Annual report pursuant to Section 13 and 15(d)

Goodwill and Acquired Intangible Assets (Details) (Acquisition-Related Intangible Assets)

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Goodwill and Acquired Intangible Assets (Details) (Acquisition-Related Intangible Assets) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 28, 2013
Sep. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 29, 2012
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items]                      
Intangible assets, net, beginning of period       $ 96       $ 8 $ 96 $ 8  
Addition due to SeaMicro acquisition                   102  
Completion of in-process research and development                   0  
Amortization expense (4) (5) (4) (5) (4) (4) (4) (1) (18) (14) (29)
Intangible assets, net, end of period 78       96       78 96 8
Accumulated amortization of acquired intangible assets 572               572    
Weighted-average amortization period                 4 years 11 months 10 days    
Developed Technology
                      
Acquired Finite-Lived Intangible Assets [Line Items]                      
Intangible assets, net, beginning of period       82       0 82 0  
Addition due to SeaMicro acquisition                   86  
Completion of in-process research and development                   5  
Amortization expense                 (13) (9)  
Intangible assets, net, end of period 69       82       69 82  
Weighted-average amortization period                 6 years 0 months 20 days    
In Process Research and Development
                      
Acquired Finite-Lived Intangible Assets [Line Items]                      
Intangible assets, net, beginning of period       6       0 6 0  
Addition due to SeaMicro acquisition                   11  
Completion of in-process research and development                   (5)  
Amortization expense                 0 0  
Intangible assets, net, end of period 6       6       6 6  
Customer Relationships
                      
Acquired Finite-Lived Intangible Assets [Line Items]                      
Intangible assets, net, beginning of period       3       0 3 0  
Addition due to SeaMicro acquisition                   4  
Completion of in-process research and development                   0  
Amortization expense                 (1) (1)  
Intangible assets, net, end of period 2       3       2 3  
Weighted-average amortization period                 2 years 3 months 0 days    
Trademark and Trade Name
                      
Acquired Finite-Lived Intangible Assets [Line Items]                      
Intangible assets, net, beginning of period       5       8 5 8  
Addition due to SeaMicro acquisition                   1  
Completion of in-process research and development                   0  
Amortization expense                 (4) (4)  
Intangible assets, net, end of period $ 1       $ 5       $ 1 $ 5  
Weighted-average amortization period                 2 years 3 months 0 days