Fair Value Measurements, Derivative Instruments and Hedging Activities - Derivatives Qualifying and Designated as Hedging Instruments Recognized in Other Comprehensive Income (Detail)	3 Months Ended		6 Months Ended
	May 31, 2016 USD ($) counterparty	May 31, 2015 USD ($)	May 31, 2016 USD ($) counterparty	May 31, 2015 USD ($)	Nov. 30, 2015 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Fuel Derivative, Counterparty | counterparty	1		1
Fuel
Derivative Instruments, Gain (Loss) [Line Items]
Collateral posted	$ 50,000,000		$ 50,000,000		$ 25,000,000
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	(4,000,000)	$ 6,000,000	(17,000,000)	$ 46,000,000
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	9,000,000	(10,000,000)	19,000,000	(48,000,000)
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	$ 6,000,000	$ 5,000,000	$ 3,000,000	$ 3,000,000