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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 |  |

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