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Goodwill and Identifiable Intangible Assets - Summary of Percentage by Which Estimated Fair Value Exceeds Carrying Value (Detail)
Dec. 31, 2014
Food Care - Packaging Solutions [Member]  
Goodwill [Line Items]  
Percentage of estimated fair value exceeding carrying value 243.00%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_StatementBusinessSegmentsAxis
= see_FoodCarePackagingSolutionsMember
Food Care - Hygiene Solutions [Member]  
Goodwill [Line Items]  
Percentage of estimated fair value exceeding carrying value 282.00%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_StatementBusinessSegmentsAxis
= see_FoodCareHygieneSolutionsMember
Diversey Care [Member]  
Goodwill [Line Items]  
Percentage of estimated fair value exceeding carrying value 44.00%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_StatementBusinessSegmentsAxis
= see_DiverseyCareMember
Product Care [Member]  
Goodwill [Line Items]  
Percentage of estimated fair value exceeding carrying value 92.00%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_StatementBusinessSegmentsAxis
= see_ProductCareMember
Medical Applications [Member]  
Goodwill [Line Items]  
Percentage of estimated fair value exceeding carrying value 788.00%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_StatementBusinessSegmentsAxis
= see_MedicalApplicationsMember