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Segment Reporting - Summary of Geographical Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Disclosure of geographical areas [line items] |  |  |
Revenue | $ 60,817 | $ 42,931 | $ 44,288
Non-current assets | 82,234 | 84,262 |
Restated balance [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Non-current assets |  |  | 78,438
Unallocated assets [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Non-current assets | 3,522 | 6,210 | 5,067
Australia [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 2,951 | 2,232 | 2,568
Non-current assets | 48,612 | 48,236 |
Australia [member] | Restated balance [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Non-current assets |  |  | 45,963
Europe [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 1,050 | 1,156 | 1,875
China [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 39,727 | 26,576 | 24,274
Japan [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 4,808 | 3,904 | 4,193
India [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 2,189 | 1,475 | 2,479
South Korea [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 3,436 | 2,666 | 2,550
Rest of Asia [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 3,603 | 2,583 | 2,940
North America [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 2,432 | 1,827 | 2,442
Non-current assets | 9,701 | 9,682 | 8,633
South America [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 426 | 315 | 662
Non-current assets | 18,548 | 18,179 | 18,404
Rest of world [member] |  |  |
Disclosure of geographical areas [line items] |  |  |
Revenue | 195 | 197 | 305
Non-current assets | $ 1,851 | $ 1,955 | $ 371

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