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v3.20.2

Exceptional Items - Additional Information (Detail) - USD ($) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Jan. 01, 2018 | Dec. 31, 2017 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Disclosure of exceptional items [line items] |  |  |  |  |
Exceptional items net |  |  | $ 1,305 | $ 818 | $ 2,970
US corporate tax rate |  |  | 30.00% | 30.00% | 30.00%
Taxation (income) charges related to exceptional items |  |  | $ (241) | $ (242) | $ 2,320
Samarco dam failure [member] |  |  |  |  |
Disclosure of exceptional items [line items] |  |  |  |  |
Exceptional items net |  |  | 176 | 1,060 | 650
Taxation (income) charges related to exceptional items |  |  | 0 | $ 0 | 0
US tax reform [member] |  |  |  |  |
Disclosure of exceptional items [line items] |  |  |  |  |
Exceptional items net |  |  |  |  | 2,320
US corporate tax rate | 21.00% | 35.00% |  |  |
Taxation (income) charges related to exceptional items |  |  |  |  | $ 2,320
Cerro Colorado impairment [Member] |  |  |  |  |
Disclosure of exceptional items [line items] |  |  |  |  |
Exceptional items net |  |  | $ 492 |  |
Current environmental licence, Expiry date |  |  | CY2023 |  |

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- Definition The applicable income tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2019-03-27 + Details
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- Details
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