Leases - Summary of Movements in Right of Use Assets (Detail) - USD ($)
$ in Millions |
12 Months Ended |
Jun. 30, 2021 |
Jun. 30, 2020 |
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
$ 3,047
|
$ 492
|
| Assets recognised on adoption of IFRS 16 |
|
2,154
|
| Additions |
1,252
|
436
|
| Remeasurements of index-linked freight contracts |
(59)
|
733
|
| Depreciation expensed during the period |
(781)
|
(656)
|
| Depreciation classified as exploration |
(19)
|
(34)
|
| Impairments |
(32)
|
(24)
|
| Transfers and other movements |
(58)
|
(54)
|
| At the end of the financial year |
3,350
|
3,047
|
| Gross carrying amount [member] |
|
|
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
4,153
|
|
| At the end of the financial year |
5,290
|
4,153
|
| Accumulated depreciation, amortisation and impairment [member] |
|
|
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
(1,106)
|
|
| At the end of the financial year |
(1,940)
|
(1,106)
|
| Land and buildings [member] |
|
|
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
689
|
|
| Assets recognised on adoption of IFRS 16 |
|
754
|
| Additions |
25
|
104
|
| Depreciation expensed during the period |
(111)
|
(113)
|
| Impairments |
(30)
|
(2)
|
| Transfers and other movements |
65
|
(54)
|
| At the end of the financial year |
638
|
689
|
| Land and buildings [member] | Gross carrying amount [member] |
|
|
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
804
|
|
| At the end of the financial year |
897
|
804
|
| Land and buildings [member] | Accumulated depreciation, amortisation and impairment [member] |
|
|
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
(115)
|
|
| At the end of the financial year |
(259)
|
(115)
|
| Plant and equipment [member] |
|
|
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
2,358
|
492
|
| Assets recognised on adoption of IFRS 16 |
|
1,400
|
| Additions |
1,227
|
332
|
| Remeasurements of index-linked freight contracts |
(59)
|
733
|
| Depreciation expensed during the period |
(670)
|
(543)
|
| Depreciation classified as exploration |
(19)
|
(34)
|
| Impairments |
(2)
|
(22)
|
| Transfers and other movements |
(123)
|
|
| At the end of the financial year |
2,712
|
2,358
|
| Plant and equipment [member] | Gross carrying amount [member] |
|
|
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
3,349
|
|
| At the end of the financial year |
4,393
|
3,349
|
| Plant and equipment [member] | Accumulated depreciation, amortisation and impairment [member] |
|
|
| Disclosure of quantitative information about right-of-use assets [line items] |
|
|
| At the beginning of the financial year |
(991)
|
|
| At the end of the financial year |
$ (1,681)
|
$ (991)
|