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Income Tax - Differences in Income Taxes Computed at Netherlands Statutory Rate and Effective Income Tax Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Income tax benefit (expense) computed at statutory rate	$ (23)	$ (26)	$ 148
Non-deductible and non-taxable permanent differences, net	(18)	8	(2)
Income (loss) on equity-method investments		(11)	(31)
Valuation allowance adjustments	1	26	(83)
Current year credits	44	53	60
Other tax and credits	(13)	8	(42)
Benefits from tax holidays	42	65	18
Net impact of changes to uncertain tax positions	8	(92)	(33)
Earnings of subsidiaries taxed at different rates	(20)	(8)	(72)
Income tax benefit (expense)	$ 21	$ 23	$ (37)

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to equity in earnings (loss) of unconsolidated subsidiaries exempt from income taxes.

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