Document and Entity Information | Oct. 19, 2022 |
Document And Entity Information [Line Items] | |
Amendment Flag | false |
Entity Central Index Key | 0000315293 |
Document Type | 8-K |
Document Period End Date | Oct. 19, 2022 |
Entity Registrant Name | Aon plc |
Entity Incorporation State Country Code | L2 |
Entity File Number | 1-7933 |
Entity Tax Identification Number | 98-1539969 |
Entity Address, Address Line One | Metropolitan Building |
Entity Address, Address Line Two | James Joyce Street |
Entity Address, City or Town | Dublin 1 |
Entity Address, Country | IE |
Entity Address, Postal Zip Code | D01 K0Y8 |
City Area Code | 353 1 |
Local Phone Number | 266 6000 |
Written Communications | false |
Soliciting Material | false |
Pre Commencement Tender Offer | false |
Pre Commencement Issuer Tender Offer | false |
Entity Emerging Growth Company | false |
Capital Unit, Class A [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Class A Ordinary Shares, $0.01 nominal value |
Trading Symbol | AON |
Security Exchange Name | NYSE |
Guarantees Of Aon Plcs 4.000 Senior Notes Due 2023 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon plc’s 4.00% Senior Notes due 2023 |
Trading Symbol | AON23 |
Security Exchange Name | NYSE |
Guarantees Of Aon Plcs 3.500 Senior Notes Due 2024 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon plc’s 3.50% Senior Notes due 2024 |
Trading Symbol | AON24 |
Security Exchange Name | NYSE |
Guarantees Of Aon Plcs 3.875 Senior Notes Due 2025 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon plc’s 3.875% Senior Notes due 2025 |
Trading Symbol | AON25 |
Security Exchange Name | NYSE |
Guarantees Of Aon Plcs 2.875 Senior Notes Due 2026 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon plc’s 2.875% Senior Notes due 2026 |
Trading Symbol | AON26 |
Security Exchange Name | NYSE |
Guarantees Of Aon Corporation And Aon Global Holdings Plcs 2.85 Senior Notes Due 20276 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon Corporation and Aon Global Holdings plc’s 2.85% Senior Notes due 2027 |
Trading Symbol | AON27 |
Security Exchange Name | NYSE |
Guarantees Of Aon Corporation And Aon Global Holdings Plcs 2.05 Senior Notes Due 20311 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon Corporation and Aon Global Holdings plc’s 2.05% Senior Notes due 2031 |
Trading Symbol | AON31 |
Security Exchange Name | NYSE |
Guarantees Of Aon Corporation And Aon Global Holdings Plcs 2.60 Senior Notes Due 20312 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon Corporation and Aon Global Holdings plc’s 2.60% Senior Notes due 2031 |
Trading Symbol | AON31A |
Security Exchange Name | NYSE |
Guarantees Of Aon Corporation And Aon Global Holdings Plcs 5.00 Senior Notes Due 20323 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon Corporation and Aon Global Holdings plc’s 5.00% Senior Notes due 2032 |
Trading Symbol | AON32 |
Security Exchange Name | NYSE |
Guarantees Of Aon Plcs 4.250 Senior Notes Due 2042 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon plc’s 4.25% Senior Notes due 2042 |
Trading Symbol | AON42 |
Security Exchange Name | NYSE |
Guarantees Of Aon Plcs 4.450 Senior Notes Due 2043 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon plc’s 4.45% Senior Notes due 2043 |
Trading Symbol | AON43 |
Security Exchange Name | NYSE |
Guarantees Of Aon Plcs 4.600 Senior Notes Due 2044 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon plc’s 4.60% Senior Notes due 2044 |
Trading Symbol | AON44 |
Security Exchange Name | NYSE |
Guarantees Of Aon Plcs 4.750 Senior Notes Due 2045 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon plc’s 4.75% Senior Notes due 2045 |
Trading Symbol | AON45 |
Security Exchange Name | NYSE |
Guarantees Of Aon Corporation And Aon Global Holdings Plcs 2.90 Senior Notes Due 20514 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon Corporation and Aon Global Holdings plc’s 2.90% Senior Notes due 2051 |
Trading Symbol | AON51 |
Security Exchange Name | NYSE |
Guarantees Of Aon Corporation And Aon Global Holdings Plcs 3.90 Senior Notes Due 20525 [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Guarantees of Aon Corporation and Aon Global Holdings plc’s 3.90% Senior Notes due 2052 |
Trading Symbol | AON52 |
Security Exchange Name | NYSE |