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v3.21.2

Net Debt - Summary of Interest Bearing Liabilities and Cash and Cash Equivalents Denominated by Currency (Detail) - USD ($) $ in Millions | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
--- | --- | --- | ---
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
Interest bearing liabilities | $ 20,983 | $ 27,048 |
Cash and cash equivalents | 15,246 | 13,426 | $ 15,613
USD [member] |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
Interest bearing liabilities | 11,146 | 14,625 |
Cash and cash equivalents | 12,003 | 9,555 |
EUR [member] |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
Interest bearing liabilities | 4,505 | 7,323 |
Cash and cash equivalents | 4 | 4 |
GBP [member] |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
Interest bearing liabilities | 3,415 | 3,272 |
Cash and cash equivalents | 32 | 519 |
AUD [member] |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
Interest bearing liabilities | 1,053 | 1,055 |
Cash and cash equivalents | 573 | 1,011 |
CAD [member] |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
Interest bearing liabilities | 635 | 597 |
Cash and cash equivalents | 2,455 | 2,131 |
Other [member] |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
Interest bearing liabilities | 229 | 176 |
Cash and cash equivalents | $ 179 | $ 206 |

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