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
Numerator:
Net (loss) income attributable to stockholders		$ (459)	$ (1,440)	$ 306
Earnings attributable to participating securities		0	0	(1)
Net (loss) income attributable to stockholders, net of earnings allocated to participating securities		$ 459	$ (1,440)	$ 305
Denominator:
Weighted average shares outstanding – basic		236	236	212
Unvested restricted shares		0	0	1
Weighted average shares outstanding – diluted		236	236	213
(Loss) Earnings per share - Basic(1)	[1]	$ (1.95)	$ (6.11)	$ 1.44
(Loss) Earnings per share - Diluted(1)	[1]	$ (1.95)	$ (6.11)	$ 1.44

[1] Per share amounts are calculated based on unrounded numbers and are calculated independently for each period presented.