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Earnings Per Share ("EPS") - Computation of Basic and Diluted Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net income (loss) attributable to the Company	$ 14	$ (17)	$ 16	$ (40)
Net income (loss) attributable to the Company's stockholders	$ 14	$ (17)	$ 16	$ (40)
Denominator:
Weighted-average common shares outstanding, basic	108,278,356	107,689,554	108,177,100	107,635,122
Effect of dilutive securities	198,632		148,337
Weighted average diluted common shares outstanding	108,476,988	107,689,554	108,325,437	107,635,122
Basic	$ 0.12	$ (0.16)	$ 0.15	$ (0.37)
Diluted	$ 0.12	$ (0.16)	$ 0.15	$ (0.37)

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Net income loss attributable to shareholders.

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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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