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Fair Value Measurements - Significant Unobservable Inputs Freestanding Derivatives (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation    
Adjustment Resulting from Broker Prices Received $ 0  
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation    
Derivative Assets (Liabilities), at Fair Value, Net $ 1 $ 1