|
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
Share data in Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|---|
|
Dec. 28, 2013
|
Dec. 29, 2012
|
Dec. 28, 2013
Minimum
|
Sep. 28, 2013
Minimum
|
Dec. 28, 2013
Maximum
|
Sep. 28, 2013
Maximum
|
|
| Significant Accounting Policies [Line Items] | ||||||
| Estimated selling price for software upgrade right and non-software services for qualifying hardware devices (USD/unit sold) | $ 5 | $ 25 | ||||
| Adjusted Mac estimated selling price for software upgrade rights and non-software services | $ 20 | $ 40 | ||||
| Potentially dilutive securities excluded from computation of diluted earnings per common share because their effect would have been antidilutive | 0.4 | 3.7 | ||||