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Annual report pursuant to Section 13 and 15(d)

DISCONTINUED OPERATIONS Schedule of Disposal Groups, including Discontinued Operations, Assets and Liabilities - Canadian Entities (Details)

v3.6.0.2
DISCONTINUED OPERATIONS Schedule of Disposal Groups, including Discontinued Operations, Assets and Liabilities - Canadian Entities (Details)
CAD in Thousands, $ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2015
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Jun. 30, 2016
CAD
Mar. 31, 2016
CAD
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý
Deconsolidation, Gain (Loss), Amount Ìý Ìý $ (528.2) Ìý Ìý Ìý
Sale amount for Pointe Noire port and rail assets | CAD Ìý Ìý Ìý Ìý Ìý CAD 66,750
Sale Amount of the Bloom Lake Mine and Labrador Trough South mineral claims | CAD Ìý Ìý Ìý Ìý CAD 10,500 Ìý
Canadian Entities [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý
Deconsolidation, Gain (Loss), Amount Ìý $ (17.5) (710.9) $ 0.0 Ìý Ìý
Wabush [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý
Debtor-in-Possession Financing, Borrowings Outstanding Ìý 0.0 Ìý Ìý Ìý Ìý
Bloom Lake Group [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý
Deconsolidation, Gain (Loss), Amount $ 818.7 Ìý Ìý Ìý Ìý Ìý
Other Current Assets [Member] | Canadian Entities [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý
Debtor-in-Possession Financing, Borrowings Outstanding Ìý 1.5 Ìý Ìý Ìý Ìý
Debtor-in-possession,Repayment Ìý 8.3 Ìý Ìý Ìý Ìý
Other Current Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Canadian Entities [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý
Loans, Associated Interest and Accounts Receivable recognized in Consolidated Financials at Fair Value Ìý 48.6 72.9 Ìý Ìý Ìý
Other Current Liabilities [Member] | Bloom Lake Group [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý
Contingent Liabilities recognized in Consolidated Financials Ìý 37.0 35.9 Ìý Ìý Ìý
Guarantees [Member] | Bloom Lake Group [Member] Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý
Contingent Liabilities recognized in Consolidated Financials Ìý $ 0.2 $ 96.5 Ìý Ìý Ìý