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v3.25.1

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Carrying value of investment | $ 269 |  | $ 257
Exchange traded equity securities | 22 |  | 19
Gain (loss) on equity securities | 3 | $ 2 |
Equity investments without readily determinable market value | 17 |  | 16
Private Equity Investments |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Carrying value of investment | 195 |  | 182
Equity method investment income (loss) | 2 | $ 1 |
Commitments for potential future investments | 105 |  |
Private Insurance and Consulting |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Carrying value of investment | $ 74 |  | $ 75
Minimum |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Revenue target period (in years) | 2 years | 2 years |
Maximum |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Revenue target period (in years) | 4 years | 4 years |

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