Income Taxes - Reconciliation of U.S. Statutory Income Tax Rate to Our Effective Tax Rate (Detail)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
U.S. statutory income tax rate	35.00%	35.00%	35.00%
State taxes, net of federal deduction	0.70%	0.80%	1.00%
Tax impact of foreign operations, including foreign tax credits	(11.30%)	(12.20%)	(10.40%)
Tax impact of certain significant transactions	1.40%	1.60%	(3.50%)
Tax benefit relating to U.S. manufacturer's deduction and export sales	(1.90%)	(1.80%)	(1.90%)
R&D credit	(0.20%)	(0.60%)
Goodwill impairment			3.40%
Other	0.10%	(0.20%)	0.40%
Effective income tax rate	23.80%	22.60%	24.00%

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

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 deduction for qualified production activity.

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Percentage 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 applicable to statutory income tax expense (benefit) outside of the country of domicile.

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