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Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Reconciliation of Changes in Carrying Amounts of Goodwill (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Aug. 31, 2020 USD ($) | May 31, 2020 USD ($) cruise_ship | Feb. 29, 2020 USD ($) cruise_ship | Aug. 31, 2019 USD ($) | Aug. 31, 2020 USD ($) | Aug. 31, 2019 USD ($)
Goodwill [Roll Forward] |  |  |  |  |  |
At November 30, 2019 |  |  | $ 2,912 |  | $ 2,912 |
Impairment charges | $ 0 |  |  | $ 0 | (2,096) | $ 0
Foreign currency translation adjustment |  |  |  |  | (10) |
At August 31, 2020 | 807 |  |  |  | 807 |
NAA Segment |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Number of reporting units impaired | cruise_ship |  |  | 2 |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |
At November 30, 2019 |  |  | $ 1,898 |  | 1,898 |
Impairment charges |  |  | (731) |  | (1,319) |
Foreign currency translation adjustment |  |  |  |  | 0 |
At August 31, 2020 | 579 |  |  |  | 579 |
EA Segment |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Number of reporting units impaired | cruise_ship |  | 2 |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |
At November 30, 2019 |  |  | $ 1,014 |  | 1,014 |
Impairment charges |  | $ (1,300) |  |  | (777) |
Foreign currency translation adjustment |  |  |  |  | (10) |
At August 31, 2020 | $ 228 |  |  |  | $ 228 |

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