Financial Instruments - Measured At Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Jan. 31, 2024	Jan. 31, 2023
Long-term
Derivative contract assets, fair value	$ 21.0	$ 14.0
Derivative contract liabilities	(15.0)	(31.0)
Total	1,815.0	1,264.0
Commercial paper
Short-term
Marketable securities, short-term	159.0	42.0
Corporate debt securities
Short-term
Marketable securities, short-term	75.0	44.0
Long-term
Marketable securities, long-term	104.0	45.0
U.S. government securities
Short-term
Marketable securities, short-term	70.0	17.0
Long-term
Marketable securities, long-term	24.0	35.0
Asset backed securities
Short-term
Marketable securities, short-term	28.0	19.0
Long-term
Marketable securities, long-term	59.0	13.0
Agency bonds
Long-term
Marketable securities, long-term	36.0
Other
Short-term
Marketable securities, short-term	22.0	3.0
Long-term
Marketable securities, long-term	11.0	9.0
Mutual funds
Long-term
Long-term other assets, fair value	100.0	86.0
Convertible debt securities
Long-term
Long-term other assets, fair value		2.0
Level 1
Long-term
Derivative contract assets, fair value	0.0	0.0
Derivative contract liabilities	0.0	0.0
Total	793.0	827.0
Level 1 | Commercial paper
Short-term
Marketable securities, short-term	0.0	0.0
Level 1 | Corporate debt securities
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 1 | U.S. government securities
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 1 | Asset backed securities
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 1 | Agency bonds
Long-term
Marketable securities, long-term	0.0
Level 1 | Other
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 1 | Mutual funds
Long-term
Long-term other assets, fair value	100.0	86.0
Level 1 | Convertible debt securities
Long-term
Long-term other assets, fair value		0.0
Level 2
Long-term
Derivative contract assets, fair value	21.0	14.0
Derivative contract liabilities	(15.0)	(31.0)
Total	1,022.0	435.0
Level 2 | Commercial paper
Short-term
Marketable securities, short-term	159.0	42.0
Level 2 | Corporate debt securities
Short-term
Marketable securities, short-term	75.0	44.0
Long-term
Marketable securities, long-term	104.0	45.0
Level 2 | U.S. government securities
Short-term
Marketable securities, short-term	70.0	17.0
Long-term
Marketable securities, long-term	24.0	35.0
Level 2 | Asset backed securities
Short-term
Marketable securities, short-term	28.0	19.0
Long-term
Marketable securities, long-term	59.0	13.0
Level 2 | Agency bonds
Long-term
Marketable securities, long-term	36.0
Level 2 | Other
Short-term
Marketable securities, short-term	22.0	3.0
Long-term
Marketable securities, long-term	11.0	9.0
Level 2 | Mutual funds
Long-term
Long-term other assets, fair value	0.0	0.0
Level 2 | Convertible debt securities
Long-term
Long-term other assets, fair value		0.0
Level 3
Long-term
Derivative contract assets, fair value	0.0	0.0
Derivative contract liabilities	0.0	0.0
Total	0.0	2.0
Level 3 | Commercial paper
Short-term
Marketable securities, short-term	0.0	0.0
Level 3 | Corporate debt securities
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 3 | U.S. government securities
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 3 | Asset backed securities
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 3 | Agency bonds
Long-term
Marketable securities, long-term	0.0
Level 3 | Other
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 3 | Mutual funds
Long-term
Long-term other assets, fair value	0.0	0.0
Level 3 | Convertible debt securities
Long-term
Long-term other assets, fair value		2.0
Money market funds
Cash equivalents
Fair Value	693.0	737.0
Money market funds | Level 1
Cash equivalents
Fair Value	693.0	737.0
Money market funds | Level 2
Cash equivalents
Fair Value	0.0	0.0
Money market funds | Level 3
Cash equivalents
Fair Value	0.0	0.0
Commercial paper
Cash equivalents
Fair Value	250.0	169.0
Commercial paper | Level 1
Cash equivalents
Fair Value	0.0	0.0
Commercial paper | Level 2
Cash equivalents
Fair Value	250.0	169.0
Commercial paper | Level 3
Cash equivalents
Fair Value	0.0	0.0
U.S. government securities
Cash equivalents
Fair Value	92.0	13.0
U.S. government securities | Level 1
Cash equivalents
Fair Value	0.0	0.0
U.S. government securities | Level 2
Cash equivalents
Fair Value	92.0	13.0
U.S. government securities | Level 3
Cash equivalents
Fair Value	0.0	0.0
Certificates of deposit
Cash equivalents
Fair Value	80.0	35.0
Certificates of deposit | Level 1
Cash equivalents
Fair Value	0.0	0.0
Certificates of deposit | Level 2
Cash equivalents
Fair Value	80.0	35.0
Certificates of deposit | Level 3
Cash equivalents
Fair Value	0.0	0.0
Other
Cash equivalents
Fair Value	6.0	12.0
Other | Level 1
Cash equivalents
Fair Value	0.0	4.0
Other | Level 2
Cash equivalents
Fair Value	6.0	8.0
Other | Level 3
Cash equivalents
Fair Value	$ 0.0	$ 0.0