Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 347.2	$ 4.6
Receivables, less allowances of $11.5 and $12.2	162.0	145.6
Receivable from CyrusOne	8.0	9.2
Inventory, materials and supplies	16.8	23.8
Deferred income taxes, net	61.0	55.3
Prepaid expenses	12.6	11.0
Other current assets	0.7	1.6
Total current assets	608.3	251.1
Property, plant and equipment, net	874.7	902.8
Investment in CyrusOne	290.7	471.0
Goodwill	14.4	14.4
Intangible assets, net	90.5	91.7
Deferred income taxes, net	259.5	339.7
Other noncurrent assets	38.8	36.6
Total assets	2,176.9	2,107.3
Current liabilities
Current portion of long-term debt	12.1	12.6
Accounts payable	105.1	89.4
Payable to CyrusOne	0.3	0.5
Unearned revenue and customer deposits	31.4	32.5
Accrued taxes	16.6	12.9
Accrued interest	31.5	31.6
Accrued payroll and benefits	37.4	38.0
Other current liabilities	36.2	36.8
Total current liabilities	270.6	254.3
Long-term debt, less current portion	2,214.2	2,252.6
Pension and postretirement benefit obligations	185.4	202.7
Other noncurrent liabilities	62.7	74.4
Total liabilities	2,732.9	2,784.0
Shareowners' deficit
Preferred stock, 2,357,299 shares authorized, 155,250 shares (3,105,000 depositary shares) of 6 3/4% Cumulative Convertible Preferred Stock issued and outstanding at June 30, 2014 and December 31, 2013; liquidation preference $1,000 per share ($50 per depositary share)	129.4	129.4
Common shares, $.01 par value; 480,000,000 shares authorized; 209,556,709 and 208,656,995 shares issued; 209,101,069 and 208,165,275 shares outstanding at June 30, 2014 and December 31, 2013	2.1	2.1
Additional paid-in capital	2,587.5	2,590.6
Accumulated deficit	(3,142.3)	(3,263.5)
Accumulated other comprehensive loss	(130.9)	(133.3)
Common shares in treasury, at cost	(1.8)	(2.0)
Total shareowners' deficit	(556.0)	(676.7)
Total liabilities and shareowners' deficit	$ 2,176.9	$ 2,107.3