v3.25.4
Intangible Assets Acquired Through Business Combinations and Goodwill - Summary of Intangible Assets Acquired From Business Combinations (Details) - USD ($)
$ in Millions
 12 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2024
Finite-lived Intangible Assets [Roll Forward]      
Intangible assets, gross, beginning balance $ 10,183    
Additions and retirements, net 3,956    
Intangible assets, gross, ending balance 14,139 $ 10,183  
Accumulated amortization, beginning balance (5,755)    
Expense and retirements, net (1,569)    
Accumulated amortization, ending balance (7,324) (5,755)  
Intangible assets, net, beginning balance 4,428    
Intangible assets, net, ending balance $ 6,815 4,428  
Weighted Average Remaining Useful Life (Years) 5 years 4 months 24 days    
Amortization of intangible assets $ 1,700 1,600 $ 1,900
Acquired developed technology      
Finite-lived Intangible Assets [Roll Forward]      
Intangible assets, gross, beginning balance 2,958    
Additions and retirements, net 1,838    
Intangible assets, gross, ending balance 4,796 2,958  
Accumulated amortization, beginning balance (1,753)    
Expense and retirements, net (654)    
Accumulated amortization, ending balance (2,407) (1,753)  
Intangible assets, net, beginning balance 1,205    
Intangible assets, net, ending balance $ 2,389 1,205  
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 $ 6,894    
Additions and retirements, net 1,765    
Intangible assets, gross, ending balance 8,659 6,894  
Accumulated amortization, beginning balance (3,820)    
Expense and retirements, net (820)    
Accumulated amortization, ending balance (4,640) (3,820)  
Intangible assets, net, beginning balance 3,074    
Intangible assets, net, ending balance $ 4,019 3,074  
Weighted Average Remaining Useful Life (Years) 6 years 3 months 18 days    
Other      
Finite-lived Intangible Assets [Roll Forward]      
Intangible assets, gross, beginning balance $ 331    
Additions and retirements, net 353    
Intangible assets, gross, ending balance 684 331  
Accumulated amortization, beginning balance (182)    
Expense and retirements, net (95)    
Accumulated amortization, ending balance (277) (182)  
Intangible assets, net, beginning balance 149    
Intangible assets, net, ending balance $ 407 $ 149  
Weighted Average Remaining Useful Life (Years) 2 years 1 month 6 days