ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Balance beginning of period December 31,	$ (2,235,000,000)	$ (2,714,000,000)
Other comprehensive income (loss) before reclassifications	59,000,000	189,000,000
Amounts reclassified from accumulated other comprehensive income	2,000,000	(37,000,000)
Net current period other comprehensive income (loss)	61,000,000	152,000,000
Balance end of period	(2,174,000,000)	(2,562,000,000)
Foreign Exchange Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance beginning of period December 31,	(1,981,000,000)	(1,944,000,000)
Other comprehensive income (loss) before reclassifications	91,000,000	248,000,000
Amounts reclassified from accumulated other comprehensive income	0	0
Net current period other comprehensive income (loss)	91,000,000	248,000,000
Balance end of period	(1,890,000,000)	(1,696,000,000)
Pension and Other Postretirement Benefits Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance beginning of period December 31,	(202,000,000)	(879,000,000)
Other comprehensive income (loss) before reclassifications	0	(46,000,000)
Amounts reclassified from accumulated other comprehensive income	(16,000,000)	(14,000,000)
Net current period other comprehensive income (loss)	(16,000,000)	(60,000,000)
Balance end of period	(218,000,000)	(939,000,000)
Changes in Fair Value of Effective Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance beginning of period December 31,	(52,000,000)	109,000,000
Other comprehensive income (loss) before reclassifications	(32,000,000)	(13,000,000)
Amounts reclassified from accumulated other comprehensive income	18,000,000	(23,000,000)
Net current period other comprehensive income (loss)	(14,000,000)	(36,000,000)
Balance end of period	$ (66,000,000)	$ 73,000,000