Short-Term Debt and Credit Arrangements (Details 2)	9 Months Ended		12 Months Ended
	Feb. 28, 2014		May 31, 2013
Requirement
Minimum average adjusted TIER over the six most recent fiscal quarters	1.025	[1]
Minimum adjusted TIER for the most recent fiscal year	1.05	[1],[2]
Maximum ratio of adjusted senior debt to total equity	10.00	[1]
Actual
Minimum average adjusted TIER over the six most recent fiscal quarters	1.28	[1]	1.27	[1]
Minimum adjusted TIER for the most recent fiscal year	1.29	[1],[2]	1.29	[1],[2]
Maximum ratio of adjusted senior debt to total equity	5.92	[1]	5.85	[1]

[1] In addition to the adjustments made to the leverage ratio set forth in the Non-GAAP Financial Measures section, senior debt excludes guarantees to member systems that have certain investment-grade ratings from Moody’s Investors Service and Standard & Poor’s Corporation. The TIER and debt-to-equity calculations include the adjustments set forth in the Non-GAAP Financial Measures section and exclude the results of operations for CAH.

[2] We must meet this requirement to retire patronage capital.