Fair Value Measurements, Derivative Instruments and Hedging Activities - Derivatives Qualifying and Designated as Hedging Instruments Recognized in Other Comprehensive Income (Details) - USD ($)	3 Months Ended		6 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016	Nov. 30, 2016
Fuel
Derivative Instruments, Gain (Loss) [Line Items]
Collateral required to be posted	$ 0		$ 0		$ 0
Collateral required to be received	0		0		$ 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	(17,000,000)	$ (4,000,000)	(16,000,000)	$ (17,000,000)
Designated as hedging instruments | Foreign currency zero cost collars – cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Effective portions of derivatives qualifying and designated as hedging instruments recognized in other comprehensive income	27,000,000	9,000,000	35,000,000	19,000,000
Designated as hedging instruments | Interest rate swaps – cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Effective portions of derivatives qualifying and designated as hedging instruments recognized in other comprehensive income	$ 3,000,000	$ 6,000,000	$ 4,000,000	$ 3,000,000