Consolidated Statements of Shareholders' 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	$ 2,325	$ 3	$ 5,175	$ (47)	$ (2,806)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income	67				67
Share-based compensation activity	14		14
Balance at end of period at Jun. 30, 2024	2,406	3	5,189	(47)	(2,739)
Balance at beginning of period at Mar. 31, 2024	2,355	3	5,176	(47)	(2,777)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income	38				38
Share-based compensation activity	13		13
Balance at end of period at Jun. 30, 2024	2,406	3	5,189	(47)	(2,739)
Balance at beginning of period at Dec. 31, 2024	2,557	3	5,194	(47)	(2,593)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income	109			5	104
Share-based compensation activity	(4)		(4)
Cash dividend	(48)		(48)
Repurchases of common stock	(14)		(14)
Balance at end of period at Jun. 30, 2025	2,600	3	5,128	(42)	(2,489)
Balance at beginning of period at Mar. 31, 2025	2,571	3	5,158	(47)	(2,543)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income	59			5	54
Share-based compensation activity	5		5
Cash dividend	(24)		(24)
Repurchases of common stock	(11)		(11)
Balance at end of period at Jun. 30, 2025	$ 2,600	$ 3	$ 5,128	$ (42)	$ (2,489)