Annual report pursuant to Section 13 and 15(d)

Composition of Certain Financial Statement Captions (Details)

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Composition of Certain Financial Statement Captions (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Sep. 30, 2012
Sep. 25, 2011
Sep. 26, 2010
Property, Plant and Equipment [Abstract]      
Depreciation and amortization expense $ 427 $ 704 $ 437
Interest capitalized in connection with the construction of the wireless network in India 29 0 0
Gross book values of property under capital leases included in buildings and improvements 64 175  
Capital lease additions 0 1 40
Buildings and improvements and leasehold improvements leased to third parties or held for lease to third parties, aggregate net book value 13 19  
Buildings and improvements and leasehold improvements leased to third parties or held for lease to third parties, accumulated depreciation and amortization 2 8  
Future minimum rental income - fiscal 2013 1    
Future minimum rental income - thereafter 0    
Goodwill and Other Intangible Assets [Abstract]      
Wireless spectrum intangible assets not subject to amortization 16    
In-process research and development intangible assets not subject to amortization 81    
Amortization expense related to intangible assets 473 357 227
Expected Amortization Expense for Intangible Assets [Abstract]      
Expected amortization expense during the next twelve months 487    
Expected amortization expense during the second fiscal year following the latest fiscal year 476    
Expected amortization expense during the third fiscal year following the latest fiscal year 434    
Expected amortization expense during the fourth fiscal year following the latest fiscal year 322    
Expected amortization expense during the fifth fiscal year following the latest fiscal year 209    
Expected amortization expense thereafter $ 993