XML 145 R105.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Fair Values of Pension Plan Assets, by Asset Category and Level of Fair Values (Parenthetical) (Detail) (U.S. Pension Plans [Member], USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013
U.S. Pension Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Minimum percentage of invested in real estate funds | 90.00%
Maximum amount invested in alternative investments | $ 0.5

X
- Definition Maximum amount invested in alternative investments. + References No definition available. + Details
Name: | see_MaximumAmountInvestedInAlternativeInvestments
Namespace Prefix: | see_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Minimum percentage of invested in real estate funds. + References No definition available. + Details
Name: | see_MinimumPercentageOfInvestedInRealEstateFunds
Namespace Prefix: | see_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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