Financial Instruments - Measured At Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Oct. 31, 2023	Jan. 31, 2023
Long-term
Derivative contract liabilities	$ (18)	$ (31)
Total	1,632	1,264
Derivative contract assets
Long-term
Derivative contract assets, fair value	27	14
Commercial paper
Short-term
Marketable securities, short-term	207	42
U.S. government securities
Short-term
Marketable securities, short-term	90	17
Long-term
Marketable securities, long-term	23	35
Corporate debt securities
Short-term
Marketable securities, short-term	71	44
Long-term
Marketable securities, long-term	96	45
Asset-backed securities
Short-term
Marketable securities, short-term	32	19
Long-term
Marketable securities, long-term	54	13
Agency discount notes
Short-term
Marketable securities, short-term	11
Other
Short-term
Marketable securities, short-term	17	3
Long-term
Marketable securities, long-term	12	9
Agency mortgage backed securities
Long-term
Marketable securities, long-term	34
Mutual funds
Long-term
Long-term other assets, fair value	90	86
Convertible debt securities
Long-term
Long-term other assets, fair value		2
Money market funds
Cash equivalents
Cash equivalents, fair value	546	737
Commercial paper
Cash equivalents
Cash equivalents, fair value	257	169
Certificates of deposit
Cash equivalents
Cash equivalents, fair value	69	35
Other
Cash equivalents
Cash equivalents, fair value	14	12
U.S. government securities
Cash equivalents
Cash equivalents, fair value		13
Level 1
Long-term
Derivative contract liabilities	0	0
Total	636	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 | U.S. government securities
Short-term
Marketable securities, short-term	0	0
Long-term
Marketable securities, long-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 | Asset-backed securities
Short-term
Marketable securities, short-term	0	0
Long-term
Marketable securities, long-term	0	0
Level 1 | Agency discount notes
Short-term
Marketable securities, short-term	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	90	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	546	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 | Other
Cash equivalents
Cash equivalents, fair value	0	4
Level 1 | U.S. government securities
Cash equivalents
Cash equivalents, fair value		0
Level 2
Long-term
Derivative contract liabilities	(18)	(31)
Total	996	435
Level 2 | Derivative contract assets
Long-term
Derivative contract assets, fair value	27	14
Level 2 | Commercial paper
Short-term
Marketable securities, short-term	207	42
Level 2 | U.S. government securities
Short-term
Marketable securities, short-term	90	17
Long-term
Marketable securities, long-term	23	35
Level 2 | Corporate debt securities
Short-term
Marketable securities, short-term	71	44
Long-term
Marketable securities, long-term	96	45
Level 2 | Asset-backed securities
Short-term
Marketable securities, short-term	32	19
Long-term
Marketable securities, long-term	54	13
Level 2 | Agency discount notes
Short-term
Marketable securities, short-term	11
Level 2 | Other
Short-term
Marketable securities, short-term	17	3
Long-term
Marketable securities, long-term	12	9
Level 2 | Agency mortgage backed securities
Long-term
Marketable securities, long-term	34
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	257	169
Level 2 | Certificates of deposit
Cash equivalents
Cash equivalents, fair value	69	35
Level 2 | Other
Cash equivalents
Cash equivalents, fair value	14	8
Level 2 | U.S. government securities
Cash equivalents
Cash equivalents, fair value		13
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 | U.S. government securities
Short-term
Marketable securities, short-term	0	0
Long-term
Marketable securities, long-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 | Asset-backed securities
Short-term
Marketable securities, short-term	0	0
Long-term
Marketable securities, long-term	0	0
Level 3 | Agency discount notes
Short-term
Marketable securities, short-term	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 | Other
Cash equivalents
Cash equivalents, fair value	$ 0	0
Level 3 | U.S. government securities
Cash equivalents
Cash equivalents, fair value		$ 0