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Other equity | 12 Months Ended
--- | ---
Jun. 30, 2018
Text block1 [abstract] |
Other equity | 15 Other equity
|  | 2018 |  |  | 2017 |  |  | 2016 |  |  | Recognition and measurement
|  | US$M |  |  | US$M |  |  | US$M |  |  |
Share premium account |  |  | 518 |  |  |  | 518 |  |  |  | 518 |  |  | The share premium account represents the premium paid on the issue of BHP Billiton Plc shares recognised in accordance with the UK Companies Act 2006.
Foreign currency translation reserve |  |  | 42 |  |  |  | 40 |  |  |  | 41 |  |  | The foreign currency translation reserve represents exchange differences arising from the translation of non-US dollar functional currency operations within the Group into US dollars.
Employee share awards reserve |  |  | 196 |  |  |  | 214 |  |  |  | 293 |  |  | The employee share awards reserve represents the accrued employee entitlements to share awards that have been charged to the income statement and have not yet been exercised. Once exercised, the difference between the accumulated fair value of the awards and their historical on-market purchase price is recognised in retained earnings.
Hedging reserve |  |  | 58 |  |  |  | 153 |  |  |  | 210 |  |  | The hedging reserve represents hedging gains and losses recognised on the effective portion of cash flow hedges. The cumulative deferred gain or loss on the hedge is recognised in the income statement when the hedged transaction impacts the income statement, or is recognised as an adjustment to the cost of non-financial hedged items. The hedging reserve records the portion of the gain or loss on a hedging instrument in a cash flow hedge that is determined to be an effective hedge relationship.
Financial assets reserve |  |  | 16 |  |  |  | 10 |  |  |  | 11 |  |  | The financial assets reserve represents the revaluation of available for sale financial assets. Where a revalued financial asset is sold or impaired, the relevant portion of the reserve is transferred to the income statement.
Share buy-back reserve |  |  | 177 |  |  |  | 177 |  |  |  | 177 |  |  | The share buy-back reserve represents the par value of BHP Billiton Plc shares that were purchased and subsequently cancelled. The cancellation of the shares creates anon-distributable capital redemption reserve.
Non-controlling interest contribution reserve |  |  | 1,283 |  |  |  | 1,288 |  |  |  | 1,288 |  |  | The non-controlling interest contribution reserve represents the excess of consideration received over the book value of net assets attributable to equity instruments when acquired bynon-controlling interests.
Total reserves |  |  | 2,290 |  |  |  | 2,400 |  |  |  | 2,538 |  |  |
Summarised financial information relating to each of the Group’s subsidiaries with non-controlling interests (NCI) that are material to the Group before any intra-group eliminations is shown below:
|  | 2018 |  |  | 2017 |
US$M |  | Minera Escondida Limitada |  |  | Other individually immaterial subsidiaries (incl. intra- group eliminations) |  |  | Total |  |  | Minera Escondida Limitada |  |  | Other individually immaterial subsidiaries (incl. intra- group eliminations) |  |  | Total |
Group share (per cent) |  |  | 57.5 |  |  |  |  |  |  |  |  |  |  |  | 57.5 |  |  |  |  |  |  |  |  |
Current assets |  |  | 2,751 |  |  |  |  |  |  |  |  |  |  |  | 2,107 |  |  |  |  |  |  |  |  |
Non-current assets |  |  | 13,389 |  |  |  |  |  |  |  |  |  |  |  | 14,528 |  |  |  |  |  |  |  |  |
Current liabilities |  |  | (1,781 | ) |  |  |  |  |  |  |  |  |  |  | (1,339 | ) |  |  |  |  |  |  |  |
Non-current liabilities |  |  | (4,352 | ) |  |  |  |  |  |  |  |  |  |  | (4,300 | ) |  |  |  |  |  |  |  |
Net assets |  |  | 10,007 |  |  |  |  |  |  |  |  |  |  |  | 10,996 |  |  |  |  |  |  |  |  |
Net assets attributable to NCI |  |  | 4,253 |  |  |  | 825 |  |  |  | 5,078 |  |  |  | 4,673 |  |  |  | 795 |  |  |  | 5,468 |
Revenue |  |  | 8,775 |  |  |  |  |  |  |  |  |  |  |  | 4,576 |  |  |  |  |  |  |  |  |
Profit after taxation |  |  | 2,221 |  |  |  |  |  |  |  |  |  |  |  | 516 |  |  |  |  |  |  |  |  |
Other comprehensive income |  |  | (2 | ) |  |  |  |  |  |  |  |  |  |  | – |  |  |  |  |  |  |  |  |
Total comprehensive income |  |  | 2,219 |  |  |  |  |  |  |  |  |  |  |  | 516 |  |  |  |  |  |  |  |  |
Profit after taxation attributable to NCI |  |  | 944 |  |  |  | 174 |  |  |  | 1,118 |  |  |  | 219 |  |  |  | 113 |  |  |  | 332 |
Other comprehensive income attributable to NCI |  |  | (1 | ) |  |  | 1 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |
Net operating cash flow |  |  | 5,041 |  |  |  |  |  |  |  |  |  |  |  | 1,964 |  |  |  |  |  |  |  |  |
Net investing cash flow |  |  | (997 | ) |  |  |  |  |  |  |  |  |  |  | (999 | ) |  |  |  |  |  |  |  |
Net financing cash flow |  |  | (3,392 | ) |  |  |  |  |  |  |  |  |  |  | (968 | ) |  |  |  |  |  |  |  |
Dividends paid to NCI (1) |  |  | 1,469 |  |  |  | 135 |  |  |  | 1,604 |  |  |  | 507 |  |  |  | 74 |  |  |  | 581 |
(1) | Includes dividends paid to non-controlling interests related to Onshore US of US$22 million (2017: US$6 million). Refer to note 26 ‘Discontinued operations’.
While the Group controls Minera Escondida Limitada, the non-controlling interests hold certain protective rights that restrict the Group’s ability to sell assets held by Minera Escondida Limitada, or use the assets in other subsidiaries and operations owned by the Group. Minera Escondida Limitada is also restricted from paying dividends without the approval of the non-controlling interests.

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