Fair Value of Financial Instruments	9 Months Ended
Feb. 28, 2018
Investments, All Other Investments [Abstract]
Fair Value of Financial Instruments	Note 9. Fair Value of Financial Instruments The following methods and assumptions are used in estimating the fair-value disclosures for financial instruments: Debt: The carrying amount of notes with floating rates of interest approximate fair value. Fixed rate notes are valued based on cash flows using estimated rates of comparable notes. The carrying amounts reported in the balance sheet approximate fair value.

The entire disclosure for financial instruments. This disclosure includes, but is not limited to, fair value measurements of short and long term marketable securities, international currencies forward contracts, and auction rate securities. Financial instruments may include hedging and non-hedging currency exchange instruments, derivatives, securitizations and securities available for sale at fair value. Also included are investment results, realized and unrealized gains and losses as well as impairments and risk management disclosures.

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