OTHER COMPREHENSIVE INCOME Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ (4,739)
Amounts reclassified from accumulated other comprehensive income	$ 48	$ 40	105	$ (443)
Other comprehensive income (loss) attributable to noncontrolling interest	(1)	0	(2)	0
Ending Balance	(5,149)	(4,870)	(5,149)	(4,870)
Defined Benefit Pension and Postretirement Items (a)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,231)	(2,402)	(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	39	40	85	81
Ending Balance	(2,192)	(2,362)	(2,192)	(2,362)
Change in Cumulative Foreign Currency Translation Adjustments (a)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(3,008)	(2,569)	(2,465)	(2,581)
Other comprehensive income (loss) before reclassifications	57	61	(487)	69
Amounts reclassified from accumulated other comprehensive income	0	0	0	4
Other comprehensive income (loss) attributable to noncontrolling interest	1	0	2	0
Ending Balance	(2,950)	(2,508)	(2,950)	(2,508)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(16)	(4)	3	(3)
Reclassification of stranded tax effects - Defined benefit pension and postretirement adjustments	0	0	0	(2)
Other comprehensive income (loss) before reclassifications	0	4	(30)	4
Amounts reclassified from accumulated other comprehensive income	9	0	20	1
Ending Balance	$ (7)	$ 0	$ (7)	$ 0