Description of Business, Basis of Presentation and Significant Accounting Policies - Components of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Description of Business, Basis of Presentation and Significant Accounting Policies [Abstract]
Net income (loss) attributable to common stockholders	$ 147	$ 129	$ (20)
Weighted average outstanding shares of common stock (in shares)	108.6	109.3	114.2
Dilutive effect of employee stock options, restricted shares and other stock awards (in shares)	4.3	2.3	0.0
Common stock and common stock equivalents (in shares)	112.9	111.6	114.2
Earnings (loss) per share:
Basic (in usd per share)	$ 1.35	$ 1.18	$ (0.18)
Diluted (in usd per share)	$ 1.30	$ 1.16	$ (0.18)