Commitments and Contingent Liabilities (Tables)

9 Months Ended

Sep. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Credit Facilities

The following table provides additional information on the Company’s credit facilities as of September 30, 2013 and December 31, 2012 (dollars in millions):

			Amount Utilized(1)
Facility Capacity		Maturity Date	September 30, 2013		December 31, 2012		Basis of Fees
$	850.0	December 2015	$	73.9	$	402.9	Senior unsecured long-term debt rating
200.0		September 2019	200.0		200.0		Fixed
120.0		May 2016	115.0		100.0		Fixed
270.0		November 2017	270.0		—		Fixed
100.0		June 2017	92.2		—		Fixed
52.9		November 2013	52.9		—		Fixed
151.4		March 2019	151.4		—		Fixed

(1) Represents issued but undrawn letters of credit. There was no cash borrowed for the periods presented.

Commitment Obligations

The following table presents information about these commitments (dollars in millions):

Commitment Period	Maximum Potential Obligation
2033	$	1,350.0
2035	560.0