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Financial Instruments - Schedule of Measured At Fair Value on Recurring Basis (Details) - USD ($)
$ in Millions
Apr. 30, 2024
Jan. 31, 2024
Long-term    
Derivative contract liabilities $ (14) $ (15)
Total 1,633 1,815
Derivative contract assets    
Long-term    
Derivative contract assets, fair value 19 21
Commercial paper    
Short-term    
Fair Value 141 159
Agency bonds    
Long-term    
Fair Value   36
U.S. government securities    
Cash equivalents:    
Fair Value 12  
Short-term    
Fair Value 54 70
Long-term    
Fair Value 24 24
Corporate debt securities    
Cash equivalents:    
Fair Value 10  
Short-term    
Fair Value 73 75
Long-term    
Fair Value 107 104
Asset-backed securities    
Short-term    
Fair Value 25 28
Long-term    
Fair Value 62 59
Agency mortgage backed securities    
Long-term    
Fair Value 38 36
Other    
Short-term    
Fair Value 15 22
Long-term    
Fair Value 7 11
Mutual funds    
Long-term    
Long-term other assets, fair value 107 100
Money market funds    
Cash equivalents:    
Fair Value 592 693
Commercial paper    
Cash equivalents:    
Fair Value 278 250
Certificates of deposit    
Cash equivalents:    
Fair Value 83 80
Other    
Cash equivalents:    
Fair Value   6
U.S. government securities    
Cash equivalents:    
Fair Value 12 92
Level 1    
Long-term    
Derivative contract liabilities 0 0
Total 699 793
Level 1 | Derivative contract assets    
Long-term    
Derivative contract assets, fair value 0 0
Level 1 | Commercial paper    
Short-term    
Fair Value 0 0
Level 1 | Agency bonds    
Long-term    
Fair Value   0
Level 1 | U.S. government securities    
Cash equivalents:    
Fair Value 0  
Short-term    
Fair Value 0 0
Long-term    
Fair Value 0 0
Level 1 | Corporate debt securities    
Cash equivalents:    
Fair Value 0  
Short-term    
Fair Value 0 0
Long-term    
Fair Value 0 0
Level 1 | Asset-backed securities    
Short-term    
Fair Value 0 0
Long-term    
Fair Value 0 0
Level 1 | Agency mortgage backed securities    
Long-term    
Fair Value 0  
Level 1 | Other    
Short-term    
Fair Value 0 0
Long-term    
Fair Value 0 0
Level 1 | Mutual funds    
Long-term    
Long-term other assets, fair value 107 100
Level 1 | Money market funds    
Cash equivalents:    
Fair Value 592 693
Level 1 | Commercial paper    
Cash equivalents:    
Fair Value 0 0
Level 1 | Certificates of deposit    
Cash equivalents:    
Fair Value 0 0
Level 1 | Other    
Cash equivalents:    
Fair Value   0
Level 1 | U.S. government securities    
Cash equivalents:    
Fair Value   0
Level 2    
Long-term    
Derivative contract liabilities (14) (15)
Total 934 1,022
Level 2 | Derivative contract assets    
Long-term    
Derivative contract assets, fair value 19 21
Level 2 | Commercial paper    
Short-term    
Fair Value 141 159
Level 2 | Agency bonds    
Long-term    
Fair Value   36
Level 2 | U.S. government securities    
Cash equivalents:    
Fair Value 12  
Short-term    
Fair Value 54 70
Long-term    
Fair Value 24 24
Level 2 | Corporate debt securities    
Cash equivalents:    
Fair Value 10  
Short-term    
Fair Value 73 75
Long-term    
Fair Value 107 104
Level 2 | Asset-backed securities    
Short-term    
Fair Value 25 28
Long-term    
Fair Value 62 59
Level 2 | Agency mortgage backed securities    
Long-term    
Fair Value 38  
Level 2 | Other    
Short-term    
Fair Value 15 22
Long-term    
Fair Value 7 11
Level 2 | Mutual funds    
Long-term    
Long-term other assets, fair value 0 0
Level 2 | Money market funds    
Cash equivalents:    
Fair Value 0 0
Level 2 | Commercial paper    
Cash equivalents:    
Fair Value 278 250
Level 2 | Certificates of deposit    
Cash equivalents:    
Fair Value 83 80
Level 2 | Other    
Cash equivalents:    
Fair Value   6
Level 2 | U.S. government securities    
Cash equivalents:    
Fair Value   92
Level 3    
Long-term    
Derivative contract liabilities 0 0
Total 0 0
Level 3 | Derivative contract assets    
Long-term    
Derivative contract assets, fair value 0 0
Level 3 | Commercial paper    
Short-term    
Fair Value 0 0
Level 3 | Agency bonds    
Long-term    
Fair Value   0
Level 3 | U.S. government securities    
Cash equivalents:    
Fair Value 0  
Short-term    
Fair Value 0 0
Long-term    
Fair Value 0 0
Level 3 | Corporate debt securities    
Cash equivalents:    
Fair Value 0  
Short-term    
Fair Value 0 0
Long-term    
Fair Value 0 0
Level 3 | Asset-backed securities    
Short-term    
Fair Value 0 0
Long-term    
Fair Value 0 0
Level 3 | Agency mortgage backed securities    
Long-term    
Fair Value 0  
Level 3 | Other    
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
Level 3 | Money market funds    
Cash equivalents:    
Fair Value 0 0
Level 3 | Commercial paper    
Cash equivalents:    
Fair Value 0 0
Level 3 | Certificates of deposit    
Cash equivalents:    
Fair Value $ 0 0
Level 3 | Other    
Cash equivalents:    
Fair Value   0
Level 3 | U.S. government securities    
Cash equivalents:    
Fair Value   $ 0