Contingencies (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
May 31, 2016	May 31, 2016
Loss Contingency [Line Items]
LitigationSettlementExpense	$ 11
Multidistrict Independent Contractor Litigation [Member]
Loss Contingency [Line Items]
LitigationSettlementAmount		$ 204
Independent Contractor California [Member]
Loss Contingency [Line Items]
LitigationSettlementAmount		$ 228

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.

No definition available.

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