OTHER COMPREHENSIVE INCOME Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ (4,500)
Amounts reclassified from accumulated other comprehensive income	$ 45	$ 78	(398)	$ 231
Other comprehensive income (loss) attributable to noncontrolling interest	0	(2)	0	(4)
Ending Balance	(5,014)	(4,887)	(5,014)	(4,887)
Defined Benefit Pension and Postretirement Items (a)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,362)	(2,376)	(1,916)	(2,527)
Reclassification of stranded tax effects - Defined benefit pension and postretirement adjustments	0	0	(527)	0
Amounts reclassified from accumulated other comprehensive income	41	76	122	227
Ending Balance	(2,321)	(2,300)	(2,321)	(2,300)
Change in Cumulative Foreign Currency Translation Adjustments (a)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,508)	(2,489)	(2,581)	(2,111)
Other comprehensive income (loss) before reclassifications	(179)	(87)	(110)	(469)
Amounts reclassified from accumulated other comprehensive income	0	0	4	2
Other comprehensive income (loss) attributable to noncontrolling interest	0	2	0	4
Ending Balance	(2,687)	(2,574)	(2,687)	(2,574)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	0	(16)	(3)	5
Reclassification of stranded tax effects - Defined benefit pension and postretirement adjustments	0	0	(2)	0
Other comprehensive income (loss) before reclassifications	(10)	1	(6)	(20)
Amounts reclassified from accumulated other comprehensive income	4	2	5	2
Ending Balance	$ (6)	$ (13)	$ (6)	$ (13)