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Fair Value Measurements - Significant Unobservable Inputs - Freestanding Derivatives (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Fair Value Inputs and Valuation Techniques |  |
Adjustment Resulting from Broker Prices Received | $ 0 |
Significant Unobservable Inputs (Level 3) |  |
Fair Value Inputs and Valuation Techniques |  |
Derivative Assets (Liabilities), at Fair Value, Net | $ 1 | $ 1

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