XML 42 R30.htm IDEA: XBRL DOCUMENT
v3.25.3

Acquisitions and Dispositions of Businesses (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] |
Schedule of Acquisitions | Total acquisitions completed by the Company for the three and nine months ended September 30, 2025 and 2024 were as follows. Acquisitions that impact multiple segments are categorized by the segment primarily impacted.
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Risk Capital |  | 1 |  | 3 |  | 8 |  | 8
Human Capital |  | 4 |  | 5 |  | 6 |  | 8
Total |  | 5 |  | 8 |  | 14 |  | 16
Schedule of Consideration Transferred and Preliminary Value of Intangible Assets | The following table includes the preliminary fair values of consideration transferred, assets acquired, and liabilities assumed as a result of the Company’s acquisitions (in millions):
|  | Nine Months Ended September 30, 2025
Consideration transferred: |  |
Cash (1) |  | $ | 788 |
Deferred and contingent consideration |  | 43 |
Aggregate consideration transferred |  | $ | 831 |
Assets acquired: |  |
Goodwill |  | 476 |
Intangible assets |  | 379 |
Other assets (2) |  | 198 |
Total assets acquired |  | 1,053 |
Liabilities assumed: |  |
Total liabilities assumed |  | 222 |
Net assets acquired |  | $ | 831 |
(1)As of December 31, 2024, includes $416 million of consideration paid into an escrow account related to the acquisition of Griffiths & Armour, which closed on January 1, 2025. (2)Includes Cash and cash equivalents of $39 million and $62 million in funds held on behalf of clients. The fair values of consideration transferred, assets acquired, liabilities assumed, and redeemable and nonredeemable noncontrolling interests are shown below (in millions):
|  | NFP Acquisition |  |
Consideration transferred: |  |  |  |
Cash |  | $ | 3,247 |  |  |
Class A ordinary shares issued |  | 5,882 |  |  |
Aggregate consideration transferred |  | $ | 9,129 |  |  |
Assets acquired: |  |  |  |
Goodwill |  | 6,838 |  |  |
Intangible assets |  | 6,775 |  |  |
Other assets (1) |  | 1,362 |  |  |
Total assets acquired |  | 14,975 |  |  |
Liabilities assumed: |  |  |  |
Long-term debt |  | 3,422 |  |  |
Deferred tax liabilities (2) |  | 1,013 |  |  |
Other liabilities (3) |  | 1,218 |  |  |
Total liabilities assumed |  | 5,653 |  |  |
Less: Fair value of redeemable noncontrolling interests (4) |  | (108) |  |  |
Less: Fair value of nonredeemable noncontrolling interests |  | (85) |  |  |
Net assets acquired |  | $ | 9,129 |  |  |
(1)Includes Cash and cash equivalents of $294 million and $277 million in funds held on behalf of clients. (2)As of September 30, 2025, the NFP deferred tax liability related to the U.S. has been netted with the Aon deferred tax asset related to the U.S. and presented as a net deferred tax asset on the Consolidated Statements of Financial Position. (3)Includes Accounts payable and accrued liabilities of $283 million and $125 million of Non-current operating lease liabilities. (4)The fair value of the noncontrolling interests acquired was estimated using a DCF model under the income approach and used estimated financial pro jections developed by management applying market participant assumptions.
Schedule of Pro Forma Information | The unaudited pro forma financial information is presented for informational purposes only and is not indicative of the results of operations that would have been achieved if the NFP Transaction had taken place on the date indicated or of results that may occur in the future (in millions):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2024 | 2023 |  | 2024 | 2023
Revenue |  | $ | 3,721 |  | $ | 3,506 |  |  | $ | 12,249 |  | $ | 11,605 |
Net income attributable to Aon shareholders |  | 343 | 328 |  | 1,745 | 1,596
Schedule of Dispositions | Total dispositions completed by the Company for the three and nine months ended September 30, 2025 and 2024 were as follows. Dispositions that impact multiple segments are categorized by the segment primarily impacted.
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Risk Capital |  | 1 |  | 1 |  | 1 |  | 3
Human Capital |  | 1 |  | 1 |  | 2 |  | 2
Total |  | 2 |  | 2 |  | 3 |  | 5

X
- Definition Schedule Of Disposition Of Business + References No definition available. + Details
Name: | aon_ScheduleOfDispositionOfBusinessTableTextBlock
Namespace Prefix: | aon_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of pro forma revenue and earnings for business combination or aggregate of series of individually immaterial business combinations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-8 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 49 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479303/805-10-55-49 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-3 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(2) -SubTopic 10 -Topic 805 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(3) -SubTopic 10 -Topic 805 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-2 + Details
Name: | us-gaap_BusinessAcquisitionProFormaInformationTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_BusinessCombinationAndAssetAcquisitionAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of business combination. Includes, but is not limited to, recognized asset and liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-8 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 41 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479303/805-10-55-41 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479581/805-30-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479581/805-30-50-1 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-1 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-3 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-2 + Details
Name: | us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of asset acquired and liability assumed in business combination and recognized at acquisition date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-1 + Details
Name: | us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration