Discontinued Operations - Summary of Cash Flows from Discontinued Operations (Parenthetical) (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2019 |
|
| Disclosure of analysis of single amount of discontinued operations [line items] | |||
| Purchases of property, plant and equipment | $ 6,606 | $ 6,900 | $ 6,250 |
| Net repayment of interest bearing liabilities | 8,395 | 2,047 | 2,604 |
| Dividends paid to non-controlling interests | $ 2,127 | $ 1,043 | 1,198 |
| Discontinued operations [member] | |||
| Disclosure of analysis of single amount of discontinued operations [line items] | |||
| Purchases of property, plant and equipment | 443 | ||
| Net repayment of interest bearing liabilities | 6 | ||
| Dividends paid to non-controlling interests | $ 7 | ||