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Other disclosures - Summary financial information for joint ventures by fair value (Detail) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Disclosure of joint ventures [line items] |  |  |  |  |  |
Consolidated sales revenue |  | $ 19,362 |  | $ 20,722 |  |
Depreciation and amortisation |  | (2,092) |  | (2,096) |  |
Finance costs | [1] | (169) |  | (273) |  |
Taxation |  | (1,828) |  | (2,255) |  |
Profit after tax for the period |  | 3,451 |  | 2,931 |  |
Other comprehensive (loss)/income |  | (1,141) |  | (240) |  |
Total comprehensive income |  | 2,310 | [2] | 2,691 | [3] |
Non-current assets |  | 69,376 |  |  |  | $ 70,499
Current assets |  | 15,153 |  |  |  | 17,303
Current liabilities |  | (9,400) |  |  |  | (11,125)
Non-current liabilities |  | (31,473) |  |  |  | (31,435)
Net assets |  | 43,656 |  |  |  | 45,242
Cash and cash equivalents |  | 6,269 |  | 6,861 |  | 8,027
Minera Escondida Limitada |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |
Consolidated sales revenue |  | 3,137 |  | 3,537 |  |
Depreciation and amortisation |  | (797) |  | (790) |  |
Other operating costs |  | (1,243) |  | (1,640) |  |
Operating profit |  | 1,097 |  | 1,107 |  |
Finance costs |  | (70) |  | (80) |  |
Taxation |  | (370) |  | (387) |  |
Profit after tax for the period |  | 657 |  | 640 |  |
Other comprehensive (loss)/income |  | (27) |  | 0 |  |
Total comprehensive income |  | 630 |  | 640 |  |
Non-current assets |  | 12,004 |  |  |  | 12,450
Current assets |  | 2,393 |  |  |  | 2,250
Current liabilities |  | (1,547) |  |  |  | (1,827)
Non-current liabilities |  | (4,540) |  |  |  | (4,670)
Net assets |  | 8,310 |  |  |  | 8,203
Cash and cash equivalents |  | 533 |  |  |  | 603
– current financial liabilities |  | (783) |  |  |  | (807)
– non-current financial liabilities |  | (2,217) |  |  |  | (2,380)
Dividends received from joint venture (Rio Tinto share) |  | 183 |  | 315 |  |
Sohar Aluminium Co. L.L.C. |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |
Consolidated sales revenue |  | 325 |  | 325 |  |
Depreciation and amortisation |  | (55) |  | (60) |  |
Other operating costs |  | (225) |  | (220) |  |
Operating profit |  | 45 |  | 45 |  |
Finance costs |  | (15) |  | (15) |  |
Taxation |  | (5) |  | (5) |  |
Profit after tax for the period |  | 25 |  | 25 |  |
Other comprehensive (loss)/income |  | 0 |  | 0 |  |
Total comprehensive income |  | 25 |  | 25 |  |
Non-current assets |  | 2,990 |  |  |  | 3,045
Current assets |  | 250 |  |  |  | 290
Current liabilities |  | (185) |  |  |  | (205)
Non-current liabilities |  | (745) |  |  |  | (845)
Net assets |  | 2,310 |  |  |  | 2,285
Cash and cash equivalents |  | 20 |  |  |  | 20
– current financial liabilities |  | (110) |  |  |  | (110)
– non-current financial liabilities |  | (575) |  |  |  | $ (675)
Dividends received from joint venture (Rio Tinto share) |  | $ 0 |  | $ 0 |  |
[1] | Finance costs in the income statement include hedging adjustments and are net of amounts capitalised of US$175 million (30 June 2019: US$166 million).
[2] | Refer to Group statement of comprehensive income for further details.
[3] | Refer to Group statement of comprehensive income for further details.

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