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Annual report pursuant to Section 13 and 15(d)

INCOME TAXES INCOME TAXES (Schedule of Effective Rate Reconciliation) (Details)

v3.3.1.900
INCOME TAXES INCOME TAXES (Schedule of Effective Rate Reconciliation) (Details) - USD ($)
AUD / $ in Millions, $ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2013
Dec. 31, 2013
Income Tax Contingency [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Ìý $ 109.6 Ìý Ìý $ (6.9) Ìý Ìý $ 416.8 Ìý Ìý
Effective Income Tax Rate Reconciliation, Percent Ìý Ìý 35.00% Ìý Ìý 35.00% Ìý Ìý 35.00% Ìý
Non-taxable loss (income) related to noncontrolling interests Ìý (3.0) Ìý Ìý (9.4) Ìý Ìý (5.4) Ìý Ìý
Non-taxable loss (income) related to noncontrolling interests percent Ìý Ìý (1.00%) Ìý Ìý 47.70% Ìý Ìý (0.50%) Ìý
Impact Of Tax Law Change Ìý 0.0 Ìý Ìý 13.0 Ìý Ìý 0.0 Ìý Ìý
Impact Of Tax Law Change Percent Ìý Ìý 0.00% Ìý Ìý (66.00%) Ìý Ìý 0.00% Ìý
Income Tax Reconciliation Tax Deduction for percentage depletion in excess of cost depletion Ìý (34.9) Ìý Ìý (87.9) Ìý Ìý (97.6) Ìý Ìý
Income Tax Reconciliation Tax Deduction for percentage depletion in excess of cost depletion percent Ìý Ìý (11.10%) Ìý Ìý 446.20% Ìý Ìý (8.20%) Ìý
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Ìý (53.9) Ìý Ìý 51.4 Ìý Ìý (48.7) Ìý Ìý
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Ìý Ìý (17.20%) Ìý Ìý (260.90%) Ìý Ìý (4.10%) Ìý
Income not subject to tax Ìý 0.0 Ìý Ìý (27.7) Ìý Ìý (84.7) Ìý Ìý
Income not subject to tax percent Ìý Ìý 0.00% Ìý Ìý 140.60% Ìý Ìý (7.10%) Ìý
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount Ìý 0.0 Ìý Ìý 22.7 Ìý Ìý 0.0 Ìý Ìý
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent Ìý Ìý 0.00% Ìý Ìý (115.20%) Ìý Ìý 0.00% Ìý
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Ìý 0.2 Ìý Ìý (25.4) Ìý Ìý 5.6 Ìý Ìý
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Ìý Ìý 0.10% Ìý Ìý 128.90% Ìý Ìý 0.50% Ìý
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount Ìý 0.0 Ìý Ìý (347.1) Ìý Ìý 0.0 Ìý Ìý
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent Ìý Ìý 0.00% Ìý Ìý 1761.90% Ìý Ìý 0.00% Ìý
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Ìý (104.6) Ìý Ìý 318.3 Ìý Ìý 53.2 Ìý Ìý
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Ìý Ìý (33.40%) Ìý Ìý (1615.70%) Ìý Ìý 4.50% Ìý
Effective Income Tax Reconciliation, Valuation Allowance Prior Year Ìý 165.8 Ìý Ìý 15.2 Ìý Ìý 0.0 Ìý Ìý
Effective Income Tax Reconciliation, Valuation Allowance Prior Year, Percent Ìý Ìý 52.90% Ìý Ìý (77.20%) Ìý Ìý 0.00% Ìý
Tax Adjustments, Settlements, and Unusual Provisions Ìý 84.1 Ìý Ìý 0.0 Ìý Ìý 12.5 Ìý Ìý
Tax Adjustments Settlements And Unusual Provisions Percent Ìý Ìý 26.90% Ìý Ìý 0.00% Ìý Ìý 1.10% Ìý
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent Ìý Ìý 1.90% 590.00% Ìý 32.10% (630.00%) Ìý 0.40% 490.00%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Ìý 0.1 Ìý Ìý 4.1 Ìý Ìý (19.0) Ìý Ìý
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Ìý Ìý 0.00% Ìý Ìý (20.90%) Ìý Ìý (1.60%) Ìý
Income Tax Expense (Benefit) $ (207.3) $ 169.3 Ìý Ìý $ (86.0) Ìý Ìý $ 237.6 Ìý Ìý
Income Tax Expense Benefit Percent Ìý Ìý 54.10% Ìý Ìý 436.50% Ìý Ìý 20.00% Ìý