Acquisitions, Divestitures, Decommissioning and Restructuring Activities - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions			12 Months Ended
	May 04, 2021	Jan. 12, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Cash used in acquisitions, net of cash acquired			$ 826	$ 0	$ 0
Parsley Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Cash and cash equivalents (a)		$ 118
Accounts receivable		251
Derivatives		8
Proved properties		5,110
Unproved properties		5,627
Other property and equipment		118
Operating lease right-of-use assets		201
Other assets		22
Total assets acquired		11,455
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Accounts payable		338
Interest payable		49
Derivatives		317
Operating leases		201
Deferred income taxes		133
Long-term debt		3,238
Other liabilities		296
Total liabilities assumed		4,572
Net assets acquired		6,883
Cash used in acquisitions, net of cash acquired		$ 2
DoublePoint Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Cash and cash equivalents (a)	$ 58
Accounts receivable	131
Derivatives	0
Proved properties	3,929
Unproved properties	2,405
Other property and equipment	72
Operating lease right-of-use assets	2
Other assets	11
Total assets acquired	6,608
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Accounts payable	232
Interest payable	22
Derivatives	86
Operating leases	2
Deferred income taxes	0
Long-term debt	975
Other liabilities	57
Total liabilities assumed	1,374
Net assets acquired	5,234
Cash used in acquisitions, net of cash acquired	$ 1,000