Debt (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

Debt consisted of the following at December 31,

(dollars in millions)	2013		2012
Commercial paper payable through 2014	$	240.5	$	203.8
Notes payable in 2014, at an interest rate of 5.65% less unamortized discount of $0.1 and $0.2, respectively	399.9		399.8
Notes payable in 2019, at an interest rate of 6.8% less unamortized discount of $0.7 and $0.8, respectively	399.3		399.2
Notes payable in 2021, at an interest rate of 4.5% includes ($20.2) and $17.0 fair value of interest rate swap, respectively, less unamortized discount of $2.0 and $2.3, respectively	377.8		414.7
Debt of subsidiary companies	3.9		—
Obligations under capital leases	0.2		0.4
Total debt	1,421.6		1,417.9
Less current portion	0.2		0.3
Total long-term debt	$	1,421.4	$	1,417.6