| Goodwill and Other Intangible Assets The changes in the net carrying amount of goodwill for the three months ended March 31, 2025 are as follows (in millions): | | | | | | | | | | | | | Risk Capital | Human Capital | Total | | Balance as of December 31, 2024 | $ | 8,785 | | $ | 6,449 | | $ | 15,234 | | | Goodwill related to current year acquisitions | 340 | | 11 | | 351 | | | | | | | Measurement period adjustments related to prior year acquisitions | (8) | | (13) | | (21) | | | Foreign currency translation and other | 83 | | 50 | | 133 | | | Balance as of March 31, 2025 | $ | 9,200 | | $ | 6,497 | | $ | 15,697 | |
Other intangible assets by asset class are as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2025 | | December 31, 2024 | | | 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 | $ | 8,327 | | | $ | 2,251 | | | $ | 6,076 | | | $ | 7,994 | | | $ | 2,050 | | | $ | 5,944 | | | Tradenames | 820 | | | 86 | | | 734 | | | 812 | | | 66 | | | 746 | | | Technology and other | 379 | | | 324 | | | 55 | | | 366 | | | 313 | | | 53 | | | Total | $ | 9,526 | | | $ | 2,661 | | | $ | 6,865 | | | $ | 9,172 | | | $ | 2,429 | | | $ | 6,743 | |
The estimated future amortization for finite-lived intangible assets as of March 31, 2025 is as follows (in millions): | | | | | | | Remainder of 2025 | $ | 598 | | | 2026 | 733 | | | 2027 | 674 | | | 2028 | 619 | | | 2029 | 571 | | | 2030 | 518 | | | Thereafter | 3,152 | | | | | Total | $ | 6,865 | |
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