Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
NET (LOSS) INCOME	$ (3,585)	$ 62
OTHER COMPREHENSIVE INCOME:
Foreign currency translation adjustment, net of ($1) and ($14) tax	3	72
Other comprehensive income, net of tax	3	72
COMPREHENSIVE (LOSS) INCOME	$ (3,582)	$ 134