Segment Information 2 (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Revenue from the United States and international locations
Revenue		$ 1,034	$ 1,091	$ 3,016	$ 3,239
United States
Revenue from the United States and international locations
Revenue		671	668	1,935	1,967
EMEA
Revenue from the United States and international locations
Revenue	[1]	230	263	679	781
Other
Revenue from the United States and international locations
Revenue		$ 133	$ 160	$ 402	$ 491

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