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Commitments and Contingencies (Details)
$ in Millions
Jan. 24, 2020
USD ($)
patent
Oct. 22, 2019
patent
Aug. 20, 2019
patent
Apr. 25, 2019
claim
patent
Jul. 31, 2020
USD ($)
Loss Contingencies [Line Items]          
New material purchase commitments         $ 1,200
Minimum payments under commitments, fiscal 2022         250
Minimum payments under commitments, fiscal 2023         250
Minimum payments under commitments, prior to the end of fiscal 2024         $ 700
Cirba Inc. Vs. VMware          
Loss Contingencies [Line Items]          
Patent infringement claims | patent       2  
Trademark infringement claims | claim       3  
Number of patents allegedly infringed upon | patent   4 4    
Number of patents willfully infringed upon | patent 2        
Damages awarded $ 237