| Goodwill and Other Intangible Assets The changes in the net carrying amount of goodwill for the nine months ended September 30, 2026 are as follows (in millions): | | | | | | | | | | | | | Risk Capital | Human Capital | Total | | Balance as of December 31, 2025 | $ | 9,551 | | $ | 6,246 | | $ | 15,797 | | | Goodwill related to current year acquisitions | 203 | | 12 | | 215 | | | | | | | Measurement period adjustments related to prior year acquisitions | (3) | | — | | (3) | | | Foreign currency translation and other | (81) | | (31) | | (112) | | | Balance as of September 30, 2026 | $ | 9,670 | | $ | 6,227 | | $ | 15,897 | |
Other intangible assets by asset class are as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | September 30, 2026 | | December 31, 2025 | | Gross Carrying Amount | | Accumulated
Amortization and Impairment | | Net Carrying Amount | | Gross Carrying Amount | | Accumulated
Amortization and Impairment | | Net Carrying Amount | | Customer-related and contract-based | $ | 7,972 | | | $ | 3,053 | | | $ | 4,919 | | | $ | 7,738 | | | $ | 2,644 | | | $ | 5,094 | | | Tradenames | 718 | | | 175 | | | 543 | | | 716 | | | 121 | | | 595 | | | Technology and other | 366 | | | 341 | | | 25 | | | 369 | | | 331 | | | 38 | | | Total | $ | 9,056 | | | $ | 3,569 | | | $ | 5,487 | | | $ | 8,823 | | | $ | 3,096 | | | $ | 5,727 | |
The estimated future amortization for finite-lived intangible assets as of September 30, 2026 is as follows (in millions): | | | | | | | Remainder of 2026 | $ | 174 | | | 2027 | 652 | | | 2028 | 598 | | | 2029 | 550 | | | 2030 | 502 | | | 2031 | 452 | | | Thereafter | 2,559 | | | | | Total | $ | 5,487 | |
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