Commitments and Contingent Liabilities (Tables)

3 Months Ended

Mar. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Credit Facilities

The following table provides additional information on the Company’s credit facilities as of March 31, 2014 and December 31, 2013 (dollars in millions):

			Amount Utilized(1)
Facility Capacity		Maturity Date	March 31, 2014		December 31, 2013		Basis of Fees
$	850.0	December 2015	$	65.1	$	67.6	Senior unsecured long-term debt rating
200.0		September 2019	200.0		200.0		Fixed
120.0		May 2016	80.0		85.1		Fixed
270.0		November 2017	270.0		270.0		Fixed
100.0		June 2017	86.0		89.4		Fixed
75.0(2)		November 2013	75.0		58.4		Fixed
115.1(2)		March 2019	115.1		132.5		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):

	Maximum Potential Obligation
Commitment Period	March 31, 2014		December 31, 2013
2026	$	500.0	$	500.0
2033	1,350.0		1,350.0
2036	1,250.0		1,250.0