Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

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

The scheduled maturities of the Company's long-term debt obligations for the next five years as of December 31, 2016, are as follows:

Year	Dollars (in millions)
2017	$	221.3
2018	1.7
2019	403.7
2020	1.7
2021	401.7

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

Debt consisted of the following at December 31,

(dollars in millions)	2016			2015
Commercial paper payable	$	221.3		$	329.5
6.8% notes payable in 2019	400.0			400.0
4.5% notes payable in 2021	400.0			400.0
Notes payable in 2022	200.0			200.0
3.1% notes payable in 2026	300.0			—
Other debt, including debt of subsidiaries	14.7			30.5
Interest rate swap of 2021 notes (See Note 8)	1.3			5.2
Unamortized discounts and debt issuance costs	(7.5		)	(5.5		)
Total debt	1,529.8			1,359.7
Less current portion	2.0			5.8
Total long-term debt	$	1,527.8		$	1,353.9