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Contingencies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Nov. 30, 2014
ship
Nov. 30, 2013
Contingencies [Line Items]    
LILO transactions, number of ships with contingent obligations 2ccl_LeaseOutandLeaseBackTypeTransactionsNumberofShipswithContingentObligations  
Required standby letter of credit if Carnival Corporation's credit rating falls below BBB or, alternatively, provide mortgages for this aggregate amount on these two ships      
Lease Out And Lease Back Type Transactions    
Contingencies [Line Items]    
Estimated contingent obligations 397ccl_ContingentObligations
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= ccl_LeaseOutAndLeaseBackTypeTransactionsMember
 
Estimated termination payment in the event that Carnival Corporation were to default on its contingent obligations and assuming performance by all other participants 31us-gaap_LossContingencyRangeOfPossibleLossMaximum
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= ccl_LeaseOutAndLeaseBackTypeTransactionsMember
 
Required standby letter of credit if Carnival Corporation's credit rating falls below BBB or, alternatively, provide mortgages for this aggregate amount on these two ships $ 36us-gaap_CommitmentsAndContingencies
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= ccl_LeaseOutAndLeaseBackTypeTransactionsMember