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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 |
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Feb. 28, 2017 | Feb. 29, 2016 | Nov. 30, 2016
Fuel |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Collateral required to be posted | $ 0 |  | $ 0
Collateral required to be received | 0 |  | $ 0
Minimum |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative asset, cash collateral netting threshold, fair value | 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 | 1,000,000 | $ (13,000,000) |
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 | 8,000,000 | 10,000,000 |
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 | $ 2,000,000 | $ (3,000,000) |

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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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