v2.4.0.8
Shareholders' Equity - Additional Information (Detail) (USD $)
In Billions, except Share data in Millions, unless otherwise specified
 1 Months Ended 3 Months Ended 12 Months Ended 1 Months Ended 3 Months Ended 12 Months Ended 9 Months Ended
Apr. 30, 2013
Dec. 28, 2013
Sep. 28, 2013
Sep. 29, 2012
Apr. 30, 2013
ASR 1
Dec. 29, 2012
ASR 1
Sep. 28, 2013
ASR 1
Jun. 29, 2013
ASR 2
Stockholders Equity Note Disclosure [Line Items]                
Preferred stock, shares authorized   5            
Maximum amount authorized for repurchase of common stock       $ 10        
New amount authorized for repurchase of common stock 60              
Accelerated share repurchase program, utilized amount   28.0            
Shares repurchased and retired   9.5     1.5 2.6 4.1 23.5
Accelerated share repurchase program, up-front payment           1.95   12.00
Shares repurchase program completion date     April 2013          
Shares repurchase price per share             $ 478.20  
Shares retired, average price   $ 523.51            
Shares retired Amount   $ 5.0