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Segments - Assets by Reportable Segments (Parenthetical) (Detail) $ in Millions | Dec. 31, 2015 USD ($)
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Kevothermal Business [Member] | Operating Segments [Member] | Product Care [Member] |
Segment Reporting Information [Line Items] |
Re-classification of assets | $ 2.3

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- Definition Reclassification of assets. + References No definition available. + Details
Name: | see_ReclassificationOfAssets
Namespace Prefix: | see_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsegmentsAxis=see_KevothermalBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=see_ProductCareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |