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Derivative Instruments and Hedging Activities - Schedule of Foreign Exchange Contracts (Detail) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
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Derivative |  |
Net contract notional amount of foreign exchange forward contracts | $ 16 | $ 25
Foreign Exchange Contract |  |
Derivative |  |
Contract notional amount of foreign exchange forward contracts | $ 156 | $ 138

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Notional Amount Of Foreign Currency Fair Value Hedge Derivatives Net Basis + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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