XML 221 R133.htm IDEA: XBRL DOCUMENT v3.21.2

Share Capital - Additional Information (Detail) $ / shares in Units, $ in Millions			12 Months Ended
	Mar. 17, 2021 USD ($)	Sep. 16, 2020 USD ($)	Jun. 30, 2021 $ / shares shares	Jun. 30, 2021 £ / shares shares	Jun. 30, 2020 $ / shares	Jun. 30, 2020 £ / shares	Jun. 30, 2019 $ / shares	Jun. 30, 2019 £ / shares
Disclosure of classes of share capital [line items]
Ordinary shares, per cent of total number of shares			99.99%	99.99%
BHP Group Limited [member]
Disclosure of classes of share capital [line items]
Shares, par value | $ / shares			$ 0.50
BHP Group Plc [member]
Disclosure of classes of share capital [line items]
Shares, par value | $ / shares			$ 0.50
Special Voting share of no par value [member] | BHP Group Limited [member]
Disclosure of classes of share capital [line items]
Number of shares issued			1	1
Movement in shares			0
Special Voting share of US$0.50 par value [member] | BHP Group Plc [member]
Disclosure of classes of share capital [line items]
Shares, par value | $ / shares			$ 0.50		$ 0.50		$ 0.50
Number of shares issued			1	1
Movement in shares			0
5.5% Preference shares [member]
Disclosure of classes of share capital [line items]
Shares, par value | £ / shares				£ 1		£ 1		£ 1
5.5% Preference shares [member] | BHP Group Plc [member]
Disclosure of classes of share capital [line items]
Shares, par value | £ / shares				£ 1		£ 1		£ 1
Movement in shares			0
DLC Dividend share [member] | BHP Group Limited [member]
Disclosure of classes of share capital [line items]
Shares, par value | $ / shares			$ 10
Dividends paid under DLC dividend share arrangements | $	$ 1,610	$ 1,915

X

- Definition

Dividends paid under DLC dividend share arrangements.

+ References

No definition available.

+ Details

Name:	bhp_DividendsPaidUnderDLCDividendShareArrangements
Namespace Prefix:	bhp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage of ordinary shares in total number of shares.

+ References

No definition available.

+ Details

Name:	bhp_PercentageOfOrdinarySharesInTotalNumberOfShares
Namespace Prefix:	bhp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

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

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfClassesOfShareCapitalLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The increase (decrease) in the number of shares outstanding. [Refer: Number of shares outstanding]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 79
-Subparagraph a
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_iv&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_IncreaseDecreaseInNumberOfSharesOutstanding
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of shares issued by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 106
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_NumberOfSharesIssued
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The nominal value per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 79
-Subparagraph a
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_iii&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_ParValuePerShare
Namespace Prefix:	ifrs-full_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	dei_LegalEntityAxis=bhp_BHPGroupLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=bhp_BHPGroupPlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=bhp_SpecialVotingShareOfNoParValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=bhp_SpecialVotingShareWithParValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_PreferenceSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=bhp_DLCDividendShareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: