XML 102 R91.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Postretirement Benefit Plans - Weighted-Average Assumptions Used To Determine Benefit Obligations (Detail) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
United States [Member] |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |
Discount rate | 5.20% | 5.50%
United Kingdom [Member] |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |
Discount rate | 4.80% | 5.00%

X
- Definition Pension plans postretirement and other employee benefits. + References No definition available. + Details
Name: | scl_PensionPlansPostretirementAndOtherEmployeeBenefitsLineItems
Namespace Prefix: | scl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |