Derivative Financial Instruments - Schedule of Fair Value of Derivative Instruments (Detail) $ in Millions	Dec. 31, 2016 USD ($)
Derivatives Not Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Foreign exchange forward contracts, Assets	$ 1

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

No definition available.

Name:	us-gaap_ForeignCurrencyContractAssetFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant