Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 181.5	$ 4.6
Receivables, less allowances of $12.8 and $12.2	174.1	145.6
Receivable from CyrusOne	8.0	9.2
Inventory, materials and supplies	22.1	23.8
Deferred income taxes, net	65.8	55.3
Prepaid expenses	17.9	11.0
Other current assets	4.8	1.6
Total current assets	474.2	251.1
Property, plant and equipment, net	875.2	902.8
Investment in CyrusOne	284.7	471.0
Goodwill	14.4	14.4
Intangible assets, net	1.6	91.7
Deferred income taxes, net	268.7	339.7
Other noncurrent assets	33.8	36.6
Total assets	1,952.6	2,107.3
Current liabilities
Current portion of long-term debt	11.9	12.6
Accounts payable	132.7	89.4
Payable to CyrusOne	1.3	0.5
Unearned revenue and customer deposits	33.8	32.5
Accrued taxes	18.0	12.9
Accrued interest	33.8	31.6
Accrued payroll and benefits	32.4	38.0
Other current liabilities	160.2	36.8
Total current liabilities	424.1	254.3
Long-term debt, less current portion	1,887.0	2,252.6
Pension and postretirement benefit obligations	174.3	202.7
Other noncurrent liabilities	51.6	74.4
Total liabilities	2,537.0	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 September 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; 209,237,944 and 208,165,275 shares outstanding at September 30, 2014 and December 31, 2013	2.1	2.1
Additional paid-in capital	2,584.7	2,590.6
Accumulated deficit	(3,169.6)	(3,263.5)
Accumulated other comprehensive loss	(129.7)	(133.3)
Common shares in treasury, at cost	(1.3)	(2.0)
Total shareowners' deficit	(584.4)	(676.7)
Total liabilities and shareowners' deficit	$ 1,952.6	$ 2,107.3