Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

No definition available.

Name:	us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Fair Value Measurements - Fair Values of Derivative Instruments in Consolidated Balance Sheets (Detail) - Interest Rate Swap Arrangements - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Prepaid Expenses and Other Current Assets
Derivatives Fair Value [Line Items]
Assets		$ 3
Other Non-Current Assets
Derivatives Fair Value [Line Items]
Assets		20
Other Non-Current Liabilities
Derivatives Fair Value [Line Items]
Liabilities	$ 30	$ 3