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PENSION AND POSTRETIREMENT BENEFITS (Expected to be Recognized as Components) (Details) $ in Millions | 12 Months Ended
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May. 31, 2015 USD ($)
Pension Benefits |
Accumulated other comprehensive income (loss) |
Prior service cost (benefit) | $ 2.7
Other Benefits |
Accumulated other comprehensive income (loss) |
Prior service cost (benefit) | $ (8.1)

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- Definition Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. + References No definition available. + Details
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