Earnings per Share - Components of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income attributable to common stockholders	$ 37	$ 20	$ 17	$ 40	$ 57	$ 57
Weighted average outstanding shares of common stock (in shares)	96.5		101.0		97.0	101.2
Dilutive effect of employee stock options, restricted stock and other stock awards (in shares)	0.9		1.9		1.9	2.1
Common stock and common stock equivalents (in shares)	97.4		102.9		98.9	103.3
Net income per share:
Basic (in dollars per share)	$ 0.38		$ 0.17		$ 0.59	$ 0.56
Diluted (in dollars per share)	$ 0.38		$ 0.17		$ 0.58	$ 0.55