Other Financial Information - Other Current Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Current affiliate obligation	$ 48	$ 52
Current operating lease liability	15	20
Other	54	49
Total other current liabilities	117	121
Capital expenditures included in accounts payable	$ 57	$ 116