Financial Instruments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping [Table Text Block]

The carrying and fair values of these financial instruments are as follows:

	March 31, 2016				December 31, 2015
(dollars in millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
Investment in CyrusOne	$	52.8	$	314.4	$	55.5	$	257.9
Long-term debt, including current portion*	1,175.7		1,169.2		1,178.0		1,155.6
*Excludes capital leases and note issuance costs.