Derivatives and Risk Management Activities - Financial Impact (Details) - Derivatives Not Designated as a Hedge - Commodity Derivatives - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Impact of derivative activities recognized in earnings
Total gain (loss) on derivatives recognized in net income	$ (32)	$ 238	$ (639)
Product sales revenues
Impact of derivative activities recognized in earnings
Total gain (loss) on derivatives recognized in net income	13	179	(710)
Field operating costs
Impact of derivative activities recognized in earnings
Total gain (loss) on derivatives recognized in net income	$ (45)	$ 59	$ 71