Other (Income) Expense, Net (Detail) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Other (Income) Expense, net
Foreign exchange	$ (15)
Pension	(12)	$ 9
All other	9	2
Other (income) expense, net	$ (18)	$ 11

Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Amount of gain (loss) related to nonoperating activities, classified as other.

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Amount of income (expense) related to nonoperating activities, classified as other.

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Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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