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Business Segment Information - Additional Information (Detail) (Nestle Food Company) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Nestle Food Company |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Percentage of net sales | 11.50% | 11.30% | 10.60%

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- Definition Percentage of Total Revenue + References No definition available. + Details
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Namespace Prefix: | slgn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SegmentReportingRevenueReconcilingItemLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration