Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (331)	$ 18
Other comprehensive income (loss):
Foreign currency translation adjustments	(39)	10
Comprehensive income (loss)	$ (370)	$ 28

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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