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Other Equity - Summary of Financial Information Relating to Subsidiaries with Non-controlling Interests (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Disclosure of significant subsidiaries [line items] |  |  |
Current assets | $ 26,693 | $ 21,471 |
Non-current assets | 82,234 | 84,262 |
Current liabilities | (16,403) | (14,824) |
Non-current liabilities | (36,919) | (38,734) |
Net assets | 55,605 | 52,175 |
Net assets attributable to NCI | 4,341 | 4,310 |
Revenue | 60,817 | 42,931 | $ 44,288
Profit after taxation | 13,451 | 8,736 | 9,185
Other comprehensive income | 59 | (69) | (25)
Total comprehensive income | 13,510 | 8,667 | 9,160
Profit after taxation attributable to NCI | 2,147 | 780 | 879
Net operating cash flow | 27,234 | 15,706 | 17,871
Net investing cash flow | (7,845) | (7,616) | 2,607
Net financing cash flow | $ (17,922) | $ (9,752) | $ (20,528)
Minera Escondida Limitada [member] |  |  |
Disclosure of significant subsidiaries [line items] |  |  |
Group share (per cent) | 57.50% | 57.50% |
Current assets | $ 2,996 | $ 2,432 |
Non-current assets | 11,867 | 12,121 |
Current liabilities | (1,912) | (1,614) |
Non-current liabilities | (4,733) | (4,613) |
Net assets | 8,218 | 8,326 |
Net assets attributable to NCI | 3,493 | 3,539 |
Revenue | 9,470 | 6,719 |
Profit after taxation | 3,605 | 1,088 |
Other comprehensive income | 27 | (27) |
Total comprehensive income | 3,632 | 1,061 |
Profit after taxation attributable to NCI | 1,532 | 462 |
Other comprehensive income attributable to NCI | 11 | (11) |
Net operating cash flow | 5,007 | 2,637 |
Net investing cash flow | (655) | (919) |
Net financing cash flow | (4,001) | (1,920) |
Dividends paid to NCI | 1,590 | 757 |
Other individually immaterial subsidiaries [member] |  |  |
Disclosure of significant subsidiaries [line items] |  |  |
Net assets attributable to NCI | 848 | 771 |
Profit after taxation attributable to NCI | 615 | 318 |
Dividends paid to NCI | 537 | 286 |
Subsidiaries with material non-controlling interests [member] |  |  |
Disclosure of significant subsidiaries [line items] |  |  |
Net assets attributable to NCI | 4,341 | 4,310 |
Profit after taxation attributable to NCI | 2,147 | 780 |
Other comprehensive income attributable to NCI | 11 | (11) |
Dividends paid to NCI | $ 2,127 | $ 1,043 |

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