
300000000 USD
us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
0 USD
us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
325000000 USD
us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
1000000000 USD
us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
300000000 USD
us-gaap Proceeds From Issuance Of Debt
ProceedsFromIssuanceOfDebt
737000000 USD
us-gaap Proceeds From Issuance Of Debt
ProceedsFromIssuanceOfDebt
6459000000 USD
us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
1011000000 USD
us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
760000000 USD
us-gaap Payments Of Debt Extinguishment Costs
PaymentsOfDebtExtinguishmentCosts
0 USD
us-gaap Payments Of Debt Extinguishment Costs
PaymentsOfDebtExtinguishmentCosts
585000000 USD
us-gaap Payments To Acquire Additional Interest In Subsidiaries
PaymentsToAcquireAdditionalInterestInSubsidiaries
3000000 USD
us-gaap Payments To Acquire Additional Interest In Subsidiaries
PaymentsToAcquireAdditionalInterestInSubsidiaries
75000000 USD
us-gaap Payments For Derivative Instrument Financing Activities
PaymentsForDerivativeInstrumentFinancingActivities
0 USD
us-gaap Payments For Derivative Instrument Financing Activities
PaymentsForDerivativeInstrumentFinancingActivities
337000000 USD
us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
131000000 USD
us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
89000000 USD
us-gaap Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
98000000 USD
us-gaap Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
132000000 USD
mmc Paymentsfor Acquisitions Deferredand Contingent Consideration
PaymentsforAcquisitionsDeferredandContingentConsideration
125000000 USD
mmc Paymentsfor Acquisitions Deferredand Contingent Consideration
PaymentsforAcquisitionsDeferredandContingentConsideration
60000000 USD
us-gaap Payments To Minority Shareholders
PaymentsToMinorityShareholders
26000000 USD
us-gaap Payments To Minority Shareholders
PaymentsToMinorityShareholders
18000000 USD
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
702000000 USD
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
655000000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-163000000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
4337000000 USD
us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
278000000 USD
us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
284000000 USD
us-gaap Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
-102000000 USD
us-gaap Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
-193000000 USD
us-gaap Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
0 USD
us-gaap Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
91000000 USD
us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
3000000 USD
us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
4000000 USD
us-gaap Proceeds From Divestiture Of Businesses And Interests In Affiliates
ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates
93000000 USD
us-gaap Proceeds From Divestiture Of Businesses And Interests In Affiliates
ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates
225000000 USD
us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
559000000 USD
us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
5500000000 USD
us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
7000000 USD
us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
51000000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-646000000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-5504000000 USD
us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
43000000 USD
us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
23000000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
1233000000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
147000000 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1155000000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1066000000 USD
CY2020Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
2388000000 USD
CY2019Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1213000000 USD
CY2020Q3 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
8752000000 USD
CY2019Q3 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
7797000000 USD
CY2020Q3 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
8752000000 USD
CY2019Q3 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
7797000000 USD
CY2020Q3 mmc Common Stock Dividends Per Share Cash Declared
CommonStockDividendsPerShareCashDeclared
0.93
CY2019Q3 mmc Common Stock Dividends Per Share Cash Declared
CommonStockDividendsPerShareCashDeclared
0.455
mmc Common Stock Dividends Per Share Cash Declared
CommonStockDividendsPerShareCashDeclared
1.840
mmc Common Stock Dividends Per Share Cash Declared
CommonStockDividendsPerShareCashDeclared
1.740
us-gaap Nature Of Operations
NatureOfOperations
Nature of Operations <div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Marsh &amp; McLennan Companies, Inc. and its consolidated subsidiaries (the "Company") is a global professional services firm offering clients advice and solutions in risk, strategy and people. Its businesses include: Marsh, the insurance broker, intermediary and risk advisor; Guy Carpenter, the risk and reinsurance specialist; Mercer, the provider of HR and Investment related financial advice and services; and Oliver Wyman Group, the management, economic and brand consultancy. With 76,000 colleagues worldwide and annual revenue of $17 billion, the Company provides analysis, advice and transactional capabilities to clients in more than 130 countries.</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Business Update Related To COVID-19</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Coronavirus (COVID-19) pandemic has impacted essentially every geography in which the Company operates. Governments implemented various restrictions around the world, including closure of non-essential businesses, travel, shelter-in-place requirements for citizens and other restrictions.</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Through the end of the third quarter, the vast majority of the Company’s colleagues have continued working in a remote work environment, with minimal disruption to the Company as a whole and its ability to serve clients. The safety and well-being of our colleagues continues to be our first priority.</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As many countries have begun to re-open their economies, there are various conditions imposed by each jurisdiction, and new restrictions may be imposed based on local circumstances. The Company has re-opened offices in various locations around the world, while ensuring that it continues to adhere to guidelines and orders issued by national, state and local governments. The timing of office re-openings will vary based on the conditions and restrictions in each location, but it remains uncertain the extent to which colleagues will return to offices for the remainder of the year and into 2021. However, the Company expects it will continue its ability to service clients effectively while colleagues remain in a remote work environment.</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The ultimate extent of the COVID-19 impact to the Company will depend on numerous evolving factors and future developments that it is not able to predict. Factors that could adversely affect the Company’s financial statements related to the financial and operational impact of COVID-19 are outlined in “Item 1A - Risk Factors” in the Company’s Form 10-Q for the quarter ended March 31, 2020.</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">JLT Acquisition</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On April 1, 2019, the Company completed its acquisition (the "Transaction") of all of the outstanding shares of Jardine Lloyd Thompson Group plc ("JLT"), a public company organized under the laws of England and Wales. JLT's results of operations for the three and nine month periods ended September 30, 2020 are included in the Company's results of operations. The Company's results for the nine months ended September 30, 2019 do not reflect JLT’s results of operations for the three months ended March 31, 2019 and therefore may affect comparability.</span></div>
CY2020Q3 dei Entity Number Of Employees
EntityNumberOfEmployees
76000 numberOfColleague
CY2020Q3 us-gaap Number Of Countries In Which Entity Operates
NumberOfCountriesInWhichEntityOperates
130 country
CY2020Q3 us-gaap Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
247000000 USD
CY2019Q4 us-gaap Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
197000000 USD
mmc Equity Method Investment Lag Period
EquityMethodInvestmentLagPeriod
P3M
CY2020Q3 us-gaap Gain Loss On Investments
GainLossOnInvestments
-14000000 USD
us-gaap Gain Loss On Investments
GainLossOnInvestments
-47000000 USD
CY2019Q3 us-gaap Gain Loss On Investments
GainLossOnInvestments
7000000 USD
us-gaap Gain Loss On Investments
GainLossOnInvestments
20000000 USD
CY2019Q3 us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
4000000 USD
us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
10000000 USD
CY2020Q3 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.303
CY2019Q3 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.260
us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.260
us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.278
CY2019Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
86000000 USD
CY2020Q3 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
102000000 USD
CY2020Q3 us-gaap Contract With Customer Asset Net
ContractWithCustomerAssetNet
257000000 USD
CY2019Q4 us-gaap Contract With Customer Asset Net
ContractWithCustomerAssetNet
207000000 USD
CY2020Q3 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
648000000 USD
CY2019Q4 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
593000000 USD
us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
420000000 USD
us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
378000000 USD
us-gaap Contract With Customer Performance Obligation Satisfied In Previous Period
ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod
84000000 USD
us-gaap Contract With Customer Performance Obligation Satisfied In Previous Period
ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod
67000000 USD
CY2020Q3 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
123000000 USD
CY2020Q3 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
63000000 USD
CY2020Q3 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
27000000 USD
CY2020Q3 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
13000000 USD
CY2020Q3 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
3000000 USD
CY2020Q3 mmc Uncollected Premiumsand Claims Netof Related Payables
UncollectedPremiumsandClaimsNetofRelatedPayables
11400000000 USD
CY2019Q4 mmc Uncollected Premiumsand Claims Netof Related Payables
UncollectedPremiumsandClaimsNetofRelatedPayables
8900000000 USD
CY2020Q3 us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
320000000 USD
CY2019Q3 us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
306000000 USD
us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
1667000000 USD
us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
1377000000 USD
CY2020Q3 us-gaap Income Loss From Continuing Operations Attributable To Noncontrolling Entity
IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
4000000 USD
CY2019Q3 us-gaap Income Loss From Continuing Operations Attributable To Noncontrolling Entity
IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
3000000 USD
us-gaap Income Loss From Continuing Operations Attributable To Noncontrolling Entity
IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
25000000 USD
us-gaap Income Loss From Continuing Operations Attributable To Noncontrolling Entity
IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
26000000 USD
CY2020Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
316000000 USD
CY2019Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
303000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
1642000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
1351000000 USD
CY2020Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
507000000 shares
CY2019Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
506000000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
506000000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
506000000 shares
CY2020Q3 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
5000000 shares
CY2019Q3 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
5000000 shares
us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
5000000 shares
us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
5000000 shares
CY2020Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
512000000 shares
CY2019Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
511000000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
511000000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
511000000 shares
CY2020Q3 mmc Average Share Price Common Stock
AverageSharePriceCommonStock
114.64
CY2019Q3 mmc Average Share Price Common Stock
AverageSharePriceCommonStock
99.97
mmc Average Share Price Common Stock
AverageSharePriceCommonStock
107.64
mmc Average Share Price Common Stock
AverageSharePriceCommonStock
94.75
mmc Business Combination Consideration Transferred Assets Acquired
BusinessCombinationConsiderationTransferredAssetsAcquired
795000000 USD
mmc Business Combination Consideration Transferred Assets Acquired
BusinessCombinationConsiderationTransferredAssetsAcquired
8619000000 USD
mmc Payments For Previous Acquisition Contingent Consideration
PaymentsForPreviousAcquisitionContingentConsideration
23000000 USD
us-gaap Business Combination Consideration Transferred Liabilities Incurred
BusinessCombinationConsiderationTransferredLiabilitiesIncurred
73000000 USD
us-gaap Business Combination Consideration Transferred Liabilities Incurred
BusinessCombinationConsiderationTransferredLiabilitiesIncurred
2758000000 USD
mmc Business Combination Consideration Transferred Noncontrolling Interests Assumed
BusinessCombinationConsiderationTransferredNoncontrollingInterestsAssumed
0 USD
mmc Business Combination Consideration Transferred Noncontrolling Interests Assumed
BusinessCombinationConsiderationTransferredNoncontrollingInterestsAssumed
295000000 USD
mmc Business Combination Contingentand Deferred Consideration
BusinessCombinationContingentandDeferredConsideration
163000000 USD
mmc Business Combination Contingentand Deferred Consideration
BusinessCombinationContingentandDeferredConsideration
66000000 USD
us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
559000000 USD
us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
5500000000 USD
us-gaap Interest Paid Net
InterestPaidNet
437000000 USD
us-gaap Interest Paid Net
InterestPaidNet
387000000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
414000000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
442000000 USD
mmc Payments For Previous Acquisition Deferredand Contingent Consideration
PaymentsForPreviousAcquisitionDeferredandContingentConsideration
125000000 USD
mmc Payments For Previous Acquisition Deferred Consideration
PaymentsForPreviousAcquisitionDeferredConsideration
60000000 USD
mmc Payments For Previous Acquisition Contingent Consideration
PaymentsForPreviousAcquisitionContingentConsideration
65000000 USD
mmc Payments For Previous Acquisition Deferredand Contingent Consideration
PaymentsForPreviousAcquisitionDeferredandContingentConsideration
60000000 USD
mmc Payments For Previous Acquisition Deferred Consideration
PaymentsForPreviousAcquisitionDeferredConsideration
37000000 USD
us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
-22000000 USD
mmc Paymentof Contingent Consideration
PaymentofContingentConsideration
36000000 USD
us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
-26000000 USD
mmc Paymentof Contingent Consideration
PaymentofContingentConsideration
35000000 USD
us-gaap Stock Issued1
StockIssued1
217000000 USD
us-gaap Stock Issued1
StockIssued1
164000000 USD
us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
219000000 USD
us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
184000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
403000000 USD
CY2020Q3 us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
-31000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
434000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
-419000000 USD
CY2019Q3 us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
-15000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-404000000 USD
us-gaap Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
-184000000 USD
us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
-91000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-93000000 USD
us-gaap Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
-340000000 USD
us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
-56000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-284000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
500000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
3000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
497000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
-475000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
0 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-475000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
0 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
0 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax
0 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
-1000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
-1000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax
0 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-40000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
-9000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
-31000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-25000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
-6000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
-19000000 USD
CY2020Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Before Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentBeforeTax
0 USD
CY2020Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentTax
0 USD
CY2020Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Netof Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentNetofTax
0 USD
CY2019Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Before Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentBeforeTax
-8000000 USD
CY2019Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentTax
-2000000 USD
CY2019Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Netof Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentNetofTax
-6000000 USD
CY2020Q3 mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Before Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementBeforeTax
0 USD
CY2020Q3 mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementTax
0 USD
CY2020Q3 mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Netof Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementNetofTax
0 USD
CY2019Q3 mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Before Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementBeforeTax
2000000 USD
CY2019Q3 mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementTax
0 USD
CY2019Q3 mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Netof Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementNetofTax
2000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
40000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
9000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
31000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
18000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
3000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
15000000 USD
CY2020Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Before Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentBeforeTax
-113000000 USD
CY2020Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentTax
-19000000 USD
CY2020Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Netof Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentNetofTax
-94000000 USD
CY2019Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Before Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentBeforeTax
64000000 USD
CY2019Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentTax
8000000 USD
CY2019Q3 mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Netof Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentNetofTax
56000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
73000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
10000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
63000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
-82000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
-11000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-71000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
427000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
-7000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
434000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
-393000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
11000000 USD
CY2019Q3 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-404000000 USD
us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
-200000000 USD
us-gaap Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
-4000000 USD
us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-196000000 USD
us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
-366000000 USD
us-gaap Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
0 USD
us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-366000000 USD
us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
-1000000 USD
us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
0 USD
us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax
-1000000 USD
us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
-2000000 USD
us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
-1000000 USD
us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax
-1000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-120000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
-28000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
-92000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-77000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
-18000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
-59000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Before Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentBeforeTax
0 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentTax
0 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Netof Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentNetofTax
0 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Before Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentBeforeTax
-9000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentTax
-2000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Remeasurement Adjustment Netof Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentNetofTax
-7000000 USD
mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Before Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementBeforeTax
0 USD
mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementTax
0 USD
mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Netof Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementNetofTax
0 USD
mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Before Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementBeforeTax
6000000 USD
mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementTax
1000000 USD
mmc Other Comprehensive Income Loss Finalizationof Pensionand Other Postretirement Benefit Plan Valuation Effectof Settlement Netof Tax
OtherComprehensiveIncomeLossFinalizationofPensionandOtherPostretirementBenefitPlanValuationEffectofSettlementNetofTax
5000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
119000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
28000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
91000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
72000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
16000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
56000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Before Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentBeforeTax
17000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentTax
5000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Netof Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentNetofTax
12000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Before Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentBeforeTax
30000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentTax
4000000 USD
mmc Other Comprehensive Income Loss Pensionand Other Postretirement Benefit Plans Foreign Currency Transactionand Translation Adjustment Netof Tax
OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentNetofTax
26000000 USD
us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
-136000000 USD
us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
-33000000 USD
us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-103000000 USD
us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
-102000000 USD
us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
-20000000 USD
us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-82000000 USD
us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
-64000000 USD
us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
29000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-93000000 USD
us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
-264000000 USD
us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
20000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-284000000 USD
us-gaap Business Combination Consideration Transferred1
BusinessCombinationConsiderationTransferred1
742000000 USD
us-gaap Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
579000000 USD
us-gaap Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
12979000000 USD
CY2020Q3 us-gaap Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
316000000 USD
CY2019Q3 us-gaap Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
307000000 USD
us-gaap Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
1644000000 USD
mmc Business Combination Contingentand Deferred Consideration
BusinessCombinationContingentandDeferredConsideration
163000000 USD
us-gaap Finitelived Intangible Assets Acquired1
FinitelivedIntangibleAssetsAcquired1
280000000 USD
CY2020Q3 us-gaap Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
0 USD
us-gaap Business Combination Consideration Transferred1
BusinessCombinationConsiderationTransferred1
5925000000 USD
us-gaap Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
5859000000 USD
mmc Business Combination Contingentand Deferred Consideration
BusinessCombinationContingentandDeferredConsideration
66000000 USD
us-gaap Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
75000000 USD
CY2020Q3 us-gaap Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
3968000000 USD
CY2019Q3 us-gaap Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
4016000000 USD
us-gaap Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
12859000000 USD
us-gaap Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
1453000000 USD
CY2020Q3 us-gaap Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic
BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic
0.62
CY2019Q3 us-gaap Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic
BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic
0.61
us-gaap Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic
BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic
3.25
us-gaap Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic
BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic
2.87
CY2020Q3 us-gaap Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted
BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted
0.62
CY2019Q3 us-gaap Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted
BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted
0.60
us-gaap Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted
BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted
3.22
us-gaap Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted
BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted
2.84
CY2019Q4 us-gaap Goodwill
Goodwill
14671000000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
9599000000 USD
us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
462000000 USD
us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
4962000000 USD
us-gaap Goodwill Other Increase Decrease
GoodwillOtherIncreaseDecrease
99000000 USD
us-gaap Goodwill Other Increase Decrease
GoodwillOtherIncreaseDecrease
275000000 USD
CY2020Q3 us-gaap Goodwill
Goodwill
15034000000 USD
CY2019Q3 us-gaap Goodwill
Goodwill
14286000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
4025000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
1314000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
2711000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
3874000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
1100000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
2774000000 USD
us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
265000000 USD
us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
235000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year
FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
92000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
351000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
323000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
299000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
286000000 USD
CY2020Q3 mmc Finite Lived Intangible Asset Expected Amortizationafter Year Four
FiniteLivedIntangibleAssetExpectedAmortizationafterYearFour
1360000000 USD
CY2020Q3 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
2711000000 USD
mmc Fair Value Measurementwith Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Includedin Earnings Net
FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedinEarningsNet
8000000 USD
mmc Increase In Fair Value Of Contingent Consideration Due To5 Increase In Projections
IncreaseInFairValueOfContingentConsiderationDueTo5IncreaseInProjections
9000000 USD
mmc Decreasein Fair Valueof Contingent Consideration Dueto5 Decreasein Projections
DecreaseinFairValueofContingentConsiderationDueto5DecreaseinProjections
21000000 USD
CY2020Q3 us-gaap Equity Method Investments
EquityMethodInvestments
265000000 USD
CY2019Q4 us-gaap Equity Method Investments
EquityMethodInvestments
434000000 USD
CY2020Q3 us-gaap Equity Securities Fv Ni
EquitySecuritiesFvNi
58000000 USD
CY2019Q4 us-gaap Equity Securities Fv Ni
EquitySecuritiesFvNi
19000000 USD
CY2020Q3 us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
-16000000 USD
us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
-19000000 USD
CY2019Q3 us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
4000000 USD
us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
10000000 USD
CY2020Q3 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
43000000 USD
CY2019Q4 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
67000000 USD
mmc Net Investment Hedge Threshold Percentageofthe Equity Balance
NetInvestmentHedgeThresholdPercentageoftheEquityBalance
0.80
us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax
60000000 USD
CY2020Q3 us-gaap Operating Lease Cost
OperatingLeaseCost
99000000 USD
CY2019Q3 us-gaap Operating Lease Cost
OperatingLeaseCost
94000000 USD
us-gaap Operating Lease Cost
OperatingLeaseCost
288000000 USD
us-gaap Operating Lease Cost
OperatingLeaseCost
276000000 USD
CY2020Q3 us-gaap Short Term Lease Cost
ShortTermLeaseCost
1000000 USD
CY2019Q3 us-gaap Short Term Lease Cost
ShortTermLeaseCost
4000000 USD
us-gaap Short Term Lease Cost
ShortTermLeaseCost
3000000 USD
us-gaap Short Term Lease Cost
ShortTermLeaseCost
7000000 USD
CY2020Q3 us-gaap Variable Lease Cost
VariableLeaseCost
28000000 USD
CY2019Q3 us-gaap Variable Lease Cost
VariableLeaseCost
37000000 USD
us-gaap Variable Lease Cost
VariableLeaseCost
92000000 USD
us-gaap Variable Lease Cost
VariableLeaseCost
113000000 USD
CY2020Q3 us-gaap Sublease Income
SubleaseIncome
5000000 USD
CY2019Q3 us-gaap Sublease Income
SubleaseIncome
4000000 USD
us-gaap Sublease Income
SubleaseIncome
15000000 USD
us-gaap Sublease Income
SubleaseIncome
12000000 USD
CY2020Q3 us-gaap Lease Cost
LeaseCost
123000000 USD
CY2019Q3 us-gaap Lease Cost
LeaseCost
131000000 USD
us-gaap Lease Cost
LeaseCost
368000000 USD
us-gaap Lease Cost
LeaseCost
384000000 USD
us-gaap Operating Lease Payments
OperatingLeasePayments
306000000 USD
us-gaap Operating Lease Payments
OperatingLeasePayments
288000000 USD
us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
162000000 USD
us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
112000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
112000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
390000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
363000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
315000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
270000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
242000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
855000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
2547000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
310000000 USD
CY2020Q3 us-gaap Operating Lease Liability
OperatingLeaseLiability
2237000000 USD
CY2020Q3 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
335000000 USD
CY2020Q3 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1902000000 USD
CY2020Q3 us-gaap Operating Lease Liability
OperatingLeaseLiability
2237000000 USD
CY2020Q3 mmc Lessee Operating Lease Lease Notyet Commenced Amount
LesseeOperatingLeaseLeaseNotyetCommencedAmount
16000000 USD
CY2020Q3 us-gaap Lessee Operating Lease Lease Not Yet Commenced Term Of Contract1
LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1
P12M
CY2020Q3 us-gaap Long Term Debt Current
LongTermDebtCurrent
1216000000 USD
CY2019Q4 us-gaap Long Term Debt Current
LongTermDebtCurrent
1215000000 USD
CY2020Q3 us-gaap Debt Current
DebtCurrent
1216000000 USD
CY2019Q4 us-gaap Debt Current
DebtCurrent
1215000000 USD
CY2020Q3 us-gaap Long Term Debt
LongTermDebt
12748000000 USD
CY2019Q4 us-gaap Long Term Debt
LongTermDebt
11956000000 USD
CY2020Q3 us-gaap Long Term Debt Current
LongTermDebtCurrent
1216000000 USD
CY2019Q4 us-gaap Long Term Debt Current
LongTermDebtCurrent
1215000000 USD
CY2020Q3 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
11532000000 USD
CY2019Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
10741000000 USD
CY2020Q3 us-gaap Commercial Paper
CommercialPaper
0 USD
us-gaap Operating Lease Impairment Loss
OperatingLeaseImpairmentLoss
3000000 USD
CY2018Q4 us-gaap Restructuring Reserve
RestructuringReserve
112000000 USD
CY2019 us-gaap Restructuring Charges
RestructuringCharges
112000000 USD
CY2019 us-gaap Payments For Restructuring
PaymentsForRestructuring
112000000 USD
CY2019 us-gaap Restructuring Reserve Translation Adjustment
RestructuringReserveTranslationAdjustment
-10000000 USD
CY2019Q4 us-gaap Restructuring Reserve
RestructuringReserve
102000000 USD
us-gaap Restructuring Charges
RestructuringCharges
43000000 USD
us-gaap Payments For Restructuring
PaymentsForRestructuring
85000000 USD
us-gaap Restructuring Reserve Translation Adjustment
RestructuringReserveTranslationAdjustment
-2000000 USD
CY2020Q3 us-gaap Restructuring Reserve
RestructuringReserve
58000000 USD
us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
3100000 shares
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
300000000 USD
us-gaap Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
3400000 shares
us-gaap Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
4200000 shares
CY2020Q3 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
3968000000 USD
CY2020Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
540000000 USD
us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
12808000000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
2495000000 USD
CY2019Q3 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
3968000000 USD
CY2019Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
467000000 USD
us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
12388000000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
2085000000 USD
CY2020Q3 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
3968000000 USD
CY2019Q3 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
3968000000 USD
us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
12808000000 USD
us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
12388000000 USD
CY2020Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
2388000000 USD
CY2020Q3 mmc Fiduciary Liabilities Gross Noncurrent
FiduciaryLiabilitiesGrossNoncurrent
8765000000 USD
CY2020Q3 us-gaap Equity Securities Fv Ni
EquitySecuritiesFvNi
58000000 USD
CY2020Q3 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
43000000 USD
CY2020Q3 us-gaap Equity Method Investments
EquityMethodInvestments
265000000 USD

Files In Submission

Name View Source Status
0000062709-20-000053-index-headers.html Edgar Link pending
0000062709-20-000053-index.html Edgar Link pending
0000062709-20-000053.txt Edgar Link pending
0000062709-20-000053-xbrl.zip Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
MetaLinks.json Edgar Link pending
mmc-20200930.htm Edgar Link pending
mmc-20200930.xsd Edgar Link pending
mmc-20200930_cal.xml Edgar Link unprocessable
mmc-20200930_def.xml Edgar Link unprocessable
mmc-20200930_g1.jpg Edgar Link pending
mmc-20200930_htm.xml Edgar Link completed
mmc-20200930_lab.xml Edgar Link unprocessable
mmc-20200930_pre.xml Edgar Link unprocessable
mmc0930202010qex311.htm Edgar Link pending
mmc0930202010qex312.htm Edgar Link pending
mmc0930202010qex321.htm Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R71.htm Edgar Link pending
R72.htm Edgar Link pending
R73.htm Edgar Link pending
R74.htm Edgar Link pending
R75.htm Edgar Link pending
R76.htm Edgar Link pending
R77.htm Edgar Link pending
R78.htm Edgar Link pending
R79.htm Edgar Link pending
R8.htm Edgar Link pending
R80.htm Edgar Link pending
R81.htm Edgar Link pending
R9.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending