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Balance Sheet Accounts and Supplemental Disclosures - Schedule of Other Noncurrent Assets, Net (Detail) (USD $)
In Millions, unless otherwise specified
Nov. 30, 2013
Nov. 30, 2012
Other Noncurrent Assets [Line Items]    
Deferred financing costs $ 18.3 $ 7.0
Recoverable from the U.S. government for conditional asset retirement obligations 15.6 13.8
Grantor trust 11.4 12.1
Other 17.4 18.2
Other noncurrent assets, net 72.7 51.1
UTC [Member]
   
Other Noncurrent Assets [Line Items]    
Indemnification receivable from UTC $ 10.0