Annual report pursuant to Section 13 and 15(d)

Investments Investments, Equity Investments (Details)

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Investments Investments, Equity Investments (Details) - USD ($)
 3 Months Ended 12 Months Ended
Sep. 29, 2018
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Dec. 26, 2015
Schedule of Investments [Line Items]          
Proceeds from Equity Method Investment, Distribution, Return of Capital   $ 2,688,000,000 $ 2,802,000,000 $ 5,236,000,000  
Marketable equity securities   450,000,000 1,440,000,000    
Non-marketable equity securities   3,480,000,000 2,978,000,000    
Equity method investments   37,000,000 1,624,000,000    
Total   3,967,000,000 6,042,000,000    
Ongoing mark-to-market adjustments on marketable equity securities   277,000,000 (129,000,000) 0  
Observable price adjustments on non-marketable equity securities   (293,000,000) (202,000,000) 0  
Impairment charges   (122,000,000) (424,000,000) (833,000,000)  
Sale of equity investments and other   1,091,000,000 226,000,000 3,484,000,000  
Gain (Loss) on Investments   1,539,000,000 (125,000,000) 2,651,000,000  
Net gains (losses) recognized during the period on equity securities   734,000,000 298,000,000    
Less: Net (gains) losses recognized during the period on equity securities sold during the period   (424,000,000) (445,000,000)    
Unrealized gains (losses) recognized during the period on equity securities still held at the reporting date   310,000,000 (147,000,000)    
Equity method investee losses   0 (153,000,000) (223,000,000)  
Cloudera, Inc. [Member]          
Schedule of Investments [Line Items]          
Impairment on equity method investments   $ 278,000,000      
Beijing UniSpreadtrum Technology Ltd [Member]          
Schedule of Investments [Line Items]          
Equity method investments         $ 966,000,000
Impairment charges       (308,000,000)  
IM Flash Technologies, LLC [Member]          
Schedule of Investments [Line Items]          
Equity Method Investment, Ownership Percentage   49.00%      
Equity method investments     1,600,000,000    
Impairment on equity method investments $ 290,000,000        
McAfee [Member]          
Schedule of Investments [Line Items]          
Equity Method Investment, Ownership Percentage   49.00%      
Proceeds from Equity Method Investment, Distribution, Return of Capital   $ 632,000,000   735,000,000  
Equity method investments   0      
ASML Holding N.V. [Member]          
Schedule of Investments [Line Items]          
Marketable equity securities   1,100,000,000      
Equity method investee losses   3,400,000,000      
Cost-method Investments [Member]          
Schedule of Investments [Line Items]          
Impairment charges   $ (122,000,000) $ (132,000,000) $ (555,000,000)