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Acquisitions and Dispositions of Businesses
 3 Months Ended
Mar. 31, 2026
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]  
Acquisitions and Dispositions of Businesses Acquisitions and Dispositions of Businesses
Completed Acquisitions
Total acquisitions completed by the Company for the three months ended March 31, 2026 and 2025 were as follows. Acquisitions that impact multiple segments are categorized by the segment primarily impacted.
Three Months Ended March 31,
2026
2025
Risk Capital
5
6
Human Capital
—
1
Total 57
The following table includes the preliminary fair values of consideration transferred, assets acquired, and liabilities assumed as a result of the Company’s acquisitions completed in 2026 (in millions):
Three Months Ended
March 31, 2026
Consideration transferred:
Cash$347 
Deferred and contingent consideration50 
Aggregate consideration transferred$397 
Assets acquired:
Goodwill190 
Intangible assets263 
Other assets (1)
84 
Total assets acquired537 
Liabilities assumed:
Total liabilities assumed140 
Net assets acquired$397 
(1)Includes Cash and cash equivalents of $29 million and $24 million in funds held on behalf of clients.

The results of operations of these acquisitions are included in the Condensed Consolidated Financial Statements as of the respective acquisition dates. The Company’s results of operations would not have been materially different if these acquisitions had been reported from the beginning of the period in which they were acquired.
2026 Significant Acquisitions
On March 16, 2026, the Company completed the acquisition of 100% of the share capital of ShoreOne Insurance Managers, Inc., a coastal-focused homeowners and flood insurance broker based in the U.S, in the Risk Capital segment.
2025 Significant Acquisitions
On January 1, 2025, the Company completed the acquisition of 100% of the partnership interests and share capital of Griffiths & Armour, an insurance broker in the United Kingdom in the Risk Capital segment.
Completed Dispositions
The Company completed no dispositions during the three months ended March 31, 2026 and 2025.
The pretax gains recognized related to dispositions for the three months ended March 31, 2026 were $20 million, which related to the disposition of the NFP wealth business, as defined below, completed in the prior year. There were no pretax gains from dispositions for the three months ended March 31, 2025. There were no pretax losses from dispositions for the three months ended March 31, 2026 or 2025.
2025 Significant Dispositions
On October 30, 2025, Aon completed the sale of a significant majority of NFP’s Wealth businesses within our Human Capital segment (the “NFP Wealth business”). Total proceeds received on closing was $2.3 billion, and a pre-tax gain of $1.2 billion was recognized within Other income (expense) on the Consolidated Statement of Income for the year ended December 31, 2025. The major classes of assets sold included Intangible assets, net of $760 million and Goodwill of $398 million.