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v3.24.2.u1

Segment Reporting - Additional Information (Detail) | 12 Months Ended
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Jun. 30, 2024 Segment
Disclosure of operating segments [line items] |
Number of reportable segment | 3

X
- Definition Number of reportable segments. + References No definition available. + Details
Name: | bhp_NumberOfReportableSegments1
Namespace Prefix: | bhp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfOperatingSegmentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration