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Rio Tinto Limited parent company disclosures (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure Of Financial Statements Prepared Under Australian Accounting Standards [Abstract] |
Summary of financial statements |
As at 31 December | 2017 A$m | 2016 A$m
Assets |  |
Current assets | 11,914 | 8,041
Non-current assets | 7,954 | 10,758
Total assets | 19,868 | 18,799
Liabilities |  |
Current liabilities | (7,448) | (1,268)
Non-current liabilities | (35) | (4,814)
Total liabilities | (7,483) | (6,082)
Net assets | 12,385 | 12,717
Shareholders’ equity |  |
Share capital | 3,893 | 4,004
Other reserves | 420 | 413
Retained earnings | 8,072 | 8,300
Total equity | 12,385 | 12,717
Profit of the parent company | 9,688 | 4,452
Total comprehensive income of the parent company | 9,688 | 4,452

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