Plant, Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

	September 30,			December 31,
(dollars in millions)	2018			2017
Land and rights-of-way	$	117.3		$	4.3
Buildings and leasehold improvements	304.3			179.1
Network equipment	3,849.3			3,339.4
Office software, furniture, fixtures and vehicles	210.8			162.5
Construction in process	48.5			14.7
Gross value	4,530.2			3,700.0
Accumulated depreciation	(2,699.2		)	(2,571.0		)
Property, plant and equipment, net	$	1,831.0		$	1,129.0