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Shareholders' Equity - Additional Information (Details) (USD $)
12 Months Ended
Nov. 30, 2014
Nov. 30, 2013
Nov. 30, 2012
Jan. 31, 2013
Nov. 15, 2012
Oct. 31, 2008
Jan. 22, 2015
Stockholders Equity Note [Line Items]              
Share repurchase program, aggregate value authorized for repurchase $ 1,000,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1            
Share repurchased, Value 0us-gaap_PaymentsForRepurchaseOfCommonStock 138,000,000us-gaap_PaymentsForRepurchaseOfCommonStock 90,000,000us-gaap_PaymentsForRepurchaseOfCommonStock        
Stock repurchase program, remaining authorized amount 975,000,000us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1            
Sales of treasury stock 0us-gaap_ProceedsFromSaleOfTreasuryStock 35,000,000us-gaap_ProceedsFromSaleOfTreasuryStock 0us-gaap_ProceedsFromSaleOfTreasuryStock        
Unrecognized pension expenses reclassified out of accumulated other comprehensive (loss) income 18,000,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax            
Carnival Corp              
Stockholders Equity Note [Line Items]              
Preferred stock, authorized 40,000,000us-gaap_PreferredStockSharesAuthorized
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
           
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
0us-gaap_PreferredStockSharesIssued
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
         
Repurchase of Common Stock (in shares)   900,000us-gaap_TreasuryStockSharesAcquired
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
         
Share repurchase program additional authorized shares for repurchase       32,800,000ccl_AdditionalSharesAuthorizedForRepurchase
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
     
Common stock reserved for issuance pursuant to employee benefit and dividend reinvestment plans 16,000,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
           
Dividends payable, per share (USD per share)         $ 0.50us-gaap_DividendsPayableAmountPerShare
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
   
Dividends payable         400,000,000us-gaap_DividendsPayableCurrent
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
   
2012 quarterly dividend per share (USD per share)     $ 0.25ccl_QuarterlyCashDividendOnCommonStock
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
       
CARNIVAL PLC              
Stockholders Equity Note [Line Items]              
Share repurchase program additional authorized shares for repurchase           19,200,000ccl_AdditionalSharesAuthorizedForRepurchase
/ dei_LegalEntityAxis
= ccl_CarnivalPublicLimitedCompanyMember
 
Share repuchase program, number of shares authorized to be repurchased 21,500,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
/ dei_LegalEntityAxis
= ccl_CarnivalPublicLimitedCompanyMember
           
Stock Issued During Period, Shares, Treasury Stock Reissued   900,000us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued
/ dei_LegalEntityAxis
= ccl_CarnivalPublicLimitedCompanyMember
         
Sales of treasury stock   35,000,000us-gaap_ProceedsFromSaleOfTreasuryStock
/ dei_LegalEntityAxis
= ccl_CarnivalPublicLimitedCompanyMember
         
Common stock reserved for issuance pursuant to employee benefit plans 8,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ dei_LegalEntityAxis
= ccl_CarnivalPublicLimitedCompanyMember
           
Subsequent Event | Carnival Corp              
Stockholders Equity Note [Line Items]              
Stock repurchase program, remaining authorized shares             32,000,000us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Subsequent Event | CARNIVAL PLC              
Stockholders Equity Note [Line Items]              
Stock repurchase program, remaining authorized shares             18,100,000us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
/ dei_LegalEntityAxis
= ccl_CarnivalPublicLimitedCompanyMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Repurchase Agreements [Member] | Carnival Corp              
Stockholders Equity Note [Line Items]              
Repurchase of Common Stock (in shares) 0us-gaap_TreasuryStockSharesAcquired
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
/ us-gaap_ShareRepurchaseProgramAxis
= us-gaap_RepurchaseAgreementsMember
2,800,000us-gaap_TreasuryStockSharesAcquired
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
/ us-gaap_ShareRepurchaseProgramAxis
= us-gaap_RepurchaseAgreementsMember
2,600,000us-gaap_TreasuryStockSharesAcquired
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
/ us-gaap_ShareRepurchaseProgramAxis
= us-gaap_RepurchaseAgreementsMember
       
Share repurchased, Value   103,000,000us-gaap_PaymentsForRepurchaseOfCommonStock
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
/ us-gaap_ShareRepurchaseProgramAxis
= us-gaap_RepurchaseAgreementsMember
90,000,000us-gaap_PaymentsForRepurchaseOfCommonStock
/ dei_LegalEntityAxis
= ccl_CarnivalCorpMember
/ us-gaap_ShareRepurchaseProgramAxis
= us-gaap_RepurchaseAgreementsMember
       
Payroll and Related Expenses              
Stockholders Equity Note [Line Items]              
Unrecognized pension expenses reclassified out of accumulated other comprehensive (loss) income 12,000,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
/ us-gaap_IncomeStatementLocationAxis
= ccl_PayrollandRelatedExpensesMember
           
General and Administrative Expense              
Stockholders Equity Note [Line Items]              
Unrecognized pension expenses reclassified out of accumulated other comprehensive (loss) income $ 6,000,000us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember