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Financial Instruments - Measured At Fair Value on Recurring Basis (Details) - USD ($) $ in Millions | Jul. 31, 2023 | Jan. 31, 2023
--- | --- | ---
Long-term |  |
Derivative contract liabilities | $ (11) | $ (31)
Total | 1,504 | 1,264
Derivative contract assets |  |
Long-term |  |
Derivative contract assets, fair value | 12 | 14
Commercial paper |  |
Short-term |  |
Marketable securities, short-term | 179 | 42
Corporate debt securities |  |
Short-term |  |
Marketable securities, short-term | 63 | 44
Long-term |  |
Marketable securities, long-term | 104 | 45
U.S. government securities |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 44 |
Short-term |  |
Marketable securities, short-term | 61 | 17
Long-term |  |
Marketable securities, long-term | 29 | 35
Asset-backed securities |  |
Short-term |  |
Marketable securities, short-term | 29 | 19
Long-term |  |
Marketable securities, long-term | 47 | 13
Municipal bonds |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 11 |
Other |  |
Short-term |  |
Marketable securities, short-term | 27 | 3
Long-term |  |
Marketable securities, long-term | 13 | 9
Agency mortgage backed securities |  |
Long-term |  |
Marketable securities, long-term | 26 |
Mutual funds |  |
Long-term |  |
Long-term other assets, fair value | 97 | 86
Convertible debt securities |  |
Long-term |  |
Long-term other assets, fair value |  | 2
Money market funds |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 499 | 737
Commercial paper |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 194 | 169
Certificates of deposit |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 75 | 35
U.S. government securities |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 44 | 13
Other |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 5 | 12
Level 1 |  |
Long-term |  |
Derivative contract liabilities | 0 | 0
Total | 596 | 827
Level 1 | Derivative contract assets |  |
Long-term |  |
Derivative contract assets, fair value | 0 | 0
Level 1 | Commercial paper |  |
Short-term |  |
Marketable securities, short-term | 0 | 0
Level 1 | Corporate debt securities |  |
Short-term |  |
Marketable securities, short-term | 0 | 0
Long-term |  |
Marketable securities, long-term | 0 | 0
Level 1 | U.S. government securities |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 |
Short-term |  |
Marketable securities, short-term | 0 | 0
Long-term |  |
Marketable securities, long-term | 0 | 0
Level 1 | Asset-backed securities |  |
Short-term |  |
Marketable securities, short-term | 0 | 0
Long-term |  |
Marketable securities, long-term | 0 | 0
Level 1 | Municipal bonds |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 |
Level 1 | Other |  |
Short-term |  |
Marketable securities, short-term | 0 | 0
Long-term |  |
Marketable securities, long-term | 0 | 0
Level 1 | Agency mortgage backed securities |  |
Long-term |  |
Marketable securities, long-term | 0 |
Level 1 | Mutual funds |  |
Long-term |  |
Long-term other assets, fair value | 97 | 86
Level 1 | Convertible debt securities |  |
Long-term |  |
Long-term other assets, fair value |  | 0
Level 1 | Money market funds |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 499 | 737
Level 1 | Commercial paper |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 | 0
Level 1 | Certificates of deposit |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 | 0
Level 1 | U.S. government securities |  |
Cash equivalents |  |
Cash Equivalents, Fair Value |  | 0
Level 1 | Other |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 | 4
Level 2 |  |
Long-term |  |
Derivative contract liabilities | (11) | (31)
Total | 908 | 435
Level 2 | Derivative contract assets |  |
Long-term |  |
Derivative contract assets, fair value | 12 | 14
Level 2 | Commercial paper |  |
Short-term |  |
Marketable securities, short-term | 179 | 42
Level 2 | Corporate debt securities |  |
Short-term |  |
Marketable securities, short-term | 63 | 44
Long-term |  |
Marketable securities, long-term | 104 | 45
Level 2 | U.S. government securities |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 44 |
Short-term |  |
Marketable securities, short-term | 61 | 17
Long-term |  |
Marketable securities, long-term | 29 | 35
Level 2 | Asset-backed securities |  |
Short-term |  |
Marketable securities, short-term | 29 | 19
Long-term |  |
Marketable securities, long-term | 47 | 13
Level 2 | Municipal bonds |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 11 |
Level 2 | Other |  |
Short-term |  |
Marketable securities, short-term | 27 | 3
Long-term |  |
Marketable securities, long-term | 13 | 9
Level 2 | Agency mortgage backed securities |  |
Long-term |  |
Marketable securities, long-term | 26 |
Level 2 | Mutual funds |  |
Long-term |  |
Long-term other assets, fair value | 0 | 0
Level 2 | Convertible debt securities |  |
Long-term |  |
Long-term other assets, fair value |  | 0
Level 2 | Money market funds |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 | 0
Level 2 | Commercial paper |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 194 | 169
Level 2 | Certificates of deposit |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 75 | 35
Level 2 | U.S. government securities |  |
Cash equivalents |  |
Cash Equivalents, Fair Value |  | 13
Level 2 | Other |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 5 | 8
Level 3 |  |
Long-term |  |
Derivative contract liabilities | 0 | 0
Total | 0 | 2
Level 3 | Derivative contract assets |  |
Long-term |  |
Derivative contract assets, fair value | 0 | 0
Level 3 | Commercial paper |  |
Short-term |  |
Marketable securities, short-term | 0 | 0
Level 3 | Corporate debt securities |  |
Short-term |  |
Marketable securities, short-term | 0 | 0
Long-term |  |
Marketable securities, long-term | 0 | 0
Level 3 | U.S. government securities |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 |
Short-term |  |
Marketable securities, short-term | 0 | 0
Long-term |  |
Marketable securities, long-term | 0 | 0
Level 3 | Asset-backed securities |  |
Short-term |  |
Marketable securities, short-term | 0 | 0
Long-term |  |
Marketable securities, long-term | 0 | 0
Level 3 | Municipal bonds |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 |
Level 3 | Other |  |
Short-term |  |
Marketable securities, short-term | 0 | 0
Long-term |  |
Marketable securities, long-term | 0 | 0
Level 3 | Agency mortgage backed securities |  |
Long-term |  |
Marketable securities, long-term | 0 |
Level 3 | Mutual funds |  |
Long-term |  |
Long-term other assets, fair value | 0 | 0
Level 3 | Convertible debt securities |  |
Long-term |  |
Long-term other assets, fair value |  | 2
Level 3 | Money market funds |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 | 0
Level 3 | Commercial paper |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 | 0
Level 3 | Certificates of deposit |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | 0 | 0
Level 3 | U.S. government securities |  |
Cash equivalents |  |
Cash Equivalents, Fair Value |  | 0
Level 3 | Other |  |
Cash equivalents |  |
Cash Equivalents, Fair Value | $ 0 | $ 0

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