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Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2017
Text block1 [abstract] |
Summary of Financial Instruments |
|  | UNITED STATES DOLLAR |
|  | 2017 |  |  | 2016 |
Financial instruments are split per categories below and the accounting policies for financial instruments have been applied to these line items: |  |  |  |  |  |  |  |
(a) Financial assets |  |  |  |  |  |  |  |
Loans and receivables |  |  |  |  |  |  |  |
- Environmental trust funds |  |  | 55.5 |  |  |  | 44.5 |
- Trade and other receivables |  |  | 45.3 |  |  |  | 57.9 |
- Cash and cash equivalents |  |  | 479.0 |  |  |  | 526.7 |
Fair value through profit or loss |  |  |  |  |  |  |  |
- Trade receivables from provisional copper and gold concentrate sales |  |  | 21.2 |  |  |  | 10.6 |
Available for sale |  |  |  |  |  |  |  |
- Investments |  |  | 99.1 |  |  |  | 13.8 |
Derivative instruments |  |  |  |  |  |  |  |
- Warrants |  |  | 5.5 |  |  |  | 5.9 |
- Gold and oil derivative contracts |  |  | 25.0 |  |  |  | — |
(b) Financial liabilities |  |  |  |  |  |  |  |
Other financial liabilities |  |  |  |  |  |  |  |
- Borrowings |  |  | 1,781.5 |  |  |  | 1,692.9 |
- Trade and other payables |  |  | 451.0 |  |  |  | 459.3 |
- South Deep dividend |  |  | 6.4 |  |  |  | 6.4 |
Derivative instruments |  |  |  |  |  |  |  |
- Copper derivative contracts |  |  | 3.3 |  |  |  | — |

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- Definition The disclosure of detailed information about financial instruments. [Refer: Financial instruments, class [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 31 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_31&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_7&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 35K -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35K&doctype=Standard -URIDate 2017-03-09 + Details
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