Closure and Rehabilitation Provisions - Summary of Closure and Rehabilitation Provisions (Detail) - USD ($)
$ in Millions |
12 Months Ended |
Jun. 30, 2021 |
Jun. 30, 2020 |
| Disclosure of other provisions [line items] |
|
|
| Current |
$ 3,696
|
$ 2,810
|
| Non-current |
13,799
|
11,185
|
| Closure and rehabilitation provisions [member] |
|
|
| Disclosure of other provisions [line items] |
|
|
| At the beginning of the financial year |
8,810
|
6,977
|
| Increases to existing and new provisions |
564
|
731
|
| Exchange translation |
76
|
(19)
|
| Released during the year |
(157)
|
(43)
|
| Amortisation of discounting impacting net finance costs |
380
|
356
|
| Utilisation |
(321)
|
(258)
|
| Exchange variations impacting foreign currency translation reserve |
3
|
(1)
|
| Acquisition of subsidiaries and operations |
179
|
|
| Divestment and demerger of subsidiaries and operations |
(81)
|
|
| At the end of the financial year |
11,910
|
8,810
|
| Current |
591
|
373
|
| Non-current |
11,319
|
8,437
|
| Closure and rehabilitation provisions [member] | Operating sites [member] |
|
|
| Disclosure of other provisions [line items] |
|
|
| At the beginning of the financial year |
6,636
|
|
| Change in estimate |
1,974
|
1,255
|
| Exchange translation |
483
|
(188)
|
| At the end of the financial year |
9,279
|
6,636
|
| Closure and rehabilitation provisions [member] | Closed sites [member] |
|
|
| Disclosure of other provisions [line items] |
|
|
| At the beginning of the financial year |
2,174
|
|
| At the end of the financial year |
$ 2,631
|
$ 2,174
|