CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 75.0	$ 70.2
Accounts receivable, net	567.5	644.3
Inventory, net	1,156.5	1,172.1
Deferred tax assets, current	57.5	67.7
Other current assets	57.8	71.4
Total current assets	1,914.3	2,025.7
Property, plant and equipment	6,419.1	6,388.4
Accumulated depreciation	(4,283.6)	(4,175.2)
Property, plant and equipment, net	2,135.5	2,213.2
Other non-current assets:
Investments in affilates	76.3	388.7
Other non-current assets	209.3	230.9
TOTAL ASSETS	4,335.4	4,858.5
Current liabilities:
Accounts payable	761.8	803.1
Accrued liabilities	225.4	266.5
Current portion of pension and other postretirement benefit obligations	63.7	55.6
Total current liabilities	1,050.9	1,125.2
Non-current liabilities:
Long-term debt	2,442.5	2,452.5
Pension and other postretirement benefit obligations	1,174.2	1,225.3
Other non-current liabilities	130.8	132.5
TOTAL LIABILITIES	4,798.4	4,935.5
Equity (deficit):
Common stock, authorized 300,000,000 shares of $0.01 par value each; issued 178,195,288 and 177,362,600 shares in 2015 and 2014; outstanding 177,812,475 and 177,215,816 shares in 2015 and 2014	1.8	1.8
Additional paid-in capital	2,265.0	2,259.1
Treasury stock, common shares at cost, 382,813 and 146,784 shares in 2015 and 2014	(2.0)	(1.0)
Accumulated deficit	(2,918.3)	(2,548.0)
Accumulated other comprehensive loss	(212.4)	(204.4)
Total stockholders' equity (deficit)	(865.9)	(492.5)
Noncontrolling interests	402.9	415.5
TOTAL EQUITY (DEFICIT)	(463.0)	(77.0)
TOTAL LIABILITIES AND EQUITY (DEFICIT)	4,335.4	4,858.5
Variable Interest Entity, Primary Beneficiary [Member] | SunCoke Middletown [Member]
Current assets:
Cash and cash equivalents	21.0	18.2
Inventory, net	19.3	29.6
Property, plant and equipment	420.7	420.1
Accumulated depreciation	(50.4)	(43.3)
Other assets (liabilities), net	0.1	(0.3)
Current liabilities:
Accounts payable	9.6	10.6
Equity (deficit):
Noncontrolling interests	401.1	413.7
Variable Interest Entity, Primary Beneficiary [Member] | Other Variable Interest Entities [Member]
Current assets:
Cash and cash equivalents	1.2	1.0
Property, plant and equipment	11.4	11.4
Accumulated depreciation	(9.3)	(9.3)
Other assets (liabilities), net	0.5	0.6
Equity (deficit):
Noncontrolling interests	$ 1.8	$ 1.8