Affiliated and Related Party Transactions - (Schedule of Affiliated Transactions - Balance Sheet) (Parenthetical) (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Derivative assets with affiliates	[1]	$ 33	$ 51
Other Current Assets [Member]
Related Party Transaction [Line Items]
Derivative assets with affiliates		2	8
Other Deferred Debits And Other Assets [Member]
Related Party Transaction [Line Items]
Derivative assets with affiliates		$ 31	$ 43

[1] Includes amounts recorded in other current assets of $2 million and $8 million as of December 31, 2023 and 2022, respectively, and amounts recorded in other deferred debits and other assets of $31 million and $43 million as of December 31, 2023 and 2022, respectively.