Acquisitions and Assets Held for Sale - Assets Acquired and Liabilities Assumed as of the Acquisition Date (Details) - USD ($) $ in Millions	Jan. 31, 2022	Dec. 17, 2021	Oct. 31, 2021
Current assets:
Goodwill	$ 3,835.7		$ 2,574.0
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Current assets:
Cash and cash equivalents		$ 58.6
Trade accounts receivable, net		23.3
Inventories		4.0
Prepaid expense and other current assets		29.9
Total current assets		115.8
Property, plant and equipment		25.1
Operating lease right-of-use assets		21.4
Goodwill		1,292.6
Deferred tax assets		15.8
Other assets		0.8
Total assets acquired		2,085.5
Current liabilities:
Accounts payable		12.6
Employee compensation and benefits		12.3
Operating lease liabilities		2.5
Deferred revenue		68.4
Other current liabilities		8.8
Total current liabilities		104.6
Deferred tax liabilities		134.4
Operating lease liabilities		18.8
Deferred revenue		160.9
Other current liabilities		1.1
Total liabilities assumed		419.8
Total purchase price		1,665.7
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Current assets:
Finite-lived intangible assets		472.0
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Current assets:
Finite-lived intangible assets		$ 142.0