Long-Term Debt and Derivatives (Tables)

12 Months Ended

May 31, 2014

Debt Disclosure [Abstract]

Schedule of Debt

(In thousands)	2014		2013
Unsecured term notes due through 2036 at an average rate of 4.6%	$	1,300,980	$	1,309,166
Less: amounts due within one year	503		8,187
	$	1,300,477	$	1,300,979