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 | |