Financial Instruments - Narrative (Details) bbl in Millions, MMBbls in Millions		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2022 USD ($) bbl	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) bbl MMBbls	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) MMBbls	Dec. 31, 2021 item	Dec. 31, 2021 bbl
Derivatives, Fair Value [Line Items]
Unrealized Gain On Derivative Contracts		$ 900,000,000		$ 900,000,000		$ 612,000,000
Investment Segment
Derivatives, Fair Value [Line Items]
Fair value of derivative instruments with credit risk related contingent features in a liability position		0		0		0
Investment Segment | Not designated as hedging instrument | Other assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized Gain On Derivative Contracts	[1]	891,000,000		891,000,000		611,000,000
Energy Segment | Not designated as hedging instrument | Other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		5,000,000		5,000,000		1,000,000
Unrealized Gain On Derivative Contracts		20,000,000		20,000,000		$ 2,000,000
Energy Segment | Not designated as hedging instrument | Cost of Goods and Service Benchmark [Member]
Derivatives, Fair Value [Line Items]
Gain (loss) on derivatives not designated as hedging instruments recognized in income		$ 68,000,000	$ 2,000,000	$ 66,000,000	$ 34,000,000
Future Contracts [Member] | Maximum
Derivatives, Fair Value [Line Items]
Derivative volume (barrels) | MMBbls				1		1
Forward Contracts [Member] | Energy Segment | Not designated as hedging instrument
Derivatives, Fair Value [Line Items]
Derivative, Number of Instruments Held		19		19			0	2
Credit Default Swap [Member] | Not designated as hedging instrument
Derivatives, Fair Value [Line Items]
Derivative volume (barrels) | MMBbls				1		0

[1] Excludes netting of cash collateral received and posted. The total collateral posted at June 30, 2022 and December 31, 2021 was $1,224 million and $1,906 million, respectively, across all counterparties, which are included in cash held at consolidated affiliated partnerships and restricted cash in the condensed consolidated balance sheets.