Goodwill and Other Intangible Assets
The changes in the net carrying amount of goodwill for the years ended December 31, 2025 and 2024, respectively, are as follows (in millions):
Risk CapitalHuman CapitalTotal
Balance as of January 1, 2024$6,227 $2,187 $8,414 
Goodwill related to current year acquisitions2,768 4,357 7,125 
Goodwill related to current year disposals(50)(32)(82)
Foreign currency translation and other(160)(63)(223)
Balance as of December 31, 2024$8,785 $6,449 $15,234 
Goodwill related to current year acquisitions478 53 531 
Goodwill related to current year disposals (1)
(7)(398)(405)
Goodwill related to prior year acquisitions(11)(10)(21)
Foreign currency translation and other306 152 458 
Balance as of December 31, 2025$9,551 $6,246 $15,797 
(1)Aon disposed of $398 million of Goodwill that related to the NFP Wealth business.
Other intangible assets by asset class are as follows (in millions):
20252024
As of December 31Gross
Carrying
Amount
Accumulated Amortization and Impairment
Net
Carrying
Amount (1)
Gross
Carrying
Amount
Accumulated Amortization and ImpairmentNet
Carrying
Amount
Customer-related and contract-based $7,738 $2,644 $5,094 $7,994 $2,050 $5,944 
Tradenames716 121 595 812 66 746 
Technology and other369 331 38 366 313 53 
Total$8,823 $3,096 $5,727 $9,172 $2,429 $6,743 
(1)Aon disposed of $760 million of net intangible assets that related to the NFP Wealth business.
Amortization and impairment of intangible asset charges from finite lived intangible assets were $778 million, $503 million, and $89 million for the years ended December 31, 2025, 2024, and 2023, respectively.
The estimated future amortization for finite-lived intangible assets as of December 31, 2025 is as follows (in millions):
Estimated Future Amortization
For the years ended
2026$670 
2027621 
2028568 
2029523 
2030475 
Thereafter2,870 
Total$5,727 

Historical Timeline

Fiscal YearFiled
2025Feb 13, 2026Showing above
2024Feb 18, 2025
2023Feb 16, 2024
2022Feb 17, 2023
2021Feb 18, 2022
2020Feb 19, 2021
2019Feb 14, 2020
2018Feb 19, 2019
2017Feb 20, 2018
2016Feb 23, 2017
2015Feb 22, 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.