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Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | $ 1,574 | $ 1,625 |
Additions | 23 | 98 |
Amortisation for the year | (93) | (118) |
Impairments for the year | (52) |  | $ (14)
Transfers and other movements | (15) | (31) |
At the end of the financial year | 1,437 | 1,574 | 1,625
Previously stated [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | 1,574 | 675 |
At the end of the financial year |  | 1,574 | 675
Increase (decrease) due to changes in accounting policy required by IFRSs [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year |  | 950 |
At the end of the financial year |  |  | 950
Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | 2,777 |  |
At the end of the financial year | 2,703 | 2,777 |
Accumulated depreciation, amortisation and impairment [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | (1,203) |  |
At the end of the financial year | (1,266) | (1,203) |
Goodwill [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | 1,197 | 1,197 |
At the end of the financial year | 1,197 | 1,197 | 1,197
Goodwill [member] | Previously stated [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | 1,197 | 247 |
At the end of the financial year |  | 1,197 | 247
Goodwill [member] | Increase (decrease) due to changes in accounting policy required by IFRSs [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year |  | 950 |
At the end of the financial year |  |  | 950
Goodwill [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | 1,197 |  |
At the end of the financial year | 1,197 | 1,197 |
Other intangibles [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | 377 | 428 |
Additions | 23 | 98 |
Amortisation for the year | (93) | (118) |
Impairments for the year | (52) |  |
Transfers and other movements | (15) | (31) |
At the end of the financial year | 240 | 377 | 428
Other intangibles [member] | Previously stated [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | 377 | 428 |
At the end of the financial year |  | 377 | $ 428
Other intangibles [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | 1,580 |  |
At the end of the financial year | 1,506 | 1,580 |
Other intangibles [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
At the beginning of the financial year | (1,203) |  |
At the end of the financial year | $ (1,266) | $ (1,203) |

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