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SEGMENT REPORTING SEGMENTS REPORTING (Revenue by Geographical Location) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 476.0 | $ 593.2 | $ 498.1 | $ 446.0 | $ 1,030.3 | $ 979.7 | $ 747.7 | $ 615.5 | $ 2,013.3 | $ 3,373.2 | $ 3,890.8
PROPERTY, PLANT AND EQUIPMENT, NET | 1,059.0 |  |  |  | 1,070.5 |  |  |  | 1,059.0 | 1,070.5 | 1,870.8
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 1,206.4 | 1,923.2 | 1,543.9
PROPERTY, PLANT AND EQUIPMENT, NET | 1,012.7 |  |  |  | 998.1 |  |  |  | 1,012.7 | 998.1 | 1,120.6
AUSTRALIA |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
PROPERTY, PLANT AND EQUIPMENT, NET | $ 46.3 |  |  |  | $ 72.4 |  |  |  | 46.3 | 72.4 | 750.2
China [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 370.8 | 662.7 | 1,165.3
Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 282.4 | 430.5 | 758.5
Other Countries [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 153.7 | $ 356.8 | $ 423.1

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