The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Name:	us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Impairment of Long-Lived Assets (Details) - USD ($) $ in Millions		3 Months Ended
	Apr. 08, 2020	Mar. 31, 2020
Atoka
Impaired Long-Lived Assets Held and Used [Line Items]
Ownership interest (as a percentage)		50.00%
Atoka \| Gathering and Processing
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Property, Plant and Equipment		$ 16
Subsequent Event \| Gathering and Processing
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Property, Plant and Equipment	$ 20