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Shareholder's Equity (Summary Of Activity Of Common Stock Repurchase Program) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended
Dec. 29, 2019
Dec. 30, 2018
Equity, Class of Treasury Stock [Line Items]    
Number of Shares Repuchased 3.2 0.3
Average Price Per Share $ 61.92 $ 56.02
Amount $ 196.9 $ 18.5
Open Market Purchases [Member]    
Equity, Class of Treasury Stock [Line Items]    
Number of Shares Repuchased 1.3  
Average Price Per Share $ 62.06  
Amount $ 81.4  
Private Purchases [Member]    
Equity, Class of Treasury Stock [Line Items]    
Number of Shares Repuchased 0.2 0.3
Average Price Per Share $ 62.30 $ 56.02
Amount $ 9.2 $ 18.5
ASR [Member]    
Equity, Class of Treasury Stock [Line Items]    
Number of Shares Repuchased 1.7  
Average Price Per Share $ 61.79  
Amount $ 106.3