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Employee Stock Purchase And Stock Option Plans (Information Regarding Options Outstanding, And Options Exercisable) (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Oct. 02, 2015
Sep. 26, 2014
Sep. 27, 2013
Sep. 28, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Range of exercise prices, minimum (in dollars per share) $ 32.51 $ 25.87 $ 20.98  
Range of exercise prices, maximum (in dollars per share) $ 80.63 $ 94.11 $ 94.11  
Options outstanding number (in shares) 4,072,707 4,221,147 4,606,212 5,756,734
Options outstanding weighted average remaining contractual life (in years) 6 years 6 months 22 days      
Options outstanding weighted average price (in dollars per share) $ 46.06 $ 53.23 $ 52.33 $ 47.23
Options exercisable (in shares) 2,590,560      
Options exercisable weighted average exercise price (in dollars per share) $ 44.84      
Ownership duration of common stock for incentive plan participants for exercise price of stock options, minimum (in months) 6 months      
Nonvested not yet recognized $ 109.8      
Options exercisable, weighted average remaining contractual term (in years) 5 years 4 months 24 days      
$32.51 - $37.32        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Range of exercise prices, minimum (in dollars per share) $ 32.51      
Range of exercise prices, maximum (in dollars per share) $ 37.32      
Options outstanding number (in shares) 519,375      
Options outstanding weighted average remaining contractual life (in years) 6 years 4 months 20 days      
Options outstanding weighted average price (in dollars per share) $ 37.01      
Options exercisable (in shares) 394,625      
Options exercisable weighted average exercise price (in dollars per share) $ 37.00      
$37.43 - $46.37        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Range of exercise prices, minimum (in dollars per share) 37.43      
Range of exercise prices, maximum (in dollars per share) $ 46.37      
Options outstanding number (in shares) 2,057,796      
Options outstanding weighted average remaining contractual life (in years) 5 years 10 months 10 days      
Options outstanding weighted average price (in dollars per share) $ 42.74      
Options exercisable (in shares) 1,429,761      
Options exercisable weighted average exercise price (in dollars per share) $ 42.40      
$47.11 - $55.53        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Range of exercise prices, minimum (in dollars per share) 47.11      
Range of exercise prices, maximum (in dollars per share) $ 55.53      
Options outstanding number (in shares) 1,401,461      
Options outstanding weighted average remaining contractual life (in years) 7 years 4 months 17 days      
Options outstanding weighted average price (in dollars per share) $ 53.00      
Options exercisable (in shares) 709,699      
Options exercisable weighted average exercise price (in dollars per share) $ 52.22      
$60.08 - $80.63        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Range of exercise prices, minimum (in dollars per share) 60.08      
Range of exercise prices, maximum (in dollars per share) $ 80.63      
Options outstanding number (in shares) 94,075      
Options outstanding weighted average remaining contractual life (in years) 5 years 11 months 23 days      
Options outstanding weighted average price (in dollars per share) $ 65.33      
Options exercisable (in shares) 56,475      
Options exercisable weighted average exercise price (in dollars per share) $ 68.64