Fair Value Measurements, Derivative Instruments and Hedging Activities - Estimated Fair Values of Derivative Financial Instruments and Location on Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	Feb. 28, 2015	Nov. 30, 2014
Derivatives, Fair Value [Line Items]
Derivative assets	$ 19	$ 14
Derivative liabilities	392	278
Designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative liabilities	52	49
Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative liabilities	340	229
Net investment hedges | Designated as hedging instruments | Prepaid Expenses and Other
Derivatives, Fair Value [Line Items]
Derivative assets	10	6
Net investment hedges | Designated as hedging instruments | Other Assets – Long-term
Derivatives, Fair Value [Line Items]
Derivative assets	8	6
Interest Rate Swaps | Designated as hedging instruments | Prepaid Expenses and Other
Derivatives, Fair Value [Line Items]
Derivative assets	1	1
Interest Rate Swaps | Designated as hedging instruments | Other Assets – Long-term
Derivatives, Fair Value [Line Items]
Derivative assets		1
Interest Rate Swaps | Designated as hedging instruments | Accrued Liabilities And Other
Derivatives, Fair Value [Line Items]
Derivative liabilities	12	13
Interest Rate Swaps | Designated as hedging instruments | Other Long-term Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	34	35
Foreign currency zero cost collars | Designated as hedging instruments | Accrued Liabilities And Other
Derivatives, Fair Value [Line Items]
Derivative liabilities		1
Foreign currency zero cost collars | Designated as hedging instruments | Other Long-term Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	6
Fuel | Not Designated as Hedging Instruments | Accrued Liabilities And Other
Derivatives, Fair Value [Line Items]
Derivative liabilities	132	90
Fuel | Not Designated as Hedging Instruments | Other Long-term Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	208	139
Foreign Currency Forward | Designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative liabilities		403
Foreign Currency Forward | Designated as hedging instruments | Accrued Liabilities And Other
Derivatives, Fair Value [Line Items]
Derivative liabilities	652
Interest Rate Swaps | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Interest rate cash flow hedge asset at fair value	662	750
Interest Rate Swaps | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Interest rate fair value hedge asset at fair value	$ 500	$ 500