Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue
Services	$ 999.6	$ 1,039.3	$ 1,272.8
Products	278.6	217.6	201.1
Total revenue	1,278.2	1,256.9	1,473.9
Costs and expenses
Cost of services, excluding items below	454.2	430.4	492.2
Cost of products sold, excluding items below	244.9	215.9	204.7
Selling, general and administrative	223.1	220.8	269.5
Depreciation and amortization	231.0	169.6	217.4
Restructuring charges	15.9	13.7	3.4
Transaction-related compensation	0	42.6	0
Curtailment gain	0	(0.6)	0
(Gain) loss on sale or disposal of assets, net	(0.3)	2.4	(1.6)
Amortization of deferred gain	(22.9)	(3.3)	(2.3)
Impairment of assets	12.1	0	14.2
Transaction costs	4.4	1.6	6.3
Total operating costs and expenses	1,162.4	1,093.1	1,203.8
Operating income	115.8	163.8	270.1
Interest expense	148.7	182.0	218.9
Loss on extinguishment of debt	19.6	29.6	13.6
Loss from CyrusOne equity method investment	7.0	10.7	0
Gain on sale of CyrusOne equity method investment	(192.8)	0	0
Other expense (income), net	0.3	(1.3)	1.7
Income (loss) before income taxes	133.0	(57.2)	35.9
Income tax expense (benefit)	57.4	(2.5)	24.7
Net income (loss)	75.6	(54.7)	11.2
Preferred stock dividends	10.4	10.4	10.4
Net income (loss) applicable to common shareowners	$ 65.2	$ (65.1)	$ 0.8
Basic and diluted earnings (loss) per common share	$ 0.31	$ (0.32)	$ 0.00
Earnings Per Share, Basic	$ 0.31
Weighted-average common shares outstanding - basic	208.5	205.9	197.0
Weighted-average common shares outstanding - diluted	209.6	205.9	204.7