Technology Solutions Charges (Details) (Technology Solutions [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Other nonrecurring expense	$ 57	$ 60
Cost of sales [Member]
Segment Reporting Information [Line Items]
Other nonrecurring expense	34	34
Operating expense [Member]
Segment Reporting Information [Line Items]
Other nonrecurring expense	23	26
Product alignment charges
Segment Reporting Information [Line Items]
Other nonrecurring expense	35
Integration-related expenses [Member]
Segment Reporting Information [Line Items]
Other nonrecurring expense	15
Reduction in workforce severance charges [Member]
Segment Reporting Information [Line Items]
Other nonrecurring expense	7
Severance charges due to reorganization [Member]
Segment Reporting Information [Line Items]
Other nonrecurring expense	35
Asset impairment charges [Member]
Segment Reporting Information [Line Items]
Other nonrecurring expense	$ 15