v3.26.1
Fair Value Measurement (Details) - USD ($)
$ in Millions
Apr. 30, 2026
Jan. 31, 2026
Total assets    
Marketable securities $ 2,902 $ 2,238
Equity securities 3 5
Total assets 9,874 7,407
Total liabilities    
Total liabilities 124  
Foreign currency derivative contracts    
Total assets    
Foreign currency derivative contracts 143  
Total liabilities    
Foreign currency derivative contracts 124  
Corporate notes and obligations    
Total assets    
Marketable securities 1,467 1,353
U.S. treasury securities    
Total assets    
Marketable securities 673 170
Mortgage-backed obligations    
Total assets    
Marketable securities 32 31
Asset-backed securities    
Total assets    
Marketable securities 551 622
Municipal securities    
Total assets    
Marketable securities 29 17
Commercial paper    
Total assets    
Marketable securities 94 30
Covered bonds    
Total assets    
Marketable securities 1 1
Other    
Total assets    
Marketable securities 55 14
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Total assets    
Equity securities 3 5
Total assets 5,675 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) | Covered bonds    
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 4,199 4,198
Total liabilities    
Total liabilities 124  
Significant Other Observable Inputs (Level 2) | Foreign currency derivative contracts    
Total assets    
Foreign currency derivative contracts 143  
Total liabilities    
Foreign currency derivative contracts 124  
Significant Other Observable Inputs (Level 2) | Corporate notes and obligations    
Total assets    
Marketable securities 1,467 1,353
Significant Other Observable Inputs (Level 2) | U.S. treasury securities    
Total assets    
Marketable securities 673 170
Significant Other Observable Inputs (Level 2) | Mortgage-backed obligations    
Total assets    
Marketable securities 32 31
Significant Other Observable Inputs (Level 2) | Asset-backed securities    
Total assets    
Marketable securities 551 622
Significant Other Observable Inputs (Level 2) | Municipal securities    
Total assets    
Marketable securities 29 17
Significant Other Observable Inputs (Level 2) | Commercial paper    
Total assets    
Marketable securities 94 30
Significant Other Observable Inputs (Level 2) | Covered bonds    
Total assets    
Marketable securities 1 1
Significant Other Observable Inputs (Level 2) | Other    
Total assets    
Marketable securities 55 14
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) | Covered bonds    
Total assets    
Marketable securities 0 0
Significant Unobservable Inputs (Level 3) | Other    
Total assets    
Marketable securities 0 0
Significant Unobservable Inputs (Level 3) | Privately held equity securities | Fair value, non-recurring    
Total liabilities    
Investments, fair value 7,800 7,600
Time deposits | Cash and cash equivalents    
Total assets    
Cash equivalents 993 1,393
Time deposits | Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Total assets    
Cash equivalents 0 0
Time deposits | Cash and cash equivalents | Significant Other Observable Inputs (Level 2)    
Total assets    
Cash equivalents 993 1,393
Time deposits | Cash and cash equivalents | Significant Unobservable Inputs (Level 3)    
Total assets    
Cash equivalents 0 0
Money market mutual funds | Cash and cash equivalents    
Total assets    
Cash equivalents 5,672 3,204
Money market mutual funds | Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Total assets    
Cash equivalents 5,672 3,204
Money market mutual funds | Cash and cash equivalents | Significant Other Observable Inputs (Level 2)    
Total assets    
Cash equivalents 0 0
Money market mutual funds | Cash and cash equivalents | Significant Unobservable Inputs (Level 3)    
Total assets    
Cash equivalents 0 0
Cash equivalent securities    
Total assets    
Cash equivalents 2,100 2,200
Cash equivalent securities | Cash and cash equivalents    
Total assets    
Cash equivalents 161 567
Cash equivalent securities | Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Total assets    
Cash equivalents 0 0
Cash equivalent securities | Cash and cash equivalents | Significant Other Observable Inputs (Level 2)    
Total assets    
Cash equivalents 161 567
Cash equivalent securities | Cash and cash equivalents | Significant Unobservable Inputs (Level 3)    
Total assets    
Cash equivalents $ 0 $ 0