OTHER COMPREHENSIVE INCOME Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ (4,739)
Amounts reclassified from accumulated other comprehensive income	$ 49	$ 45	154	$ (398)
Ending Balance	(5,132)	(5,014)	(5,132)	(5,014)
Defined Benefit Pension and Postretirement Items (a)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,192)	(2,362)	(2,277)	(1,916)
Reclassification of stranded tax effects - Defined benefit pension and postretirement adjustments	0	0	0	(527)
Amounts reclassified from accumulated other comprehensive income	43	41	128	122
Ending Balance	(2,149)	(2,321)	(2,149)	(2,321)
Change in Cumulative Foreign Currency Translation Adjustments (a)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,950)	(2,508)	(2,465)	(2,581)
Other comprehensive income (loss) before reclassifications	(28)	(179)	(515)	(110)
Amounts reclassified from accumulated other comprehensive income	0	0	0	4
Other comprehensive income (loss) attributable to noncontrolling interest	0	0	2	0
Ending Balance	(2,978)	(2,687)	(2,978)	(2,687)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(7)	0	3	(3)
Reclassification of stranded tax effects - Defined benefit pension and postretirement adjustments	0	0	0	(2)
Other comprehensive income (loss) before reclassifications	(4)	(10)	(34)	(6)
Amounts reclassified from accumulated other comprehensive income	6	4	26	5
Ending Balance	$ (5)	$ (6)	$ (5)	$ (6)