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Significant Accounting Policies Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Advertising expense $ 534 $ 584 $ 629
Advertising and marketing costs 1,100 1,100 1,100
Research and development expense 112 $ 109 $ 93
Net monetary assets $ 1    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 5 years