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Commitments and Contengencies (Contingencies) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended 2 Months Ended 0 Months Ended
Mar. 29, 2013
Mar. 30, 2012
Apr. 01, 2011
Jul. 21, 2011
Pending Litigation [Member]
lawsuit
May 15, 2013
United States District Court, Eastern District of Virginia [Member]
Subsequent Event [Member]
Pending Litigation [Member]
Loss Contingencies [Line Items]          
Number of pending class action complaints       4  
Litigation settlement amount         $ 97.5
Related receivable, pending corporate insurance claim 45        
Legal Fees 33 67 2    
Legal Fees, Gross $ 78