FINANCIAL INSTRUMENTS AND FAIR VALUE MEASURES 2 (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Significant Observable Inputs (Level 2) | Foreign Currency Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Fair Value Of Derivative Asset	$ 119,000,000	$ 17,000,000
Derivative Fair Value Of Derivative Liability	4,000,000	70,000,000
Significant Observable Inputs (Level 2) | Interest Rate Swap Agreements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Fair Value Of Derivative Asset	20,000,000	44,000,000
Derivative Fair Value Of Derivative Liability	65,000,000	52,000,000
Significant Observable Inputs (Level 2) | Currency Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Fair Value Of Derivative Asset	32,000,000	0
Fair Value Inputs Level 1 And Level 2 [Member] | Available for sale investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale investments	$ 1,784,000,000	$ 3,916,000,000