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Components of Pension Expense of Defined Benefit Plans (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
May 31, 2012
May 31, 2011
May 31, 2012
May 31, 2011
United States
       
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 4.4 $ 3.8 $ 8.7 $ 7.6
Interest costs 8.0 7.6 15.9 15.1
Expected return on plan assets (9.5) (8.5) (18.9) (17.0)
Recognized net actuarial loss 4.5 3.3 9.1 6.6
Total pension expense 7.4 6.2 14.8 12.3
International
       
Defined Benefit Plan Disclosure [Line Items]        
Service cost 1.7 1.6 3.4 3.1
Interest costs 3.3 3.2 6.4 6.3
Expected return on plan assets (4.1) (4.0) (8.1) (7.9)
Amortization of prior service costs 0.1 0.1 0.2 0.2
Recognized net actuarial loss 0.9 0.6 1.8 1.2
Total pension expense $ 1.9 $ 1.5 $ 3.7 $ 2.9