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Contingencies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
Aug. 31, 2014
Nov. 30, 2013
Contingencies [Line Items]    
Required standby letter of credit if Carnival Corporation's credit rating falls below BBB      
Lease Out And Lease Back Type Transactions
   
Contingencies [Line Items]    
Estimated contingent obligations 394  
Estimated termination payment in the event that Carnival Corporation were to default on its contingent obligations and assuming performance by all other participants 31  
Required standby letter of credit if Carnival Corporation's credit rating falls below BBB $ 35