CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Millions	Total	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	ACCUMULATED OTHER COMPREHENSIVE LOSS	ACCUMULATED DEFICIT
Balance at beginning of period at Dec. 31, 2023		$ 1,008	$ 18,126	$ (810)	$ (17,907)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock through incentive and benefit plans		8
Shares withheld to satisfy tax withholdings		0	(1)
Stock-based compensation		0	14
Other		0	(2)
Other comprehensive income	$ 11			11
Net (loss) income	57				57
Balance at end of period at Mar. 31, 2024	504	1,016	18,137	(799)	(17,850)
Balance at beginning of period at Dec. 31, 2024	464	19,149	0	(723)	(17,962)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock through incentive and benefit plans		0
Shares withheld to satisfy tax withholdings		(10)	0
Stock-based compensation		10	0
Other		3	0
Other comprehensive income	23			23
Net (loss) income	(201)				(201)
Balance at end of period at Mar. 31, 2025	$ 289	$ 19,152	$ 0	$ (700)	$ (18,163)