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v3.23.1

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Carrying value of investment | $ 214 |  | $ 215
Gain (loss) on equity securities | (1) | $ 9 |
Equity investments without readily determinable market value | 43 |  | 42
Private Insurance and Consulting |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Carrying value of investment | 49 |  | 56
Private Equity Investments |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Carrying value of investment | 165 |  | 159
Equity method investment income | 3 | $ 17 |
Commitments for potential future investments | 159 |  |
Equity Investments |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Equity securities | 16 |  | $ 17
Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Proceeds from contingent purchase consideration, asset | $ 3 |  |
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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