Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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+ References

No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Summary of Long-term Debt and Short-term Borrowings Outstanding (Parenthetical) (Detail)		12 Months Ended
	Aug. 10, 2012	May 31, 2017	May 31, 2016	Apr. 15, 2014
4.55% Senior Notes due April 15, 2026
Debt Instrument [Line Items]
Debt, interest rate		4.55%	4.55%	4.55%
Debt, maturity date		Apr. 15, 2026
4.60% Senior Notes due August 10, 2024
Debt Instrument [Line Items]
Debt, interest rate	4.60%	4.60%	4.60%
Debt, maturity date	Aug. 10, 2024	Aug. 10, 2024
6.50% Senior Notes due April 15, 2020
Debt Instrument [Line Items]
Debt, interest rate		6.50%	6.50%
Debt, maturity date		Apr. 15, 2020