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Equity (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 12 Months Ended
Dec. 25, 2015
Sep. 25, 2015
Nov. 19, 2015
Jan. 23, 2015
Equity, Class of Treasury Stock [Line Items]        
Stock Repurchase Program, Authorized Amount       $ 300.0
2015 Share Repurchase Program [Member]        
Equity, Class of Treasury Stock [Line Items]        
Stock Repurchase Program, Authorized Amount     $ 800.0  
Stock Repurchase Program, Increase in Authorized Amount     $ 500.0  
Stock Repurchased During Period, Shares 3,903,376 823,592    
Stock Repurchased During Period, Value $ 274.7 $ 75.0    
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 450.3