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Financial Instruments - Schedule of Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions | Jul. 31, 2025 | Jan. 31, 2025
--- | --- | ---
Long-term |  |
Derivative contract liabilities | $ (30.0) | $ (22.0)
Total | 1,923.0 | 1,442.0
Derivative contract assets |  |
Long-term |  |
Derivative contract assets, fair value | 33.0 | 28.0
Corporate debt securities |  |
Short-term |  |
Fair Value | 53.0 | 79.0
Long-term |  |
Fair Value | 114.0 | 97.0
U.S. government securities |  |
Cash equivalents: |  |
Fair Value | 50.0 |
Short-term |  |
Fair Value | 71.0 | 74.0
Long-term |  |
Fair Value | 60.0 | 51.0
Commercial paper |  |
Short-term |  |
Fair Value | 55.0 | 96.0
Asset-backed securities |  |
Short-term |  |
Fair Value | 20.0 | 19.0
Long-term |  |
Fair Value | 72.0 | 71.0
Certificates of deposit |  |
Short-term |  |
Fair Value | 18.0 |
Agency bonds |  |
Long-term |  |
Fair Value |  | 40.0
Other |  |
Short-term |  |
Fair Value | 5.0 | 19.0
Long-term |  |
Fair Value | 7.0 | 8.0
Agency mortgage-backed securities |  |
Short-term |  |
Fair Value | 11.0 |
Long-term |  |
Fair Value | 29.0 | 40.0
Mutual funds |  |
Long-term |  |
Long-term other assets, fair value | 130.0 | 118.0
Money market funds |  |
Cash equivalents: |  |
Fair Value | 1,095.0 | 618.0
Commercial paper |  |
Cash equivalents: |  |
Fair Value | 85.0 | 85.0
Certificates of deposit |  |
Cash equivalents: |  |
Fair Value | 44.0 | 38.0
U.S. government securities |  |
Cash equivalents: |  |
Fair Value | 50.0 | 19.0
Other |  |
Cash equivalents: |  |
Fair Value | 1.0 | 4.0
Level 1 |  |
Long-term |  |
Derivative contract liabilities | 0.0 | 0.0
Total | 1,225.0 | 736.0
Level 1 | Derivative contract assets |  |
Long-term |  |
Derivative contract assets, fair value | 0.0 | 0.0
Level 1 | Corporate debt securities |  |
Short-term |  |
Fair Value | 0.0 | 0.0
Long-term |  |
Fair Value | 0.0 | 0.0
Level 1 | U.S. government securities |  |
Cash equivalents: |  |
Fair Value | 0.0 |
Short-term |  |
Fair Value | 0.0 | 0.0
Long-term |  |
Fair Value | 0.0 | 0.0
Level 1 | Commercial paper |  |
Short-term |  |
Fair Value | 0.0 | 0.0
Level 1 | Asset-backed securities |  |
Short-term |  |
Fair Value | 0.0 | 0.0
Long-term |  |
Fair Value | 0.0 | 0.0
Level 1 | Certificates of deposit |  |
Short-term |  |
Fair Value | 0.0 |
Level 1 | Agency bonds |  |
Long-term |  |
Fair Value |  | 0.0
Level 1 | Other |  |
Short-term |  |
Fair Value | 0.0 | 0.0
Long-term |  |
Fair Value | 0.0 | 0.0
Level 1 | Agency mortgage-backed securities |  |
Short-term |  |
Fair Value | 0.0 |
Long-term |  |
Fair Value | 0.0 |
Level 1 | Mutual funds |  |
Long-term |  |
Long-term other assets, fair value | 130.0 | 118.0
Level 1 | Money market funds |  |
Cash equivalents: |  |
Fair Value | 1,095.0 | 618.0
Level 1 | Commercial paper |  |
Cash equivalents: |  |
Fair Value | 0.0 | 0.0
Level 1 | Certificates of deposit |  |
Cash equivalents: |  |
Fair Value | 0.0 | 0.0
Level 1 | U.S. government securities |  |
Cash equivalents: |  |
Fair Value |  | 0.0
Level 1 | Other |  |
Cash equivalents: |  |
Fair Value | 0.0 | 0.0
Level 2 |  |
Long-term |  |
Derivative contract liabilities | (30.0) | (22.0)
Total | 698.0 | 706.0
Level 2 | Derivative contract assets |  |
Long-term |  |
Derivative contract assets, fair value | 33.0 | 28.0
Level 2 | Corporate debt securities |  |
Short-term |  |
Fair Value | 53.0 | 79.0
Long-term |  |
Fair Value | 114.0 | 97.0
Level 2 | U.S. government securities |  |
Cash equivalents: |  |
Fair Value | 50.0 |
Short-term |  |
Fair Value | 71.0 | 74.0
Long-term |  |
Fair Value | 60.0 | 51.0
Level 2 | Commercial paper |  |
Short-term |  |
Fair Value | 55.0 | 96.0
Level 2 | Asset-backed securities |  |
Short-term |  |
Fair Value | 20.0 | 19.0
Long-term |  |
Fair Value | 72.0 | 71.0
Level 2 | Certificates of deposit |  |
Short-term |  |
Fair Value | 18.0 |
Level 2 | Agency bonds |  |
Long-term |  |
Fair Value |  | 40.0
Level 2 | Other |  |
Short-term |  |
Fair Value | 5.0 | 19.0
Long-term |  |
Fair Value | 7.0 | 8.0
Level 2 | Agency mortgage-backed securities |  |
Short-term |  |
Fair Value | 11.0 |
Long-term |  |
Fair Value | 29.0 |
Level 2 | Mutual funds |  |
Long-term |  |
Long-term other assets, fair value | 0.0 | 0.0
Level 2 | Money market funds |  |
Cash equivalents: |  |
Fair Value | 0.0 | 0.0
Level 2 | Commercial paper |  |
Cash equivalents: |  |
Fair Value | 85.0 | 85.0
Level 2 | Certificates of deposit |  |
Cash equivalents: |  |
Fair Value | 44.0 | 38.0
Level 2 | U.S. government securities |  |
Cash equivalents: |  |
Fair Value |  | 19.0
Level 2 | Other |  |
Cash equivalents: |  |
Fair Value | 1.0 | 4.0
Level 3 |  |
Long-term |  |
Derivative contract liabilities | 0.0 | 0.0
Total | 0.0 | 0.0
Level 3 | Derivative contract assets |  |
Long-term |  |
Derivative contract assets, fair value | 0.0 | 0.0
Level 3 | Corporate debt securities |  |
Short-term |  |
Fair Value | 0.0 | 0.0
Long-term |  |
Fair Value | 0.0 | 0.0
Level 3 | U.S. government securities |  |
Cash equivalents: |  |
Fair Value | 0.0 |
Short-term |  |
Fair Value | 0.0 | 0.0
Long-term |  |
Fair Value | 0.0 | 0.0
Level 3 | Commercial paper |  |
Short-term |  |
Fair Value | 0.0 | 0.0
Level 3 | Asset-backed securities |  |
Short-term |  |
Fair Value | 0.0 | 0.0
Long-term |  |
Fair Value | 0.0 | 0.0
Level 3 | Certificates of deposit |  |
Short-term |  |
Fair Value | 0.0 |
Level 3 | Agency bonds |  |
Long-term |  |
Fair Value |  | 0.0
Level 3 | Other |  |
Short-term |  |
Fair Value | 0.0 | 0.0
Long-term |  |
Fair Value | 0.0 | 0.0
Level 3 | Agency mortgage-backed securities |  |
Short-term |  |
Fair Value | 0.0 |
Long-term |  |
Fair Value | 0.0 |
Level 3 | Mutual funds |  |
Long-term |  |
Long-term other assets, fair value | 0.0 | 0.0
Level 3 | Money market funds |  |
Cash equivalents: |  |
Fair Value | 0.0 | 0.0
Level 3 | Commercial paper |  |
Cash equivalents: |  |
Fair Value | 0.0 | 0.0
Level 3 | Certificates of deposit |  |
Cash equivalents: |  |
Fair Value | 0.0 | 0.0
Level 3 | U.S. government securities |  |
Cash equivalents: |  |
Fair Value |  | 0.0
Level 3 | Other |  |
Cash equivalents: |  |
Fair Value | $ 0.0 | $ 0.0

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