Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Derivatives Qualifying and Designated as Hedging Instruments Recognized in Other Comprehensive Income (Details) - USD ($)	3 Months Ended		6 Months Ended
	May 31, 2018	May 31, 2017	May 31, 2018	May 31, 2017	Nov. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets	$ 6,000,000		$ 6,000,000		$ 15,000,000
Derivative liabilities	59,000,000		59,000,000		161,000,000
Interest rate swaps – cash flow hedges | Cash flow hedging
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swaps designated as cash flow hedges	429,000,000		429,000,000		479,000,000
Fuel
Derivative Instruments, Gain (Loss) [Line Items]
Collateral required to be posted	0		0		0
Collateral required to be received	0		0		0
Designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets	6,000,000		6,000,000		15,000,000
Derivative liabilities	46,000,000		46,000,000		57,000,000
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	16,000,000	$ (17,000,000)	10,000,000	$ (16,000,000)
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	(11,000,000)	27,000,000	(10,000,000)	35,000,000
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	0	$ 3,000,000	4,000,000	$ 4,000,000
Designated as hedging instruments | Currency swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities	316,000,000		316,000,000		324,000,000
Not designated as hedging instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities	13,000,000		13,000,000		104,000,000
Prepaid expenses and other | Designated as hedging instruments | Net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets	4,000,000		4,000,000		3,000,000
Prepaid expenses and other | Designated as hedging instruments | Foreign currency zero cost collars – cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative assets	2,000,000		2,000,000		12,000,000
Accrued liabilities and other | Designated as hedging instruments | Net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities	10,000,000		10,000,000		13,000,000
Accrued liabilities and other | Designated as hedging instruments | Interest rate swaps – cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities	9,000,000		9,000,000		10,000,000
Accrued liabilities and other | Not designated as hedging instrument | Fuel
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities	13,000,000		13,000,000		95,000,000
Other long-term liabilities | Designated as hedging instruments | Net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities	14,000,000		14,000,000		17,000,000
Other long-term liabilities | Designated as hedging instruments | Interest rate swaps – cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities	13,000,000		13,000,000		17,000,000
Other long-term liabilities | Not designated as hedging instrument | Fuel
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities					$ 9,000,000
Minimum
Derivative Instruments, Gain (Loss) [Line Items]
Derivative asset, cash collateral netting threshold, fair value	$ 100,000,000		$ 100,000,000