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Provision for Environmental Rehabilitation (Tables) | 12 Months Ended
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Dec. 31, 2015
Reconciliation of Total Liability for Environmental Rehabilitation | The following is a reconciliation of the total liability for environmental rehabilitation:
|  | December 31, 2015 |  |  | December 31, 2014 |
Provision for environmental rehabilitation |  |  |  |  |  |  |  |
Opening balance |  |  | 300.1 |  |  |  | 269.2 |
Change in estimates |  |  | (6.2 | ) |  |  | 36.7 |
Liabilities settled |  |  | (9.8 | ) |  |  | (2.8 | )
Accretion of liability |  |  | 13.9 |  |  |  | 15.4 |
Foreign currency translation adjustment |  |  | (22.3 | ) |  |  | (18.4 | )
Closing balance |  |  | 275.7 |  |  |  | 300.1 |
Undiscounted Closure Cost Estimates | The provision is calculated using the following undiscounted closure cost estimates:
|  | December 31, 2015 |  |  | December 31, 2014 |
South Africa |  |  | 29.0 |  |  |  | 32.3 |
Ghana |  |  | 91.5 |  |  |  | 89.4 |
Australia |  |  | 186.0 |  |  |  | 212.7 |
Peru |  |  | 46.7 |  |  |  | 56.4 |
Total closure cost estimate 1 |  |  | 353.2 |  |  |  | 390.8 |
(1) | Includes discounting of $77.5 million in the year ended December 31, 2015 (December 31, 2014: $90.7 million) in order to reconcile the gross closure cost estimate of $353.2 million (December 31, 2014: $390.8 million) to the provision for environmental rehabilitation of $275.7 million (December 31, 2014: $300.1 million)

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- Definition Tabular disclosure of the undiscounted closure cost estimates used in the calculation of asset retirement obligation. + References No definition available. + Details
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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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