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