Annual report pursuant to Section 13 and 15(d)

Acquisitions (Details)

v2.4.0.8
Acquisitions (Details) (USD $)
 12 Months Ended
Sep. 29, 2013
projects
businesses
Sep. 30, 2012
businesses
projects
Sep. 25, 2011
businesses
Acquisitions [Abstract]      
Business Acquisition Purchase Price Allocation Goodwill Amt $ 82,000,000 $ 517,000,000 $ 2,048,000,000
Value of stock awards assumed in acquisition     106,000,000
Atheros Communications, Inc. [Member]
      
Acquisitions [Abstract]      
Amortizable intangible assets 856,000,000    
Business Acquisition Purchase Price Allocation In-process Research and Development 3,000,000   150,000,000
BusinessAcquisitionPurchasePriceAllocOtherNoncurrentAssets     691,000,000
Number of In-process research and development projects 1    
Acquired in-process research and development estimated completion period remaining 1    
Payments to Acquire Businesses, Net of Cash Acquired     3,100,000,000
Cash Acquired from Acquisition     233,000,000
Value of stock awards assumed in acquisition     106,000,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net     3,500,000,000
Atheros Communications, Inc. [Member] | Technology-based [Member]
      
Acquisitions [Abstract]      
Weighted-average useful life of intangible assets acquired     4 years 0 months 0 days
Atheros Communications, Inc. [Member] | Marketing-related [Member]
      
Acquisitions [Abstract]      
Weighted-average useful life of intangible assets acquired     6 years 0 months 0 days
Atheros Communications, Inc. [Member] | Customer-related [Member]
      
Acquisitions [Abstract]      
Weighted-average useful life of intangible assets acquired     3 years 0 months 0 days
Atheros Communications, Inc. [Member] | QCT [Member]
      
Acquisitions [Abstract]      
Business Acquisition Purchase Price Allocation Goodwill Amt     1,800,000,000
Acquirees other than Atheros [Member]
      
Acquisitions [Abstract]      
Number of businesses acquired 5 8 9
Cash consideration paid for businesses acquired 115,000,000 774,000,000 466,000,000
Business Acquisition Purchase Price Allocation Goodwill Amt 82,000,000 517,000,000 276,000,000
Business Acquisition Purchase Price Allocation In-process Research and Development 51,000,000 62,000,000  
Number of In-process research and development projects 6 10  
Acquired in-process research and development estimated completion period remaining 2    
Goodwill recognized from businesses acquired, expected to be deductible for tax purposes 21,000,000 71,000,000 234,000,000
Acquirees other than Atheros [Member] | Technology-based [Member]
      
Acquisitions [Abstract]      
Amortizable intangible assets 24,000,000 164,000,000 150,000,000
Weighted-average useful life of intangible assets acquired 6 years 0 months 0 days 6 years 0 months 0 days 5 years 0 months 0 days
Acquirees other than Atheros [Member] | In Process Research and Development [Member]
      
Acquisitions [Abstract]      
Acquired Finite-lived Intangible Assets, Useful Life, Minimum 3    
Acquired Finite-lived Intangible Assets, Useful Life, Maximum 9    
Acquirees other than Atheros [Member] | QCT [Member]
      
Acquisitions [Abstract]      
Business Acquisition Purchase Price Allocation Goodwill Amt 65,000,000 364,000,000 1,998,000,000
Acquirees other than Atheros [Member] | QWI [Member]
      
Acquisitions [Abstract]      
Business Acquisition Purchase Price Allocation Goodwill Amt 0 0 36,000,000
Acquirees other than Atheros [Member] | QTL [Member]
      
Acquisitions [Abstract]      
Business Acquisition Purchase Price Allocation Goodwill Amt 0 22,000,000 6,000,000
Acquirees other than Atheros [Member] | Other Nonreportable Segments [Member]
      
Acquisitions [Abstract]      
Business Acquisition Purchase Price Allocation Goodwill Amt $ 17,000,000 $ 131,000,000 $ 8,000,000