Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets [Abstract]
Proved oil and gas properties carrying amount	$ 619	$ 59	$ 146
Assets written down during the period - fair value at end of period	324	15	26
Pretax impairment charges	295	44	$ 120
Aggregate principal amount of current and long-term debt	4,640	3,640
Estimated fair value of debt	$ 4,441	$ 3,574