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Other Assets (Details) - Grand Bahama Shipyard Ltd. - USD ($) $ in Millions | 12 Months Ended
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Nov. 30, 2016 | Nov. 30, 2015 | Nov. 30, 2014
Schedule of Equity Method Investments [Line Items] |  |  |
Noncontrolling interest percentage | 40.00% |  |
Services Provided | $ 58 | $ 33 | $ 41

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