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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Acquisitions, Divestitures and Other Transactions - Divestitures (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended	12 Months Ended
	Aug. 31, 2021	Feb. 29, 2020	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jul. 31, 2021	Dec. 31, 2018
Divestitures
Proceeds from sales of assets				$ 881	$ 429	$ 77
Deferred losses on hedges remaining in other comprehensive income				(14,177)	(11,190)	(14,485)		$ (13,319)
Gains/(losses) on asset sales and asset impairments, net				$ (592)	(719)	(28)
Crude Oil \| Natural Gas, Storage
Divestitures
Proceeds from sales of assets	$ 850
(Gains)/losses on asset sales and asset impairments, net
Divestitures
Gains/(losses) on asset sales and asset impairments, net					178
Disposed of by sale
Divestitures
Proceeds from sale, including proceeds attributable to agreements entered into in conjunction with sale of productive assets					451
Disposed of by sale \| (Gains)/losses on asset sales and asset impairments, net
Divestitures
Recognized gains/(losses) related to sale of assets, net						16
Recognized gains related to sale of assets						31
Recognized losses related to sales of assets						47
Pine Prairie and Southern Pines Natural Gas Storage Facilities \| Held for sale
Divestitures
Assets held for sale							$ 832
Pine Prairie and Southern Pines Natural Gas Storage Facilities \| Disposed of by sale \| (Gains)/losses on asset sales and asset impairments, net
Divestitures
Non-cash impairment losses upon classification to assets held for sale			$ 475
Los Angeles Basin Crude Oil Terminals \| Disposed of by sale \| Crude Oil
Divestitures
Proceeds from sales of assets					200
NGL Terminals \| Disposed of by sale
Divestitures
Proceeds attributable to multi-year supply agreement entered into in conjunction with sale of assets					22
NGL Terminals \| Disposed of by sale \| NGL
Divestitures
Proceeds from sale, including proceeds attributable to agreements entered into in conjunction with sale of productive assets					$ 163
North Dakota Storage Terminals \| Disposed of by sale \| Crude Oil
Divestitures
Proceeds from sales of assets						$ 77
Saddlehorn Pipeline Company, LLC
Divestitures
Ownership percentage sold		10.00%			10.00%
Proceeds from sale of equity method investments		$ 78			$ 78
AOCI cash flow hedge \| Pine Prairie and Southern Pines Natural Gas Storage Facilities \| Held for sale
Divestitures
Deferred losses on hedges remaining in other comprehensive income							$ 18