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Restructuring (Details) (USD $)
In Millions, unless otherwise specified
 6 Months Ended 6 Months Ended
May 31, 2014
Operational Excellence Program [Member]
May 31, 2014
Severance [Member]
Operational Excellence Program [Member]
May 31, 2014
Other Costs [Member]
Operational Excellence Program [Member]
May 31, 2014
Minimum [Member]
Employees
May 31, 2014
Minimum [Member]
Operational Excellence Program [Member]
May 31, 2014
Maximum [Member]
Employees
May 31, 2014
Maximum [Member]
Operational Excellence Program [Member]
May 31, 2014
Facility Improvements [Member]
Operational Excellence Program [Member]
Restructuring Cost and Reserve [Line Items]                
Expected future saving         $ 15   $ 18  
Expected restructuring costs 4.7             5.4
Expected number of positions eliminated       80,000   100,000    
Restructuring costs incurred to date 1.4 0.6 0.1          
Accelerated depreciation due to restructuring $ 0.7