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Segment Information (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Jan. 02, 2015
Dec. 27, 2013
Jan. 02, 2015
segment
Dec. 27, 2013
Segment Reporting Information [Line Items]        
Number of reportable segments     3us-gaap_NumberOfReportableSegments  
Net revenue $ 1,638us-gaap_SalesRevenueNet $ 1,705us-gaap_SalesRevenueNet $ 4,990us-gaap_SalesRevenueNet $ 5,051us-gaap_SalesRevenueNet
Intersegment Eliminations        
Segment Reporting Information [Line Items]        
Net revenue $ 0us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember		 $ 0us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember		 $ 0us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember		 $ 0us-gaap_SalesRevenueNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember