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Impairment of Non-current Assets - Schedule of Impairment of Non-current Assets for Cash Generating Unit by Class of Assets and by Reportable Segment (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets | $ 3,890 | $ 75 |
Total impairment of non-current assets, Property, plant and equipment | 3,833 | 73 |
Total impairment of non-current assets, Goodwill and other intangibles | 57 | 2 |
Net impairment of non-current assets | 3,890 | 75 | $ 515
Property, plant and equipment [Member] |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets, Property, plant and equipment | 3,833 | 73 | $ 515
Net impairment of non-current assets | 3,833 | 73 |
Goodwill and other intangible assets [Member] |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets, Goodwill and other intangibles | 57 | 2 |
Net impairment of non-current assets | 57 | 2 |
Western Australia Nickel [Member] |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets | 3,800 |  |
Total impairment of non-current assets, Property, plant and equipment | 3,744 |  |
Total impairment of non-current assets, Goodwill and other intangibles | 56 |  |
Western Australia Nickel [Member] | Property, plant and equipment [Member] |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets, Property, plant and equipment | 3,744 |  |
Western Australia Nickel [Member] | Goodwill and other intangible assets [Member] |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets, Goodwill and other intangibles | 56 |  |
Other [Member] |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets | 90 | 75 |
Other [Member] | Property, plant and equipment [Member] |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets, Property, plant and equipment | 89 | 73 |
Other [Member] | Goodwill and other intangible assets [Member] |  |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |  |
Total impairment of non-current assets, Goodwill and other intangibles | $ 1 | $ 2 |

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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 impairment loss recognised in profit or loss for intangible assets and goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2023-01-01 -Paragraph 118 -Subparagraph e -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2023-en-r&anchor=para_118_e_iv&doctype=Standard -URIDate 2023-03-23 + Details
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