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Debt (Narrative) (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 02, 2015
Mar. 29, 2013
Apr. 01, 2011
Senior Notes | 2.75% due September 15, 2015      
Debt Instrument [Line Items]      
Stated interest rate (as a percent) 2.75%    
Settlement of debt by cash payment $ 350,000,000    
Revolving Credit Facility | Line of Credit      
Debt Instrument [Line Items]      
Maximum borrowing capacity under revolving loans     $ 1,000,000,000.0
Revolving credit facility expiration date   Jun. 07, 2017  
Amount outstanding $ 0