Environmental and Legal Contingencies (Tables)

9 Months Ended

Sep. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of accrual of liabilities related to environmental loss contingencies

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

	September 30, 2013		December 31, 2012
Accrued liabilities	$	14.7	$	19.6
Other non-current liabilities	26.7		27.4

Schedule of information on pending asbestos cases

Information on asbestos cases is presented below:

	Asbestos Cases Pending at
	September 30, 2013
Cases with specific dollar claims for damages:
Claims up to $0.2		119
Claims above $0.2 to $5.0		6
Claims above $5.0 to $15.0		2
Claims above $15.0 to $20.0		2
Total claims with specific dollar claims for damages (a)		129
Cases without a specific dollar claim for damages		308
Total asbestos cases pending		437

(a) Involve a total of 2,385 plaintiffs and 17,626 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.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
New Claims Filed	10		14		34		41
Pending Claims Disposed Of	5		4		30		15
Total Amount Paid in Settlements	$	—	$	0.1	$	0.9	$	0.4