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Divestiture - Additional Information (Detail) (North American Foam Trays and Absorbent Pads [Member], USD $) In Millions, unless otherwise specified | 3 Months Ended | 0 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014 | Apr. 01, 2015
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |
Disposal date | Apr. 01, 2015 |  |
Net sales | $ 53 us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue | $ 53 us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue |
pre-tax income | 10 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss | 9 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss |
Subsequent Event [Member] |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |
Gross proceeds from sale of business |  |  | $ 82 us-gaap_ProceedsFromDivestitureOfBusinesses / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = see_NorthAmericanFoamTraysAndAbsorbentPadsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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- Definition Date the entity disposed of a business or a group of assets, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Amount of operating income or loss attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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