CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Total
Balance at Dec. 31, 2020	$ 1	$ 3,427	$ (6,734)	$ 4,832	$ (5)	$ 1,521
Balance (in shares) at Dec. 31, 2020	117,100,000
Increase (Decrease) in Stockholders' Equity
Net income				560		560
Other comprehensive income (loss)					(28)	(28)
Stock-based compensation		16				$ 16
Repurchases of common stock (in shares)						0
Dividends and dividend equivalent rights declared				(21)		$ (21)
Balance at Jun. 30, 2021	$ 1	3,443	(6,734)	5,371	(33)	2,048
Balance (in shares) at Jun. 30, 2021	117,100,000
Balance at Mar. 31, 2021	$ 1	3,431	(6,734)	5,108	(42)	1,764
Balance (in shares) at Mar. 31, 2021	117,100,000
Increase (Decrease) in Stockholders' Equity
Net income				274		274
Other comprehensive income (loss)					9	9
Stock-based compensation		9				9
Dividends and dividend equivalent rights declared				(11)		(11)
Other		3				3
Balance at Jun. 30, 2021	$ 1	3,443	$ (6,734)	5,371	(33)	2,048
Balance (in shares) at Jun. 30, 2021	117,100,000
Balance at Dec. 31, 2021	$ 1	2,174		(87)	(2)	2,086
Balance (in shares) at Dec. 31, 2021	49,900,000
Increase (Decrease) in Stockholders' Equity
Net income				223		223
Other comprehensive income (loss)					(12)	(12)
Stock-based compensation		15				15
Repurchases of common stock		(12)				$ (12)
Repurchases of common stock (in shares)	(200,000)					(200,000)
Dividends and dividend equivalent rights declared				(22)		$ (22)
Other		(3)				(3)
Other (in shares)	100,000
Balance at Jun. 30, 2022	$ 1	2,174		114	(14)	2,275
Balance (in shares) at Jun. 30, 2022	49,800,000
Balance at Mar. 31, 2022	$ 1	2,163		113	(9)	2,268
Balance (in shares) at Mar. 31, 2022	49,800,000
Increase (Decrease) in Stockholders' Equity
Net income				12		12
Other comprehensive income (loss)					(5)	(5)
Stock-based compensation		9				9
Dividends and dividend equivalent rights declared				(11)		(11)
Other		2				2
Balance at Jun. 30, 2022	$ 1	$ 2,174		$ 114	$ (14)	$ 2,275
Balance (in shares) at Jun. 30, 2022	49,800,000