CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Treasury Shares	Paid-In Capital	Accumulated Other Comprehensive Income	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2020		478
Beginning balance (in shares) at Dec. 31, 2020			79
Balance at beginning of period at Dec. 31, 2020	$ 2,216	$ 48	$ (1,823)	$ 1,804	$ 2	$ 2,185
Increase (Decrease) in Stockholders' Equity
Net income	126					126
Stock amortization and vesting	4			4
Common stock cash dividends	(40)					(40)
Ending balance (in shares) at Mar. 31, 2021		478
Ending balance (in shares) at Mar. 31, 2021			79
Balance at end of period at Mar. 31, 2021	2,306	$ 48	$ (1,823)	1,808	2	2,271
Beginning balance (in shares) at Dec. 31, 2020		478
Beginning balance (in shares) at Dec. 31, 2020			79
Balance at beginning of period at Dec. 31, 2020	2,216	$ 48	$ (1,823)	1,804	2	2,185
Increase (Decrease) in Stockholders' Equity
Net income	156
Ending balance (in shares) at Jun. 30, 2021		478
Ending balance (in shares) at Jun. 30, 2021			79
Balance at end of period at Jun. 30, 2021	2,300	$ 48	$ (1,823)	1,816	2	2,257
Beginning balance (in shares) at Dec. 31, 2020		478
Beginning balance (in shares) at Dec. 31, 2020			79
Balance at beginning of period at Dec. 31, 2020	2,216	$ 48	$ (1,823)	1,804	2	2,185
Increase (Decrease) in Stockholders' Equity
Treasury stock repurchases	(27)
Ending balance (in shares) at Dec. 31, 2021		893
Ending balance (in shares) at Dec. 31, 2021			79
Balance at end of period at Dec. 31, 2021	11,738	$ 89	$ (1,826)	10,911	1	2,563
Beginning balance (in shares) at Mar. 31, 2021		478
Beginning balance (in shares) at Mar. 31, 2021			79
Balance at beginning of period at Mar. 31, 2021	2,306	$ 48	$ (1,823)	1,808	2	2,271
Increase (Decrease) in Stockholders' Equity
Net income	30					30
Stock amortization and vesting	8			8
Common stock cash dividends	(44)					(44)
Ending balance (in shares) at Jun. 30, 2021		478
Ending balance (in shares) at Jun. 30, 2021			79
Balance at end of period at Jun. 30, 2021	2,300	$ 48	$ (1,823)	1,816	2	2,257
Beginning balance (in shares) at Dec. 31, 2021		893
Beginning balance (in shares) at Dec. 31, 2021			79
Balance at beginning of period at Dec. 31, 2021	11,738	$ 89	$ (1,826)	10,911	1	2,563
Increase (Decrease) in Stockholders' Equity
Net income	608					608
Exercise of stock options	6			6
Stock amortization and vesting	$ 10			10
Treasury stock repurchases (in shares)	8
Treasury stock repurchases	$ (192)
Common stock cash dividends	(455)					(455)
Preferred stock dividends	(1)					(1)
Other comprehensive income	4				4
Ending balance (in shares) at Mar. 31, 2022		893
Ending balance (in shares) at Mar. 31, 2022			87
Balance at end of period at Mar. 31, 2022	11,718	$ 89	$ (2,018)	10,927	5	2,715
Beginning balance (in shares) at Dec. 31, 2021		893
Beginning balance (in shares) at Dec. 31, 2021			79
Balance at beginning of period at Dec. 31, 2021	11,738	$ 89	$ (1,826)	10,911	1	2,563
Increase (Decrease) in Stockholders' Equity
Net income	$ 1,837
Treasury stock repurchases (in shares)	20
Treasury stock repurchases	$ (513)
Ending balance (in shares) at Jun. 30, 2022		894
Ending balance (in shares) at Jun. 30, 2022			99
Balance at end of period at Jun. 30, 2022	12,191	$ 89	$ (2,339)	10,976	5	3,460
Beginning balance (in shares) at Mar. 31, 2022		893
Beginning balance (in shares) at Mar. 31, 2022			87
Balance at beginning of period at Mar. 31, 2022	11,718	$ 89	$ (2,018)	10,927	5	2,715
Increase (Decrease) in Stockholders' Equity
Net income	1,229					1,229
Exercise of stock options	3			3
Stock amortization and vesting	18			18
Conversion of Cimarex redeemable preferred stock (in shares)		1
Conversion of Cimarex redeemable preferred stock	28			28
Treasury stock repurchases (in shares)			12
Treasury stock repurchases	(321)		$ (321)
Common stock cash dividends	(484)					(484)
Other comprehensive income	0
Ending balance (in shares) at Jun. 30, 2022		894
Ending balance (in shares) at Jun. 30, 2022			99
Balance at end of period at Jun. 30, 2022	$ 12,191	$ 89	$ (2,339)	$ 10,976	$ 5	$ 3,460