v3.26.1
Fair Value Measurement - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Millions
Jul. 31, 2026
Jan. 31, 2026
Total assets    
Marketable securities $ 3,093 $ 2,238
Equity securities 0 5
Total assets 9,521 7,407
Total liabilities    
Total liabilities 155  
Cash 2,000 2,200
Foreign currency derivative contracts    
Total assets    
Foreign currency derivative contracts 98  
Total liabilities    
Foreign currency derivative contracts 155  
Corporate notes and obligations    
Total assets    
Marketable securities 1,564 1,353
U.S. treasury securities    
Total assets    
Marketable securities 740 170
Mortgage-backed obligations    
Total assets    
Marketable securities 35 31
Asset-backed securities    
Total assets    
Marketable securities 562 622
Municipal securities    
Total assets    
Marketable securities 18 17
Commercial paper    
Total assets    
Marketable securities 104 30
Other    
Total assets    
Marketable securities 70 15
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Total assets    
Equity securities 0 5
Total assets 3,479 3,209
Total liabilities    
Total liabilities 0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign currency derivative contracts    
Total assets    
Foreign currency derivative contracts 0  
Total liabilities    
Foreign currency derivative contracts 0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate notes and obligations    
Total assets    
Marketable securities 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. treasury securities    
Total assets    
Marketable securities 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed obligations    
Total assets    
Marketable securities 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities    
Total assets    
Marketable securities 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal securities    
Total assets    
Marketable securities 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial paper    
Total assets    
Marketable securities 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other    
Total assets    
Marketable securities 0 0
Significant Other Observable Inputs (Level 2)    
Total assets    
Equity securities 0 0
Total assets 6,042 4,198
Total liabilities    
Total liabilities 155  
Significant Other Observable Inputs (Level 2) | Foreign currency derivative contracts    
Total assets    
Foreign currency derivative contracts 98  
Total liabilities    
Foreign currency derivative contracts 155  
Significant Other Observable Inputs (Level 2) | Corporate notes and obligations    
Total assets    
Marketable securities 1,564 1,353
Significant Other Observable Inputs (Level 2) | U.S. treasury securities    
Total assets    
Marketable securities 740 170
Significant Other Observable Inputs (Level 2) | Mortgage-backed obligations    
Total assets    
Marketable securities 35 31
Significant Other Observable Inputs (Level 2) | Asset-backed securities    
Total assets    
Marketable securities 562 622
Significant Other Observable Inputs (Level 2) | Municipal securities    
Total assets    
Marketable securities 18 17
Significant Other Observable Inputs (Level 2) | Commercial paper    
Total assets    
Marketable securities 104 30
Significant Other Observable Inputs (Level 2) | Other    
Total assets    
Marketable securities 70 15
Significant Unobservable Inputs (Level 3)    
Total assets    
Equity securities 0 0
Total assets 0 0
Total liabilities    
Total liabilities 0  
Significant Unobservable Inputs (Level 3) | Foreign currency derivative contracts    
Total assets    
Foreign currency derivative contracts 0  
Total liabilities    
Foreign currency derivative contracts 0  
Significant Unobservable Inputs (Level 3) | Corporate notes and obligations    
Total assets    
Marketable securities 0 0
Significant Unobservable Inputs (Level 3) | U.S. treasury securities    
Total assets    
Marketable securities 0 0
Significant Unobservable Inputs (Level 3) | Mortgage-backed obligations    
Total assets    
Marketable securities 0 0
Significant Unobservable Inputs (Level 3) | Asset-backed securities    
Total assets    
Marketable securities 0 0
Significant Unobservable Inputs (Level 3) | Municipal securities    
Total assets    
Marketable securities 0 0
Significant Unobservable Inputs (Level 3) | Commercial paper    
Total assets    
Marketable securities 0 0
Significant Unobservable Inputs (Level 3) | Other    
Total assets    
Marketable securities 0 0
Time deposits    
Total assets    
Cash equivalents 1,914 1,393
Time deposits | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Total assets    
Cash equivalents 0 0
Time deposits | Significant Other Observable Inputs (Level 2)    
Total assets    
Cash equivalents 1,914 1,393
Time deposits | Significant Unobservable Inputs (Level 3)    
Total assets    
Cash equivalents 0 0
Money market mutual funds    
Total assets    
Cash equivalents 3,479 3,204
Money market mutual funds | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Total assets    
Cash equivalents 3,479 3,204
Money market mutual funds | Significant Other Observable Inputs (Level 2)    
Total assets    
Cash equivalents 0 0
Money market mutual funds | Significant Unobservable Inputs (Level 3)    
Total assets    
Cash equivalents 0 0
Cash equivalent securities    
Total assets    
Cash equivalents 937 567
Cash equivalent securities | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Total assets    
Cash equivalents 0 0
Cash equivalent securities | Significant Other Observable Inputs (Level 2)    
Total assets    
Cash equivalents 937 567
Cash equivalent securities | Significant Unobservable Inputs (Level 3)    
Total assets    
Cash equivalents $ 0 $ 0