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Financial Instruments - Measured At Fair Value on Recurring Basis (Details) - USD ($)
$ in Millions
Jul. 31, 2022
Jan. 31, 2022
Short-term    
Derivative contract assets, fair value $ 2  
Total 974 $ 805
Foreign Exchange Contract    
Short-term    
Derivative contract assets, fair value 78 18
Derivative contract liabilities (14) (11)
Money market funds    
Cash equivalents    
Cash equivalents 593 302
Commercial paper    
Cash equivalents    
Cash equivalents 62 55
Commercial paper | Short-term    
Short-term    
Debt securities, fair value   103
U.S. government securities    
Cash equivalents    
Cash equivalents   25
U.S. government securities | Short-term    
Short-term    
Debt securities, fair value 40 13
Custody cash deposit    
Cash equivalents    
Cash equivalents   18
Corporate debt securities    
Cash equivalents    
Cash equivalents   18
Corporate debt securities | Short-term    
Short-term    
Debt securities, fair value 27 61
Corporate debt securities | Long-term    
Short-term    
Debt securities, fair value 35 44
Certificates of deposit    
Cash equivalents    
Cash equivalents 24 6
Certificates of deposit | Short-term    
Short-term    
Debt securities, fair value   14
Asset-backed securities | Short-term    
Short-term    
Debt securities, fair value 7 26
Municipal bonds | Short-term    
Short-term    
Debt securities, fair value   11
Common stock | Short-term    
Short-term    
Debt securities, fair value   4
Other    
Cash equivalents    
Cash equivalents 9 4
Other | Short-term    
Short-term    
Debt securities, fair value 11 4
Other | Long-term    
Short-term    
Debt securities, fair value 11 1
Mutual funds    
Short-term    
Mutual funds 86 89
Convertible debt securities    
Short-term    
Debt securities, fair value 3  
Mutual funds 3  
Level 1    
Short-term    
Derivative contract assets, fair value 0  
Total 684 413
Level 1 | Foreign Exchange Contract    
Short-term    
Derivative contract assets, fair value 0 0
Derivative contract liabilities 0
Level 1 | Money market funds    
Cash equivalents    
Cash equivalents 593 302
Level 1 | Commercial paper    
Cash equivalents    
Cash equivalents 0 0
Level 1 | Commercial paper | Short-term    
Short-term    
Debt securities, fair value   0
Level 1 | U.S. government securities    
Cash equivalents    
Cash equivalents   0
Level 1 | U.S. government securities | Short-term    
Short-term    
Debt securities, fair value 0 0
Level 1 | Custody cash deposit    
Cash equivalents    
Cash equivalents   18
Level 1 | Corporate debt securities    
Cash equivalents    
Cash equivalents   0
Level 1 | Corporate debt securities | Short-term    
Short-term    
Debt securities, fair value 0 0
Level 1 | Corporate debt securities | Long-term    
Short-term    
Debt securities, fair value 0 0
Level 1 | Certificates of deposit    
Cash equivalents    
Cash equivalents 0 0
Level 1 | Certificates of deposit | Short-term    
Short-term    
Debt securities, fair value   0
Level 1 | Asset-backed securities | Short-term    
Short-term    
Debt securities, fair value 0 0
Level 1 | Municipal bonds | Short-term    
Short-term    
Debt securities, fair value   0
Level 1 | Common stock | Short-term    
Short-term    
Debt securities, fair value   4
Level 1 | Other    
Cash equivalents    
Cash equivalents 3 0
Level 1 | Other | Short-term    
Short-term    
Debt securities, fair value 2 0
Level 1 | Other | Long-term    
Short-term    
Debt securities, fair value 0 0
Level 1 | Mutual funds    
Short-term    
Mutual funds 86 89
Level 1 | Convertible debt securities    
Short-term    
Mutual funds 0  
Level 2    
Short-term    
Derivative contract assets, fair value 0  
Total 285 392
Level 2 | Foreign Exchange Contract    
Short-term    
Derivative contract assets, fair value 78 18
Derivative contract liabilities (14) (11)
Level 2 | Money market funds    
Cash equivalents    
Cash equivalents 0 0
Level 2 | Commercial paper    
Cash equivalents    
Cash equivalents 62 55
Level 2 | Commercial paper | Short-term    
Short-term    
Debt securities, fair value   103
Level 2 | U.S. government securities    
Cash equivalents    
Cash equivalents   25
Level 2 | U.S. government securities | Short-term    
Short-term    
Debt securities, fair value 40 13
Level 2 | Custody cash deposit    
Cash equivalents    
Cash equivalents   0
Level 2 | Corporate debt securities    
Cash equivalents    
Cash equivalents   18
Level 2 | Corporate debt securities | Short-term    
Short-term    
Debt securities, fair value 27 61
Level 2 | Corporate debt securities | Long-term    
Short-term    
Debt securities, fair value 35 44
Level 2 | Certificates of deposit    
Cash equivalents    
Cash equivalents 24 6
Level 2 | Certificates of deposit | Short-term    
Short-term    
Debt securities, fair value   14
Level 2 | Asset-backed securities | Short-term    
Short-term    
Debt securities, fair value 7 26
Level 2 | Municipal bonds | Short-term    
Short-term    
Debt securities, fair value   11
Level 2 | Common stock | Short-term    
Short-term    
Debt securities, fair value   0
Level 2 | Other    
Cash equivalents    
Cash equivalents 6 4
Level 2 | Other | Short-term    
Short-term    
Debt securities, fair value 9 4
Level 2 | Other | Long-term    
Short-term    
Debt securities, fair value 11 1
Level 2 | Mutual funds    
Short-term    
Mutual funds 0 0
Level 2 | Convertible debt securities    
Short-term    
Mutual funds 0  
Level 3    
Short-term    
Derivative contract assets, fair value 2  
Total 5 0
Level 3 | Foreign Exchange Contract    
Short-term    
Derivative contract assets, fair value 0 0
Derivative contract liabilities 0 0
Level 3 | Money market funds    
Cash equivalents    
Cash equivalents 0 0
Level 3 | Commercial paper    
Cash equivalents    
Cash equivalents 0 0
Level 3 | Commercial paper | Short-term    
Short-term    
Debt securities, fair value   0
Level 3 | U.S. government securities    
Cash equivalents    
Cash equivalents   0
Level 3 | U.S. government securities | Short-term    
Short-term    
Debt securities, fair value 0 0
Level 3 | Custody cash deposit    
Cash equivalents    
Cash equivalents   0
Level 3 | Corporate debt securities    
Cash equivalents    
Cash equivalents   0
Level 3 | Corporate debt securities | Short-term    
Short-term    
Debt securities, fair value 0 0
Level 3 | Corporate debt securities | Long-term    
Short-term    
Debt securities, fair value 0 0
Level 3 | Certificates of deposit    
Cash equivalents    
Cash equivalents 0 0
Level 3 | Certificates of deposit | Short-term    
Short-term    
Debt securities, fair value   0
Level 3 | Asset-backed securities | Short-term    
Short-term    
Debt securities, fair value 0 0
Level 3 | Municipal bonds | Short-term    
Short-term    
Debt securities, fair value   0
Level 3 | Common stock | Short-term    
Short-term    
Debt securities, fair value   0
Level 3 | Other    
Cash equivalents    
Cash equivalents 0 0
Level 3 | Other | Short-term    
Short-term    
Debt securities, fair value 0 0
Level 3 | Other | Long-term    
Short-term    
Debt securities, fair value 0 0
Level 3 | Mutual funds    
Short-term    
Mutual funds 0 $ 0
Level 3 | Convertible debt securities    
Short-term    
Mutual funds $ 3