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Accounts Receivable Securitization Programs - Additional Information (Detail)	3 Months Ended					3 Months Ended	9 Months Ended		3 Months Ended		3 Months Ended
	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2014 USD ($)	Mar. 31, 2015 Europe [Member] EUR (€)	Dec. 31, 2014 Europe [Member] EUR (€)	Mar. 31, 2015 U.S. Accounts Receivable Securitization Program [Member] USD ($) Bank	Sep. 30, 2014 U.S. Accounts Receivable Securitization Program [Member]	Sep. 30, 2014 U.S. Accounts Receivable Securitization Program [Member] Maximum [Member] USD ($)	Mar. 31, 2015 U.S. Accounts Receivable Securitization Program [Member] Minimum [Member] USD ($)	Sep. 30, 2014 U.S. Accounts Receivable Securitization Program [Member] Minimum [Member] USD ($)	Mar. 31, 2015 European Accounts Receivable Securitization Program [Member] USD ($) Bank	Mar. 31, 2015 European Accounts Receivable Securitization Program [Member] EUR (€) Bank	Mar. 31, 2015 European Accounts Receivable Securitization Program [Member] U.S.program USD ($)	Dec. 31, 2014 European Accounts Receivable Securitization Program [Member] U.S.program USD ($)	Feb. 28, 2015 European Accounts Receivable Securitization Program [Member] Maximum [Member] EUR (€)
Qualitative And Quantitative Information Transferors Continuing Involvement [Line Items]
Number of banks involved in sale of fractional ownership interest of accounts receivable						2see_NumberOfBanksInvolvedInSaleOfFractionOfAccountsReceivable / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_UnitedStatesAccountsReceivableSecuritizationProgramMember					2see_NumberOfBanksInvolvedInSaleOfFractionOfAccountsReceivable / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember	2see_NumberOfBanksInvolvedInSaleOfFractionOfAccountsReceivable / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember
Maximum purchase limit for receivable interests under accounts receivable securitization program						$ 100,000,000see_PurchaseLimitForReceivableInterestsUnderAccountsReceivableSecuritizationProgram / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_UnitedStatesAccountsReceivableSecuritizationProgramMember					$ 120,000,000see_PurchaseLimitForReceivableInterestsUnderAccountsReceivableSecuritizationProgram / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember	€ 110,000,000see_PurchaseLimitForReceivableInterestsUnderAccountsReceivableSecuritizationProgram / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember			€ 110,000,000see_PurchaseLimitForReceivableInterestsUnderAccountsReceivableSecuritizationProgram / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Level of eligible assets available under accounts receivable securitization program						less than $100 million
Amount available for accounts receivable securitization program						75,000,000us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_UnitedStatesAccountsReceivableSecuritizationProgramMember		125,000,000us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_UnitedStatesAccountsReceivableSecuritizationProgramMember / us-gaap_RangeAxis = us-gaap_MaximumMember		100,000,000us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_UnitedStatesAccountsReceivableSecuritizationProgramMember / us-gaap_RangeAxis = us-gaap_MinimumMember	108,000,000us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember	99,000,000us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember
Accounts receivable expiration date							2014-09				2015-02	2015-02
Amount utilized under accounts receivable securitization program			36,000,000see_AmountOfBorrowingOutstandingUnderAccountsReceivableSecuritizationProgram	0see_AmountOfBorrowingOutstandingUnderAccountsReceivableSecuritizationProgram / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	0see_AmountOfBorrowingOutstandingUnderAccountsReceivableSecuritizationProgram / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember								0see_AmountOfBorrowingOutstandingUnderAccountsReceivableSecuritizationProgram / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember / us-gaap_StatementGeographicalAxis = country_US	36,000,000see_AmountOfBorrowingOutstandingUnderAccountsReceivableSecuritizationProgram / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_EuropeanAccountsReceivableSecuritizationProgramMember / us-gaap_StatementGeographicalAxis = country_US
Interest expenses	$ 58,500,000us-gaap_InterestExpense	$ 78,500,000us-gaap_InterestExpense							$ 1,000,000us-gaap_InterestExpense / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = see_UnitedStatesAccountsReceivableSecuritizationProgramMember / us-gaap_RangeAxis = us-gaap_MinimumMember

X

- Definition

Amount of borrowing outstanding under accounts receivable securitization program.

+ References

No definition available.

+ Details

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X

- Definition

Expiration of securitization program.

+ References

No definition available.

+ Details

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X

- Definition

Level of eligible assets available under accounts receivable securitization program.

+ References

No definition available.

+ Details

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X

- Definition

Number of banks involved in sale of fraction of accounts receivable.

+ References

No definition available.

+ Details

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X

- Definition

Purchase limit for receivable interests under accounts receivable securitization program.

+ References

No definition available.

+ Details

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X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.9)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 9

-Article 9

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- Details

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X

- Definition

Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that continue to be recognized in the statement of financial position. Includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=13989330&loc=d3e107314-111719

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