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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 24, 2020
Apr. 26, 2019
Apr. 27, 2018
Apr. 27, 2019
Shipping and Handling        
Cost of products sold $ 9,424 $ 9,155 $ 9,067  
New Accounting Standards        
Right-of-use assets 927      
Lease liability 945      
Accounting Standards Update 2016-02        
New Accounting Standards        
Right-of-use assets       $ 1,000
Lease liability       $ 1,000
Shipping and Handling        
Shipping and Handling        
Cost of products sold $ 347 $ 350 $ 363  
Minimum        
Intangible Assets        
Intangible assets, estimated useful life 3 years      
Maximum        
Intangible Assets        
Intangible assets, estimated useful life 20 years