v3.26.1
Intangible Assets Acquired Through Business Combinations and Goodwill - Summary of Intangible Assets Acquired From Business Combinations (Details) - USD ($)
$ in Millions
 3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Finite-lived Intangible Assets [Roll Forward]    
Intangible assets, gross, beginning balance $ 14,139  
Additions and retirements, net 396  
Intangible assets, gross, ending balance 14,535  
Accumulated amortization, beginning balance (7,324)  
Expense and retirements, net (561)  
Accumulated amortization, ending balance (7,885)  
Intangible assets, net, beginning balance 6,815  
Intangible assets, net, ending balance $ 6,650  
Weighted Average Remaining Useful Life (Years) 5 years 4 months 24 days  
Amortization of intangible assets $ 561 $ 395
Acquired developed technology    
Finite-lived Intangible Assets [Roll Forward]    
Intangible assets, gross, beginning balance 4,796  
Additions and retirements, net 260  
Intangible assets, gross, ending balance 5,056  
Accumulated amortization, beginning balance (2,407)  
Expense and retirements, net (244)  
Accumulated amortization, ending balance (2,651)  
Intangible assets, net, beginning balance 2,389  
Intangible assets, net, ending balance $ 2,405  
Weighted Average Remaining Useful Life (Years) 4 years 4 months 24 days  
Customer relationships    
Finite-lived Intangible Assets [Roll Forward]    
Intangible assets, gross, beginning balance $ 8,659  
Additions and retirements, net 125  
Intangible assets, gross, ending balance 8,784  
Accumulated amortization, beginning balance (4,640)  
Expense and retirements, net (261)  
Accumulated amortization, ending balance (4,901)  
Intangible assets, net, beginning balance 4,019  
Intangible assets, net, ending balance $ 3,883  
Weighted Average Remaining Useful Life (Years) 6 years 3 months 18 days  
Other    
Finite-lived Intangible Assets [Roll Forward]    
Intangible assets, gross, beginning balance $ 684  
Additions and retirements, net 11  
Intangible assets, gross, ending balance 695  
Accumulated amortization, beginning balance (277)  
Expense and retirements, net (56)  
Accumulated amortization, ending balance (333)  
Intangible assets, net, beginning balance 407  
Intangible assets, net, ending balance $ 362  
Weighted Average Remaining Useful Life (Years) 1 year 9 months 18 days