CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Condensed Statement of Income Captions [Line Items]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ 62	$ (97)	$ (51)	$ 51	$ (35)	$ 0
Net Income (Loss) Attributable to Noncontrolling Interest	$ 5		$ 2		$ 9	$ 2

Amount after tax of other comprehensive income (loss) attributable to parent entity.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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