Goodwill and Other Intangibles
The Company is required to assess goodwill and any indefinite-lived intangible assets for impairment annually, or more frequently if circumstances indicate an impairment may have occurred. The Company performs the annual impairment assessment for each of its reporting units during the third quarter of each year. The reporting unit level is defined at the same level as the Company's operating segments. A company can assess qualitative factors to determine whether it is necessary to perform a quantitative goodwill impairment test. Alternatively, a company may elect to proceed directly to the quantitative goodwill impairment test. In the third quarter of 2025, the Company completed a qualitative impairment assessment, updated for significant considerations at year-end, and concluded that goodwill was not impaired. As part of its assessment, the Company considered numerous factors, including:
that the fair value of each reporting unit exceeds its carrying value by a substantial margin based on its most recent quantitative assessment in 2023;
whether significant acquisitions or dispositions occurred which might alter the fair value of its reporting units;
macroeconomic conditions and their potential impact on reporting unit fair values;
actual performance compared with budget and prior projections used in its estimation of reporting unit fair values;
industry and market conditions; and
the year-over-year change in the Company’s share price.
Other intangible assets that are not deemed to have an indefinite life are amortized over their estimated lives and assessed for impairment upon the occurrence of certain triggering events in accordance with applicable accounting literature. Based on its assessment, the Company concluded that other intangible assets were not impaired. The Company had no indefinite lived identified intangible assets at December 31, 2025 and 2024.
Changes in the carrying amount of goodwill are as follows: 
(In millions)20252024
Balance at January 1,$23,306 $17,231 
Goodwill acquired (a)562 6,407 
Other adjustments (b)469 (332)
Balance at December 31,$24,337 $23,306 
(a)Includes $5.2 billion from the acquisition of McGriff in 2024.
(b)Primarily reflects the impact of foreign exchange.
The goodwill from acquisitions in 2025 and 2024 consists largely of the synergies and economies of scale expected from combining the operations of the Company and the acquired entities and the trained assembled workforce acquired.
The goodwill acquired in 2025 included approximately $264 million and $29 million in the Risk and Insurance Services and Consulting segments, respectively, which is deductible for tax purposes. The goodwill acquired in 2024 included approximately $1.8 billion and $88 million in the Risk and Insurance Services and Consulting segments, respectively, which is deductible for tax purposes.
Goodwill allocable to the Company’s reportable segments at December 31, 2025, is $19.5 billion for Risk and Insurance Services and $4.8 billion for Consulting.
The gross cost and accumulated amortization of other intangible assets at December 31, 2025 and 2024 are as follows:
(In millions)20252024

Gross
Cost
Accumulated
Amortization
Net
Carrying
Amount
Gross
Cost
Accumulated
Amortization
Net
Carrying
Amount
Customer relationships (a)$7,091 $2,422 $4,669 $6,650 $1,961 $4,689 
Other (a) (b)476 399 77 476 345 131 
Other intangible assets$7,567 $2,821 $4,746 $7,126 $2,306 $4,820 
(a)Customer relationships and Other include $2.1 billion and $60 million, respectively from the acquisition of McGriff in 2024.
(b)Primarily non-compete agreements, trade names and developed technology.
Aggregate amortization expense was $549 million, $377 million, and $343 million for the years ended December 31, 2025, 2024 and 2023, respectively.
The estimated future aggregate amortization expense is as follows:
For the Years Ended December 31,
(In millions)
Estimated Expense
2026$544 
2027520 
2028479 
2029436 
2030433 
Subsequent years2,334 
 Total future amortization$4,746 

Historical Timeline

Fiscal YearFiled
2025Feb 9, 2026Showing above
2024Feb 10, 2025
2023Feb 12, 2024
2022Feb 13, 2023
2021Feb 16, 2022
2020Feb 17, 2021
2019Feb 20, 2020
2018Feb 21, 2019
2017Feb 22, 2018
2016Feb 24, 2017
2015Feb 24, 2016

About Goodwill & Intangibles Disclosures

Goodwill and intangible asset disclosures reveal the premium paid in acquisitions and how management assesses whether that premium retains its value. Since goodwill is no longer amortized under US GAAP, the annual impairment test is the only mechanism that adjusts carrying values downward — making the assumptions behind that test critically important for investors.

Key signals: a history of goodwill impairments suggests management consistently overpays for acquisitions. Watch the gap between reporting unit fair value and carrying amount — when fair value exceeds carrying amount by less than 10-20%, a small decline in business performance could trigger a write-down. For finite-lived intangibles, examine useful life assumptions across customer relationships, technology, and trade names; aggressive estimates inflate near-term earnings. Compare total intangibles-to-total-assets ratios against peers to assess acquisition dependency. Rising goodwill as a percentage of equity can signal balance sheet fragility.