Quarterly report pursuant to Section 13 or 15(d)

SUPPLEMENTARY GUARANTOR INFORMATION (Supplementary Statements of Condensed Consolidating Operations and Comprehensive Income) (Details)

v3.10.0.1
SUPPLEMENTARY GUARANTOR INFORMATION (Supplementary Statements of Condensed Consolidating Operations and Comprehensive Income) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Product $ 672.0 $ 417.0 $ 841.2 $ 664.3
Freight and venture partners' cost reimbursements 42.3 54.3 53.1 93.2
Revenues 714.3 471.3 894.3 757.5
COST OF GOODS SOLD AND OPERATING EXPENSES (429.8) (326.6) (548.3) (563.8)
SALES MARGIN 284.5 144.7 346.0 193.7
Selling, general and administrative expenses (26.2) (26.6) (51.3) (51.7)
Miscellaneous - net (4.1) (2.9) (10.2) 6.6
Other operating expense (30.3) (29.5) (61.5) (45.1)
OPERATING INCOME 254.2 115.2 284.5 148.6
Interest expense, net (31.2) (30.1) (63.6) (71.5)
Gain (loss) on extinguishment of debt 0.2 (4.9) 0.2 (76.8)
Other non-operating income 4.4 2.5 8.8 5.0
TOTAL OTHER INCOME (EXPENSE) (26.6) (32.5) (54.6) (143.3)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES 227.6 82.7 229.9 5.3
Income Tax Expense (Benefit) 1.8 1.1 (13.9) 0.0
Equity in income (loss) of subsidiaries 0.0 0.0 0.0 0.0
INCOME FROM CONTINUING OPERATIONS 229.4 83.8 216.0 5.3
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX (64.3) (53.7) (135.2) (5.0)
NET INCOME 165.1 30.1 80.8 0.3
LOSS ATTRIBUTABLE TO NONCONTROLLING INTEREST 0.0 1.7 0.0 3.4
NET INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS 165.1 31.8 80.8 3.7
Other comprehensive income (loss) 9.1 4.9 16.8 1.9
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS 174.2 36.7 97.6 5.6
Reportable Legal Entities [Member] | Cliffs Shareholders Equity [Member]        
Product 0.0 0.0 0.0 0.0
Freight and venture partners' cost reimbursements 0.0 0.0 0.0 0.0
Revenues 0.0 0.0 0.0 0.0
COST OF GOODS SOLD AND OPERATING EXPENSES 0.0 0.0 0.0 0.0
SALES MARGIN 0.0 0.0 0.0 0.0
Selling, general and administrative expenses (19.7) (19.7) (39.8) (39.2)
Miscellaneous - net (0.2) (0.8) (0.4) (0.9)
Other operating expense (19.9) (20.5) (40.2) (40.1)
OPERATING INCOME (19.9) (20.5) (40.2) (40.1)
Interest expense, net (30.8) (30.4) (62.7) (72.0)
Gain (loss) on extinguishment of debt 0.2 (4.9) 0.2 (76.8)
Other non-operating income (0.8) (1.0) (1.7) (2.0)
TOTAL OTHER INCOME (EXPENSE) (31.4) (36.3) (64.2) (150.8)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES (51.3) (56.8) (104.4) (190.9)
Income Tax Expense (Benefit) 2.1 8.0 (13.5) 0.2
Equity in income (loss) of subsidiaries 210.4 129.6 194.7 243.0
INCOME FROM CONTINUING OPERATIONS 161.2 80.8 76.8 52.3
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX 3.9 (49.0) 4.0 (48.6)
NET INCOME   31.8   3.7
LOSS ATTRIBUTABLE TO NONCONTROLLING INTEREST   0.0   0.0
NET INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS 165.1 31.8 80.8 3.7
Other comprehensive income (loss) 9.1 5.0 16.8 2.0
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS 174.2 36.8 97.6 5.7
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]        
Product 672.0 417.0 841.2 664.3
Freight and venture partners' cost reimbursements 42.3 54.3 53.1 93.2
Revenues 714.3 471.3 894.3 757.5
COST OF GOODS SOLD AND OPERATING EXPENSES (429.8) (326.6) (548.3) (563.8)
SALES MARGIN 284.5 144.7 346.0 193.7
Selling, general and administrative expenses (5.4) (5.7) (9.7) (10.1)
Miscellaneous - net (3.6) (3.7) (8.9) (9.2)
Other operating expense (9.0) (9.4) (18.6) (19.3)
OPERATING INCOME 275.5 135.3 327.4 174.4
Interest expense, net (0.6) 0.0 (1.4) 0.0
Gain (loss) on extinguishment of debt 0.0 0.0 0.0 0.0
Other non-operating income 0.2 (0.8) 0.7 (1.6)
TOTAL OTHER INCOME (EXPENSE) (0.4) (0.8) (0.7) (1.6)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES 275.1 134.5 326.7 172.8
Income Tax Expense (Benefit) (0.1) 0.8 (0.2) 0.0
Equity in income (loss) of subsidiaries 4.6 3.4 9.1 6.6
INCOME FROM CONTINUING OPERATIONS 279.6 138.7 335.6 179.4
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX (0.3) 0.7 (0.1) 0.9
NET INCOME   139.4   180.3
LOSS ATTRIBUTABLE TO NONCONTROLLING INTEREST   1.7   3.4
NET INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS 279.3 141.1 335.5 183.7
Other comprehensive income (loss) 6.0 5.7 11.9 16.5
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS 285.3 146.8 347.4 200.2
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]        
Product 0.0 0.0 0.0 0.0
Freight and venture partners' cost reimbursements 0.0 0.0 0.0 0.0
Revenues 0.0 0.0 0.0 0.0
COST OF GOODS SOLD AND OPERATING EXPENSES 0.0 0.0 0.0 0.0
SALES MARGIN 0.0 0.0 0.0 0.0
Selling, general and administrative expenses (1.1) (1.2) (1.8) (2.4)
Miscellaneous - net (0.3) 1.6 (0.9) 16.7
Other operating expense (1.4) 0.4 (2.7) 14.3
OPERATING INCOME (1.4) 0.4 (2.7) 14.3
Interest expense, net 0.2 0.3 0.5 0.5
Gain (loss) on extinguishment of debt 0.0 0.0 0.0 0.0
Other non-operating income 5.0 4.3 9.8 8.6
TOTAL OTHER INCOME (EXPENSE) 5.2 4.6 10.3 9.1
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES 3.8 5.0 7.6 23.4
Income Tax Expense (Benefit) (0.2) (7.7) (0.2) (0.2)
Equity in income (loss) of subsidiaries 0.0 0.0 0.0 0.0
INCOME FROM CONTINUING OPERATIONS 3.6 (2.7) 7.4 23.2
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX (67.9) (5.4) (139.1) 42.7
NET INCOME   (8.1)   65.9
LOSS ATTRIBUTABLE TO NONCONTROLLING INTEREST   0.0   0.0
NET INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS (64.3) (8.1) (131.7) 65.9
Other comprehensive income (loss) 2.2 (1.5) 3.0 (19.3)
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS (62.1) (9.6) (128.7) 46.6
Consolidation, Eliminations [Member]        
Product 0.0 0.0 0.0 0.0
Freight and venture partners' cost reimbursements 0.0 0.0 0.0 0.0
Revenues 0.0 0.0 0.0 0.0
COST OF GOODS SOLD AND OPERATING EXPENSES 0.0 0.0 0.0 0.0
SALES MARGIN 0.0 0.0 0.0 0.0
Selling, general and administrative expenses 0.0 0.0 0.0 0.0
Miscellaneous - net 0.0 0.0 0.0 0.0
Other operating expense 0.0 0.0 0.0 0.0
OPERATING INCOME 0.0 0.0 0.0 0.0
Interest expense, net 0.0 0.0 0.0 0.0
Gain (loss) on extinguishment of debt 0.0 0.0 0.0 0.0
Other non-operating income 0.0 0.0 0.0 0.0
TOTAL OTHER INCOME (EXPENSE) 0.0 0.0 0.0 0.0
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES 0.0 0.0 0.0 0.0
Income Tax Expense (Benefit) 0.0 0.0 0.0 0.0
Equity in income (loss) of subsidiaries (215.0) (133.0) (203.8) (249.6)
INCOME FROM CONTINUING OPERATIONS (215.0) (133.0) (203.8) (249.6)
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX 0.0 0.0 0.0 0.0
NET INCOME   (133.0)   (249.6)
LOSS ATTRIBUTABLE TO NONCONTROLLING INTEREST   0.0   0.0
NET INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS (215.0) (133.0) (203.8) (249.6)
Other comprehensive income (loss) (8.2) (4.3) (14.9) 2.7
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS $ (223.2) $ (137.3) $ (218.7) $ (246.9)