Income Taxes - Components of Net Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Postretirement benefits	$ 265	$ 266
Intangible assets	(3,203)	(1,418)
Investments in non-US subsidiaries	(149)	(152)
Fixed assets, net	(163)	(176)
Inventories	289	159
Other, net	721	454
Net deferred tax assets (liabilities)	$ (2,240)	$ (867)

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences from investments in unconsolidated subsidiaries and investments in other affiliates which are not controlled nor consolidated.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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