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Segment Information 3 (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jun. 30, 2013
Fiscal Year 2014 Re-Balancing Plan [Member]
Jun. 30, 2012
Enterprise Solutions [Member]
Segment Reporting [Line Items]    
Intellectual property assets transaction value   $ 35
Re-balancing charges $ 120