Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 167	$ 271
Other comprehensive (loss) income, net of tax (Note 11)
Unrealized loss on hedges, net of income tax benefit of $39, $5	(117)	(15)
Foreign currency translation adjustment	(426)	57
Other comprehensive (loss) income, net of tax	(543)	42
Comprehensive (loss) income	$ (376)	$ 313

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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