Annual report pursuant to Section 13 and 15(d)

Earnings Per Share - Additional Information (Detail)

v2.4.0.8
Earnings Per Share - Additional Information (Detail) (Stock Options [Member], USD $)
In Millions, except Per Share data, unless otherwise specified
12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 29, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Common stock outstanding, not included in computation of diluted earnings per share 9.7 10.4 6.1
Minimum [Member]
     
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Outstanding options to purchase common stock $ 6.43 $ 4.60 $ 4.60
Maximum [Member]
     
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Outstanding options to purchase common stock $ 16.23 $ 16.23 $ 16.23