Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Our business segment information is as follows:

	Year Ended December 31,
(dollars in millions)	2013			2012			2011
Revenue
Wireline	$	724.8		$	730.5		$	732.1
Wireless	201.5			241.8			277.6
IT Services and Hardware	344.1			315.7			300.5
Data Center Colocation	15.6			221.3			184.7
Intersegment	(29.1		)	(35.4		)	(32.5		)
Total revenue	$	1,256.9		$	1,473.9		$	1,462.4
Intersegment revenue
Wireline	$	16.8		$	19.1		$	23.0
Wireless	2.3			2.3			2.3
IT Services and Hardware	9.6			7.6			5.1
Data Center Colocation	0.4			6.4			2.1
Total intersegment revenue	$	29.1		$	35.4		$	32.5
Operating income
Wireline	$	190.2		$	212.9		$	228.5
Wireless	18.2			51.2			3.3
IT Services and Hardware	8.5			10.3			9.8
Data Center Colocation	3.2			30.4			46.4
Corporate	(56.3		)	(34.7		)	(28.5		)
Total operating income	$	163.8		$	270.1		$	259.5
Expenditures for long-lived assets
Wireline	$	162.6		$	114.2		$	112.6
Wireless	16.0			15.8			17.6
IT Services and Hardware	10.6			9.0			6.8
Data Center Colocation	7.7			228.2			118.5
Total expenditures for long-lived assets	$	196.9		$	367.2		$	255.5
Depreciation and amortization
Wireline	$	112.2		$	106.0		$	102.4
Wireless	41.2			31.9			33.5
IT Services and Hardware	10.5			8.6			8.4
Data Center Colocation	5.2			70.6			54.8
Corporate	0.5			0.3			0.4
Total depreciation and amortization	$	169.6		$	217.4		$	199.5
	As of December 31,
(dollars in millions)	2013			2012
Assets
Wireline	$	780.8		$	723.7
Wireless	247.5			275.6
IT Services and Hardware	48.9			43.3
Data Center Colocation	—			1,208.5
Corporate and eliminations	1,030.1			621.3
Total assets	$	2,107.3		$	2,872.4

Revenue from External Customers by Products and Services [Table Text Block]

Details of our service and product revenues including eliminations are as follows:

	Year Ended December 31,
(dollars in millions)	2013		2012		2011
Service revenue
Wireline	$	702.3	$	705.0	$	703.3
Wireless	183.1		222.7		250.8
IT Services and Hardware	138.7		130.2		114.1
Data Center Colocation	15.2		214.9		182.6
Total service revenue	$	1,039.3	$	1,272.8	$	1,250.8
Product revenue
Handsets and accessories	$	21.8	$	23.2	$	30.3
IT, telephony and other equipment	195.8		177.9		181.3
Total product revenue	$	217.6	$	201.1	$	211.6