Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amounts Being Hedged and the Fair Value of those Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Foreign currency exchange contracts
Derivative instruments and hedging activities
Notional Amount		$ 14
Foreign currency exchange contracts \| Accrued liabilities \| Recurring \| Fair Value, Inputs, Level 2
Derivative instruments and hedging activities
Derivative Asset, Current		0
Foreign currency forward contracts
Derivative instruments and hedging activities
Notional Amount	$ 74	43
Foreign currency forward contracts \| Receivables \| Recurring \| Fair Value, Inputs, Level 2
Derivative instruments and hedging activities
Derivative Asset, Current	0	0
Foreign currency forward contracts \| Accrued liabilities \| Recurring \| Fair Value, Inputs, Level 2
Derivative instruments and hedging activities
Derivative Liability, Current	0
Derivative Liability, Noncurrent		$ 0
Foreign currency forward contracts \| Other Current Liabilities \| Recurring \| Fair Value, Inputs, Level 2
Derivative instruments and hedging activities
Derivative Liability, Current	$ 0