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Business combinations - Additional Information (Detail) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
May 02, 2024 USD ($) | Jun. 30, 2024 USD ($) Integer | Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | May 02, 2023 USD ($)
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Number of Business Acquired | Integer |  | 0 |  |  |
Impairment loss |  | $ 3,890 | $ 75 | $ 515 |
OZ Minerals Limited [member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  |  | 100.00%
Cash transferred |  | 5,868 |  |  | $ 5,900
Goodwill recognised as of acquisition date |  | 194 |  |  |
Impairment loss |  | $ 1,094 |  |  |
OZ Minerals Limited [member] | Goodwill [member] |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Measurement period adjustments recognised for particular assets, liabilities, non-controlling interests or items of consideration | $ 2 |  |  |  |

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- Definition The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2023-01-01 -Paragraph B64 -Subparagraph f -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B -URIDate 2023-03-23 + Details
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- Definition The amount recognised as of the business combination's acquisition date for goodwill. [Refer: Goodwill; Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 3 -IssueDate 2023-01-01 -Paragraph IE72 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_IE72&doctype=Illustrative%20Examples -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 3 -IssueDate 2023-01-01 -Paragraph B64 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64&doctype=Appendix&subtype=B -URIDate 2023-03-23 + Details
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- Definition The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 130 -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_130_d_ii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 130 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_130_b&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of measurement period adjustments recognised for particular assets, liabilities, non-controlling interests or items of consideration if the initial accounting for a business combination is incomplete. The measurement period is the period after the acquisition date during which the acquirer may adjust the provisional amounts recognised for a business combination. [Refer: Non-controlling interests; Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2023-01-01 -Paragraph B67 -Subparagraph a -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B67_a_iii&doctype=Appendix&subtype=B -URIDate 2023-03-23 + Details
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- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2023-01-01 -Paragraph B64 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B -URIDate 2023-03-23 + Details
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