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Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risk - Foreign Currency Exchange Risks (Details) | 12 Months Ended
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Nov. 30, 2019 USD ($) | Nov. 30, 2018 USD ($) | Nov. 30, 2017 USD ($)
Fair Value, Measurement Inputs, Disclosure [Line Items] |  |  |
Foreign currency translation adjustment losses | $ 86,000,000 | $ 199,000,000 | $ (590,000,000)
Foreign currency contract commitments | $ 7,300,000,000 |  |
Foreign-currency contracts | Enchanted Princess | Cash flow hedging |  |  |
Fair Value, Measurement Inputs, Disclosure [Line Items] |  |  |
Weighted-Average Floor Rate | 1.04 |  |
Weighted- Average Ceiling Rate | 1.28 |  |
Foreign-currency contracts | Mardi Gras | Cash flow hedging |  |  |
Fair Value, Measurement Inputs, Disclosure [Line Items] |  |  |
Weighted-Average Floor Rate | 1.04 |  |
Weighted- Average Ceiling Rate | 1.28 |  |
Euro-denominated |  |  |
Fair Value, Measurement Inputs, Disclosure [Line Items] |  |  |
Debt | $ 7,500,000,000.0 |  |
Sterling-denominated |  |  |
Fair Value, Measurement Inputs, Disclosure [Line Items] |  |  |
Debt | 854,000,000 |  |
Foreign currency translation adjustment losses | $ 6,000,000 |  |

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