Segment Information (Schedule of Revenue by Geographic Area) (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 30, 2021
May 01, 2020
Revenues From External Customers And Long-Lived Assets [Line Items]    
Revenue [1] $ 2,994 $ 2,734
United States    
Revenues From External Customers And Long-Lived Assets [Line Items]    
Revenue 1,466 1,363
International    
Revenues From External Customers And Long-Lived Assets [Line Items]    
Revenue $ 1,528 $ 1,371
[1] Includes related party revenue as follows (refer to Note C):
License$287 $323 
Subscription and SaaS173 115 
Services588 444