$AON
Aon plc

2022 Q1 Form 10-Q Financial Statement

#000162828022011520 Filed on April 29, 2022

View on sec.gov

Income Statement

Concept 2022 Q1 2021 Q1
Revenue $3.670B $3.525B
YoY Change 4.11% 9.51%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin $2.237B $2.199B
YoY Change 1.73% 7.37%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $38.00M $41.00M
YoY Change -7.32% 0.0%
% of Gross Profit
Operating Expenses $2.303B $2.280B
YoY Change 1.01% 4.3%
Operating Profit $1.367B $1.245B
YoY Change 9.8% 20.52%
Interest Expense $91.00M $79.00M
YoY Change 15.19% -4.82%
% of Operating Profit 6.66% 6.35%
Other Income/Expense, Net $25.00M -$2.000M
YoY Change -1350.0% -107.14%
Pretax Income $1.304B $1.167B
YoY Change 11.74% 19.08%
Income Tax $256.0M $234.0M
% Of Pretax Income 19.63% 20.05%
Net Earnings $1.023B $913.0M
YoY Change 12.05% 15.42%
Net Earnings / Revenue 27.87% 25.9%
Basic Earnings Per Share $4.75 $4.02
Diluted Earnings Per Share $4.73 $4.00
COMMON SHARES
Basic Shares Outstanding 215.3M shares 227.1M shares
Diluted Shares Outstanding 216.4M shares 228.1M shares

Balance Sheet

Concept 2022 Q1 2021 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments $7.750B $6.692B
YoY Change 15.81% 10.54%
Cash & Equivalents $595.0M $822.0M
Short-Term Investments $7.155B $5.870B
Other Short-Term Assets $593.0M $492.0M
YoY Change 20.53% -7.17%
Inventory
Prepaid Expenses $132.0M $118.0M
Receivables $3.625B $3.526B
Other Receivables $48.00M $45.00M
Total Short-Term Assets $20.55B $18.91B
YoY Change 8.67% 8.99%
LONG-TERM ASSETS
Property, Plant & Equipment $515.0M $584.0M
YoY Change -11.82% -12.31%
Goodwill $8.496B $8.587B
YoY Change -1.06% 3.55%
Intangibles $530.0M
YoY Change
Long-Term Investments $62.00M $74.00M
YoY Change -16.22% 42.31%
Other Assets $520.0M $596.0M
YoY Change -12.75% 11.82%
Total Long-Term Assets $12.95B $13.27B
YoY Change -2.44% 2.57%
TOTAL ASSETS
Total Short-Term Assets $20.55B $18.91B
Total Long-Term Assets $12.95B $13.27B
Total Assets $33.49B $32.18B
YoY Change 4.09% 6.25%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $1.728B $1.628B
YoY Change 6.14% 5.1%
Accrued Expenses $207.0M $222.0M
YoY Change -6.76% 11.0%
Deferred Revenue $323.0M $340.0M
YoY Change -5.0% 10.03%
Short-Term Debt $100.0M $0.00
YoY Change -100.0%
Long-Term Debt Due $499.0M $0.00
YoY Change -100.0%
Total Short-Term Liabilities $19.19B $16.82B
YoY Change 14.06% -1.68%
LONG-TERM LIABILITIES
Long-Term Debt $9.685B $7.263B
YoY Change 33.35% 16.64%
Other Long-Term Liabilities $871.0M $905.0M
YoY Change -3.76% -2.69%
Total Long-Term Liabilities $10.56B $8.168B
YoY Change 29.24% 14.13%
TOTAL LIABILITIES
Total Short-Term Liabilities $19.19B $16.82B
Total Long-Term Liabilities $10.56B $8.168B
Total Liabilities $32.20B $27.81B
YoY Change 15.77% 2.93%
SHAREHOLDERS EQUITY
Retained Earnings -$1.609B $1.801B
YoY Change -189.34% 23.78%
Common Stock $6.629B $6.350B
YoY Change 4.39% 3.71%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $1.177B $4.260B
YoY Change
Total Liabilities & Shareholders Equity $33.49B $32.18B
YoY Change 4.09% 6.25%

Cashflow Statement

Concept 2022 Q1 2021 Q1
OPERATING ACTIVITIES
Net Income $1.023B $913.0M
YoY Change 12.05% 15.42%
Depreciation, Depletion And Amortization $38.00M $41.00M
YoY Change -7.32% 0.0%
Cash From Operating Activities $463.0M $561.0M
YoY Change -17.47% 65.98%
INVESTING ACTIVITIES
Capital Expenditures $23.00M $29.00M
YoY Change -20.69% -50.85%
Acquisitions $134.0M $0.00
YoY Change -100.0%
Other Investing Activities -$240.0M $131.0M
YoY Change -283.21% -134.56%
Cash From Investing Activities -$263.0M $102.0M
YoY Change -357.84% -123.29%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net $2.208B $650.0M
YoY Change 239.69% -51.53%
Cash From Financing Activities $500.0M -$681.0M
YoY Change -173.42% -930.49%
NET CHANGE
Cash From Operating Activities $463.0M $561.0M
Cash From Investing Activities -$263.0M $102.0M
Cash From Financing Activities $500.0M -$681.0M
Net Change In Cash $650.0M -$52.00M
YoY Change -1350.0% -48.0%
FREE CASH FLOW
Cash From Operating Activities $463.0M $561.0M
Capital Expenditures $23.00M $29.00M
Free Cash Flow $440.0M $532.0M
YoY Change -17.29% 90.68%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2022Q1 dei Entity Central Index Key
EntityCentralIndexKey
0000315293
CY2022Q1 dei Amendment Flag
AmendmentFlag
false
CY2022Q1 dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2022
CY2022Q1 dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
Q1
CY2022Q1 dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
L2
CY2022Q1 dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
CY2022Q1 dei Document Type
DocumentType
10-Q
CY2022Q1 dei Document Quarterly Report
DocumentQuarterlyReport
true
CY2022Q1 dei Document Period End Date
DocumentPeriodEndDate
2022-03-31
CY2022Q1 dei Document Transition Report
DocumentTransitionReport
false
CY2022Q1 dei Entity File Number
EntityFileNumber
1-7933
CY2022Q1 dei Entity Registrant Name
EntityRegistrantName
Aon plc
CY2022Q1 dei Entity Tax Identification Number
EntityTaxIdentificationNumber
98-1539969
CY2022Q1 dei Entity Address Address Line1
EntityAddressAddressLine1
Metropolitan Building, James Joyce Street
CY2022Q1 dei Entity Address City Or Town
EntityAddressCityOrTown
Dublin 1
CY2022Q1 dei Entity Address Country
EntityAddressCountry
IE
CY2022Q1 dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
D01 K0Y8
CY2022Q1 dei City Area Code
CityAreaCode
1
CY2022Q1 dei Local Phone Number
LocalPhoneNumber
266 6000
CY2022Q1 dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
CY2022Q1 dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
CY2022Q1 dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
CY2022Q1 dei Entity Small Business
EntitySmallBusiness
false
CY2022Q1 dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
CY2022Q1 dei Entity Shell Company
EntityShellCompany
false
CY2022Q2 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
212383902 shares
CY2022Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
3670000000 USD
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
3525000000 USD
CY2022Q1 us-gaap Labor And Related Expense
LaborAndRelatedExpense
1767000000 USD
CY2021Q1 us-gaap Labor And Related Expense
LaborAndRelatedExpense
1719000000 USD
CY2022Q1 us-gaap Information Technology And Data Processing
InformationTechnologyAndDataProcessing
123000000 USD
CY2021Q1 us-gaap Information Technology And Data Processing
InformationTechnologyAndDataProcessing
114000000 USD
CY2022Q1 us-gaap Occupancy Net
OccupancyNet
72000000 USD
CY2021Q1 us-gaap Occupancy Net
OccupancyNet
77000000 USD
CY2022Q1 us-gaap Depreciation
Depreciation
38000000 USD
CY2021Q4 us-gaap Assets
Assets
31917000000 USD
CY2021Q1 us-gaap Depreciation
Depreciation
41000000 USD
CY2022Q1 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
28000000 USD
CY2021Q1 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
40000000 USD
CY2022Q1 aon Other General Expenses
OtherGeneralExpenses
275000000 USD
CY2021Q1 aon Other General Expenses
OtherGeneralExpenses
289000000 USD
CY2022Q1 us-gaap Costs And Expenses
CostsAndExpenses
2303000000 USD
CY2021Q1 us-gaap Costs And Expenses
CostsAndExpenses
2280000000 USD
CY2022Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
1367000000 USD
CY2021Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
1245000000 USD
CY2022Q1 us-gaap Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
3000000 USD
CY2021Q1 us-gaap Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
3000000 USD
CY2022Q1 us-gaap Interest Expense
InterestExpense
91000000 USD
CY2021Q1 us-gaap Interest Expense
InterestExpense
79000000 USD
CY2022Q1 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
25000000 USD
CY2021Q1 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-2000000 USD
CY2022Q1 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
1304000000 USD
CY2021Q1 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
1167000000 USD
CY2022Q1 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
256000000 USD
CY2021Q1 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
234000000 USD
CY2022Q1 us-gaap Profit Loss
ProfitLoss
1048000000 USD
CY2021Q1 us-gaap Profit Loss
ProfitLoss
933000000 USD
CY2022Q1 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
25000000 USD
CY2021Q1 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
20000000 USD
CY2022Q1 us-gaap Net Income Loss
NetIncomeLoss
1023000000 USD
CY2021Q1 us-gaap Net Income Loss
NetIncomeLoss
913000000 USD
CY2022Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
4.75
CY2021Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
4.02
CY2022Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
4.73
CY2021Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
4.00
CY2022Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
215300000 shares
CY2021Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
227100000 shares
CY2022Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
216400000 shares
CY2021Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
6624000000 USD
CY2021Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
228100000 shares
CY2022Q1 us-gaap Profit Loss
ProfitLoss
1048000000 USD
CY2021Q1 us-gaap Profit Loss
ProfitLoss
933000000 USD
CY2022Q1 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
25000000 USD
CY2021Q1 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
20000000 USD
CY2022Q1 us-gaap Net Income Loss
NetIncomeLoss
1023000000 USD
CY2021Q1 us-gaap Net Income Loss
NetIncomeLoss
913000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
1000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
11000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-7000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-70000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-33000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-29000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
27000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-30000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
-1000000 USD
CY2021Q4 aon Cash And Cash Equivalents And Short Term Investments
CashAndCashEquivalentsAndShortTermInvestments
836000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
0 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
28000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-30000000 USD
CY2022Q1 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
1051000000 USD
CY2021Q1 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
883000000 USD
CY2022Q1 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
595000000 USD
CY2021Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
544000000 USD
CY2022Q1 us-gaap Short Term Investments
ShortTermInvestments
455000000 USD
CY2021Q4 us-gaap Short Term Investments
ShortTermInvestments
292000000 USD
CY2022Q1 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
3625000000 USD
CY2021Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
3094000000 USD
CY2022Q1 aon Fiduciary Assets
FiduciaryAssets
15277000000 USD
CY2021Q4 aon Fiduciary Assets
FiduciaryAssets
14386000000 USD
CY2022Q1 us-gaap Other Assets Current
OtherAssetsCurrent
593000000 USD
CY2021Q4 us-gaap Other Assets Current
OtherAssetsCurrent
716000000 USD
CY2022Q1 us-gaap Assets Current
AssetsCurrent
20545000000 USD
CY2021Q4 us-gaap Assets Current
AssetsCurrent
19032000000 USD
CY2022Q1 us-gaap Goodwill
Goodwill
8496000000 USD
CY2021Q4 us-gaap Goodwill
Goodwill
8434000000 USD
CY2022Q1 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
530000000 USD
CY2021Q4 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
492000000 USD
CY2022Q1 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
515000000 USD
CY2021Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
529000000 USD
CY2022Q1 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
754000000 USD
CY2021Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
786000000 USD
CY2022Q1 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
770000000 USD
CY2021Q4 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
766000000 USD
CY2022Q1 us-gaap Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
1361000000 USD
CY2021Q4 us-gaap Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
1366000000 USD
CY2022Q1 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
520000000 USD
CY2021Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
512000000 USD
CY2022Q1 us-gaap Assets
Assets
33491000000 USD
CY2021Q4 aon Fiduciary Liabilities
FiduciaryLiabilities
14386000000 USD
CY2022Q1 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
1728000000 USD
CY2021Q4 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
2192000000 USD
CY2022Q1 us-gaap Debt Current
DebtCurrent
599000000 USD
CY2021Q4 us-gaap Debt Current
DebtCurrent
1164000000 USD
CY2022Q1 aon Fiduciary Liabilities
FiduciaryLiabilities
15277000000 USD
CY2022Q1 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
1585000000 USD
CY2021Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
1331000000 USD
CY2022Q1 us-gaap Liabilities Current
LiabilitiesCurrent
19189000000 USD
CY2021Q4 us-gaap Liabilities Current
LiabilitiesCurrent
19073000000 USD
CY2022Q1 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
9685000000 USD
CY2021Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
8228000000 USD
CY2022Q1 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
736000000 USD
CY2021Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
772000000 USD
CY2022Q1 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
399000000 USD
CY2021Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
401000000 USD
CY2022Q1 us-gaap Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent
1320000000 USD
CY2021Q4 us-gaap Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent
1375000000 USD
CY2022Q1 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
871000000 USD
CY2021Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
910000000 USD
CY2022Q1 us-gaap Liabilities
Liabilities
32200000000 USD
CY2021Q4 us-gaap Liabilities
Liabilities
30759000000 USD
CY2021Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2022Q1 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2022Q1 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
500000000.0 shares
CY2021Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
500000000.0 shares
CY2022Q1 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
212900000 shares
CY2021Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
214800000 shares
CY2022Q1 us-gaap Common Stock Value
CommonStockValue
2000000 USD
CY2021Q4 us-gaap Common Stock Value
CommonStockValue
2000000 USD
CY2022Q1 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
6627000000 USD
CY2022Q1 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-1609000000 USD
CY2021Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-1694000000 USD
CY2022Q1 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-3843000000 USD
CY2021Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-3871000000 USD
CY2022Q1 us-gaap Stockholders Equity
StockholdersEquity
1177000000 USD
CY2021Q4 us-gaap Stockholders Equity
StockholdersEquity
1061000000 USD
CY2022Q1 us-gaap Minority Interest
MinorityInterest
114000000 USD
CY2021Q4 us-gaap Minority Interest
MinorityInterest
97000000 USD
CY2022Q1 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
1291000000 USD
CY2021Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
1158000000 USD
CY2022Q1 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
33491000000 USD
CY2021Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
31917000000 USD
CY2021Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
1158000000 USD
CY2022Q1 us-gaap Profit Loss
ProfitLoss
1048000000 USD
CY2022Q1 us-gaap Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
-116000000 USD
CY2022Q1 us-gaap Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
828000000 USD
CY2022Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
119000000 USD
CY2022Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.51
CY2022Q1 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
110000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
1000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-7000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-33000000 USD
CY2022Q1 us-gaap Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
7000000 USD
CY2022Q1 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
1291000000 USD
CY2020Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
3583000000 USD
CY2021Q1 us-gaap Profit Loss
ProfitLoss
933000000 USD
CY2021Q1 us-gaap Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
-87000000 USD
CY2021Q1 us-gaap Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
50000000 USD
CY2021Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
131000000 USD
CY2021Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.46
CY2021Q1 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
104000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
11000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-70000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-29000000 USD
CY2021Q1 us-gaap Minority Interest Decrease From Redemptions
MinorityInterestDecreaseFromRedemptions
14000000 USD
CY2021Q1 us-gaap Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
1000000 USD
CY2021Q1 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
4361000000 USD
CY2022Q1 us-gaap Profit Loss
ProfitLoss
1048000000 USD
CY2021Q1 us-gaap Profit Loss
ProfitLoss
933000000 USD
CY2022Q1 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
25000000 USD
CY2021Q1 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
0 USD
CY2022Q1 us-gaap Depreciation
Depreciation
38000000 USD
CY2021Q1 us-gaap Depreciation
Depreciation
41000000 USD
CY2022Q1 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
28000000 USD
CY2021Q1 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
40000000 USD
CY2022Q1 us-gaap Share Based Compensation
ShareBasedCompensation
119000000 USD
CY2021Q1 us-gaap Share Based Compensation
ShareBasedCompensation
131000000 USD
CY2022Q1 us-gaap Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
-18000000 USD
CY2021Q1 us-gaap Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
19000000 USD
CY2022Q1 us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
544000000 USD
CY2021Q1 us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
485000000 USD
CY2022Q1 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
-449000000 USD
CY2021Q1 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
-356000000 USD
CY2022Q1 us-gaap Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
153000000 USD
CY2021Q1 us-gaap Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
142000000 USD
CY2022Q1 us-gaap Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
-27000000 USD
CY2021Q1 us-gaap Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
-59000000 USD
CY2022Q1 us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
-140000000 USD
CY2021Q1 us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
-155000000 USD
CY2022Q1 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
463000000 USD
CY2021Q1 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
561000000 USD
CY2022Q1 us-gaap Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
45000000 USD
CY2021Q1 us-gaap Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
11000000 USD
CY2022Q1 us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
9000000 USD
CY2021Q1 us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
18000000 USD
CY2022Q1 aon Payments For Proceeds From Marketable Securities
PaymentsForProceedsFromMarketableSecurities
164000000 USD
CY2021Q1 aon Payments For Proceeds From Marketable Securities
PaymentsForProceedsFromMarketableSecurities
-138000000 USD
CY2022Q1 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
134000000 USD
CY2021Q1 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
0 USD
CY2022Q1 us-gaap Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
22000000 USD
CY2021Q1 us-gaap Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
0 USD
CY2022Q1 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
23000000 USD
CY2021Q1 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
29000000 USD
CY2022Q1 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-263000000 USD
CY2021Q1 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
102000000 USD
CY2022Q1 us-gaap Payments For Repurchase Of Equity
PaymentsForRepurchaseOfEquity
828000000 USD
CY2021Q1 us-gaap Payments For Repurchase Of Equity
PaymentsForRepurchaseOfEquity
50000000 USD
CY2022Q1 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
116000000 USD
CY2021Q1 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
87000000 USD
CY2022Q1 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
3128000000 USD
CY2021Q1 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
250000000 USD
CY2022Q1 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
2208000000 USD
CY2021Q1 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
650000000 USD
CY2022Q1 aon Increase In Fiduciary Liabilities Net Of Fiduciary Receivables
IncreaseInFiduciaryLiabilitiesNetOfFiduciaryReceivables
647000000 USD
CY2021Q1 aon Increase In Fiduciary Liabilities Net Of Fiduciary Receivables
IncreaseInFiduciaryLiabilitiesNetOfFiduciaryReceivables
28000000 USD
CY2022Q1 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
110000000 USD
CY2021Q1 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
104000000 USD
CY2022Q1 us-gaap Payments To Minority Shareholders
PaymentsToMinorityShareholders
13000000 USD
CY2021Q1 us-gaap Payments To Minority Shareholders
PaymentsToMinorityShareholders
68000000 USD
CY2022Q1 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
500000000 USD
CY2021Q1 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-681000000 USD
CY2022Q1 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
-50000000 USD
CY2021Q1 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
-34000000 USD
CY2022Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
650000000 USD
CY2021Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-52000000 USD
CY2021Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
6645000000 USD
CY2021Q1 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
822000000 USD
CY2022Q1 us-gaap Funds Held For Clients
FundsHeldForClients
6700000000 USD
CY2022Q1 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
25000000 USD
CY2021Q1 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
0 USD
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
6573000000 USD
CY2022Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
7295000000 USD
CY2021Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
6521000000 USD
CY2022Q1 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
595000000 USD
CY2021Q1 us-gaap Funds Held For Clients
FundsHeldForClients
5699000000 USD
CY2022Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
7295000000 USD
CY2021Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
6521000000 USD
CY2022Q1 us-gaap Interest Paid Net
InterestPaidNet
22000000 USD
CY2021Q1 us-gaap Interest Paid Net
InterestPaidNet
36000000 USD
CY2022Q1 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
121000000 USD
CY2021Q1 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
74000000 USD
CY2022Q1 us-gaap Use Of Estimates
UseOfEstimates
<div style="margin-bottom:8pt;margin-top:8pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-bottom:8pt;margin-top:8pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the accompanying Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements, and the reported amounts of reserves and expenses. These estimates and assumptions are based on management’s best estimates and judgments. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment. Management believes its estimates to be reasonable given the current facts available. Aon adjusts such estimates and assumptions when facts and circumstances dictate. Illiquid credit markets, volatile equity markets, foreign currency exchange rate movements, and the COVID-19 pandemic increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in estimates resulting from continuing changes in the economic environment would, if applicable, be reflected in the Condensed Consolidated Financial Statements in future periods.</span></div>
CY2022Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
3670000000 USD
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
3525000000 USD
CY2022Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
3670000000 USD
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
3525000000 USD
CY2022Q1 aon Cash And Cash Equivalents And Short Term Investments
CashAndCashEquivalentsAndShortTermInvestments
1050000000 USD
CY2022Q1 aon Cash And Cash Equivalents And Short Term Investments Period Increase Decrease
CashAndCashEquivalentsAndShortTermInvestmentsPeriodIncreaseDecrease
214000000 USD
CY2022Q1 us-gaap Restricted Cash And Investments Current
RestrictedCashAndInvestmentsCurrent
163000000 USD
CY2021Q4 us-gaap Restricted Cash And Investments Current
RestrictedCashAndInvestmentsCurrent
160000000 USD
CY2021Q4 aon Short Term Investments Operating Funds Required To Be Held
ShortTermInvestmentsOperatingFundsRequiredToBeHeld
84300000 GBP
CY2022Q1 aon Short Term Investments Operating Funds Required To Be Held
ShortTermInvestmentsOperatingFundsRequiredToBeHeld
84300000 GBP
CY2022Q1 aon Short Term Investments Operating Funds Required To Be Held
ShortTermInvestmentsOperatingFundsRequiredToBeHeld
111100000 USD
CY2021Q4 aon Short Term Investments Operating Funds Required To Be Held
ShortTermInvestmentsOperatingFundsRequiredToBeHeld
112800000 USD
CY2022Q1 us-gaap Foreign Currency Transaction Gain Loss Before Tax
ForeignCurrencyTransactionGainLossBeforeTax
-28000000 USD
CY2021Q1 us-gaap Foreign Currency Transaction Gain Loss Before Tax
ForeignCurrencyTransactionGainLossBeforeTax
4000000 USD
CY2022Q1 us-gaap Pension Expense
PensionExpense
3000000 USD
CY2021Q1 us-gaap Pension Expense
PensionExpense
-6000000 USD
CY2022Q1 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
1000000 USD
CY2021Q1 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
1000000 USD
CY2021Q1 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-2000000 USD
CY2022Q1 us-gaap Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
30000000 USD
CY2021Q1 us-gaap Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
-13000000 USD
CY2022Q1 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
25000000 USD
CY2021Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
90000000 USD
CY2020Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
98000000 USD
CY2022Q1 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
6000000 USD
CY2021Q1 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
6000000 USD
CY2022Q1 us-gaap Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
3000000 USD
CY2021Q1 us-gaap Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
4000000 USD
CY2022Q1 aon Accounts Receivable Allowance For Credit Loss Foreign Currency Translation And Other
AccountsReceivableAllowanceForCreditLossForeignCurrencyTranslationAndOther
0 USD
CY2021Q1 aon Accounts Receivable Allowance For Credit Loss Foreign Currency Translation And Other
AccountsReceivableAllowanceForCreditLossForeignCurrencyTranslationAndOther
1000000 USD
CY2022Q1 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
93000000 USD
CY2020Q4 aon Stock Repurchase Program Authorized Amount Increase During Period
StockRepurchaseProgramAuthorizedAmountIncreaseDuringPeriod
5000000000 USD
CY2021Q1 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
101000000 USD
CY2022Q1 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
254000000 USD
CY2021Q4 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
361000000 USD
CY2022Q1 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
132000000 USD
CY2021Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
137000000 USD
CY2022Q1 aon Other Tax Assets Current
OtherTaxAssetsCurrent
48000000 USD
CY2021Q4 aon Other Tax Assets Current
OtherTaxAssetsCurrent
53000000 USD
CY2022Q1 us-gaap Other Assets Miscellaneous Current
OtherAssetsMiscellaneousCurrent
159000000 USD
CY2021Q4 us-gaap Other Assets Miscellaneous Current
OtherAssetsMiscellaneousCurrent
165000000 USD
CY2022Q1 us-gaap Other Assets Current
OtherAssetsCurrent
593000000 USD
CY2021Q4 us-gaap Other Assets Current
OtherAssetsCurrent
716000000 USD
CY2022Q1 us-gaap Contract With Customer Asset Net Noncurrent
ContractWithCustomerAssetNetNoncurrent
184000000 USD
CY2021Q4 us-gaap Contract With Customer Asset Net Noncurrent
ContractWithCustomerAssetNetNoncurrent
179000000 USD
CY2022Q1 us-gaap Income Taxes Receivable Noncurrent
IncomeTaxesReceivableNoncurrent
93000000 USD
CY2021Q4 us-gaap Income Taxes Receivable Noncurrent
IncomeTaxesReceivableNoncurrent
95000000 USD
CY2022Q1 us-gaap Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
57000000 USD
CY2021Q4 us-gaap Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
63000000 USD
CY2022Q1 us-gaap Long Term Investments
LongTermInvestments
62000000 USD
CY2021Q4 us-gaap Long Term Investments
LongTermInvestments
64000000 USD
CY2022Q1 us-gaap Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
124000000 USD
CY2021Q4 us-gaap Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
111000000 USD
CY2022Q1 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
520000000 USD
CY2021Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
512000000 USD
CY2022Q1 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
323000000 USD
CY2021Q4 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
321000000 USD
CY2022Q1 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
269000000 USD
CY2021Q4 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
149000000 USD
CY2022Q1 aon Operating Lease And Finance Lease Liability Current
OperatingLeaseAndFinanceLeaseLiabilityCurrent
207000000 USD
CY2021Q4 aon Operating Lease And Finance Lease Liability Current
OperatingLeaseAndFinanceLeaseLiabilityCurrent
213000000 USD
CY2022Q1 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
786000000 USD
CY2021Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
648000000 USD
CY2022Q1 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
1585000000 USD
CY2021Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
1331000000 USD
CY2022Q1 aon Contract With Customer Liability Including New Contract Revenue Recognized
ContractWithCustomerLiabilityIncludingNewContractRevenueRecognized
203000000 USD
CY2021Q1 aon Contract With Customer Liability Including New Contract Revenue Recognized
ContractWithCustomerLiabilityIncludingNewContractRevenueRecognized
171000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
48000000 USD
CY2017Q2 aon Stock Repurchase Program Authorized Amount Increase During Period
StockRepurchaseProgramAuthorizedAmountIncreaseDuringPeriod
5000000000 USD
CY2022Q1 us-gaap Accrued Income Taxes Noncurrent
AccruedIncomeTaxesNoncurrent
631000000 USD
CY2021Q4 us-gaap Accrued Income Taxes Noncurrent
AccruedIncomeTaxesNoncurrent
609000000 USD
CY2022Q1 us-gaap Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
42000000 USD
CY2021Q4 us-gaap Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
46000000 USD
CY2022Q1 us-gaap Contract With Customer Liability Noncurrent
ContractWithCustomerLiabilityNoncurrent
34000000 USD
CY2021Q4 us-gaap Contract With Customer Liability Noncurrent
ContractWithCustomerLiabilityNoncurrent
70000000 USD
CY2022Q1 aon Employee Related Liabilities Noncurrent
EmployeeRelatedLiabilitiesNoncurrent
57000000 USD
CY2021Q4 aon Employee Related Liabilities Noncurrent
EmployeeRelatedLiabilitiesNoncurrent
58000000 USD
CY2022Q1 us-gaap Other Accrued Liabilities Noncurrent
OtherAccruedLiabilitiesNoncurrent
107000000 USD
CY2021Q4 us-gaap Other Accrued Liabilities Noncurrent
OtherAccruedLiabilitiesNoncurrent
127000000 USD
CY2022Q1 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
871000000 USD
CY2021Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
910000000 USD
CY2021Q4 us-gaap Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Liability Noncurrent
TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiabilityNoncurrent
145000000 USD
CY2022Q1 us-gaap Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Liability Noncurrent
TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiabilityNoncurrent
145000000 USD
CY2022Q1 us-gaap Number Of Businesses Acquired
NumberOfBusinessesAcquired
1 acquisition
CY2021Q1 us-gaap Number Of Businesses Acquired
NumberOfBusinessesAcquired
0 acquisition
CY2022Q1 aon Number Of Dispositions
NumberOfDispositions
2 disposition
CY2021Q1 aon Number Of Dispositions
NumberOfDispositions
0 disposition
CY2022Q1 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
25000000 USD
CY2021Q1 us-gaap Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
0 USD
CY2021Q4 us-gaap Goodwill
Goodwill
8434000000 USD
CY2022Q1 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
74000000 USD
CY2022Q1 us-gaap Goodwill Written Off Related To Sale Of Business Unit
GoodwillWrittenOffRelatedToSaleOfBusinessUnit
7000000 USD
CY2022Q1 us-gaap Goodwill Foreign Currency Translation Gain Loss
GoodwillForeignCurrencyTranslationGainLoss
-5000000 USD
CY2022Q1 us-gaap Goodwill
Goodwill
8496000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
2768000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
2238000000 USD
CY2022Q1 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
530000000 USD
CY2021Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
2710000000 USD
CY2021Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
2218000000 USD
CY2021Q4 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
492000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year
FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
81000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
97000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
82000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
69000000 USD
CY2022Q1 aon Number Of Credit Facilities
NumberOfCreditFacilities
2 credit_facility
CY2022Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
33000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Amortization Expense After Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
120000000 USD
CY2022Q1 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
530000000 USD
CY2022Q1 aon Number Of Credit Facilities
NumberOfCreditFacilities
2 credit_facility
CY2022Q1 us-gaap Line Of Credit
LineOfCredit
0 USD
CY2022Q1 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.196
CY2021Q1 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.201
CY2012Q2 us-gaap Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
5000000000 USD
CY2014Q4 aon Stock Repurchase Program Authorized Amount Increase During Period
StockRepurchaseProgramAuthorizedAmountIncreaseDuringPeriod
5000000000 USD
CY2022Q1 aon Stock Repurchase Program Authorized Amount Increase During Period
StockRepurchaseProgramAuthorizedAmountIncreaseDuringPeriod
7500000000 USD
CY2022Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
215300000 shares
CY2022Q1 us-gaap Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
27500000000 USD
CY2022Q1 us-gaap Schedule Of Repurchase Agreements
ScheduleOfRepurchaseAgreements
<div style="margin-bottom:3pt;margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes the Company’s share repurchase activity (in millions, except per share data):</span></div><div style="margin-top:3pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:73.607%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.180%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.183%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2022</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Shares repurchased</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2.8 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">0.2 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Average price per share</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">294.47 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">217.70 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;border-bottom:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Repurchase costs recorded to retained earnings</span></div></td><td style="background-color:#cceeff;border-bottom:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">828 </span></td><td style="background-color:#cceeff;border-bottom:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;border-bottom:1pt solid #000;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">50 </span></td><td style="background-color:#cceeff;border-bottom:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div>
CY2022Q1 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
2800000 shares
CY2021Q1 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
200000 shares
CY2022Q1 us-gaap Treasury Stock Acquired Average Cost Per Share
TreasuryStockAcquiredAverageCostPerShare
294.47
CY2021Q1 us-gaap Treasury Stock Acquired Average Cost Per Share
TreasuryStockAcquiredAverageCostPerShare
217.70
CY2022Q1 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
828000000 USD
CY2021Q1 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
50000000 USD
CY2022Q1 us-gaap Stock Repurchase Program Remaining Authorized Repurchase Amount1
StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
8400000000 USD
us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
152400000 shares
us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
19100000000 USD
CY2021Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
228100000 shares
CY2021Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-30000000 USD
CY2021Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
227100000 shares
CY2022Q1 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
1100000 shares
CY2021Q1 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
1000000.0 shares
CY2022Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
216400000 shares
CY2022Q1 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
900000 shares
CY2021Q1 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
100000 shares
CY2022Q1 us-gaap Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
4000000 USD
CY2022Q1 us-gaap Reclassification From Aoci Current Period Before Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent
-32000000 USD
CY2022Q1 us-gaap Reclassification From Aoci Current Period Tax
ReclassificationFromAociCurrentPeriodTax
-8000000 USD
CY2022Q1 us-gaap Reclassification From Aoci Current Period Net Of Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
-24000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
28000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
-58000000 USD
CY2021Q1 us-gaap Reclassification From Aoci Current Period Before Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent
-37000000 USD
CY2021Q1 us-gaap Reclassification From Aoci Current Period Tax
ReclassificationFromAociCurrentPeriodTax
-9000000 USD
CY2021Q1 us-gaap Reclassification From Aoci Current Period Net Of Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
-28000000 USD
CY2021Q1 us-gaap Defined Benefit Plan Contributions By Employer
DefinedBenefitPlanContributionsByEmployer
50000000 USD
CY2022Q1 us-gaap Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
P2Y
CY2022Q1 us-gaap Defined Benefit Plan Contributions By Employer
DefinedBenefitPlanContributionsByEmployer
29000000 USD
CY2022Q1 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
119000000 USD
CY2021Q1 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
131000000 USD
CY2022Q1 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
1000000 USD
CY2021Q1 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
13000000 USD
CY2022Q1 us-gaap Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
74000000 USD
CY2021Q4 us-gaap Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
75000000 USD
CY2022Q1 us-gaap Guarantee Obligations Maximum Exposure
GuaranteeObligationsMaximumExposure
85000000 USD
CY2021Q4 us-gaap Guarantee Obligations Maximum Exposure
GuaranteeObligationsMaximumExposure
153000000 USD
CY2022Q1 us-gaap Number Of Reportable Segments
NumberOfReportableSegments
1 segment
CY2022Q1 aon Number Of Revenue Lines
NumberOfRevenueLines
4 revenue_line
CY2022Q1 us-gaap Number Of Reportable Segments
NumberOfReportableSegments
1 segment
CY2022Q1 aon Number Of Performance Metrics Measured
NumberOfPerformanceMetricsMeasured
4 performance_metric
CY2022Q1 us-gaap Number Of Reportable Segments
NumberOfReportableSegments
1 segment

Files In Submission

Name View Source Status
0001628280-22-011520-index-headers.html Edgar Link pending
0001628280-22-011520-index.html Edgar Link pending
0001628280-22-011520.txt Edgar Link pending
0001628280-22-011520-xbrl.zip Edgar Link pending
a221q12022.htm Edgar Link pending
a311certificationofceoq120.htm Edgar Link pending
a312certificationofcfoq120.htm Edgar Link pending
a321certificationofceoq120.htm Edgar Link pending
a322certificationofcfoq120.htm Edgar Link pending
aon-20220331.htm Edgar Link pending
aon-20220331.xsd Edgar Link pending
aon-20220331_cal.xml Edgar Link unprocessable
aon-20220331_def.xml Edgar Link unprocessable
aon-20220331_htm.xml Edgar Link completed
aon-20220331_lab.xml Edgar Link unprocessable
aon-20220331_pre.xml Edgar Link unprocessable
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R71.htm Edgar Link pending
R72.htm Edgar Link pending
R73.htm Edgar Link pending
R74.htm Edgar Link pending
R75.htm Edgar Link pending
R8.htm Edgar Link pending
R9.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending