Price Risk Management Activities, Hedging Instruments by Consolidated Balance Sheet Location (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Derivatives Designated as Hedging Instruments [Member] | Commodity Contracts [Member] | Receivables, Net [Member]
Fair Values of Derivative Instruments
Derivative asset, fair value, gross asset	$ 61	$ 3
Derivative asset, fair value, gross liability	44	26
Derivatives Not Designated as Hedging Instruments [Member]
Fair Values of Derivative Instruments
Derivative asset, fair value, gross asset	773	524
Derivative liability, fair value, gross liability	667	461
Derivatives Not Designated as Hedging Instruments [Member] | Commodity Contracts [Member] | Receivables, Net [Member]
Fair Values of Derivative Instruments
Derivative asset, fair value, gross asset	769	519
Derivative asset, fair value, gross liability	661	446
Derivatives Not Designated as Hedging Instruments [Member] | Physical Purchase Contracts [Member] | Inventories [Member]
Fair Values of Derivative Instruments
Derivative asset, fair value, gross asset	4	4
Derivative asset, fair value, gross liability	4	5
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Currency Contracts [Member] | Receivables, Net [Member]
Fair Values of Derivative Instruments
Derivative asset, fair value, gross asset	0	1
Derivative asset, fair value, gross liability	0	0
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Currency Contracts [Member] | Accrued Expenses [Member]
Fair Values of Derivative Instruments
Derivative liability, fair value, gross asset	0	0
Derivative liability, fair value, gross liability	$ 2	$ 10