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Fair Value Measurements, Derivative Instruments and Hedging Activities - Derivatives Qualifying and Designated as Hedging Instruments Recognized in Other Comprehensive Income (Detail) - USD ($)
3 Months Ended 6 Months Ended
May. 31, 2015
May. 31, 2014
May. 31, 2015
May. 31, 2014
Nov. 30, 2014
Fuel          
Derivative Instruments, Gain (Loss) [Line Items]          
Collateral posted $ 11,000,000   $ 11,000,000    
Collateral required to be received 0   0   $ 0
Collateral required to be posted         $ 0
Minimum          
Derivative Instruments, Gain (Loss) [Line Items]          
Derivative asset, cash collateral netting threshold, fair value 100,000,000   100,000,000    
Designated as hedging instruments | Net investment hedges          
Derivative Instruments, Gain (Loss) [Line Items]          
Effective portions of derivatives qualifying and designated as hedging instruments recognized in other comprehensive income 6,000,000 $ (1,000,000) 46,000,000 $ 0  
Designated as hedging instruments | Foreign currency zero cost collars          
Derivative Instruments, Gain (Loss) [Line Items]          
Effective portions of derivatives qualifying and designated as hedging instruments recognized in other comprehensive income (10,000,000) (3,000,000) (48,000,000) (6,000,000)  
Designated as hedging instruments | Interest Rate Swaps          
Derivative Instruments, Gain (Loss) [Line Items]          
Effective portions of derivatives qualifying and designated as hedging instruments recognized in other comprehensive income $ 5,000,000 $ (10,000,000) $ 3,000,000 $ (14,000,000)