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Deferred Taxation - Schedule of Detailed Components of Net Deferred Taxation Liability (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Liabilities |  |
Liabilities | $ 864.7 | $ 1,051.3
Assets |  |
Assets | (679.3) | (669.4)
Net deferred taxation liabilities | 185.4 | 381.9
Included in the statement of financial position as follows: |  |
Deferred taxation assets | (269.5) | (72.0)
Deferred taxation liabilities | 454.9 | 453.9
Net deferred taxation liabilities | 185.4 | 381.9
Balance at beginning of the year | 381.9 | 409.9
Recognised in profit or loss - continuing operations | (211.6) | (31.5)
Recognised in profit or loss - discontinued operations | 0.0 | 3.4
Recognised in OCI | (4.0) | 0.0
Translation adjustment | 19.1 | 0.1
Balance at end of the year | 185.4 | 381.9
Mining Assets [member] |  |
Liabilities |  |
Liabilities | 835.7 | 1,014.1
Environmental Trust Funds [member] |  |
Liabilities |  |
Liabilities | 3.2 | 3.4
Inventories [member] |  |
Liabilities |  |
Liabilities | 11.3 | 12.1
Unremitted earnings [member] |  |
Liabilities |  |
Liabilities | 9.3 | 9.1
Other [member] |  |
Liabilities |  |
Liabilities | 5.2 | 12.6
Provisions [member] |  |
Assets |  |
Assets | (95.8) | (108.4)
Tax Losses [member] |  |
Assets |  |
Assets | (98.4) | (69.1)
Unredeemed Capital Expenditure [member] |  |
Assets |  |
Assets | (475.9) | (491.9)
Finance lease liability [member] |  |
Assets |  |
Assets | (2.0) | 0.0
Deferred Tax Assets Other [member] |  |
Assets |  |
Assets | $ (7.2) | $ 0.0

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