Commitments and Contingencies (Narrative) (Details)		3 Months Ended
	Jun. 12, 2018 individual company	Mar. 31, 2022 USD ($)
Commitments And Contingencies [Line Items]
Obligation under transportation agreements		$ 10,158,000,000
Guarantee obligations relative to the firms transportation agreements and gathering project and services		$ 877,000,000
Contractual commitments payments, term (in years)		2 years
Loss contingency, number of individuals and entities | individual	51
Loss contingency, number of defendants | company	15
Material liabilities recognized		$ 0
Pending regulatory approval and/or construction
Commitments And Contingencies [Line Items]
Obligation under transportation agreements		857,000,000
Indigo Agreement
Commitments And Contingencies [Line Items]
Obligation under transportation agreements		34,000,000
Liability for the estimated future payments		17,000,000
Purchase or volume commitments with gathering fresh water and sand
Commitments And Contingencies [Line Items]
Obligation under transportation agreements		$ 35,000,000