Environmental and Legal Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule of environmental-related capital investments and compliance costs

Over the past three years, the Company has expended the following for environmental-related capital investments and environmental compliance:

	2014		2013		2012
Environmental-related capital investments	$	7.2	$	1.6	$	1.0
Environmental compliance costs	112.4		101.1		101.6

Schedule of accrual of liabilities related to environmental loss contingencies

Liabilities recorded on the Company’s Condensed Consolidated Balance Sheets for such estimated probable costs relating to environmental matters are presented below:

	2014		2013
Accrued liabilities	$	17.6	$	9.5
Other non-current liabilities	32.7		34.1

Schedule of information on pending asbestos cases

Information on asbestos cases pending at December 31, 2014, is presented below:

	Asbestos Cases Pending at
	December 31, 2014
Cases with specific dollar claims for damages:
Claims up to $0.2	112
Claims above $0.2 to $5.0	6
Claims above $5.0 to $15.0	2
Claims above $15.0 to $20.0	2
Claims above $20.0 to $30.5	1
Total claims with specific dollar claims for damages (a)	123
Cases without a specific dollar claim for damages	273
Total asbestos cases pending	396

(a) Involve a total of 2,331 plaintiffs and 16,558 defendants

Schedule of number of new asbestos claims filed, number of pending asbestos claims disposed, and amount paid in settlements

Set forth below is a chart showing the number of new claims filed (accounted for as described above), the number of pending claims disposed of (i.e., settled or otherwise dismissed), and the approximate net amount of dollars paid on behalf of AK Steel in settlement of asbestos-related claims in 2014, 2013 and 2012.

	2014		2013		2012
New Claims Filed	50		42		50
Pending Claims Disposed Of	90		39		24
Total Amount Paid in Settlements	$	0.7	$	1.0	$	0.8

Schedule Of Percentages To Calculate Cash Deposits On Imports Of NOES From Foreign Countries To US [Table Text Block]

On October 7, 2014, the DOC issued its final dumping determinations as to all six subject countries as follows:

Country	NOES Dumping Margins
China	407.52%
Germany	86.29% — 98.84%
Japan	135.59% — 204.79%
South Korea	6.88%
Sweden	98.46% — 126.72%
Taiwan	27.54% — 52.23%