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Fair Value of Financial Instruments - Narrative (Details) $ in Millions | Sep. 30, 2025 USD ($) $ / Contract | Dec. 31, 2024 USD ($)
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Investments in unconsolidated affiliates | $ 4,925 | $ 3,731
Title |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Investments in unconsolidated affiliates | $ 193 | $ 166
Credit linked note | Valuation, Income Approach |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative, strike price | $ / Contract | 0 |

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