CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Common Stock in Treasury
Beginning balance (in shares) at Dec. 31, 2021		1,158,672,666
Beginning balance at Dec. 31, 2021	$ 2,547	$ 12	$ 7,150	$ (4,388)	$ (25)	$ (202)
Beginning balance treasury stock (in share) at Dec. 31, 2021						44,353,224
Comprehensive income (loss):
Net income (loss)	(2,675)			(2,675)
Total comprehensive income	(2,675)
Stock-based compensation	1		1
Performance units vested (in shares)		2,499,860
Performance units vested	12		12
Tax withholding - stock compensation (in shares)		(721,070)
Tax withholding – stock compensation	(4)		(4)
Ending balance (in shares) at Mar. 31, 2022		1,160,451,456
Ending balance at Mar. 31, 2022	(119)	$ 12	7,159	(7,063)	(25)	$ (202)
Ending balance treasury stock (in share) at Mar. 31, 2022						44,353,224
Beginning balance (in shares) at Dec. 31, 2021		1,158,672,666
Beginning balance at Dec. 31, 2021	2,547	$ 12	7,150	(4,388)	(25)	$ (202)
Beginning balance treasury stock (in share) at Dec. 31, 2021						44,353,224
Comprehensive income (loss):
Net income (loss)	(1,052)
Total comprehensive income	$ (1,052)
Treasury stock acquired (in shares)	13,600,000
Treasury stock	$ (100)
Ending balance (in shares) at Sep. 30, 2022		1,161,475,422
Ending balance at Sep. 30, 2022	1,414	$ 12	7,169	(5,440)	(25)	$ (302)
Ending balance treasury stock (in share) at Sep. 30, 2022						57,966,919
Beginning balance (in shares) at Mar. 31, 2022		1,160,451,456
Beginning balance at Mar. 31, 2022	(119)	$ 12	7,159	(7,063)	(25)	$ (202)
Beginning balance treasury stock (in share) at Mar. 31, 2022						44,353,224
Comprehensive income (loss):
Net income (loss)	1,173			1,173
Total comprehensive income	1,173
Stock-based compensation	2		2
Exercised (in shares)		893,312
Exercise of stock options	7		7
Issuance of restricted stock (in shares)		115,608
Treasury stock acquired (in shares)						2,815,541
Treasury stock	$ (20)					$ (20)
Issuance of common stock (in shares)	79
Restricted stock units vested		21,981
Tax withholding - stock compensation (in shares)		(7,014)
Ending balance (in shares) at Jun. 30, 2022		1,161,475,422
Ending balance at Jun. 30, 2022	$ 1,043	$ 12	7,168	(5,890)	(25)	$ (222)
Ending balance treasury stock (in share) at Jun. 30, 2022						47,168,765
Comprehensive income (loss):
Net income (loss)	450			450
Total comprehensive income	450
Stock-based compensation	$ 1		1
Treasury stock acquired (in shares)	10,800,000					10,798,154
Treasury stock	$ (80)					$ (80)
Ending balance (in shares) at Sep. 30, 2022		1,161,475,422
Ending balance at Sep. 30, 2022	1,414	$ 12	7,169	(5,440)	(25)	$ (302)
Ending balance treasury stock (in share) at Sep. 30, 2022						57,966,919
Beginning balance (in shares) at Dec. 31, 2022		1,161,545,588
Beginning balance at Dec. 31, 2022	$ 4,324	$ 12	7,172	(2,539)	6	$ (327)
Beginning balance treasury stock (in share) at Dec. 31, 2022	61,614,693					61,614,693
Comprehensive income (loss):
Net income (loss)	$ 1,939			1,939
Other comprehensive loss	(15)				(15)
Total comprehensive income	1,924
Stock-based compensation	2		2
Restricted units vested (in shares)		1,999,039
Restricted units vested	8		8
Tax withholding - stock compensation (in shares)		(662,163)
Tax withholding – stock compensation	(4)		(4)
Ending balance (in shares) at Mar. 31, 2023		1,162,882,464
Ending balance at Mar. 31, 2023	6,254	$ 12	7,178	(600)	(9)	$ (327)
Ending balance treasury stock (in share) at Mar. 31, 2023						61,614,693
Beginning balance (in shares) at Dec. 31, 2022		1,161,545,588
Beginning balance at Dec. 31, 2022	$ 4,324	$ 12	7,172	(2,539)	6	$ (327)
Beginning balance treasury stock (in share) at Dec. 31, 2022	61,614,693					61,614,693
Comprehensive income (loss):
Net income (loss)	$ 2,215
Total comprehensive income	2,200
Ending balance (in shares) at Sep. 30, 2023		1,163,077,745
Ending balance at Sep. 30, 2023	$ 6,537	$ 12	7,185	(324)	(9)	$ (327)
Ending balance treasury stock (in share) at Sep. 30, 2023	61,614,693					61,614,693
Beginning balance (in shares) at Mar. 31, 2023		1,162,882,464
Beginning balance at Mar. 31, 2023	$ 6,254	$ 12	7,178	(600)	(9)	$ (327)
Beginning balance treasury stock (in share) at Mar. 31, 2023						61,614,693
Comprehensive income (loss):
Net income (loss)	231			231
Total comprehensive income	231
Stock-based compensation	4		4
Issuance of restricted stock (in shares)		188,382
Restricted units vested (in shares)		9,968
Tax withholding - stock compensation (in shares)		(3,069)
Ending balance (in shares) at Jun. 30, 2023		1,163,077,745
Ending balance at Jun. 30, 2023	6,489	$ 12	7,182	(369)	(9)	$ (327)
Ending balance treasury stock (in share) at Jun. 30, 2023						61,614,693
Comprehensive income (loss):
Net income (loss)	45			45
Total comprehensive income	45
Stock-based compensation	3		3
Ending balance (in shares) at Sep. 30, 2023		1,163,077,745
Ending balance at Sep. 30, 2023	$ 6,537	$ 12	$ 7,185	$ (324)	$ (9)	$ (327)
Ending balance treasury stock (in share) at Sep. 30, 2023	61,614,693					61,614,693