XML 106 R69.htm IDEA: XBRL DOCUMENT v2.4.1.9
Pensions and Postretirement Benefits Target and Actual Allocations (Details)
 12 Months Ended
Nov. 30, 2014
Fixed Income Funds [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]  
Defined Benefit Plan, Target Allocation Percentage .75
Defined Benefit Plan, Actual Plan Asset Allocations 76.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_FixedIncomeFundsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Fixed Income Funds [Member] | Foreign Pension Plans, Defined Benefit [Member]  
Defined Benefit Plan, Target Allocation Percentage 0.45
Defined Benefit Plan, Actual Plan Asset Allocations 43.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_FixedIncomeFundsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember
Equity Funds [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]  
Defined Benefit Plan, Target Allocation Percentage .25
Defined Benefit Plan, Actual Plan Asset Allocations 24.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_EquityFundsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Equity Funds [Member] | Foreign Pension Plans, Defined Benefit [Member]  
Defined Benefit Plan, Target Allocation Percentage 0.55
Defined Benefit Plan, Actual Plan Asset Allocations 50.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_EquityFundsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember
other plan funds [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]  
Defined Benefit Plan, Target Allocation Percentage 0
Defined Benefit Plan, Actual Plan Asset Allocations 0.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= ihs_OtherPlanFundsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
other plan funds [Member] | Foreign Pension Plans, Defined Benefit [Member]  
Defined Benefit Plan, Target Allocation Percentage 0
Defined Benefit Plan, Actual Plan Asset Allocations 7.00%us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= ihs_OtherPlanFundsMember
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember