Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 198	$ 212
Other comprehensive (loss) income:
Foreign currency translation adjustments	(29)	32
Total other comprehensive (loss) income	(29)	32
Comprehensive income	$ 169	$ 244