Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	May 31, 2020	Nov. 30, 2019	May 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents at fair value	$ 185.0	$ 155.4	$ 139.4
Long-term debt	4,202.5	3,723.5	4,065.0
Long-term debt, fair value	4,459.1	3,859.0	4,131.8
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	4,080.6	3,437.5	3,345.4
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	378.5	421.5	786.4
Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Cash and cash equivalents		155.4	139.4
Insurance contracts	111.1	121.7	111.8
Bonds and other long-term investments	7.3	2.7	6.5
Assets, Fair Value Disclosure	371.7	307.2	283.8
Liabilities [Abstract]
Total	14.3	3.6	9.3
Fair Value, Measurements, Recurring [Member] \| Level 1
Assets [Abstract]
Cash and cash equivalents	185.0	155.4	139.4
Insurance contracts	0.0	0.0	0.0
Bonds and other long-term investments	7.3	2.7	6.5
Interest Rate Derivative Assets, at Fair Value	0.0
Foreign currency derivatives	0.0	0.0	0.0
Assets, Fair Value Disclosure	192.3	158.1	145.9
Liabilities [Abstract]
Foreign currency derivatives	0.0	0.0	0.0
Interest rate derivatives	0.0
Total	0.0	0.0	0.0
Fair Value, Measurements, Recurring [Member] \| Level 2
Assets [Abstract]
Cash and cash equivalents	0.0	0.0	0.0
Insurance contracts	111.1	121.7	111.8
Bonds and other long-term investments	0.0	0.0	0.0
Interest rate contracts, Fair Value		20.9
Interest Rate Derivative Assets, at Fair Value	47.1		12.1
Foreign currency derivatives	10.3	3.3	6.9
Assets, Fair Value Disclosure	179.4	149.1	137.9
Liabilities [Abstract]
Foreign currency derivatives	2.6	3.6	1.6
Cross currency contracts	11.7		7.7
Total	14.3	3.6	9.3
Assets [Member] \| Fair Value, Measurements, Recurring [Member] \| Level 2
Liabilities [Abstract]
Cross currency contracts	10.9	3.2
Interest rate contracts \| Other current assets / Other long-term assets
Assets [Abstract]
Interest rate contracts, Fair Value			12.1
Interest rate contracts \| Other accrued liabilities
Assets [Abstract]
Interest rate contracts, Fair Value	0.0
Interest rate contracts \| Other accrued liabilities \| Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Interest rate contracts, Fair Value		0.0	0.0
Foreign exchange contracts \| Other current assets / Other long-term assets \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net	10.3	3.3	6.9
Foreign exchange contracts \| Other accrued liabilities \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net	2.6	3.6	1.6
Cross currency contracts \| Assets [Member] \| Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Cross currency contracts	10.9	3.2	7.1
Cross currency contracts \| Liability [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net		$ 0.0	7.7
Liabilities [Abstract]
Cross currency contracts	$ 11.7		$ 7.7

Cross Currency Contracts, Fair Value

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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Fair value as of the balance sheet date of all derivatives designated as foreign currency fair value hedging instruments.

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Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

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Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Fair value of financial and nonfinancial obligations.

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Fair value amount of life settlement contracts accounted for under the fair value method.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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