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Taxes - Summary of Effective Income Tax Rate (Parenthetical) (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($)
Pluto PRRT Deferred Tax Asset [Member] |
Disclosure Of Effective Income Tax Rate [Line Items] |
Increase (decrease) in deferred tax asset | $ 1,362

X
- Definition The increase (decrease) in a deferred tax liability (asset). [Refer: Deferred tax liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81&doctype=Standard -URIDate 2022-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Disclosure of effective income tax rate. + References No definition available. + Details
Name: | wds_DisclosureOfEffectiveIncomeTaxRateLineItems
Namespace Prefix: | wds_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | wds_TypeOfTaxAxis=wds_PlutoPRRTDeferredTaxAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |