CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 1,273	$ 1,907	$ 1,459
Other comprehensive (loss) income:
Foreign currency translation adjustments	35	(391)	478
Derivative instrument adjustments and other, net of tax	2	4	(9)
Reclassification of (gains) losses, net of tax	(7)	17	11
Total other comprehensive (loss) income, net of tax	30	(370)	480
Comprehensive income	$ 1,303	$ 1,537	$ 1,939

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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