STATEMENTS OF CONSOLIDATED EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	[1]	Noncontrolling Interest in Consolidated Subsidiaries
Beginning Balance (in shares) at Dec. 31, 2019		255,171
Beginning Balance at Dec. 31, 2019	$ 9,803,588	$ 7,818,205	$ (32,507)	$ 2,023,089	$ (5,199)		$ 0
Comprehensive (loss) income, net of tax:
Net (loss) income	(958,809)			(958,799)			(10)
Other postretirement benefits liability adjustment, net of tax	(156)				(156)
Dividends	(7,664)			(7,664)
Share-based compensation plans (in shares)		174
Share-based compensation plans	22,070	$ 18,911	3,159
Convertible Notes settlements (Note 10)	0
Capped Call Transactions (Note 10)	(32,500)	$ (32,500)
Issuance of common stock (in shares)		23,000
Issuance of common stock	340,923	$ 340,923
Contribution from noncontrolling interest	7,500						7,500
Ending Balance (in shares) at Dec. 31, 2020		278,345
Ending Balance at Dec. 31, 2020	9,174,952	$ 8,145,539	(29,348)	1,056,626	(5,355)		7,490
Comprehensive (loss) income, net of tax:
Net (loss) income	(1,141,501)			(1,142,747)			1,246
Other postretirement benefits liability adjustment, net of tax	744				744
Share-based compensation plans (in shares)		627
Share-based compensation plans	33,284	$ 21,982	11,302
Convertible Notes settlements (Note 10)	0
Repurchase and retirement of common stock (in shares)		(1,362)
Repurchase and retirement of common stock	(29,385)	$ (21,106)		(8,279)
Alta Acquisition (Note 6) (in shares)		98,789
Alta Acquisition (Note 6)	1,925,405	$ 1,925,405
Contribution from noncontrolling interest	7,500						7,500
Ending Balance (in shares) at Dec. 31, 2021		376,399
Ending Balance at Dec. 31, 2021	9,970,999	$ 10,071,820	(18,046)	(94,400)	(4,611)		16,236
Comprehensive (loss) income, net of tax:
Net (loss) income	1,780,942			1,770,965			9,977
Other postretirement benefits liability adjustment, net of tax	1,617				1,617
Dividends	(203,629)			(203,629)
Share-based compensation plans (in shares)		2,100
Share-based compensation plans	41,717	$ 23,671	18,046
Convertible Notes settlements (Note 10) (in shares)		4
Convertible Notes settlements (Note 10)	63	$ 63
Repurchase and retirement of common stock (in shares)		(13,140)
Repurchase and retirement of common stock	(393,022)	$ (203,664)		(189,358)
Distribution to noncontrolling interest	(11,592)						(11,592)
Contribution from noncontrolling interest	15,000						15,000
Other	11,233						11,233
Ending Balance (in shares) at Dec. 31, 2022		365,363
Ending Balance at Dec. 31, 2022	$ 11,213,328	$ 9,891,890	$ 0	$ 1,283,578	$ (2,994)		$ 40,854

[1] Amounts included in accumulated other comprehensive loss are related to other postretirement benefits liability adjustments, net of tax, which are attributable to net actuarial losses and net prior service costs.