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, 2020		718,795,700
Beginning balance at Dec. 31, 2020	$ 497	$ 7	$ 5,093	$ (4,363)	$ (38)	$ (202)
Beginning balance treasury stock (in share) at Dec. 31, 2020						44,353,224
Comprehensive loss
Net income (loss)	(25)			(25)
Other comprehensive income	13				13
Comprehensive income (loss)	(12)
Stock-based compensation	$ 2		2
Exercise of stock options (in shares)	0
Issuance of restricted stock (in shares)		289,442
Cancellation of restricted stock (in shares)		(405)
Restricted units granted (in shares)		2,184,681
Restricted units granted	$ 8		8
Performance units vested (in shares)		1,001,505
Performance units vested	4		4
Merger consideration (in shares)		437,164,919
Treasury Stock	2,051	$ 5	2,046
Tax withholding - stock compensation (in shares)		(763,176)
Tax withholding – stock compensation	(3)		(3)
Ending balance (in shares) at Dec. 31, 2021		1,158,672,666
Ending balance at Dec. 31, 2021	2,547	$ 12	7,150	(4,388)	(25)	$ (202)
Ending balance treasury stock (in share) at Dec. 31, 2021						44,353,224
Comprehensive loss
Net income (loss)	1,849			1,849
Other comprehensive income	31				31
Comprehensive income (loss)	1,880
Stock-based compensation	$ 7		7
Exercise of stock options (in shares)	893,000	893,312
Exercise of stock options	$ 7		7
Issuance of common stock (in shares)		79
Issuance of common stock	0		0
Issuance of restricted stock (in shares)		185,774
Restricted units granted (in shares)		21,981
Performance units vested (in shares)		2,499,860
Performance units vested	$ 12		12
Treasury stock (in shares)	17,261,469					17,261,469
Treasury stock	$ (125)					$ (125)
Tax withholding - stock compensation (in shares)		(728,084)
Tax withholding – stock compensation	(4)		(4)
Ending balance (in shares) at Dec. 31, 2022		1,161,545,588
Ending balance at Dec. 31, 2022	$ 4,324	$ 12	7,172	(2,539)	6	$ (327)
Ending balance treasury stock (in share) at Dec. 31, 2022	61,614,693					61,614,693
Comprehensive loss
Net income (loss)	$ 1,557			1,557
Other comprehensive income	(9)				(9)
Comprehensive income (loss)	1,548
Stock-based compensation	$ 12		12
Exercise of stock options (in shares)	0
Issuance of restricted stock (in shares)		188,382
Restricted units granted (in shares)		2,009,007
Restricted units granted	$ 8		8
Treasury stock (in shares)	0
Tax withholding - stock compensation (in shares)		(665,232)
Tax withholding – stock compensation	$ (4)		(4)
Ending balance (in shares) at Dec. 31, 2023		1,163,077,745
Ending balance at Dec. 31, 2023	$ 5,888	$ 12	$ 7,188	$ (982)	$ (3)	$ (327)
Ending balance treasury stock (in share) at Dec. 31, 2023	61,614,693					61,614,693