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Provisions - Summary Of Information About Provisions (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Restoration [member]
Disclosure of detailed information about provisions [line items]
Increase (decrease) through change in discount rate, other provisions	$ 978
Increase decrease In accounting estimate other provisions	262
Provision used, other provisions	858
Onerous contracts [member]
Disclosure of detailed information about provisions [line items]
Increase (decrease) through change in discount rate, other provisions	245
Provision used, other provisions	$ 29

X

- Definition

The increase (decrease) in other provisions resulting from a change in discount rate. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
-IssueDate 2022-03-24
-Paragraph 84
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2022-en-r&anchor=para_84_e&doctype=Standard
-URIDate 2022-03-24

+ Details

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

X

- Definition

The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
-IssueDate 2022-03-24
-Paragraph 84
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2022-en-r&anchor=para_84_c&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_ProvisionUsedOtherProvisions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Disclosure of detailed information about provisions.

+ References

No definition available.

+ Details

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

X

- Definition

Increase decrease in accounting estimate other provisions.

+ References

No definition available.

+ Details

Name:	wds_IncreaseDecreaseInAccountingEstimateOtherProvisions
Namespace Prefix:	wds_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=ifrs-full_OnerousContractsProvisionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: