The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard
-URIDate 2023-03-23

+ Details

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

- Definition

The gains (losses) on financial liabilities at fair value through profit or loss. [Refer: Financial liabilities at fair value through profit or loss]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 20
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_20_a_i&doctype=Standard
-URIDate 2023-03-23

+ Details

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

- Definition

The amount of a hedging instrument, recognised as an asset. [Refer: Hedging instruments [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 24A
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_24A_a&doctype=Standard
-URIDate 2023-03-23

+ Details

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

- Definition

Discount rate pre tax.

+ References

No definition available.

+ Details

Name:	wds_DiscountRatePreTax
Namespace Prefix:	wds_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Inflation rate.

+ References

No definition available.

+ Details

Name:	wds_InflationRate
Namespace Prefix:	wds_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Oil and gas sale price.

+ References

No definition available.

+ Details

Name:	wds_OilAndGasSalePrice
Namespace Prefix:	wds_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Other financial assets and liabilities.

+ References

No definition available.

+ Details

Name:	wds_OtherFinancialAssetsAndLiabilitiesLineItems
Namespace Prefix:	wds_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of hedged pricing risk.

+ References

No definition available.

+ Details

Name:	wds_PercentageOfHedgedPricingRisk
Namespace Prefix:	wds_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of oil delivered.

+ References

No definition available.

+ Details

Name:	wds_PercentageOfOilDelivered
Namespace Prefix:	wds_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	wds_YearOfEstimatedPriceAxis=wds_TwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	wds_YearOfEstimatedPriceAxis=wds_TwoThousandTwentyFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	wds_YearOfEstimatedPriceAxis=wds_TwoThousandTwentyFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	ifrs-full_ClassesOfLiabilitiesAxis=wds_EmbeddedDerivativesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialLiabilitiesAxis=ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	wds_AgreementAxis=wds_LongTermSaleAndGasPurchaseContractWithPerdmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_UnobservableInputsAxis=ifrs-full_DiscountRateMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_UnobservableInputsAxis=wds_InflationRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Other Financial Assets and Liabilities - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($) bbl	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Other financial assets and liabilities [line items]
Percentage of oil delivered	49.00%
Hedging instrument, assets	$ 29.3
2026 [member]
Other financial assets and liabilities [line items]
Percentage of hedged pricing risk	9.00%
2025 [member]
Other financial assets and liabilities [line items]
Percentage of hedged pricing risk	48.00%
Hedging instrument, assets	$ 15.0
2024 [member]
Other financial assets and liabilities [line items]
Percentage of hedged pricing risk	70.00%
Oil Swaps [Member]
Other financial assets and liabilities [line items]
Oil and gas sale price \| bbl	75.6
Oil Swaps [Member] \| 2025 [member]
Other financial assets and liabilities [line items]
Oil and gas sale price \| bbl	81.2
Embedded Derivatives [Member] \| Financial liabilities at fair value through profit or loss, category [member] \| Long Term Sale And Gas Purchase Contract With Perdman [Member]
Other financial assets and liabilities [line items]
Gain loss on financial liabilities at fair value through profit or loss	$ 153.0	$ 52.0
Derivative financial liabilities	$ 188.0		$ 35.0
Discount rate, measurement input [member] \| Top of range [member] \| Embedded Derivatives [Member] \| Financial liabilities at fair value through profit or loss, category [member] \| Long Term Sale And Gas Purchase Contract With Perdman [Member]
Other financial assets and liabilities [line items]
Discount rate pre tax	6.95
Discount rate, measurement input [member] \| Bottom of range [member] \| Embedded Derivatives [Member] \| Financial liabilities at fair value through profit or loss, category [member] \| Long Term Sale And Gas Purchase Contract With Perdman [Member]
Other financial assets and liabilities [line items]
Discount rate pre tax	5.8
Inflation Rate [Member] \| Embedded Derivatives [Member] \| Financial liabilities at fair value through profit or loss, category [member] \| Long Term Sale And Gas Purchase Contract With Perdman [Member]
Other financial assets and liabilities [line items]
Inflation rate	2.50%