Name:	ifrs-full_DisclosureOfOperatingSegmentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The cash outflow for the purchase of financial instruments. [Refer: Classes of financial instruments [domain]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 16
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_16&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The cash outflow for the purchase of interests in investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

Name:	ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The cash outflow for the purchases of long-term assets that the entity does not separately disclose in the same statement or note, classified as investing activities. [Refer: Assets]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 16
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_16_a&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Cash Outflow For Total Cash Capital Expenditure

No definition available.

Name:	shel_CashOutflowForTotalCashCapitalExpenditure
Namespace Prefix:	shel_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Name:	ifrs-full_SegmentsAxis=shel_IntegratedGasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_SegmentsAxis=shel_UpstreamMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_SegmentsAxis=shel_MarketingSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_SegmentsAxis=shel_ChemicalsAndProductsSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_SegmentsAxis=shel_RenewablesAndEnergySolutionsSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: