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Contingent Liabilities and Assets - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Contingent Liabilities And Assets [Abstract]
Contingent assets	$ 199	$ 0

X

- Definition

The amount of the estimated financial effect of possible assets that arise from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more uncertain future events not wholly within control of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
-IssueDate 2022-03-24
-Paragraph 89
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2022-en-r&anchor=para_89&doctype=Standard
-URIDate 2022-03-24

+ Details

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

X

- Definition

Contingent liabilities and assets.

+ References

No definition available.

+ Details

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