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Earnings (Loss) Per Share - Computation of Basic and Diluted Earnings (Loss) Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net income (loss) attributable to the Company	$ 5	$ (2)	$ (10)	$ (22)	$ (30)	$ (331)	$ (7)	$ (383)
Net income (loss) attributable to the Company's stockholders	$ 5			$ (22)			$ (7)	$ (383)
Denominator:
Weighted average basic common shares outstanding	110,558,831			109,379,627			110,351,625	109,323,228
Effect of dilutive securities	71,857
Weighted average diluted common shares outstanding	110,630,688			109,379,627			110,351,625	109,323,228
Basic	$ 0.05			$ (0.20)			$ (0.06)	$ (3.50)
Diluted	$ 0.05			$ (0.20)			$ (0.06)	$ (3.50)

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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