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Discontinued Operations - Summary of Assets and Liabilities Classified as Current Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Millions | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
--- | --- | --- | ---
ASSETS |  |  |
Trade and other receivables | $ 3,276 | $ 3,639 |
Other financial assets | 1,199 | 1,353 |
Inventories | 3,764 | 3,673 |
Property, plant and equipment | 67,182 | 80,497 | $ 83,975
Intangible assets | 778 | 3,968 | $ 4,119
Total assets | 11,939 |  |
LIABILITIES |  |  |
Trade and other payables | 5,980 | 5,556 |
Interest bearing liabilities | 26,805 | 30,474 |
Other financial liabilities | 1,231 | 1,500 |
Total liabilities | 1,222 |  |
Net assets | 60,670 | $ 62,726 |
Assets and liabilities held for sale [member] |  |  |
ASSETS |  |  |
Trade and other receivables | 529 |  |
Other financial assets | 2 |  |
Inventories | 36 |  |
Property, plant and equipment | 10,672 |  |
Intangible assets | 667 |  |
Other | 33 |  |
LIABILITIES |  |  |
Trade and other payables | 725 |  |
Interest bearing liabilities | 5 |  |
Other financial liabilities | 3 |  |
Provisions | 489 |  |
Net assets | $ 10,717 |  |

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