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STOCKHOLDERS' EQUITY Part 2 AOCI (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Translation Adjustment	$ (259)			$ (259)		$ (264)	$ (309)
Change in cumulative translation adjustment	(14)		$ (13)	5	$ 17	45
Benefit Plans Unrecognized Prior Service Credits	92			92		106	106
Change in Benefit Plans Unrecognized Prior Service Credits				(14)		0
Unrealized Gains (Losses) on Derivative Instruments	(41)			(41)		(55)	(41)
Change in Unrealized Gains (Losses) on Derivative Instruments				14		(14)
Unrealized Losses on Investments	(1)			(1)		(1)	(1)
Change in Unrealized Losses on Investments				0		0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax						31
Accumulated Other Comprehensive Income (Loss), Net of Tax	(209)			(209)		$ (214)	$ (245)
Total other comprehensive income (loss), net of tax	$ (12)		$ (41)	$ 5	$ (10)
Accounting Standards Update 2018-02 [Member] \| Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect on Retained Earnings, Tax		$ (29)
Accounting Standards Update 2018-02 [Member] \| Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect on Retained Earnings, Tax		$ 9