2024 Q1 Form 10-K Financial Statement
#000095017024018575 Filed on February 22, 2024
Income Statement
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
Revenue | $2.341B | $2.914B | $9.483B |
YoY Change | 4.32% | 7.05% | 6.96% |
Cost Of Revenue | |||
YoY Change | |||
Gross Profit | |||
YoY Change | |||
Gross Profit Margin | |||
Selling, General & Admin | $1.393B | $1.325B | $5.344B |
YoY Change | 2.5% | -0.53% | 0.62% |
% of Gross Profit | |||
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $59.00M | $118.0M | $505.0M |
YoY Change | -1.67% | -13.87% | 98.04% |
% of Gross Profit | |||
Operating Expenses | $1.918B | $1.976B | $7.664B |
YoY Change | 1.11% | 3.29% | 3.46% |
Operating Profit | $280.0M | $1.365B | |
YoY Change | -1.75% | 15.87% | |
Interest Expense | $64.00M | -$63.00M | -$235.0M |
YoY Change | 18.52% | 8.62% | -212.98% |
% of Operating Profit | 22.86% | -17.22% | |
Other Income/Expense, Net | $26.00M | $23.00M | $149.0M |
YoY Change | 4.0% | -66.67% | -48.26% |
Pretax Income | $242.0M | $739.0M | $1.279B |
YoY Change | -5.47% | 0.27% | 1.67% |
Income Tax | $48.00M | $116.0M | $215.0M |
% Of Pretax Income | 19.83% | 15.7% | 16.81% |
Net Earnings | $190.0M | $622.0M | $1.055B |
YoY Change | -6.4% | 5.78% | 4.56% |
Net Earnings / Revenue | 8.12% | 21.35% | 11.13% |
Basic Earnings Per Share | $1.84 | $10.01 | |
Diluted Earnings Per Share | $1.83 | $5.98 | $9.95 |
COMMON SHARES | |||
Basic Shares Outstanding | 102.5M | 103.3M | 105.0M |
Diluted Shares Outstanding | 104.0M | 106.0M |
Balance Sheet
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $1.893B | $1.424B | $1.424B |
YoY Change | 66.78% | 12.84% | 12.84% |
Cash & Equivalents | $1.893B | $1.424B | $1.424B |
Short-Term Investments | |||
Other Short-Term Assets | $10.32B | $9.437B | $9.437B |
YoY Change | 23897.67% | 17375.93% | -21.93% |
Inventory | |||
Prepaid Expenses | |||
Receivables | $2.430B | $2.572B | $2.572B |
Other Receivables | $0.00 | $0.00 | $0.00 |
Total Short-Term Assets | $14.64B | $13.43B | $13.43B |
YoY Change | -8.18% | -15.17% | -15.17% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $703.0M | $1.285B | $1.285B |
YoY Change | -2.77% | 78.97% | -1.46% |
Goodwill | $10.19B | $10.20B | |
YoY Change | -0.07% | 0.22% | |
Intangibles | $1.960B | $2.016B | |
YoY Change | -11.39% | -11.31% | |
Long-Term Investments | $88.00M | ||
YoY Change | -2.22% | ||
Other Assets | $1.606B | $2.161B | $2.161B |
YoY Change | 15.37% | 59.25% | 73.85% |
Total Long-Term Assets | $15.60B | $15.66B | $15.66B |
YoY Change | -2.29% | -1.74% | -1.74% |
TOTAL ASSETS | |||
Total Short-Term Assets | $14.64B | $13.43B | $13.43B |
Total Long-Term Assets | $15.60B | $15.66B | $15.66B |
Total Assets | $30.24B | $29.09B | $29.09B |
YoY Change | -5.23% | -8.43% | -8.43% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $1.106B | $1.073B | $1.073B |
YoY Change | 10.38% | 10.05% | 10.05% |
Accrued Expenses | $1.010B | $125.0M | $125.0M |
YoY Change | 0.8% | -90.98% | -90.98% |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $0.00 | $0.00 | $0.00 |
YoY Change | |||
Long-Term Debt Due | $650.0M | $650.0M | $650.0M |
YoY Change | 160.0% | 160.0% | 155.91% |
Total Short-Term Liabilities | $13.12B | $12.63B | $12.63B |
YoY Change | -11.89% | -14.54% | -14.54% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $5.307B | $4.567B | $4.567B |
YoY Change | 18.67% | 2.15% | 1.87% |
Other Long-Term Liabilities | $221.0M | $1.758B | $1.758B |
YoY Change | 10.5% | 695.48% | 5.52% |
Total Long-Term Liabilities | $7.551B | $6.325B | $6.325B |
YoY Change | 10.38% | -8.29% | 2.86% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $13.12B | $12.63B | $12.63B |
Total Long-Term Liabilities | $7.551B | $6.325B | $6.325B |
Total Liabilities | $20.67B | $19.57B | $19.57B |
YoY Change | -4.88% | -9.72% | -10.04% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $1.464B | $1.466B | |
YoY Change | -17.47% | -16.89% | |
Common Stock | $10.93B | $10.91B | |
YoY Change | 0.37% | 0.31% | |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | $0.00 | ||
YoY Change | -100.0% | ||
Treasury Stock Shares | |||
Shareholders Equity | $9.489B | $9.520B | $9.520B |
YoY Change | |||
Total Liabilities & Shareholders Equity | $30.24B | $29.09B | $29.09B |
YoY Change | -5.23% | -8.43% | -8.43% |
Cashflow Statement
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $190.0M | $622.0M | $1.055B |
YoY Change | -6.4% | 5.78% | 4.56% |
Depreciation, Depletion And Amortization | $59.00M | $118.0M | $505.0M |
YoY Change | -1.67% | -13.87% | 98.04% |
Cash From Operating Activities | $24.00M | $522.0M | $1.345B |
YoY Change | -82.09% | 39.2% | 65.64% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $60.00M | $60.00M | $242.0M |
YoY Change | -1.64% | 11.11% | 18.63% |
Acquisitions | $15.00M | $6.000M | |
YoY Change | 275.0% | -92.59% | |
Other Investing Activities | -$14.00M | $5.000M | -$843.0M |
YoY Change | -108.2% | ||
Cash From Investing Activities | -$74.00M | -$55.00M | -$1.085B |
YoY Change | 21.31% | -52.17% | 527.17% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | -$1.000B | ||
YoY Change | -128.38% | ||
Debt Paid & Issued, Net | $1.000M | $254.0M | |
YoY Change | 0.0% | -56.58% | |
Cash From Financing Activities | 1.556B | -472.0M | -1.200B |
YoY Change | -443.49% | 40.48% | -65.17% |
NET CHANGE | |||
Cash From Operating Activities | 24.00M | 522.0M | 1.345B |
Cash From Investing Activities | -74.00M | -55.00M | -1.085B |
Cash From Financing Activities | 1.556B | -472.0M | -1.200B |
Net Change In Cash | 1.506B | -5.000M | -940.0M |
YoY Change | -496.32% | -93.42% | -66.5% |
FREE CASH FLOW | |||
Cash From Operating Activities | $24.00M | $522.0M | $1.345B |
Capital Expenditures | $60.00M | $60.00M | $242.0M |
Free Cash Flow | -$36.00M | $462.0M | $1.103B |
YoY Change | -149.32% | 43.93% | 81.41% |
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CY2021 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
32.78 | |
CY2023 | us-gaap |
Profit Loss
ProfitLoss
|
1064000000 | |
CY2022 | us-gaap |
Profit Loss
ProfitLoss
|
1024000000 | |
CY2021 | us-gaap |
Profit Loss
ProfitLoss
|
4236000000 | |
CY2023 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
|
173000000 | |
CY2022 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
|
-499000000 | |
CY2021 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
|
-87000000 | |
CY2023 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
408000000 | |
CY2022 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-65000000 | |
CY2021 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-260000000 | |
CY2023 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
|
2000000 | |
CY2022 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
|
-2000000 | |
CY2021 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
|
2000000 | |
CY2023 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-233000000 | |
CY2022 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-436000000 | |
CY2021 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
175000000 | |
CY2023 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
831000000 | |
CY2022 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
588000000 | |
CY2021 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
4411000000 | |
CY2023 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
11000000 | |
CY2022 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
14000000 | |
CY2021 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
16000000 | |
CY2023 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
820000000 | |
CY2022 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
574000000 | |
CY2021 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
4395000000 | |
CY2023Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1424000000 | |
CY2022Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1262000000 | |
CY2023Q4 | us-gaap |
Funds Held For Clients
FundsHeldForClients
|
9073000000 | |
CY2022Q4 | us-gaap |
Funds Held For Clients
FundsHeldForClients
|
11772000000 | |
CY2023Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
2572000000 | |
CY2022Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
2387000000 | |
CY2023Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
364000000 | |
CY2022Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
414000000 | |
CY2023Q4 | us-gaap |
Assets Current
AssetsCurrent
|
13433000000 | |
CY2022Q4 | us-gaap |
Assets Current
AssetsCurrent
|
15835000000 | |
CY2023Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
720000000 | |
CY2023Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
1466000000 | |
CY2022Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
1764000000 | |
CY2023Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-2856000000 | |
CY2022Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-2621000000 | |
CY2023Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
0 | |
CY2022Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
718000000 | |
CY2023Q4 | us-gaap |
Goodwill
Goodwill
|
10195000000 | |
CY2022Q4 | us-gaap |
Goodwill
Goodwill
|
10173000000 | |
CY2023Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
2016000000 | |
CY2022Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
2273000000 | |
CY2023Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
565000000 | |
CY2022Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
586000000 | |
CY2023Q4 | us-gaap |
Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
|
588000000 | |
CY2022Q4 | us-gaap |
Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
|
827000000 | |
CY2023Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
1573000000 | |
CY2022Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
1357000000 | |
CY2023Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
15657000000 | |
CY2022Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
15934000000 | |
CY2023Q4 | us-gaap |
Assets
Assets
|
29090000000 | |
CY2022Q4 | us-gaap |
Assets
Assets
|
31769000000 | |
CY2023Q4 | wtw |
Fiduciary Liabilities Current
FiduciaryLiabilitiesCurrent
|
9073000000 | |
CY2022Q4 | wtw |
Fiduciary Liabilities Current
FiduciaryLiabilitiesCurrent
|
11772000000 | |
CY2023Q4 | wtw |
Deferred Revenue And Accrued Liabilities Current
DeferredRevenueAndAccruedLiabilitiesCurrent
|
2104000000 | |
CY2022Q4 | wtw |
Deferred Revenue And Accrued Liabilities Current
DeferredRevenueAndAccruedLiabilitiesCurrent
|
1915000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
650000000 | |
CY2022Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
250000000 | |
CY2023Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
125000000 | |
CY2022Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
126000000 | |
CY2023Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
678000000 | |
CY2022Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
716000000 | |
CY2023Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
12630000000 | |
CY2022Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
14779000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
4567000000 | |
CY2022Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
4471000000 | |
CY2023Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
563000000 | |
CY2022Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
480000000 | |
CY2023Q4 | us-gaap |
Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
|
542000000 | |
CY2022Q4 | us-gaap |
Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
|
748000000 | |
CY2023Q4 | wtw |
Provision For Liabilities Non Current
ProvisionForLiabilitiesNonCurrent
|
365000000 | |
CY2022Q4 | wtw |
Provision For Liabilities Non Current
ProvisionForLiabilitiesNonCurrent
|
357000000 | |
CY2023Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
592000000 | |
CY2022Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
620000000 | |
CY2023Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
238000000 | |
CY2022Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
221000000 | |
CY2023Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
6867000000 | |
CY2022Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
6897000000 | |
CY2023Q4 | us-gaap |
Liabilities
Liabilities
|
19497000000 | |
CY2022Q4 | us-gaap |
Liabilities
Liabilities
|
21676000000 | |
CY2023Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
10910000000 | |
CY2022Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
10876000000 | |
CY2022Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
3000000 | |
CY2023Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
9520000000 | |
CY2022Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
10016000000 | |
CY2023Q4 | us-gaap |
Minority Interest
MinorityInterest
|
73000000 | |
CY2022Q4 | us-gaap |
Minority Interest
MinorityInterest
|
77000000 | |
CY2023Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
9593000000 | |
CY2022Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
10093000000 | |
CY2023Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
29090000000 | |
CY2022Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
31769000000 | |
CY2023Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.000115 | |
CY2022Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.000115 | |
CY2023Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
1000000000 | |
CY2022Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
1000000000 | |
CY2023Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | |
CY2022Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | |
CY2023 | us-gaap |
Profit Loss
ProfitLoss
|
1064000000 | |
CY2022 | us-gaap |
Profit Loss
ProfitLoss
|
1024000000 | |
CY2021 | us-gaap |
Profit Loss
ProfitLoss
|
4236000000 | |
CY2023 | us-gaap |
Depreciation
Depreciation
|
242000000 | |
CY2022 | us-gaap |
Depreciation
Depreciation
|
255000000 | |
CY2021 | us-gaap |
Depreciation
Depreciation
|
281000000 | |
CY2023 | us-gaap |
Cost Of Goods And Services Sold Amortization
CostOfGoodsAndServicesSoldAmortization
|
263000000 | |
CY2022 | us-gaap |
Cost Of Goods And Services Sold Amortization
CostOfGoodsAndServicesSoldAmortization
|
312000000 | |
CY2021 | us-gaap |
Cost Of Goods And Services Sold Amortization
CostOfGoodsAndServicesSoldAmortization
|
369000000 | |
CY2023 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
0 | |
CY2022 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
81000000 | |
CY2021 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
0 | |
CY2023 | us-gaap |
Restructuring Reserve Settled Without Cash2
RestructuringReserveSettledWithoutCash2
|
38000000 | |
CY2022 | us-gaap |
Restructuring Reserve Settled Without Cash2
RestructuringReserveSettledWithoutCash2
|
71000000 | |
CY2021 | us-gaap |
Restructuring Reserve Settled Without Cash2
RestructuringReserveSettledWithoutCash2
|
0 | |
CY2023 | us-gaap |
Operating Lease Right Of Use Asset Amortization Expense
OperatingLeaseRightOfUseAssetAmortizationExpense
|
105000000 | |
CY2022 | us-gaap |
Operating Lease Right Of Use Asset Amortization Expense
OperatingLeaseRightOfUseAssetAmortizationExpense
|
120000000 | |
CY2021 | us-gaap |
Operating Lease Right Of Use Asset Amortization Expense
OperatingLeaseRightOfUseAssetAmortizationExpense
|
160000000 | |
CY2023 | us-gaap |
Pension And Other Postretirement Benefits Expense Reversal Of Expense Noncash
PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash
|
-26000000 | |
CY2022 | us-gaap |
Pension And Other Postretirement Benefits Expense Reversal Of Expense Noncash
PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash
|
-153000000 | |
CY2021 | us-gaap |
Pension And Other Postretirement Benefits Expense Reversal Of Expense Noncash
PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash
|
-168000000 | |
CY2023 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
6000000 | |
CY2022 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
13000000 | |
CY2021 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
19000000 | |
CY2023 | wtw |
Deferred Income Tax Expense Benefit Including Discontinued Operations
DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations
|
-109000000 | |
CY2022 | wtw |
Deferred Income Tax Expense Benefit Including Discontinued Operations
DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations
|
-50000000 | |
CY2021 | wtw |
Deferred Income Tax Expense Benefit Including Discontinued Operations
DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations
|
226000000 | |
CY2023 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
125000000 | |
CY2022 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
99000000 | |
CY2021 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
101000000 | |
CY2023 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
43000000 | |
CY2022 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
-59000000 | |
CY2021 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
2679000000 | |
CY2023 | us-gaap |
Foreign Currency Transaction Gain Loss Before Tax
ForeignCurrencyTransactionGainLossBeforeTax
|
-20000000 | |
CY2022 | us-gaap |
Foreign Currency Transaction Gain Loss Before Tax
ForeignCurrencyTransactionGainLossBeforeTax
|
137000000 | |
CY2021 | us-gaap |
Foreign Currency Transaction Gain Loss Before Tax
ForeignCurrencyTransactionGainLossBeforeTax
|
10000000 | |
CY2023 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-31000000 | |
CY2022 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-6000000 | |
CY2021 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
25000000 | |
CY2023 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
206000000 | |
CY2022 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
188000000 | |
CY2021 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
134000000 | |
CY2023 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
185000000 | |
CY2022 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
197000000 | |
CY2021 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
122000000 | |
CY2023 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
16000000 | |
CY2022 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-495000000 | |
CY2021 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-175000000 | |
CY2023 | wtw |
Increase Decrease In Provision For Liabilities
IncreaseDecreaseInProvisionForLiabilities
|
4000000 | |
CY2022 | wtw |
Increase Decrease In Provision For Liabilities
IncreaseDecreaseInProvisionForLiabilities
|
-8000000 | |
CY2021 | wtw |
Increase Decrease In Provision For Liabilities
IncreaseDecreaseInProvisionForLiabilities
|
-18000000 | |
CY2023 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
1345000000 | |
CY2022 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
812000000 | |
CY2021 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
2061000000 | |
CY2023 | wtw |
Payments To Acquire Fixed Assets And Software For Internal Use
PaymentsToAcquireFixedAssetsAndSoftwareForInternalUse
|
153000000 | |
CY2022 | wtw |
Payments To Acquire Fixed Assets And Software For Internal Use
PaymentsToAcquireFixedAssetsAndSoftwareForInternalUse
|
138000000 | |
CY2021 | wtw |
Payments To Acquire Fixed Assets And Software For Internal Use
PaymentsToAcquireFixedAssetsAndSoftwareForInternalUse
|
148000000 | |
CY2023 | us-gaap |
Payments To Develop Software
PaymentsToDevelopSoftware
|
89000000 | |
CY2022 | us-gaap |
Payments To Develop Software
PaymentsToDevelopSoftware
|
66000000 | |
CY2021 | us-gaap |
Payments To Develop Software
PaymentsToDevelopSoftware
|
53000000 | |
CY2023 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
6000000 | |
CY2022 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
81000000 | |
CY2021 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
47000000 | |
CY2023 | wtw |
Payments For Proceeds From Sale Of Operations
PaymentsForProceedsFromSaleOfOperations
|
-89000000 | |
CY2022 | wtw |
Payments For Proceeds From Sale Of Operations
PaymentsForProceedsFromSaleOfOperations
|
59000000 | |
CY2021 | wtw |
Payments For Proceeds From Sale Of Operations
PaymentsForProceedsFromSaleOfOperations
|
-4048000000 | |
CY2023 | us-gaap |
Cash Divested From Deconsolidation
CashDivestedFromDeconsolidation
|
922000000 | |
CY2022 | us-gaap |
Cash Divested From Deconsolidation
CashDivestedFromDeconsolidation
|
29000000 | |
CY2021 | us-gaap |
Cash Divested From Deconsolidation
CashDivestedFromDeconsolidation
|
1030000000 | |
CY2023 | us-gaap |
Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
|
4000000 | |
CY2022 | us-gaap |
Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
|
-200000000 | |
CY2021 | us-gaap |
Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
|
200000000 | |
CY2023 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-1085000000 | |
CY2022 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-173000000 | |
CY2021 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
2570000000 | |
CY2023 | us-gaap |
Proceeds From Issuance Of Senior Long Term Debt
ProceedsFromIssuanceOfSeniorLongTermDebt
|
748000000 | |
CY2022 | us-gaap |
Proceeds From Issuance Of Senior Long Term Debt
ProceedsFromIssuanceOfSeniorLongTermDebt
|
750000000 | |
CY2021 | us-gaap |
Proceeds From Issuance Of Senior Long Term Debt
ProceedsFromIssuanceOfSeniorLongTermDebt
|
0 | |
CY2023 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
7000000 | |
CY2022 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
5000000 | |
CY2021 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
4000000 | |
CY2023 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
254000000 | |
CY2022 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
585000000 | |
CY2021 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
1008000000 | |
CY2023 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
1000000000 | |
CY2022 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
3530000000 | |
CY2021 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
1627000000 | |
CY2023 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | |
CY2022 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
7000000 | |
CY2021 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
10000000 | |
CY2023 | wtw |
Net Payments Proceeds From Fiduciary Funds Held For Clients
NetPaymentsProceedsFromFiduciaryFundsHeldForClients
|
234000000 | |
CY2022 | wtw |
Net Payments Proceeds From Fiduciary Funds Held For Clients
NetPaymentsProceedsFromFiduciaryFundsHeldForClients
|
-354000000 | |
CY2021 | wtw |
Net Payments Proceeds From Fiduciary Funds Held For Clients
NetPaymentsProceedsFromFiduciaryFundsHeldForClients
|
40000000 | |
CY2023 | us-gaap |
Payment For Contingent Consideration Liability Financing Activities
PaymentForContingentConsiderationLiabilityFinancingActivities
|
12000000 | |
CY2022 | us-gaap |
Payment For Contingent Consideration Liability Financing Activities
PaymentForContingentConsiderationLiabilityFinancingActivities
|
22000000 | |
CY2021 | us-gaap |
Payment For Contingent Consideration Liability Financing Activities
PaymentForContingentConsiderationLiabilityFinancingActivities
|
19000000 | |
CY2023 | us-gaap |
Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
|
26000000 | |
CY2022 | us-gaap |
Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
|
34000000 | |
CY2021 | us-gaap |
Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
|
16000000 | |
CY2023 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
352000000 | |
CY2022 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
369000000 | |
CY2021 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
374000000 | |
CY2023 | us-gaap |
Proceeds From Payments To Minority Shareholders
ProceedsFromPaymentsToMinorityShareholders
|
-63000000 | |
CY2022 | us-gaap |
Proceeds From Payments To Minority Shareholders
ProceedsFromPaymentsToMinorityShareholders
|
-11000000 | |
CY2021 | us-gaap |
Proceeds From Payments To Minority Shareholders
ProceedsFromPaymentsToMinorityShareholders
|
-36000000 | |
CY2023 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-1200000000 | |
CY2022 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-3445000000 | |
CY2021 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-3114000000 | |
CY2023 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
-940000000 | |
CY2022 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
-2806000000 | |
CY2021 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
1517000000 | |
CY2023 | us-gaap |
Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
11000000 | |
CY2022 | us-gaap |
Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
-164000000 | |
CY2021 | us-gaap |
Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
-127000000 | |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
4721000000 | |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
7691000000 | |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
6301000000 | |
CY2023Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
3792000000 | |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
4721000000 | |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
7691000000 | |
CY2020Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
10932000000 | |
CY2021 | us-gaap |
Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
|
1627000000 | |
CY2021 | us-gaap |
Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest
NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest
|
4236000000 | |
CY2021 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
3.02 | |
CY2021 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
384000000 | |
CY2021 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
29000000 | |
CY2021 | wtw |
Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Nonredeemable Noncontrolling Interest
OtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNonredeemableNoncontrollingInterest
|
175000000 | |
CY2021 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
10000000 | |
CY2021 | wtw |
Adjustments To Additional Paid In Capital Sharebased Compensation And Net Settlements
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndNetSettlements
|
47000000 | |
CY2021 | us-gaap |
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent
ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent
|
59000000 | |
CY2021 | wtw |
Adjustments To Additional Paid In Capital Foreign Currency Translation Gain Loss
AdjustmentsToAdditionalPaidInCapitalForeignCurrencyTranslationGainLoss
|
7000000 | |
CY2021Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
13308000000 | |
CY2022 | us-gaap |
Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
|
3530000000 | |
CY2022 | us-gaap |
Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest
NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest
|
1024000000 | |
CY2022 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
3.28 | |
CY2022 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
360000000 | |
CY2022 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
10000000 | |
CY2022 | wtw |
Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Nonredeemable Noncontrolling Interest
OtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNonredeemableNoncontrollingInterest
|
-436000000 | |
CY2022 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
7000000 | |
CY2022 | wtw |
Adjustments To Additional Paid In Capital Sharebased Compensation And Net Settlements
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndNetSettlements
|
54000000 | |
CY2022 | us-gaap |
Noncontrolling Interest Increase From Business Combination
NoncontrollingInterestIncreaseFromBusinessCombination
|
27000000 | |
CY2022 | wtw |
Adjustments To Additional Paid In Capital Foreign Currency Translation Gain Loss
AdjustmentsToAdditionalPaidInCapitalForeignCurrencyTranslationGainLoss
|
9000000 | |
CY2022Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
10093000000 | |
CY2023 | us-gaap |
Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
|
1000000000 | |
CY2023 | us-gaap |
Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest
NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest
|
1064000000 | |
CY2023 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
3.36 | |
CY2023 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
353000000 | |
CY2023 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
13000000 | |
CY2023 | wtw |
Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Nonredeemable Noncontrolling Interest
OtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNonredeemableNoncontrollingInterest
|
-233000000 | |
CY2023 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
0 | |
CY2023 | wtw |
Adjustments To Additional Paid In Capital Sharebased Compensation And Net Settlements
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndNetSettlements
|
89000000 | |
CY2023 | us-gaap |
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent
ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent
|
49000000 | |
CY2023 | wtw |
Adjustments To Additional Paid In Capital Foreign Currency Translation Gain Loss
AdjustmentsToAdditionalPaidInCapitalForeignCurrencyTranslationGainLoss
|
-5000000 | |
CY2023Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
9593000000 | |
CY2023 | us-gaap |
Nature Of Operations
NatureOfOperations
|
<p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Note 1 — Nature of Operations</span><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Willis Towers Watson Public Limited Company is a leading global advisory, broking and solutions company that provides data-driven, insight-led solutions in the areas of people, risk and capital. The Company has </span><span style="font-size:10pt;font-family:Times New Roman;color:#000000;white-space:pre-wrap;min-width:fit-content;">48,000</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> colleagues serving more than </span><span style="font-size:10pt;font-family:Times New Roman;color:#000000;white-space:pre-wrap;min-width:fit-content;">140</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> countries and markets.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">We design and deliver solutions that manage risk, optimize benefits, cultivate talent and expand the power of capital to protect and strengthen institutions and individuals.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Our risk control services include strategic risk consulting (including providing actuarial analysis), a variety of due diligence services, the provision of practical on-site risk control services (such as health and safety or property loss control consulting), and analytical and advisory services (such as hazard modeling and climate risk quantification). We also assist our clients with managing incidents or crises when they occur. These services include contingency planning, security audits and product tampering plans.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">We help our clients enhance their business performance by delivering consulting services, technology and solutions that help them anticipate, identify and capitalize on emerging opportunities in human capital management, as well as offer investment advice to help them develop disciplined and efficient strategies to meet their investment goals.</span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">As an insurance broker, we act as an intermediary between our clients and insurance carriers by advising on their risk management requirements, helping them to determine the best means of managing risk and negotiating and placing insurance with insurance carriers through our global distribution network.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">We operate a private Medicare marketplace in the U.S. through which, along with our active employee marketplace, we help our clients move to a more sustainable economic model by capping and controlling the costs associated with healthcare benefits. We also provide direct-to-consumer sales of Medicare coverage.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">We are not an insurance company, </span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">and therefore we do not underwrite insurable risks for our own account. We help sharpen strategies, enhance organizational resilience, motivate workforces and maximize performance to uncover opportunities for sustainable success.</span></p> | |
CY2023Q4 | dei |
Entity Number Of Employees
EntityNumberOfEmployees
|
48000 | |
CY2023Q4 | us-gaap |
Number Of Countries In Which Entity Operates
NumberOfCountriesInWhichEntityOperates
|
140 | |
CY2023 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;text-decoration:underline;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Use of Estimates</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> — </span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">These consolidated financial statements conform to U.S. GAAP, which requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as well as disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Our estimates,</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">judgments </span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">and assumptions are continually evaluated based on available information and experience. Because of the use of estimates inherent in the financial reporting process, actual results could differ from those estimates. Estimates are used when accounting for revenue recognition and related costs, the selection of useful lives of fixed and intangible assets, impairment testing, valuation of billed and unbilled receivables from clients, discretionary compensation, income taxes, pension assumptions, incurred but not reported claims, legal reserves and goodwill and intangible assets.</span></p> | |
CY2023Q4 | wtw |
Percentage Of Lease Denominated In Major Currencies
PercentageOfLeaseDenominatedInMajorCurrencies
|
0.90 | |
CY2023 | us-gaap |
Number Of Reporting Units
NumberOfReportingUnits
|
7 | |
CY2023 | us-gaap |
Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
|
56000000 | |
CY2022 | us-gaap |
Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
|
111000000 | |
CY2021 | us-gaap |
Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
|
52000000 | |
CY2023 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Given1
OtherSignificantNoncashTransactionValueOfConsiderationGiven1
|
3000000 | |
CY2022 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Given1
OtherSignificantNoncashTransactionValueOfConsiderationGiven1
|
28000000 | |
CY2021 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Given1
OtherSignificantNoncashTransactionValueOfConsiderationGiven1
|
21000000 | |
CY2022Q1 | us-gaap |
Deconsolidation Gain Or Loss Amount
DeconsolidationGainOrLossAmount
|
-57000000 | |
CY2022 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
81000000 | |
CY2023 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
89000000 | |
CY2022 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
1000000 | |
CY2021 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
75000000 | |
CY2023 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
38000000 | |
CY2022 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
64000000 | |
CY2021 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
26000000 | |
CY2023 | us-gaap |
Noncash Or Part Noncash Divestiture Amount Of Consideration Received1
NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1
|
0 | |
CY2021 | us-gaap |
Noncash Or Part Noncash Divestiture Amount Of Consideration Received1
NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1
|
0 | |
CY2022 | us-gaap |
Noncash Or Part Noncash Divestiture Amount Of Consideration Received1
NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1
|
63000000 | |
CY2023 | wtw |
Reimbursable Expenses And Other
ReimbursableExpensesAndOther
|
102000000 | |
CY2023 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
9304000000 | |
CY2023 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
179000000 | |
CY2023 | us-gaap |
Revenues
Revenues
|
9483000000 | |
CY2022 | wtw |
Reimbursable Expenses And Other
ReimbursableExpensesAndOther
|
77000000 | |
CY2022 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
8726000000 | |
CY2022 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
140000000 | |
CY2022 | us-gaap |
Revenues
Revenues
|
8866000000 | |
CY2021 | wtw |
Reimbursable Expenses And Other
ReimbursableExpensesAndOther
|
43000000 | |
CY2021 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
8826000000 | |
CY2021 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
172000000 | |
CY2021 | us-gaap |
Revenues
Revenues
|
8998000000 | |
CY2023 | wtw |
Book Of Business Settlements
BookOfBusinessSettlements
|
26000000 | |
CY2022 | wtw |
Book Of Business Settlements
BookOfBusinessSettlements
|
71000000 | |
CY2021 | wtw |
Book Of Business Settlements
BookOfBusinessSettlements
|
134000000 | |
CY2023 | wtw |
Interest Income
InterestIncome
|
145000000 | |
CY2022 | wtw |
Interest Income
InterestIncome
|
55000000 | |
CY2021 | wtw |
Interest Income
InterestIncome
|
12000000 | |
CY2023 | us-gaap |
Other Income
OtherIncome
|
8000000 | |
CY2022 | us-gaap |
Other Income
OtherIncome
|
14000000 | |
CY2021 | us-gaap |
Other Income
OtherIncome
|
26000000 | |
CY2023 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
179000000 | |
CY2022 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
140000000 | |
CY2021 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
172000000 | |
CY2023Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
34000000 | |
CY2022Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
46000000 | |
CY2023Q4 | us-gaap |
Billed Contract Receivables
BilledContractReceivables
|
1581000000 | |
CY2022Q4 | us-gaap |
Billed Contract Receivables
BilledContractReceivables
|
1464000000 | |
CY2023Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
491000000 | |
CY2022Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
457000000 | |
CY2023Q4 | us-gaap |
Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
|
500000000 | |
CY2022Q4 | us-gaap |
Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
|
466000000 | |
CY2023Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
2572000000 | |
CY2022Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
2387000000 | |
CY2023Q4 | us-gaap |
Accounts Receivable Net Noncurrent
AccountsReceivableNetNoncurrent
|
19000000 | |
CY2022Q4 | us-gaap |
Accounts Receivable Net Noncurrent
AccountsReceivableNetNoncurrent
|
9000000 | |
CY2023Q4 | us-gaap |
Contract With Customer Asset Net Noncurrent
ContractWithCustomerAssetNetNoncurrent
|
909000000 | |
CY2022Q4 | us-gaap |
Contract With Customer Asset Net Noncurrent
ContractWithCustomerAssetNetNoncurrent
|
745000000 | |
CY2023Q4 | us-gaap |
Contract With Customer Liability
ContractWithCustomerLiability
|
677000000 | |
CY2022Q4 | us-gaap |
Contract With Customer Liability
ContractWithCustomerLiability
|
646000000 | |
CY2022 | wtw |
Capitalized Contract Cost Disposals
CapitalizedContractCostDisposals
|
0 | |
CY2021 | wtw |
Capitalized Contract Cost Disposals
CapitalizedContractCostDisposals
|
4000000 | |
CY2023 | us-gaap |
Capitalized Contract Cost Impairment Loss
CapitalizedContractCostImpairmentLoss
|
0 | |
CY2023 | us-gaap |
Contract With Customer Performance Obligation Satisfied In Previous Period
ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod
|
32000000 | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
|
P1Y | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
|
P1Y | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
|
P1Y | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
490000000 | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
371000000 | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
460000000 | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
1321000000 | |
CY2022Q4 | us-gaap |
Capitalized Contract Cost Net
CapitalizedContractCostNet
|
197000000 | |
CY2021Q4 | us-gaap |
Capitalized Contract Cost Net
CapitalizedContractCostNet
|
189000000 | |
CY2020Q4 | us-gaap |
Capitalized Contract Cost Net
CapitalizedContractCostNet
|
191000000 | |
CY2023 | wtw |
Capitalized Contract Cost Additions
CapitalizedContractCostAdditions
|
458000000 | |
CY2022 | wtw |
Capitalized Contract Cost Additions
CapitalizedContractCostAdditions
|
421000000 | |
CY2021 | wtw |
Capitalized Contract Cost Additions
CapitalizedContractCostAdditions
|
454000000 | |
CY2023 | us-gaap |
Capitalized Contract Cost Amortization
CapitalizedContractCostAmortization
|
441000000 | |
CY2022 | us-gaap |
Capitalized Contract Cost Amortization
CapitalizedContractCostAmortization
|
407000000 | |
CY2021 | us-gaap |
Capitalized Contract Cost Amortization
CapitalizedContractCostAmortization
|
451000000 | |
CY2023 | wtw |
Capitalized Contract Cost Disposals
CapitalizedContractCostDisposals
|
0 | |
CY2022 | us-gaap |
Capitalized Contract Cost Impairment Loss
CapitalizedContractCostImpairmentLoss
|
0 | |
CY2021 | us-gaap |
Capitalized Contract Cost Impairment Loss
CapitalizedContractCostImpairmentLoss
|
1000000 | |
CY2023 | wtw |
Capitalized Contract Cost Foreign Exchange Translation Gain Loss
CapitalizedContractCostForeignExchangeTranslationGainLoss
|
4000000 | |
CY2022 | wtw |
Capitalized Contract Cost Foreign Exchange Translation Gain Loss
CapitalizedContractCostForeignExchangeTranslationGainLoss
|
-6000000 | |
CY2021 | wtw |
Capitalized Contract Cost Foreign Exchange Translation Gain Loss
CapitalizedContractCostForeignExchangeTranslationGainLoss
|
0 | |
CY2023Q4 | us-gaap |
Capitalized Contract Cost Net
CapitalizedContractCostNet
|
218000000 | |
CY2022Q4 | us-gaap |
Capitalized Contract Cost Net
CapitalizedContractCostNet
|
197000000 | |
CY2021Q4 | us-gaap |
Capitalized Contract Cost Net
CapitalizedContractCostNet
|
189000000 | |
CY2023 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
2 | |
CY2023 | us-gaap |
Revenues
Revenues
|
9483000000 | |
CY2022 | us-gaap |
Revenues
Revenues
|
8866000000 | |
CY2021 | us-gaap |
Revenues
Revenues
|
8998000000 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
1279000000 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
1258000000 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
2692000000 | |
CY2023 | us-gaap |
Revenues
Revenues
|
9483000000 | |
CY2022 | us-gaap |
Revenues
Revenues
|
8866000000 | |
CY2021 | us-gaap |
Revenues
Revenues
|
8998000000 | |
CY2023Q4 | us-gaap |
Noncurrent Assets
NoncurrentAssets
|
1285000000 | |
CY2022Q4 | us-gaap |
Noncurrent Assets
NoncurrentAssets
|
1304000000 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
1279000000 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
1258000000 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
2692000000 | |
CY2023 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
106000000 | |
CY2022 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
103000000 | |
CY2021 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
79000000 | |
CY2023 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
41000000 | |
CY2022 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
39000000 | |
CY2021 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
25000000 | |
CY2023 | us-gaap |
Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
|
40000000 | |
CY2022 | us-gaap |
Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
|
13000000 | |
CY2021 | us-gaap |
Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
|
33000000 | |
CY2023 | wtw |
Current Other Jurisdictions Tax Expense Benefit
CurrentOtherJurisdictionsTaxExpenseBenefit
|
137000000 | |
CY2022 | wtw |
Current Other Jurisdictions Tax Expense Benefit
CurrentOtherJurisdictionsTaxExpenseBenefit
|
93000000 | |
CY2021 | wtw |
Current Other Jurisdictions Tax Expense Benefit
CurrentOtherJurisdictionsTaxExpenseBenefit
|
303000000 | |
CY2023 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
324000000 | |
CY2022 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
248000000 | |
CY2021 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
440000000 | |
CY2023 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-20000000 | |
CY2022 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-52000000 | |
CY2021 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
41000000 | |
CY2023 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-15000000 | |
CY2022 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
5000000 | |
CY2021 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-3000000 | |
CY2023 | us-gaap |
Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
|
-63000000 | |
CY2022 | us-gaap |
Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
|
7000000 | |
CY2021 | us-gaap |
Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
|
65000000 | |
CY2023 | wtw |
Deferred Other Jurisdictions Tax Expense Benefit
DeferredOtherJurisdictionsTaxExpenseBenefit
|
-11000000 | |
CY2022 | wtw |
Deferred Other Jurisdictions Tax Expense Benefit
DeferredOtherJurisdictionsTaxExpenseBenefit
|
-14000000 | |
CY2021 | wtw |
Deferred Other Jurisdictions Tax Expense Benefit
DeferredOtherJurisdictionsTaxExpenseBenefit
|
-7000000 | |
CY2023 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-109000000 | |
CY2022 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-54000000 | |
CY2021 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
96000000 | |
CY2023 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
215000000 | |
CY2022 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
194000000 | |
CY2021 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
536000000 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
1279000000 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
1258000000 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
2692000000 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2021 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2023 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
269000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
264000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
565000000 | |
CY2023 | us-gaap |
Income Tax Reconciliation Nondeductible Expense
IncomeTaxReconciliationNondeductibleExpense
|
24000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation Nondeductible Expense
IncomeTaxReconciliationNondeductibleExpense
|
19000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation Nondeductible Expense
IncomeTaxReconciliationNondeductibleExpense
|
15000000 | |
CY2023 | wtw |
Effective Income Tax Rate Reconciliation Net Adjustments On Acquisition Costs
EffectiveIncomeTaxRateReconciliationNetAdjustmentsOnAcquisitionCosts
|
1000000 | |
CY2022 | wtw |
Effective Income Tax Rate Reconciliation Net Adjustments On Acquisition Costs
EffectiveIncomeTaxRateReconciliationNetAdjustmentsOnAcquisitionCosts
|
4000000 | |
CY2021 | wtw |
Effective Income Tax Rate Reconciliation Net Adjustments On Acquisition Costs
EffectiveIncomeTaxRateReconciliationNetAdjustmentsOnAcquisitionCosts
|
-13000000 | |
CY2023 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
-10000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
1000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
36000000 | |
CY2023 | wtw |
Effective Income Tax Rate Reconciliation Effect Of Foreign Exchange And Other Differences
EffectiveIncomeTaxRateReconciliationEffectOfForeignExchangeAndOtherDifferences
|
-1000000 | |
CY2022 | wtw |
Effective Income Tax Rate Reconciliation Effect Of Foreign Exchange And Other Differences
EffectiveIncomeTaxRateReconciliationEffectOfForeignExchangeAndOtherDifferences
|
-28000000 | |
CY2021 | wtw |
Effective Income Tax Rate Reconciliation Effect Of Foreign Exchange And Other Differences
EffectiveIncomeTaxRateReconciliationEffectOfForeignExchangeAndOtherDifferences
|
0 | |
CY2023 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
2000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-1000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-2000000 | |
CY2023 | us-gaap |
Income Tax Reconciliation Deductions Other
IncomeTaxReconciliationDeductionsOther
|
94000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation Deductions Other
IncomeTaxReconciliationDeductionsOther
|
84000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation Deductions Other
IncomeTaxReconciliationDeductionsOther
|
84000000 | |
CY2023 | us-gaap |
Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
|
6000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
|
1000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
|
62000000 | |
CY2023 | us-gaap |
Income Tax Reconciliation Foreign Income Tax Rate Differential
IncomeTaxReconciliationForeignIncomeTaxRateDifferential
|
-8000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation Foreign Income Tax Rate Differential
IncomeTaxReconciliationForeignIncomeTaxRateDifferential
|
-20000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation Foreign Income Tax Rate Differential
IncomeTaxReconciliationForeignIncomeTaxRateDifferential
|
24000000 | |
CY2023 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
26000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
42000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
23000000 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation Gilti Amount
EffectiveIncomeTaxRateReconciliationGiltiAmount
|
9000000 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation Gilti Amount
EffectiveIncomeTaxRateReconciliationGiltiAmount
|
10000000 | |
CY2021 | us-gaap |
Effective Income Tax Rate Reconciliation Gilti Amount
EffectiveIncomeTaxRateReconciliationGiltiAmount
|
4000000 | |
CY2023 | wtw |
Effective Income Tax Rate Reconciliation On Subpart F Amount
EffectiveIncomeTaxRateReconciliationOnSubpartFAmount
|
5000000 | |
CY2022 | wtw |
Effective Income Tax Rate Reconciliation On Subpart F Amount
EffectiveIncomeTaxRateReconciliationOnSubpartFAmount
|
6000000 | |
CY2021 | wtw |
Effective Income Tax Rate Reconciliation On Subpart F Amount
EffectiveIncomeTaxRateReconciliationOnSubpartFAmount
|
6000000 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation Beat Amount
EffectiveIncomeTaxRateReconciliationBeatAmount
|
-13000000 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation Beat Amount
EffectiveIncomeTaxRateReconciliationBeatAmount
|
-24000000 | |
CY2021 | us-gaap |
Effective Income Tax Rate Reconciliation Beat Amount
EffectiveIncomeTaxRateReconciliationBeatAmount
|
22000000 | |
CY2023 | wtw |
Tax On Unremitted Earnings Net Of Foreign Tax Credits
TaxOnUnremittedEarningsNetOfForeignTaxCredits
|
12000000 | |
CY2022 | wtw |
Tax On Unremitted Earnings Net Of Foreign Tax Credits
TaxOnUnremittedEarningsNetOfForeignTaxCredits
|
14000000 | |
CY2021 | wtw |
Tax On Unremitted Earnings Net Of Foreign Tax Credits
TaxOnUnremittedEarningsNetOfForeignTaxCredits
|
0 | |
CY2023 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-1000000 | |
CY2022 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-8000000 | |
CY2021 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
2000000 | |
CY2023 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
215000000 | |
CY2022 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
194000000 | |
CY2021 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
536000000 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther
|
76000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther
|
69000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Asset Interest Carryforward
DeferredTaxAssetInterestCarryforward
|
276000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Asset Interest Carryforward
DeferredTaxAssetInterestCarryforward
|
174000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
44000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
44000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Capital Loss Carryforwards
DeferredTaxAssetsCapitalLossCarryforwards
|
1000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Capital Loss Carryforwards
DeferredTaxAssetsCapitalLossCarryforwards
|
1000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
|
150000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
|
85000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent
|
120000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent
|
125000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
93000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
97000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
25000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
18000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Derivative Instruments
DeferredTaxAssetsDerivativeInstruments
|
2000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Derivative Instruments
DeferredTaxAssetsDerivativeInstruments
|
4000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
787000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
617000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
35000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
28000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
752000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
589000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
604000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
679000000 | |
CY2023Q4 | wtw |
Deferred Tax Liabilities Operating Lease Right Of Use Assets
DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets
|
103000000 | |
CY2022Q4 | wtw |
Deferred Tax Liabilities Operating Lease Right Of Use Assets
DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets
|
106000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
24000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
44000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Prepaid Expenses
DeferredTaxLiabilitiesPrepaidExpenses
|
129000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Prepaid Expenses
DeferredTaxLiabilitiesPrepaidExpenses
|
142000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Tax Deferred Income
DeferredTaxLiabilitiesTaxDeferredIncome
|
319000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Tax Deferred Income
DeferredTaxLiabilitiesTaxDeferredIncome
|
262000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Undistributed Foreign Earnings
DeferredTaxLiabilitiesUndistributedForeignEarnings
|
29000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Undistributed Foreign Earnings
DeferredTaxLiabilitiesUndistributedForeignEarnings
|
36000000 | |
CY2023Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
1208000000 | |
CY2022Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
1269000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
456000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
680000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
456000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
680000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
752000000 | |
CY2023 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
7000000 | |
CY2022 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-14000000 | |
CY2021 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-42000000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
35000000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
28000000 | |
CY2023 | us-gaap |
Undistributed Earnings
UndistributedEarnings
|
17900000000 | |
CY2023Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
51000000 | |
CY2022Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
47000000 | |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
43000000 | |
CY2020Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
50000000 | |
CY2023 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
13000000 | |
CY2022 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
16000000 | |
CY2021 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
0 | |
CY2023 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
9000000 | |
CY2022 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
2000000 | |
CY2021 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
0 | |
CY2023 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
3000000 | |
CY2022 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
0 | |
CY2021 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
0 | |
CY2023 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | |
CY2022 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
1000000 | |
CY2021 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | |
CY2023 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
4000000 | |
CY2022 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
6000000 | |
CY2021 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
6000000 | |
CY2023 | wtw |
Unrecognized Tax Benefits Other Increase Decrease
UnrecognizedTaxBenefitsOtherIncreaseDecrease
|
1000000 | |
CY2022 | wtw |
Unrecognized Tax Benefits Other Increase Decrease
UnrecognizedTaxBenefitsOtherIncreaseDecrease
|
-3000000 | |
CY2021 | wtw |
Unrecognized Tax Benefits Other Increase Decrease
UnrecognizedTaxBenefitsOtherIncreaseDecrease
|
-1000000 | |
CY2023Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
51000000 | |
CY2022Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
47000000 | |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
43000000 | |
CY2023Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
-3000000 | |
CY2022Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
-3000000 | |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
-3000000 | |
CY2023Q4 | us-gaap |
Unrecognized Tax Benefits Interest On Income Taxes Accrued
UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
|
6000000 | |
CY2022Q4 | us-gaap |
Unrecognized Tax Benefits Interest On Income Taxes Accrued
UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
|
5000000 | |
CY2021Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
2092000000 | |
CY2022 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
198000000 | |
CY2022 | wtw |
Property Plant And Equipment Acquisitions
PropertyPlantAndEquipmentAcquisitions
|
1000000 | |
CY2022 | us-gaap |
Property Plant And Equipment Disposals
PropertyPlantAndEquipmentDisposals
|
207000000 | |
CY2022 | wtw |
Property Plant And Equipment Increase Decrease Due To Foreign Exchange
PropertyPlantAndEquipmentIncreaseDecreaseDueToForeignExchange
|
-97000000 | |
CY2022Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
1987000000 | |
CY2023 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
251000000 | |
CY2023 | us-gaap |
Property Plant And Equipment Disposals
PropertyPlantAndEquipmentDisposals
|
216000000 | |
CY2023 | wtw |
Property Plant And Equipment Increase Decrease Due To Foreign Exchange
PropertyPlantAndEquipmentIncreaseDecreaseDueToForeignExchange
|
49000000 | |
CY2023Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
2071000000 | |
CY2021Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
1241000000 | |
CY2022 | wtw |
Depreciation Expense Excluding Abandonment Of Internally Developed Software Asset
DepreciationExpenseExcludingAbandonmentOfInternallyDevelopedSoftwareAsset
|
255000000 | |
CY2022 | us-gaap |
Accumulated Depreciation Depletion And Amortization Sale Of Property Plant And Equipment1
AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1
|
170000000 | |
CY2022 | wtw |
Accumulated Depreciation Depletion And Amortization Foreign Exchange
AccumulatedDepreciationDepletionAndAmortizationForeignExchange
|
-57000000 | |
CY2022Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
1269000000 | |
CY2023 | wtw |
Depreciation Expense Excluding Abandonment Of Internally Developed Software Asset
DepreciationExpenseExcludingAbandonmentOfInternallyDevelopedSoftwareAsset
|
242000000 | |
CY2023 | us-gaap |
Accumulated Depreciation Depletion And Amortization Sale Of Property Plant And Equipment1
AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1
|
189000000 | |
CY2023 | wtw |
Accumulated Depreciation Depletion And Amortization Foreign Exchange
AccumulatedDepreciationDepletionAndAmortizationForeignExchange
|
29000000 | |
CY2023Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
1351000000 | |
CY2022Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
718000000 | |
CY2023Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
720000000 | |
CY2023Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
|
26000000 | |
CY2022Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
|
26000000 | |
CY2023Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization
|
23000000 | |
CY2022Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization
|
22000000 | |
CY2023Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
|
3000000 | |
CY2022Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
|
4000000 | |
CY2021Q4 | us-gaap |
Goodwill Gross
GoodwillGross
|
10675000000 | |
CY2021Q4 | us-gaap |
Goodwill Impaired Accumulated Impairment Loss
GoodwillImpairedAccumulatedImpairmentLoss
|
492000000 | |
CY2021Q4 | us-gaap |
Goodwill
Goodwill
|
10183000000 | |
CY2022 | us-gaap |
Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
|
104000000 | |
CY2022 | us-gaap |
Goodwill Written Off Related To Sale Of Business Unit
GoodwillWrittenOffRelatedToSaleOfBusinessUnit
|
18000000 | |
CY2022 | us-gaap |
Goodwill Foreign Currency Translation Gain Loss
GoodwillForeignCurrencyTranslationGainLoss
|
96000000 | |
CY2022Q4 | us-gaap |
Goodwill Gross
GoodwillGross
|
10665000000 | |
CY2022Q4 | us-gaap |
Goodwill Impaired Accumulated Impairment Loss
GoodwillImpairedAccumulatedImpairmentLoss
|
492000000 | |
CY2022Q4 | us-gaap |
Goodwill
Goodwill
|
10173000000 | |
CY2023 | us-gaap |
Goodwill Written Off Related To Sale Of Business Unit
GoodwillWrittenOffRelatedToSaleOfBusinessUnit
|
21000000 | |
CY2023 | us-gaap |
Goodwill Foreign Currency Translation Gain Loss
GoodwillForeignCurrencyTranslationGainLoss
|
-43000000 | |
CY2023Q4 | us-gaap |
Goodwill Gross
GoodwillGross
|
10687000000 | |
CY2023Q4 | us-gaap |
Goodwill Impaired Accumulated Impairment Loss
GoodwillImpairedAccumulatedImpairmentLoss
|
492000000 | |
CY2023Q4 | us-gaap |
Goodwill
Goodwill
|
10195000000 | |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
5677000000 | |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
3122000000 | |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
2555000000 | |
CY2022 | us-gaap |
Finitelived Intangible Assets Acquired1
FinitelivedIntangibleAssetsAcquired1
|
72000000 | |
CY2022 | wtw |
Finite Lived Intangible Assets Disposed
FiniteLivedIntangibleAssetsDisposed
|
6000000 | |
CY2022 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
312000000 | |
CY2022 | us-gaap |
Finite Lived Intangible Assets Foreign Currency Translation Gain Loss
FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss
|
36000000 | |
CY2022Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
5621000000 | |
CY2022Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
3348000000 | |
CY2022Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
2273000000 | |
CY2023 | us-gaap |
Finitelived Intangible Assets Acquired1
FinitelivedIntangibleAssetsAcquired1
|
7000000 | |
CY2023 | wtw |
Finite Lived Intangible Assets Disposed
FiniteLivedIntangibleAssetsDisposed
|
13000000 | |
CY2023 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
263000000 | |
CY2023 | us-gaap |
Finite Lived Intangible Assets Foreign Currency Translation Gain Loss
FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss
|
-12000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
5638000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
3622000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
2016000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Asset Useful Life
FiniteLivedIntangibleAssetUsefulLife
|
P11Y8M12D | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
231000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
211000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
202000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
198000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
194000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense After Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
|
980000000 | |
CY2023Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
2016000000 | |
CY2023 | us-gaap |
Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred
DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred
|
1000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
650000000 | |
CY2022Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
250000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
4567000000 | |
CY2022Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
4471000000 | |
CY2019Q3 | us-gaap |
Debt Instrument Term
DebtInstrumentTerm
|
P1Y | |
CY2018Q3 | wtw |
Debt Instrument Interest Accrual Date Description
DebtInstrumentInterestAccrualDateDescription
|
Interest has accrued on both the 2028 senior notes and 2048 senior notes from September 10, 2018 and is paid in cash on March 15 and September 15 of each year. | |
CY2018Q3 | us-gaap |
Proceeds From Debt Net Of Issuance Costs
ProceedsFromDebtNetOfIssuanceCosts
|
989000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
864000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
206000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
737000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
913000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
739000000 | |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
3976000000 | |
CY2023Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
7435000000 | |
CY2023 | us-gaap |
Interest Expense
InterestExpense
|
235000000 | |
CY2022 | us-gaap |
Interest Expense
InterestExpense
|
208000000 | |
CY2021 | us-gaap |
Interest Expense
InterestExpense
|
211000000 | |
CY2022Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
|
40000000 | |
CY2023 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
|
0 | |
CY2023 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
|
15000000 | |
CY2023 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
|
6000000 | |
CY2023 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome
|
0 | |
CY2023Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
|
31000000 | |
CY2023 | wtw |
Fair Value Level Three Transfers Amount
FairValueLevelThreeTransfersAmount
|
0 | |
CY2022 | wtw |
Fair Value Level Three Transfers Amount
FairValueLevelThreeTransfersAmount
|
0 | |
CY2023 | wtw |
Defined Benefit Plans Percentage Of Obligation From Plans
DefinedBenefitPlansPercentageOfObligationFromPlans
|
0.98 | |
CY2023Q4 | wtw |
Defined Benefit Plan Net Assets Held In Investments
DefinedBenefitPlanNetAssetsHeldInInvestments
|
7545000000 | |
CY2022Q4 | wtw |
Defined Benefit Plan Net Assets Held In Investments
DefinedBenefitPlanNetAssetsHeldInInvestments
|
7400000000 | |
CY2023Q4 | wtw |
Defined Benefit Plan Net Payable Receivable For Investments Purchased
DefinedBenefitPlanNetPayableReceivableForInvestmentsPurchased
|
0 | |
CY2022Q4 | wtw |
Defined Benefit Plan Net Payable Receivable For Investments Purchased
DefinedBenefitPlanNetPayableReceivableForInvestmentsPurchased
|
2000000 | |
CY2023Q4 | wtw |
Defined Benefit Plan Fair Value Of Plan Assets Liabilities Reconciliation
DefinedBenefitPlanFairValueOfPlanAssetsLiabilitiesReconciliation
|
7545000000 | |
CY2022Q4 | wtw |
Defined Benefit Plan Fair Value Of Plan Assets Liabilities Reconciliation
DefinedBenefitPlanFairValueOfPlanAssetsLiabilitiesReconciliation
|
7402000000 | |
CY2023Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months
DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
|
442000000 | |
CY2023Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Two
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
|
440000000 | |
CY2023Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Three
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
|
456000000 | |
CY2023Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Four
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
|
459000000 | |
CY2023Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Five
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
|
462000000 | |
CY2023Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter
DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
|
2334000000 | |
CY2023Q4 | wtw |
Defined Benefit Plan Expected Future Benefit Payments
DefinedBenefitPlanExpectedFutureBenefitPayments
|
4593000000 | |
CY2023 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
158000000 | |
CY2022 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
148000000 | |
CY2021 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
155000000 | |
CY2023Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
565000000 | |
CY2023Q4 | us-gaap |
Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
|
3000000 | |
CY2023Q4 | wtw |
Lease Right Of Use Asset
LeaseRightOfUseAsset
|
568000000 | |
CY2022Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
586000000 | |
CY2022Q4 | us-gaap |
Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
|
4000000 | |
CY2022Q4 | wtw |
Lease Right Of Use Asset
LeaseRightOfUseAsset
|
590000000 | |
CY2023Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
125000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
|
5000000 | |
CY2023Q4 | wtw |
Lease Liability Current
LeaseLiabilityCurrent
|
130000000 | |
CY2022Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
126000000 | |
CY2022Q4 | us-gaap |
Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
|
4000000 | |
CY2022Q4 | wtw |
Lease Liability Current
LeaseLiabilityCurrent
|
130000000 | |
CY2023Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
592000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
|
7000000 | |
CY2023Q4 | wtw |
Lease Liability Noncurrent
LeaseLiabilityNoncurrent
|
599000000 | |
CY2022Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
620000000 | |
CY2022Q4 | us-gaap |
Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
|
12000000 | |
CY2022Q4 | wtw |
Lease Liability Noncurrent
LeaseLiabilityNoncurrent
|
632000000 | |
CY2023 | us-gaap |
Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
|
1000000 | |
CY2022 | us-gaap |
Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
|
2000000 | |
CY2021 | us-gaap |
Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
|
1000000 | |
CY2023 | us-gaap |
Finance Lease Interest Expense
FinanceLeaseInterestExpense
|
2000000 | |
CY2022 | us-gaap |
Finance Lease Interest Expense
FinanceLeaseInterestExpense
|
2000000 | |
CY2021 | us-gaap |
Finance Lease Interest Expense
FinanceLeaseInterestExpense
|
3000000 | |
CY2023 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
146000000 | |
CY2022 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
175000000 | |
CY2021 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
192000000 | |
CY2023 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
1000000 | |
CY2022 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
0 | |
CY2021 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
1000000 | |
CY2023 | us-gaap |
Variable Lease Cost
VariableLeaseCost
|
64000000 | |
CY2022 | us-gaap |
Variable Lease Cost
VariableLeaseCost
|
71000000 | |
CY2021 | us-gaap |
Variable Lease Cost
VariableLeaseCost
|
52000000 | |
CY2023 | us-gaap |
Sublease Income
SubleaseIncome
|
13000000 | |
CY2022 | us-gaap |
Sublease Income
SubleaseIncome
|
15000000 | |
CY2021 | us-gaap |
Sublease Income
SubleaseIncome
|
20000000 | |
CY2023 | us-gaap |
Lease Cost
LeaseCost
|
201000000 | |
CY2022 | us-gaap |
Lease Cost
LeaseCost
|
235000000 | |
CY2021 | us-gaap |
Lease Cost
LeaseCost
|
229000000 | |
CY2023 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
155000000 | |
CY2022 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
173000000 | |
CY2021 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
186000000 | |
CY2023 | us-gaap |
Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
|
2000000 | |
CY2022 | us-gaap |
Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
|
2000000 | |
CY2021 | us-gaap |
Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
|
3000000 | |
CY2023 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
4000000 | |
CY2022 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
4000000 | |
CY2021 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
3000000 | |
CY2023 | wtw |
Lease Payment
LeasePayment
|
161000000 | |
CY2022 | wtw |
Lease Payment
LeasePayment
|
179000000 | |
CY2021 | wtw |
Lease Payment
LeasePayment
|
192000000 | |
CY2023 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
85000000 | |
CY2022 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
65000000 | |
CY2021 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
37000000 | |
CY2023Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P6Y7M6D | |
CY2023Q4 | us-gaap |
Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
|
P2Y1M6D | |
CY2022Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P6Y10M24D | |
CY2022Q4 | us-gaap |
Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
|
P3Y1M6D | |
CY2023Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.037 | |
CY2023Q4 | us-gaap |
Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
|
0.127 | |
CY2022Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.034 | |
CY2022Q4 | us-gaap |
Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
|
0.127 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
147000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due Next Twelve Months
FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
|
6000000 | |
CY2023Q4 | wtw |
Lease Liability Payments Due Next Twelve Months
LeaseLiabilityPaymentsDueNextTwelveMonths
|
153000000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
135000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due Year Two
FinanceLeaseLiabilityPaymentsDueYearTwo
|
6000000 | |
CY2023Q4 | wtw |
Lease Liability Payments Due Year Two
LeaseLiabilityPaymentsDueYearTwo
|
141000000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
120000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due Year Three
FinanceLeaseLiabilityPaymentsDueYearThree
|
2000000 | |
CY2023Q4 | wtw |
Lease Liability Payments Due Year Three
LeaseLiabilityPaymentsDueYearThree
|
122000000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
96000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due Year Four
FinanceLeaseLiabilityPaymentsDueYearFour
|
0 | |
CY2023Q4 | wtw |
Lease Liability Payments Due Year Four
LeaseLiabilityPaymentsDueYearFour
|
96000000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
87000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due Year Five
FinanceLeaseLiabilityPaymentsDueYearFive
|
0 | |
CY2023Q4 | wtw |
Lease Liability Payments Due Year Five
LeaseLiabilityPaymentsDueYearFive
|
87000000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
227000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due After Year Five
FinanceLeaseLiabilityPaymentsDueAfterYearFive
|
0 | |
CY2023Q4 | wtw |
Lease Liability Payments Due After Year Five
LeaseLiabilityPaymentsDueAfterYearFive
|
227000000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
812000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
|
14000000 | |
CY2023Q4 | wtw |
Lease Liability Payments Due
LeaseLiabilityPaymentsDue
|
826000000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
95000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Undiscounted Excess Amount
FinanceLeaseLiabilityUndiscountedExcessAmount
|
2000000 | |
CY2023Q4 | wtw |
Lease Liability Undiscounted Excess Amount
LeaseLiabilityUndiscountedExcessAmount
|
97000000 | |
CY2023Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
717000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability
FinanceLeaseLiability
|
12000000 | |
CY2023Q4 | wtw |
Lease Liability
LeaseLiability
|
729000000 | |
CY2023Q4 | wtw |
Deferred Consideration Liabilities
DeferredConsiderationLiabilities
|
3000000 | |
CY2022Q4 | wtw |
Deferred Consideration Liabilities
DeferredConsiderationLiabilities
|
6000000 | |
CY2023 | wtw |
Amount Payable From Option
AmountPayableFromOption
|
3000000 | |
CY2023Q4 | wtw |
Prepaid Expense And Accrued Revenue Receivable Current
PrepaidExpenseAndAccruedRevenueReceivableCurrent
|
123000000 | |
CY2022Q4 | wtw |
Prepaid Expense And Accrued Revenue Receivable Current
PrepaidExpenseAndAccruedRevenueReceivableCurrent
|
132000000 | |
CY2023Q4 | us-gaap |
Capitalized Contract Cost Net Current
CapitalizedContractCostNetCurrent
|
76000000 | |
CY2022Q4 | us-gaap |
Capitalized Contract Cost Net Current
CapitalizedContractCostNetCurrent
|
71000000 | |
CY2023Q4 | wtw |
Derivatives And Investments Current
DerivativesAndInvestmentsCurrent
|
4000000 | |
CY2022Q4 | wtw |
Derivatives And Investments Current
DerivativesAndInvestmentsCurrent
|
43000000 | |
CY2023Q4 | wtw |
Deferred Compensation Plan Assets Current
DeferredCompensationPlanAssetsCurrent
|
16000000 | |
CY2022Q4 | wtw |
Deferred Compensation Plan Assets Current
DeferredCompensationPlanAssetsCurrent
|
16000000 | |
CY2023Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
87000000 | |
CY2022Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
89000000 | |
CY2023Q4 | wtw |
Acquired Renewal Commission Receivable Current
AcquiredRenewalCommissionReceivableCurrent
|
5000000 | |
CY2022Q4 | wtw |
Acquired Renewal Commission Receivable Current
AcquiredRenewalCommissionReceivableCurrent
|
9000000 | |
CY2023Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
53000000 | |
CY2022Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
54000000 | |
CY2023Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
364000000 | |
CY2022Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
414000000 | |
CY2023Q4 | wtw |
Prepaid Expense And Accrued Revenue Receivable Noncurrent
PrepaidExpenseAndAccruedRevenueReceivableNoncurrent
|
9000000 | |
CY2022Q4 | wtw |
Prepaid Expense And Accrued Revenue Receivable Noncurrent
PrepaidExpenseAndAccruedRevenueReceivableNoncurrent
|
10000000 | |
CY2023Q4 | us-gaap |
Capitalized Contract Cost Net Noncurrent
CapitalizedContractCostNetNoncurrent
|
142000000 | |
CY2022Q4 | us-gaap |
Capitalized Contract Cost Net Noncurrent
CapitalizedContractCostNetNoncurrent
|
126000000 | |
CY2023Q4 | us-gaap |
Deferred Compensation Plan Assets
DeferredCompensationPlanAssets
|
89000000 | |
CY2022Q4 | us-gaap |
Deferred Compensation Plan Assets
DeferredCompensationPlanAssets
|
74000000 | |
CY2023Q4 | us-gaap |
Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
|
86000000 | |
CY2022Q4 | us-gaap |
Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
|
68000000 | |
CY2023Q4 | us-gaap |
Accounts Receivable Net Noncurrent
AccountsReceivableNetNoncurrent
|
19000000 | |
CY2022Q4 | us-gaap |
Accounts Receivable Net Noncurrent
AccountsReceivableNetNoncurrent
|
9000000 | |
CY2023Q4 | wtw |
Acquired Renewal Commissions Receivable Non Current
AcquiredRenewalCommissionsReceivableNonCurrent
|
23000000 | |
CY2022Q4 | wtw |
Acquired Renewal Commissions Receivable Non Current
AcquiredRenewalCommissionsReceivableNonCurrent
|
29000000 | |
CY2023Q4 | us-gaap |
Long Term Investments And Receivables Net
LongTermInvestmentsAndReceivablesNet
|
74000000 | |
CY2022Q4 | us-gaap |
Long Term Investments And Receivables Net
LongTermInvestmentsAndReceivablesNet
|
68000000 | |
CY2023Q4 | us-gaap |
Other Investments
OtherInvestments
|
88000000 | |
CY2022Q4 | us-gaap |
Other Investments
OtherInvestments
|
90000000 | |
CY2023Q4 | us-gaap |
Insurance Settlements Receivable Noncurrent
InsuranceSettlementsReceivableNoncurrent
|
85000000 | |
CY2022Q4 | us-gaap |
Insurance Settlements Receivable Noncurrent
InsuranceSettlementsReceivableNoncurrent
|
80000000 | |
CY2023Q4 | us-gaap |
Contract With Customer Asset Net Noncurrent
ContractWithCustomerAssetNetNoncurrent
|
909000000 | |
CY2022Q4 | us-gaap |
Contract With Customer Asset Net Noncurrent
ContractWithCustomerAssetNetNoncurrent
|
745000000 | |
CY2023Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
49000000 | |
CY2022Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
58000000 | |
CY2023Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
1573000000 | |
CY2022Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
1357000000 | |
CY2023Q4 | us-gaap |
Accounts Payable Other Current
AccountsPayableOtherCurrent
|
1073000000 | |
CY2022Q4 | us-gaap |
Accounts Payable Other Current
AccountsPayableOtherCurrent
|
975000000 | |
CY2023Q4 | wtw |
Accrued Discretionary And Incentive Compensation
AccruedDiscretionaryAndIncentiveCompensation
|
795000000 | |
CY2022Q4 | wtw |
Accrued Discretionary And Incentive Compensation
AccruedDiscretionaryAndIncentiveCompensation
|
708000000 | |
CY2023Q4 | us-gaap |
Other Deferred Compensation Arrangements Liability Current
OtherDeferredCompensationArrangementsLiabilityCurrent
|
150000000 | |
CY2022Q4 | us-gaap |
Other Deferred Compensation Arrangements Liability Current
OtherDeferredCompensationArrangementsLiabilityCurrent
|
142000000 | |
CY2023Q4 | us-gaap |
Other Employee Related Liabilities Current
OtherEmployeeRelatedLiabilitiesCurrent
|
86000000 | |
CY2022Q4 | us-gaap |
Other Employee Related Liabilities Current
OtherEmployeeRelatedLiabilitiesCurrent
|
90000000 | |
CY2023Q4 | wtw |
Deferred Revenue And Accrued Liabilities Current
DeferredRevenueAndAccruedLiabilitiesCurrent
|
2104000000 | |
CY2022Q4 | wtw |
Deferred Revenue And Accrued Liabilities Current
DeferredRevenueAndAccruedLiabilitiesCurrent
|
1915000000 | |
CY2023Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
103000000 | |
CY2022Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
102000000 | |
CY2023Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
50000000 | |
CY2022Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
83000000 | |
CY2023Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
50000000 | |
CY2022Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
49000000 | |
CY2023Q4 | us-gaap |
Deferred Compensation Liability Current
DeferredCompensationLiabilityCurrent
|
16000000 | |
CY2022Q4 | us-gaap |
Deferred Compensation Liability Current
DeferredCompensationLiabilityCurrent
|
14000000 | |
CY2023Q4 | wtw |
Business Combination Contingent Consideration Liability And Deferred Consideration Current
BusinessCombinationContingentConsiderationLiabilityAndDeferredConsiderationCurrent
|
7000000 | |
CY2022Q4 | wtw |
Business Combination Contingent Consideration Liability And Deferred Consideration Current
BusinessCombinationContingentConsiderationLiabilityAndDeferredConsiderationCurrent
|
17000000 | |
CY2023Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
31000000 | |
CY2022Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
32000000 | |
CY2023Q4 | wtw |
Payroll And Other Benefits Related Liabilities
PayrollAndOtherBenefitsRelatedLiabilities
|
166000000 | |
CY2022Q4 | wtw |
Payroll And Other Benefits Related Liabilities
PayrollAndOtherBenefitsRelatedLiabilities
|
157000000 | |
CY2023Q4 | us-gaap |
Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
|
78000000 | |
CY2022Q4 | us-gaap |
Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
|
65000000 | |
CY2023Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
1000000 | |
CY2022Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
4000000 | |
CY2023Q4 | us-gaap |
Accrued Sales Commission Current
AccruedSalesCommissionCurrent
|
106000000 | |
CY2022Q4 | us-gaap |
Accrued Sales Commission Current
AccruedSalesCommissionCurrent
|
124000000 | |
CY2023Q4 | us-gaap |
Other Sundry Liabilities Current
OtherSundryLiabilitiesCurrent
|
70000000 | |
CY2022Q4 | us-gaap |
Other Sundry Liabilities Current
OtherSundryLiabilitiesCurrent
|
69000000 | |
CY2023Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
678000000 | |
CY2022Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
716000000 | |
CY2023Q4 | us-gaap |
Litigation Reserve Noncurrent
LitigationReserveNoncurrent
|
306000000 | |
CY2022Q4 | us-gaap |
Litigation Reserve Noncurrent
LitigationReserveNoncurrent
|
296000000 | |
CY2023Q4 | us-gaap |
Other Accrued Liabilities Noncurrent
OtherAccruedLiabilitiesNoncurrent
|
59000000 | |
CY2022Q4 | us-gaap |
Other Accrued Liabilities Noncurrent
OtherAccruedLiabilitiesNoncurrent
|
61000000 | |
CY2023Q4 | wtw |
Provision For Liabilities Non Current
ProvisionForLiabilitiesNonCurrent
|
365000000 | |
CY2022Q4 | wtw |
Provision For Liabilities Non Current
ProvisionForLiabilitiesNonCurrent
|
357000000 | |
CY2023Q4 | us-gaap |
Deferred Compensation Liability Classified Noncurrent
DeferredCompensationLiabilityClassifiedNoncurrent
|
97000000 | |
CY2022Q4 | us-gaap |
Deferred Compensation Liability Classified Noncurrent
DeferredCompensationLiabilityClassifiedNoncurrent
|
113000000 | |
CY2023Q4 | wtw |
Business Combination Contingent Consideration Liability And Deferred Consideration Noncurrent
BusinessCombinationContingentConsiderationLiabilityAndDeferredConsiderationNoncurrent
|
27000000 | |
CY2022Q4 | wtw |
Business Combination Contingent Consideration Liability And Deferred Consideration Noncurrent
BusinessCombinationContingentConsiderationLiabilityAndDeferredConsiderationNoncurrent
|
29000000 | |
CY2023Q4 | wtw |
Unrecognized Tax Benefits Including Interest
UnrecognizedTaxBenefitsIncludingInterest
|
42000000 | |
CY2022Q4 | wtw |
Unrecognized Tax Benefits Including Interest
UnrecognizedTaxBenefitsIncludingInterest
|
40000000 | |
CY2023Q4 | us-gaap |
Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
|
7000000 | |
CY2022Q4 | us-gaap |
Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
|
12000000 | |
CY2023Q4 | us-gaap |
Other Sundry Liabilities Noncurrent
OtherSundryLiabilitiesNoncurrent
|
65000000 | |
CY2022Q4 | us-gaap |
Other Sundry Liabilities Noncurrent
OtherSundryLiabilitiesNoncurrent
|
27000000 | |
CY2023Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
238000000 | |
CY2022Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
221000000 | |
CY2023 | us-gaap |
Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
|
43000000 | |
CY2022 | us-gaap |
Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
|
7000000 | |
CY2021 | us-gaap |
Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
|
379000000 | |
CY2023 | us-gaap |
Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component
NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
|
-109000000 | |
CY2022 | us-gaap |
Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component
NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
|
-272000000 | |
CY2021 | us-gaap |
Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component
NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
|
-303000000 | |
CY2023 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
3000000 | |
CY2022 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
4000000 | |
CY2021 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
8000000 | |
CY2023 | us-gaap |
Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
|
-11000000 | |
CY2022 | us-gaap |
Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
|
0 | |
CY2021 | us-gaap |
Foreign Currency Transaction Gain Loss Realized
ForeignCurrencyTransactionGainLossRealized
|
8000000 | |
CY2023 | wtw |
Miscellaneous Other Non Operating Income Expense
MiscellaneousOtherNonOperatingIncomeExpense
|
5000000 | |
CY2022 | wtw |
Miscellaneous Other Non Operating Income Expense
MiscellaneousOtherNonOperatingIncomeExpense
|
5000000 | |
CY2021 | wtw |
Miscellaneous Other Non Operating Income Expense
MiscellaneousOtherNonOperatingIncomeExpense
|
3000000 | |
CY2023 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
149000000 | |
CY2022 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
288000000 | |
CY2021 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
701000000 | |
CY2023 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
-370000000 | |
CY2023 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
-137000000 | |
CY2023 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-233000000 | |
CY2022 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
-418000000 | |
CY2022 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
18000000 | |
CY2022 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-436000000 | |
CY2021 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
255000000 | |
CY2021 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
80000000 | |
CY2021 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
175000000 | |
CY2021 | us-gaap |
Reclassification From Aoci Current Period Tax
ReclassificationFromAociCurrentPeriodTax
|
-12000000 | |
CY2022 | us-gaap |
Reclassification From Aoci Current Period Tax
ReclassificationFromAociCurrentPeriodTax
|
-9000000 | |
CY2023 | us-gaap |
Reclassification From Aoci Current Period Tax
ReclassificationFromAociCurrentPeriodTax
|
-11000000 | |
CY2023 | us-gaap |
Stock Issued During Period Shares Share Based Compensation
StockIssuedDuringPeriodSharesShareBasedCompensation
|
265000 | |
CY2023 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
125000000 | |
CY2022 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
99000000 | |
CY2021 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
101000000 | |
CY2023 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
125000000 | |
CY2022 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
99000000 | |
CY2023 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
21000000 | |
CY2022 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
18000000 | |
CY2021 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
17000000 | |
CY2023Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
0 | |
CY2022 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
7000000 | |
CY2021 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
10000000 | |
CY2023 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Number Of Employees Affected
ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationNumberOfEmployeesAffected
|
464 | |
CY2023 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost
ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost
|
14000000 | |
CY2023 | wtw |
Employee Services Share Based Compensation Tax Benefit Realized From Vesting Of Rs Us
EmployeeServicesShareBasedCompensationTaxBenefitRealizedFromVestingOfRSUs
|
9000000 | |
CY2022 | wtw |
Employee Services Share Based Compensation Tax Benefit Realized From Vesting Of Rs Us
EmployeeServicesShareBasedCompensationTaxBenefitRealizedFromVestingOfRSUs
|
23000000 | |
CY2021 | wtw |
Employee Services Share Based Compensation Tax Benefit Realized From Vesting Of Rs Us
EmployeeServicesShareBasedCompensationTaxBenefitRealizedFromVestingOfRSUs
|
12000000 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
1064000000 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
1064000000 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
2156000000 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations Attributable To Noncontrolling Entity
IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
|
9000000 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Attributable To Noncontrolling Entity
IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
|
15000000 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Attributable To Noncontrolling Entity
IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
|
14000000 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
1055000000 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
1049000000 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
2142000000 | |
CY2023 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | |
CY2022 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
-40000000 | |
CY2021 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
2080000000 | |
CY2023 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
105000000 | |
CY2022 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
112000000 | |
CY2021 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
128000000 | |
CY2023 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
1000000 | |
CY2022 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
0 | |
CY2021 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
1000000 | |
CY2023 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
106000000 | |
CY2022 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
112000000 | |
CY2021 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
129000000 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
10.01 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
9.36 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
16.68 | |
CY2023 | wtw |
Dilutive Securities Effect On Basic Earnings Per Share Continuing Operations
DilutiveSecuritiesEffectOnBasicEarningsPerShareContinuingOperations
|
-0.06 | |
CY2022 | wtw |
Dilutive Securities Effect On Basic Earnings Per Share Continuing Operations
DilutiveSecuritiesEffectOnBasicEarningsPerShareContinuingOperations
|
-0.02 | |
CY2021 | wtw |
Dilutive Securities Effect On Basic Earnings Per Share Continuing Operations
DilutiveSecuritiesEffectOnBasicEarningsPerShareContinuingOperations
|
-0.05 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
9.95 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
9.34 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
16.63 | |
CY2023 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0 | |
CY2022 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
-0.36 | |
CY2021 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
16.2 | |
CY2023 | wtw |
Dilutive Securities Effect On Basic Earnings Per Share Discontinued Operations
DilutiveSecuritiesEffectOnBasicEarningsPerShareDiscontinuedOperations
|
0 | |
CY2022 | wtw |
Dilutive Securities Effect On Basic Earnings Per Share Discontinued Operations
DilutiveSecuritiesEffectOnBasicEarningsPerShareDiscontinuedOperations
|
0 | |
CY2021 | wtw |
Dilutive Securities Effect On Basic Earnings Per Share Discontinued Operations
DilutiveSecuritiesEffectOnBasicEarningsPerShareDiscontinuedOperations
|
-0.05 | |
CY2023 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0 | |
CY2022 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
-0.36 | |
CY2021 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
16.15 | |
CY2023Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1424000000 | |
CY2022Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1262000000 | |
CY2021Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
4486000000 | |
CY2023Q4 | us-gaap |
Other Restricted Assets Current
OtherRestrictedAssetsCurrent
|
2368000000 | |
CY2022Q4 | us-gaap |
Other Restricted Assets Current
OtherRestrictedAssetsCurrent
|
3459000000 | |
CY2021Q4 | us-gaap |
Other Restricted Assets Current
OtherRestrictedAssetsCurrent
|
3203000000 | |
CY2023Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations
|
0 | |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations
|
0 | |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations
|
2000000 | |
CY2023Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
3792000000 | |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
4721000000 | |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
7691000000 | |
CY2023 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
-940000000 | |
CY2022 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
-2806000000 | |
CY2021 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
1517000000 | |
CY2023 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
348000000 | |
CY2022 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
428000000 | |
CY2021 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
570000000 | |
CY2023 | us-gaap |
Interest Paid Net
InterestPaidNet
|
223000000 | |
CY2022 | us-gaap |
Interest Paid Net
InterestPaidNet
|
201000000 | |
CY2021 | us-gaap |
Interest Paid Net
InterestPaidNet
|
212000000 | |
CY2023 | us-gaap |
Cash Acquired From Acquisition
CashAcquiredFromAcquisition
|
0 | |
CY2022 | us-gaap |
Cash Acquired From Acquisition
CashAcquiredFromAcquisition
|
30000000 | |
CY2021 | us-gaap |
Cash Acquired From Acquisition
CashAcquiredFromAcquisition
|
5000000 | |
CY2023 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
0 | |
CY2022 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
63000000 | |
CY2021 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
0 | |
CY2023 | wtw |
Non Cash Or Part Non Cash Acquisition Fair Value Of Deferred And Contingent Consideration
NonCashOrPartNonCashAcquisitionFairValueOfDeferredAndContingentConsideration
|
3000000 | |
CY2022 | wtw |
Non Cash Or Part Non Cash Acquisition Fair Value Of Deferred And Contingent Consideration
NonCashOrPartNonCashAcquisitionFairValueOfDeferredAndContingentConsideration
|
28000000 | |
CY2021 | wtw |
Non Cash Or Part Non Cash Acquisition Fair Value Of Deferred And Contingent Consideration
NonCashOrPartNonCashAcquisitionFairValueOfDeferredAndContingentConsideration
|
21000000 | |
CY2023Q4 | ecd |
Rule10b51 Arr Adopted Flag
Rule10b51ArrAdoptedFlag
|
false | |
CY2023Q4 | wtw |
Rule10 B51 Arr Modified Flag
Rule10B51ArrModifiedFlag
|
false | |
CY2023Q4 | wtw |
Non Rule10 B51 Arr Modified Flag
NonRule10B51ArrModifiedFlag
|
false | |
CY2023Q4 | ecd |
Rule10b51 Arr Trmntd Flag
Rule10b51ArrTrmntdFlag
|
false | |
CY2023Q4 | ecd |
Non Rule10b51 Arr Adopted Flag
NonRule10b51ArrAdoptedFlag
|
false | |
CY2023Q4 | ecd |
Non Rule10b51 Arr Trmntd Flag
NonRule10b51ArrTrmntdFlag
|
false |