XML 231 R143.htm IDEA: XBRL DOCUMENT v3.21.2

Net Debt - Summary of Net Debt Balance and Gearing Ratio (Parenthetical) (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020
Statement [Line Items]
Net assets	$ 55,605	$ 52,175
Increase (decrease) due to changes in accounting policy required by IFRSs [member]
Statement [Line Items]
Net assets		$ 71

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	bhp_StatementLineItems
Namespace Prefix:	bhp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of assets less the amount of liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 1
-IssueDate 2020-01-01
-Paragraph IG63
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2020-en-r&anchor=para_IG63&doctype=Implementation%20Guidance
-URIDate 2020-01-01

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2020-01-01

+ Details

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

X

- Details

Name:	ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis=ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: