XML 88 R34.htm IDEA: XBRL DOCUMENT v2.4.0.8
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
0 Months Ended 12 Months Ended
Jun. 06, 2014
Sep. 27, 2014
Item
Sep. 28, 2013
Sep. 29, 2012
Significant Accounting Policies [Line Items]        
Stock split ratio 7      
Deliverable in arrangements   3    
Advertising expense   $ 1,200,000,000 $ 1,100,000,000 $ 1,000,000,000
Measurement of tax position, minimum likelihood of tax benefits being realized upon ultimate settlement, percentage   50.00%    
Depreciation and amortization expense   6,900,000,000 5,800,000,000 2,600,000,000
Goodwill impairment charges   0 0 0
Indefinite lived intangible asset impairment charges   0 0 0
Minimum
       
Significant Accounting Policies [Line Items]        
Estimated selling price for software upgrade right and non-software services for qualifying hardware devices (USD/unit sold)   5 5 5
Estimated life of hardware device   2 years 2 years 2 years
Amortized acquired intangible assets with definite useful lives period (in years)   3 years    
Maximum
       
Significant Accounting Policies [Line Items]        
Estimated selling price for software upgrade right and non-software services for qualifying hardware devices (USD/unit sold)   40 40 40
Estimated life of hardware device   4 years 4 years 4 years
Amortized acquired intangible assets with definite useful lives period (in years)   7 years    
Building | Maximum
       
Significant Accounting Policies [Line Items]        
Estimated useful lives of assets (Years)   30 years    
Machinery and Equipment | Minimum
       
Significant Accounting Policies [Line Items]        
Estimated useful lives of assets (Years)   2 years    
Machinery and Equipment | Maximum
       
Significant Accounting Policies [Line Items]        
Estimated useful lives of assets (Years)   5 years    
Leasehold Improvements | Maximum
       
Significant Accounting Policies [Line Items]        
Estimated useful lives of assets (Years)   10 years    
Internal-Use Software | Minimum
       
Significant Accounting Policies [Line Items]        
Estimated useful lives of assets (Years)   3 years    
Internal-Use Software | Maximum
       
Significant Accounting Policies [Line Items]        
Estimated useful lives of assets (Years)   5 years    
Mac
       
Significant Accounting Policies [Line Items]        
Estimated selling price for software upgrade right and non-software services for qualifying hardware devices (USD/unit sold)   40    
iPhone and iPad | Minimum
       
Significant Accounting Policies [Line Items]        
Estimated selling price for software upgrade right and non-software services for qualifying hardware devices (USD/unit sold)   15    
iPhone and iPad | Maximum
       
Significant Accounting Policies [Line Items]        
Estimated selling price for software upgrade right and non-software services for qualifying hardware devices (USD/unit sold)   $ 25