v3.23.1
Summary of Significant Accounting Policies (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended
Apr. 30, 2023
May 01, 2022
Feb. 28, 2023
Jan. 31, 2023
Property, Plant and Equipment [Line Items]        
Cost of revenue $ (2,544) $ (2,857)    
Operating expenses (2,508) (3,563)    
Operating income (loss) 2,140 1,868    
Net income $ 2,043 $ 1,618    
Basic (in dollars per share) $ 0.83 $ 0.65    
Diluted (in dollars per share) $ 0.82 $ 0.64    
Service Life        
Property, Plant and Equipment [Line Items]        
Cost of revenue $ 2      
Operating expenses 31      
Operating income (loss) 33      
Net income $ 28      
Basic (in dollars per share) $ 0.01      
Diluted (in dollars per share) $ 0.01      
Storage and Network Equipment        
Property, Plant and Equipment [Line Items]        
Useful life       3 years
Storage and Network Equipment | Minimum        
Property, Plant and Equipment [Line Items]        
Useful life     4 years  
Storage and Network Equipment | Maximum        
Property, Plant and Equipment [Line Items]        
Useful life     5 years  
Assembling and Testing Equipment        
Property, Plant and Equipment [Line Items]        
Useful life     7 years 5 years