Other Property and Equipment - Held for Use and Estimated Useful Lives (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Feb. 09, 2021	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Other property and equipment	$ 495	$ 499	$ 1,754
Total other property and equipment, at cost	495		1,754
Less: accumulated depreciation	(26)		(799)
Total other property and equipment, net	469		955
Buildings and improvements
Property, Plant and Equipment [Abstract]
Other property and equipment	$ 330		1,038
Buildings and improvements | Minimum
Property, Plant and Equipment [Abstract]
Estimated Useful Life	10 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Abstract]
Estimated Useful Life	39 years
Computer equipment
Property, Plant and Equipment [Abstract]
Other property and equipment	$ 87		356
Estimated Useful Life	5 years
Land
Property, Plant and Equipment [Abstract]
Other property and equipment	$ 37		113
Sand mine
Property, Plant and Equipment [Abstract]
Other property and equipment	$ 2		81
Sand mine | Minimum
Property, Plant and Equipment [Abstract]
Estimated Useful Life	10 years
Sand mine | Maximum
Property, Plant and Equipment [Abstract]
Estimated Useful Life	30 years
Compressor
Property, Plant and Equipment [Abstract]
Total other property and equipment, at cost	$ 0		36
Assets under finance lease			27
Assets under finance lease, accumulated amortization			18
Compressor | Minimum
Property, Plant and Equipment [Abstract]
Estimated Useful Life	3 years
Compressor | Maximum
Property, Plant and Equipment [Abstract]
Estimated Useful Life	20 years
Other
Property, Plant and Equipment [Abstract]
Other property and equipment	$ 39		$ 130
Other | Minimum
Property, Plant and Equipment [Abstract]
Estimated Useful Life	5 years
Other | Maximum
Property, Plant and Equipment [Abstract]
Estimated Useful Life	20 years