Financial Instruments - Measured At Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Apr. 30, 2023	Jan. 31, 2023
Long-term
Derivative contract liabilities	$ (17.0)	$ (31.0)
Total	1,433.0	1,264.0
Foreign Exchange Contract
Long-term
Derivative contract assets, fair value	14.0	14.0
Strategic investments derivative asset
Long-term
Derivative contract assets, fair value	1.0
Commercial paper
Short-term
Marketable securities, short-term	120.0	42.0
Corporate debt securities
Short-term
Marketable securities, short-term	40.0	44.0
Long-term
Marketable securities, long-term	74.0	45.0
U.S. government securities
Short-term
Marketable securities, short-term	33.0	17.0
Long-term
Marketable securities, long-term	55.0	35.0
Asset-backed securities
Short-term
Marketable securities, short-term	21.0	19.0
Long-term
Marketable securities, long-term	22.0	13.0
Other
Short-term
Marketable securities, short-term	8.0	3.0
Long-term
Marketable securities, long-term	15.0	9.0
Agency mortgage backed securities
Long-term
Marketable securities, long-term	19.0
Mutual funds
Long-term
Long-term other assets, fair value	90.0	86.0
Convertible debt securities
Long-term
Long-term other assets, fair value	2.0	2.0
Money market funds
Cash equivalents
Cash Equivalents, Fair Value	576.0	737.0
Commercial paper
Cash equivalents
Cash Equivalents, Fair Value	203.0	169.0
Certificates of deposit
Cash equivalents
Cash Equivalents, Fair Value	137.0	35.0
Other
Cash equivalents
Cash Equivalents, Fair Value	20.0	12.0
U.S. government securities
Cash equivalents
Cash Equivalents, Fair Value		13.0
Level 1
Long-term
Derivative contract liabilities	0.0	0.0
Total	666.0	827.0
Level 1 \| Foreign Exchange Contract
Long-term
Derivative contract assets, fair value	0.0	0.0
Level 1 \| Strategic investments derivative asset
Long-term
Derivative contract assets, fair value	0.0
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 \| Other
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 1 \| Agency mortgage backed securities
Long-term
Marketable securities, long-term	0.0
Level 1 \| Mutual funds
Long-term
Long-term other assets, fair value	90.0	86.0
Level 1 \| Convertible debt securities
Long-term
Long-term other assets, fair value	0.0	0.0
Level 1 \| Money market funds
Cash equivalents
Cash Equivalents, Fair Value	576.0	737.0
Level 1 \| Commercial paper
Cash equivalents
Cash Equivalents, Fair Value	0.0	0.0
Level 1 \| Certificates of deposit
Cash equivalents
Cash Equivalents, Fair Value	0.0	0.0
Level 1 \| Other
Cash equivalents
Cash Equivalents, Fair Value	0.0	4.0
Level 1 \| U.S. government securities
Cash equivalents
Cash Equivalents, Fair Value		0.0
Level 2
Long-term
Derivative contract liabilities	(17.0)	(31.0)
Total	764.0	435.0
Level 2 \| Foreign Exchange Contract
Long-term
Derivative contract assets, fair value	14.0	14.0
Level 2 \| Strategic investments derivative asset
Long-term
Derivative contract assets, fair value	0.0
Level 2 \| Commercial paper
Short-term
Marketable securities, short-term	120.0	42.0
Level 2 \| Corporate debt securities
Short-term
Marketable securities, short-term	40.0	44.0
Long-term
Marketable securities, long-term	74.0	45.0
Level 2 \| U.S. government securities
Short-term
Marketable securities, short-term	33.0	17.0
Long-term
Marketable securities, long-term	55.0	35.0
Level 2 \| Asset-backed securities
Short-term
Marketable securities, short-term	21.0	19.0
Long-term
Marketable securities, long-term	22.0	13.0
Level 2 \| Other
Short-term
Marketable securities, short-term	8.0	3.0
Long-term
Marketable securities, long-term	15.0	9.0
Level 2 \| Agency mortgage backed securities
Long-term
Marketable securities, long-term	19.0
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	0.0
Level 2 \| Money market funds
Cash equivalents
Cash Equivalents, Fair Value	0.0	0.0
Level 2 \| Commercial paper
Cash equivalents
Cash Equivalents, Fair Value	203.0	169.0
Level 2 \| Certificates of deposit
Cash equivalents
Cash Equivalents, Fair Value	137.0	35.0
Level 2 \| Other
Cash equivalents
Cash Equivalents, Fair Value	20.0	8.0
Level 2 \| U.S. government securities
Cash equivalents
Cash Equivalents, Fair Value		13.0
Level 3
Long-term
Derivative contract liabilities	0.0	0.0
Total	3.0	2.0
Level 3 \| Foreign Exchange Contract
Long-term
Derivative contract assets, fair value	0.0	0.0
Level 3 \| Strategic investments derivative asset
Long-term
Derivative contract assets, fair value	1.0
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 \| Other
Short-term
Marketable securities, short-term	0.0	0.0
Long-term
Marketable securities, long-term	0.0	0.0
Level 3 \| Agency mortgage backed securities
Long-term
Marketable securities, long-term	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	2.0
Level 3 \| Money market funds
Cash equivalents
Cash Equivalents, Fair Value	0.0	0.0
Level 3 \| Commercial paper
Cash equivalents
Cash Equivalents, Fair Value	0.0	0.0
Level 3 \| Certificates of deposit
Cash equivalents
Cash Equivalents, Fair Value	0.0	0.0
Level 3 \| Other
Cash equivalents
Cash Equivalents, Fair Value	$ 0.0	0.0
Level 3 \| U.S. government securities
Cash equivalents
Cash Equivalents, Fair Value		$ 0.0

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