Debt, Derivatives and Hedging Activities - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
Aug. 31, 2022	Aug. 31, 2021	May 31, 2022
Debt Instrument [Line Items]
Debt, carrying value	$ 3,007,200,000		$ 2,811,200,000
Debt, fair value	2,990,200,000		2,862,200,000
Issuance of commercial paper	196,000,000	$ 326,000,000
Amortization of interest rate lock agreements - decrease to other comprehensive income	1,500,000	$ 500,000
Notional value	500,000,000		500,000,000
Commercial paper
Debt Instrument [Line Items]
Commercial paper	$ 457,200,000		$ 261,200,000
Weighted average interest rate	2.69%		1.20%
Debt term	120 days		120 days
Revolving credit facility
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity with accordion feature	$ 2,000,000,000
Debt amendment, increase limit (up to)	500,000,000
Revolving credit facility amount outstanding	$ 0		$ 0

Line Of Credit Facility, Accordion Feature, Increase Limit

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- Definition

Other Comprehensive Income (Loss), Amortization Of Interest Rate Lock Agreements, Net Of Tax

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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- Definition

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.

+ References

No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

The cash inflow from borrowing by issuing commercial paper.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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- Definition

Weighted average interest rate of short-term debt outstanding calculated at point in time.

+ References

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