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Cash and Cash Equivalents - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Cash and cash equivalents [line items] |  |
Restricted cash and cash equivalents | $ 12 | $ 0

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- Definition The amount of current restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_CurrentRestrictedCashAndCashEquivalents
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cash and cash equivalents Line Item. + References No definition available. + Details
Name: | wds_CashAndCashEquivalentsLineItems
Namespace Prefix: | wds_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration