Annual report pursuant to Section 13 and 15(d)

Investments, Equity Method and Cost Method Investments (Detail)

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Investments, Equity Method and Cost Method Investments (Detail) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 28, 2019
Sep. 29, 2018
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Dec. 26, 2015
Schedule of Equity Method Investments [Line Items]            
Equity method investments $ 37   $ 37 $ 1,624    
Proceeds from Equity Method Investment, Distribution, Return of Capital     2,688 2,802 $ 5,236  
Impairments     $ 122 424 833  
IM Flash Technologies, LLC [Member]            
Schedule of Equity Method Investments [Line Items]            
Impairment on equity method investments   $ 290        
Equity method investments       1,600    
Equity Method Investment, Ownership Percentage 49.00%   49.00%      
Proportionate share of equity method investment costs $ 550   $ 550 494 415  
Cash proceeds from sale of equity method investment     1,700      
Gain on sale of equity method investment 107          
McAfee [Member]            
Schedule of Equity Method Investments [Line Items]            
Equity method investments $ 0   $ 0      
Equity Method Investment, Ownership Percentage 49.00%   49.00%      
Proceeds from Equity Method Investment, Distribution, Return of Capital     $ 632   735  
Cloudera, Inc. [Member]            
Schedule of Equity Method Investments [Line Items]            
Impairment on equity method investments     278      
Beijing UniSpreadtrum Technology Ltd [Member]            
Schedule of Equity Method Investments [Line Items]            
Equity method investments           $ 966
Impairments         308  
Cost-method Investments [Member]            
Schedule of Equity Method Investments [Line Items]            
Impairments     $ 122 $ 132 $ 555