Disclosure of detailed information about expenses and other income.

No definition available.

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Namespace Prefix:	bhp_
Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

Percentage of investment sold.

+ References

No definition available.

+ Details

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Namespace Prefix:	bhp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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- Definition

The aggregate cash flows arising from losing control of subsidiaries or other businesses, classified as investing activities. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 39
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_39&doctype=Standard
-URIDate 2022-03-24

+ Details

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

- Definition

The cash inflow representing dividends received from investments that are accounted for using the equity method, classified as investing activities. [Refer: Investments accounted for using equity method; Dividends received]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 16
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_16&doctype=Standard
-URIDate 2022-03-24

+ Details

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Data Type:	xbrli:monetaryItemType
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- Details

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Period Type:

Expenses and Other Income - Summary of Expenses and Other Income (Parenthetical) (Detail) - USD ($) $ in Millions		12 Months Ended
	Jan. 11, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure of Detailed Information About Expenses and Other Income [Line Items]
Dividends received from investments accounted for using equity method, classified as investing activities		$ 328
Carbonesdel Cerrejon Limited Liability Corporation [Member]
Disclosure of Detailed Information About Expenses and Other Income [Line Items]
Dividends received from investments accounted for using equity method, classified as investing activities			$ 238
Completion proceeds			$ 50
Percentage of investment sold	33.33%