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v3.23.2

Service Revenue (Summary of Changes in Deferred Costs to Obtain and Fulfill Contracts) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
May 31, 2023 | May 31, 2022 | May 31, 2021
Capitalized Contract Cost [Line Items] |  |  |
Amortization | $ 219.1 | $ 202.1 | $ 191.4
Costs To Fulfill Contracts [Member] |  |  |
Capitalized Contract Cost [Line Items] |  |  |
Balance, beginning of period | 72.3 | 69.3 |
Capitalization of costs | 28.9 | 28.0 |
Amortization | (25.9) | (25.0) |
Balance, end of period | 75.3 | 72.3 | 69.3
Costs To Obtain Contracts [Member] |  |  |
Capitalized Contract Cost [Line Items] |  |  |
Balance, beginning of period | 550.2 | 488.2 |
Capitalization of costs | 240.5 | 239.1 |
Amortization | (193.2) | (177.1) |
Balance, end of period | $ 597.5 | $ 550.2 | $ 488.2

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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126905575&loc=SL49131252-203054 + Details
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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126905575&loc=SL49131252-203054 + Details
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