Number of New Hire Equity Awards

No definition available.

Name:	see_NumberOfNewHireEquityAwards
Namespace Prefix:	see_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Share Based Compensation Arrangement By Share Based Payment Award Cumulative Stockholder Return Rate, Percent

+ References

No definition available.

+ Details

Name:	see_ShareBasedCompensationArrangementByShareBasedPaymentAwardCumulativeStockholderReturnRatePercent
Namespace Prefix:	see_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of vesting of award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AwardTypeAxis=see_PerformanceVestingNewHireAwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=see_ChiefOperatingOfficerAndChiefExecutiveOfficerDesignateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Stockholders' Equity - Chief Operating Officer (COO) and Chief Executive Officer-Designate 2017 New Hire Equity Awards (Details)			1 Months Ended
	Dec. 10, 2020 shares	Sep. 18, 2017 award $ / shares shares	Oct. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of new-hire equity awards granted \| award		2
Performance-vesting New Hire Awards \| Chief Operating Officer and Chief Executive Officer-Designate
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of units granted (in shares) \| shares	35,000	70,000
Performance-vesting New Hire Awards \| Chief Operating Officer and Chief Executive Officer-Designate \| Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting rights, percentage			0.00%
Performance-vesting New Hire Awards \| Chief Operating Officer and Chief Executive Officer-Designate \| Tranche One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cumulative stockholder return rate, percent		33.00%
Performance-vesting New Hire Awards \| Chief Operating Officer and Chief Executive Officer-Designate \| Tranche One \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share price (in usd per share) \| $ / shares		$ 60.00
Performance-vesting New Hire Awards \| Chief Operating Officer and Chief Executive Officer-Designate \| Tranche Two \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share price (in usd per share) \| $ / shares		$ 75.00
Restricted Stock Units \| Chief Operating Officer and Chief Executive Officer-Designate
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of units granted (in shares) \| shares	35,000