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Leases - Summary of Lease Payments Captured in Lease Receivables (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Leases [Abstract] |  |
Short-Term (12 months or less) | $ 9.1 | $ 8.5
Long-Term | 37.0 | 33.3
Lease receivables | $ 46.1 | $ 41.8
Sales-type and operating lease revenue , percentage of net trade sales (less than) | 1.00% | 1.00%

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- Definition Sales-type and Operating Lease Revenue , Percentage of Net Sales + References No definition available. + Details
Name: | see_SalesTypeAndOperatingLeaseRevenuePercentageOfNetSales
Namespace Prefix: | see_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Sales-Type Lease, Lease Receivable, Current + References No definition available. + Details
Name: | see_SalesTypeLeaseLeaseReceivableCurrent
Namespace Prefix: | see_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Sales-type Lease, Lease Receivable, Noncurrent + References No definition available. + Details
Name: | see_SalesTypeLeaseLeaseReceivableNoncurrent
Namespace Prefix: | see_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term guaranteed by lessee or other third party unrelated to lessor, from sales-type lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-6 + Details
Name: | us-gaap_SalesTypeLeaseLeaseReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant