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Investments In Affiliates (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Nov. 30, 2014
Nov. 30, 2013
Nov. 30, 2012
Investments in and Advances to Affiliates [Line Items]      
Results of unconsolidated affiliates, percentage 100.00%mkc_ResultsOfUnconsolidatedAffiliatesPercentage    
McCormick de Mexico, S.A. de C.V. [Member]      
Investments in and Advances to Affiliates [Line Items]      
Percentage ownership interest in unconsolidated affiliates businesses 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= mkc_MccormickDeMexicoSDeCVMember
   
Unconsolidated Affiliates [Member]      
Investments in and Advances to Affiliates [Line Items]      
Undistributed earnings of unconsolidated affiliates $ 96.7us-gaap_UndistributedEarnings
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityOwnedSubsidiaryUnconsolidatedMember
   
Royalty income $ 18.7us-gaap_RoyaltyRevenue
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityOwnedSubsidiaryUnconsolidatedMember
$ 18.4us-gaap_RoyaltyRevenue
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityOwnedSubsidiaryUnconsolidatedMember
$ 17.1us-gaap_RoyaltyRevenue
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityOwnedSubsidiaryUnconsolidatedMember
Percent of income from unconsolidated operations from joint ventures 91.00%mkc_IncomeFromUnconsolidatedOperationsOfEquityMethodInvestmentsPercentOfIncomeFromUnconsolidatedOperations
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityOwnedSubsidiaryUnconsolidatedMember
78.00%mkc_IncomeFromUnconsolidatedOperationsOfEquityMethodInvestmentsPercentOfIncomeFromUnconsolidatedOperations
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityOwnedSubsidiaryUnconsolidatedMember
82.00%mkc_IncomeFromUnconsolidatedOperationsOfEquityMethodInvestmentsPercentOfIncomeFromUnconsolidatedOperations
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityOwnedSubsidiaryUnconsolidatedMember