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Pension Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Feb. 28, 2013 | Nov. 30, 2012 | May 31, 2012
Pension Benefits, U.S. Plans |  |  |
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items] |  |  |
Contribution to retirement plans in current fiscal year | $ 24.5 | $ 24.5 | $ 29.9
Reduction in contribution to retirement plans in current fiscal year | 5.4 | 5.4 |
Pension Benefits, Non-U.S. Plans |  |  |
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items] |  |  |
Contribution to retirement plans in current fiscal year |  |  | $ 8.3

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- Definition Defined Contribution Plan Increase Decrease + References No definition available. + Details
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- Details
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- Definition The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan in the current remaining fiscal period. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. + References No definition available. + Details
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