Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Our business segment information is as follows:

	Year Ended December 31,
(dollars in millions)	2012			2011			2010
Revenue
Wireline	$	730.5		$	732.1		$	742.5
Wireless	241.8			277.6			289.2
Data Center Colocation	221.3			184.7			125.3
IT Services and Hardware	315.7			300.5			254.7
Intersegment	(35.4		)	(32.5		)	(34.7		)
Total revenue	$	1,473.9		$	1,462.4		$	1,377.0
Intersegment revenue
Wireline	$	19.1		$	23.0		$	24.4
Wireless	2.3			2.3			2.6
Data Center Colocation	6.4			2.1			1.8
IT Services and Hardware	7.6			5.1			5.9
Total intersegment revenue	$	35.4		$	32.5		$	34.7
Operating income (loss)
Wireline	$	212.9		$	228.5		$	233.5
Wireless	51.2			3.3			56.3
Data Center Colocation	30.4			46.4			34.2
IT Services and Hardware	10.3			9.8			4.3
Corporate	(34.7		)	(28.5		)	(29.0		)
Total operating income	$	270.1		$	259.5		$	299.3
Expenditures for long-lived assets
Wireline	$	114.2		$	112.6		$	98.7
Wireless	15.8			17.6			11.7
Data Center Colocation	228.2			118.5			557.4
IT Services and Hardware	9.0			6.8			8.6
Total expenditures for long-lived assets	$	367.2		$	255.5		$	676.4
Depreciation and amortization
Wireline	$	106.0		$	102.4		$	103.9
Wireless	31.9			33.5			33.4
Data Center Colocation	70.6			54.8			34.6
IT Services and Hardware	8.6			8.4			7.3
Corporate	0.3			0.4			0.3
Total depreciation and amortization	$	217.4		$	199.5		$	179.5
	As of December 31,
(dollars in millions)	2012			2011			2010
Assets
Wireline	$	723.7		$	713.6		$	694.1
Wireless	275.6			295.2			359.3
Data Center Colocation	1,208.5			964.0			857.2
IT Services and Hardware	43.3			36.6			34.7
Corporate and eliminations	621.3			705.3			708.3
Total assets	$	2,872.4		$	2,714.7		$	2,653.6

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)	2012		2011		2010
Service revenue
Wireline	$	705.0	$	703.3	$	710.9
Wireless	222.7		250.8		267.1
Data Center Colocation	214.9		182.6		123.5
IT Services and Hardware	130.2		114.1		97.8
Total service revenue	$	1,272.8	$	1,250.8	$	1,199.3
Product revenue
Handsets and accessories	$	23.2	$	30.3	$	19.5
IT, telephony and other equipment	177.9		181.3		158.2
Total product revenue	$	201.1	$	211.6	$	177.7

Reconciliation to Cash Flow Statement [Table Text Block]

The reconciliation of the Consolidated Statements of Cash Flows to expenditures for long-lived assets is as follows:

	Year Ended December 31,
(dollars in millions)	2012		2011		2010
Per Consolidated Statements of Cash Flows:
Capital expenditures	$	367.2	$	255.5	$	149.7
Acquisitions of businesses, net of cash acquired	—		—		526.7
Total expenditures for long-lived assets	$	367.2	$	255.5	$	676.4