Segment Information 2 (Details) - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Revenue from the United States and international locations
Total revenue		$ 977	$ 1,069
United States
Revenue from the United States and international locations
Total revenue		619	643
EMEA
Revenue from the United States and international locations
Total revenue	[1]	221	259
Other
Revenue from the United States and international locations
Total revenue		$ 137	$ 167

[1] Consists of Europe, the Middle East and Africa.