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

The amount of financial assets that the entity has pledged as collateral for liabilities or contingent liabilities, including amounts that have been reclassified in accordance with paragraph 3.2.23(a) of IFRS 9. [Refer: Classes of contingent liabilities [domain]; Financial assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 14
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_14_a&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The gains (losses) recognised in profit or loss for the entity's own equity instruments measured at fair value that are attributable to the change in unrealised gains or losses relating to those instruments held at the end of the reporting period. [Refer: At fair value [member]; Classes of entity's own equity instruments [domain]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2024-01-01
-Paragraph 93
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_f&doctype=Standard
-URIDate 2024-03-27

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

The amount of a hedging instrument, recognised as a liability. [Refer: Hedging instruments [domain]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 24A
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_24A_a&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_HedgingInstrumentLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Average Exposures To Risk Due to A Fifty Percent Increase Or Decrease In Derivative Contracts

No definition available.

Name:	shel_AverageExposuresToRiskDueToAFiftyPercentIncreaseOrDecreaseInDerivativeContracts
Namespace Prefix:	shel_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Carrying amount of collateral.

No definition available.

Name:	shel_CarryingAmountOfCollateral
Namespace Prefix:	shel_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Gain (Loss) Due to A Fifty Percent Increase Or Decrease In Derivative Contracts

No definition available.

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

Increase decrease in interest rate.

No definition available.

Name:	shel_IncreaseDecreaseInInterestRate
Namespace Prefix:	shel_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

Increase (decrease) income before taxation of one percentage in interest rates.

No definition available.

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

Net gains (losses) on derivative contracts excluding realised commodity contracts, before tax.

No definition available.

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

Percentage of foreign exchange risk revenue.

No definition available.

Name:	shel_PercentageOfForeignExchangeRiskRevenue
Namespace Prefix:	shel_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

Value at risk statistical percentage.

No definition available.

Name:	shel_ValueAtRiskStatisticalPercentage
Namespace Prefix:	shel_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

Name:	ifrs-full_TypesOfRisksAxis=ifrs-full_CommodityPriceRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfHedgesAxis=ifrs-full_CashFlowHedgesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfRisksAxis=ifrs-full_CurrencyRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_HedgingInstrumentsAxis=shel_ForwardForeignExchangeContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfHedgesAxis=ifrs-full_FairValueHedgesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_HedgingInstrumentsAxis=shel_InterestRateAndCurrencySwapContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfHedgesAxis=ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfFinancialLiabilitiesAxis=shel_TradePayablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfFinancialAssetsAxis=ifrs-full_TradeReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfFinancialAssetsAxis=shel_GuaranteesAndLettersOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: