Equity Method Investments (Martinez Renewables LLC) (Details) - USD ($) $ in Millions		12 Months Ended
	Sep. 21, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2023
Schedule of Equity Method Investments [Line Items]
Net gain on disposal of assets		$ 28	$ 217	$ 1,061
Proceeds from equity method investment, distribution, return of capital		161	275	515
Equity method investments		$ 6,857	$ 6,260
Martinez Renewables LLC
Schedule of Equity Method Investments [Line Items]
Fair value of assets contributed	$ 1,471
Net gain on disposal of assets	549			$ 549
Proceeds from equity method investment, distribution, return of capital	500
Equity method investments					$ 971
Martinez Renewables LLC | Neste
Schedule of Equity Method Investments [Line Items]
Payments to acquire interest in joint venture	$ 728