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Income Taxes - Reconciliation of U.S. Statutory Rate to Effective Income Tax Rate on Continuing Basis (Detail)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Effective Tax Rate Reconciliation [Line Items]
Statutory rate	35.00%	35.00%	35.00%
State income taxes, net of federal income tax effect	2.00%	4.20%	3.00%
Foreign tax credit	1.80%	1.30%	(17.50%)
Foreign rate differential	(13.00%)	(9.80%)	(10.50%)
Resolution of tax contingencies, net of increases	(1.90%)	(2.10%)	1.20%
Valuation allowance reserve (decrease) increase	(3.00%)	(3.30%)	0.20%
Manufacturing deduction	(0.90%)	(2.20%)	(2.00%)
Foreign statutory tax rate change	(1.10%)	(4.90%)
Sale of businesses	(5.20%)
Reversal of outside basis difference	(4.80%)
U.S. Tax Reform, impact of change in tax rate and other	(112.20%)
U.S. Tax Reform, federal income tax on mandatory deemed repatriation	12.40%
Other	(1.50%)	(3.30%)	(1.90%)
Effective rate	(92.40%)	35.10%	23.20%
Tools [Member]
Effective Tax Rate Reconciliation [Line Items]
Other		20.20%
Venezuelan Operations [Member]
Effective Tax Rate Reconciliation [Line Items]
Other			15.70%

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Effective income tax rate reconciliation change in foreign statutory tax rates.

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Effective income tax rate reconciliation change in tax rate and other impact of tax reform

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Effective income tax rate reconciliation, federal income tax on mandatory deemed repatriation.

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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 foreign tax credit adjustments.

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Effective Tax Rate Reconciliation [Line Items]

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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 changes in the valuation allowance for deferred tax assets.

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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 deductions. Including, but not limited to, extraterritorial income exclusion deduction, qualified production activity deduction, dividend deduction, deduction for dividend paid to employee stock ownership plan, Medicare prescription drug benefit subsidy deduction, and other deductions.

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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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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 income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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