Derivatives - Schedule of Derivative Instruments in Statement of Financial Position, Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), fair value, net	$ (1,391)	$ (2,724)
Derivative assets (liabilities), offsetting instruments	0	0
Derivative assets (liabilities): financial collateral (received) pledged	183	944
Derivative assets (liabilities), net amounts	(1,208)	(1,780)
Current assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, net	2,587	3,645
Noncurrent assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, net	740	577
Current liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value, net	(3,351)	(5,258)
Noncurrent liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value, net	(1,367)	(1,688)
Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), fair value, gross assets	3,226	4,144
Derivative assets (liabilities), fair value, gross liability	(4,686)	(6,884)
Derivative assets, offsetting instruments	(2,532)	(3,519)
Derivative liability, offsetting instruments	2,532	3,519
Derivative assets, financial collateral (received) pledged	(50)	(26)
Derivative liabilities, financial collateral (received) pledged	233	970
Derivative assets, net amounts	644	599
Derivative liability, net amounts	(1,921)	(2,395)
Commodity Contracts | Current assets
Derivatives, Fair Value [Line Items]
Derivative assets, far value, gross asset	(2,551)	(3,585)
Derivative liabilities, far value, gross asset	(2)	(7)
Commodity Contracts | Noncurrent assets
Derivatives, Fair Value [Line Items]
Derivative assets, far value, gross asset	(677)	(565)
Derivative liabilities, far value, gross asset	(1)	(1)
Commodity Contracts | Current liabilities
Derivatives, Fair Value [Line Items]
Derivative assets, far value, gross asset	0	(1)
Derivative liabilities, far value, gross asset	(3,333)	(5,233)
Commodity Contracts | Noncurrent liabilities
Derivatives, Fair Value [Line Items]
Derivative assets, far value, gross asset	(2)	(5)
Derivative liabilities, far value, gross asset	(1,356)	(1,659)
Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), fair value, gross assets	96	64
Derivative assets (liabilities), fair value, gross liability	(27)	(48)
Derivative assets, offsetting instruments	(28)	(28)
Derivative liability, offsetting instruments	28	28
Derivative assets, financial collateral (received) pledged	0	0
Derivative liabilities, financial collateral (received) pledged	0	0
Derivative assets, net amounts	68	36
Derivative liability, net amounts	1	(20)
Interest Rate Swaps | Current assets
Derivatives, Fair Value [Line Items]
Derivative assets, far value, gross asset	(34)	(53)
Derivative liabilities, far value, gross asset	0	0
Interest Rate Swaps | Noncurrent assets
Derivatives, Fair Value [Line Items]
Derivative assets, far value, gross asset	(62)	(11)
Derivative liabilities, far value, gross asset	0	0
Interest Rate Swaps | Current liabilities
Derivatives, Fair Value [Line Items]
Derivative assets, far value, gross asset	0	0
Derivative liabilities, far value, gross asset	(18)	(24)
Interest Rate Swaps | Noncurrent liabilities
Derivatives, Fair Value [Line Items]
Derivative assets, far value, gross asset	0	0
Derivative liabilities, far value, gross asset	$ (9)	$ (24)