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Financial Instruments - Schedule of Cost and Fair Value of Financial Instruments (Details) - USD ($) $ in Millions | Oct. 31, 2024 | Jan. 31, 2024
--- | --- | ---
Cash equivalents: |  |
Amortized Cost | $ 1,437 | $ 1,892
Long-term |  |
Total, amortized cost | 1,385 | 1,797
Total, Gross unrealized gains | 13 | 13
Total, Gross unrealized losses | (2) | (1)
Total, fair value | 1,396 | 1,809
Commercial paper |  |
Short-term |  |
Amortized Cost | 162 | 159
Fair Value | 162 | 159
Corporate debt securities |  |
Short-term |  |
Amortized Cost | 78 | 75
Fair Value | 78 | 75
Long-term |  |
Amortized Cost | 105 | 103
Gross Unrealized Gains |  | 1
Gross Unrealized Losses | (1) | 0
Fair Value | 104 | 104
U.S. government securities |  |
Cash equivalents: |  |
Fair Value | 77 |
Short-term |  |
Amortized Cost |  | 70
Fair Value |  | 70
Long-term |  |
Amortized Cost | 44 | 24
Gross Unrealized Gains |  | 0
Gross Unrealized Losses | (1) | 0
Fair Value | 43 | 24
Asset-backed securities |  |
Short-term |  |
Amortized Cost | 18 | 28
Fair Value | 18 | 28
Long-term |  |
Amortized Cost | 66 | 59
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 66 | 59
Other |  |
Short-term |  |
Amortized Cost | 18 | 22
Fair Value | 18 | 22
Long-term |  |
Amortized Cost | 5 | 11
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 5 | 11
Agency mortgage-backed securities |  |
Long-term |  |
Amortized Cost | 46 | 36
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 46 | 36
Mutual funds |  |
Long-term |  |
Other investments | 105 | 89
Other investments, gross unrealized gains | 13 | 12
Other investments, gross unrealized losses | 0 | (1)
Other investments, fair value | 118 | 100
Money market funds |  |
Cash equivalents: |  |
Amortized Cost | 367 | 693
Fair Value | 367 | 693
Commercial paper |  |
Cash equivalents: |  |
Amortized Cost | 200 | 250
Fair Value | 200 | 250
Certificates of deposit |  |
Cash equivalents: |  |
Amortized Cost | 92 | 80
Fair Value | 92 | 80
U.S. government securities |  |
Cash equivalents: |  |
Amortized Cost | 77 | 92
Fair Value | 77 | 92
Other |  |
Cash equivalents: |  |
Amortized Cost | 2 | 6
Fair Value | $ 2 | $ 6

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