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Basis of Presentation - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Aug. 31, 2012 | Aug. 31, 2011 | Aug. 31, 2012 | Aug. 31, 2011
Basis of Presentation [Line Items] |  |  |  |
Adjustment amounts on gross basis in revenues and expenses | $ 126 | $ 108 | $ 364 | $ 311

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- Definition Change in classification of port costs that vary with guest head counts to a gross presentation from a net presentation. + References No definition available. + Details
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