Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 13.4	$ 57.9
Receivables, less allowances of $11.6 and $12.4	160.7	160.8
Receivable from CyrusOne	9.6	7.7
Inventory, materials and supplies	19.7	25.0
Deferred income taxes, net	104.3	68.9
Prepaid Expense, Current	14.1	10.8
Other current assets	3.5	1.8
Other current assets from discontinued operations	0.4	4.7
Total current assets	325.7	337.6
Property, plant and equipment, net	845.7	815.4
Investment in CyrusOne	261.5	273.6
Goodwill	14.4	14.4
Intangible assets, net	0.4	0.5
Deferred income taxes, net	236.9	300.7
Other noncurrent assets	32.4	33.9
Other noncurrent assets from discontinued operations	16.0	44.6
Total assets	1,733.0	1,820.7
Current liabilities
Current portion of long-term debt	12.6	11.6
Accounts payable	111.8	131.6
Payable to CyrusOne	1.3	0.4
Unearned revenue and customer deposits	30.8	30.4
Accrued taxes	10.2	9.9
Accrued interest	32.1	22.1
Accrued payroll and benefits	28.2	37.0
Other current liabilities	25.9	25.8
Other current liabilities from discontinued operations	26.5	142.0
Total current liabilities	279.4	410.8
Long-term debt, less current portion	1,748.8	1,689.4
Pension and postretirement benefit obligations	233.9	240.1
Other noncurrent liabilities	39.3	26.2
Noncurrent liabilities from discontinued operations	31.2	102.7
Total liabilities	2,332.6	2,469.2
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 March 31, 2015 and December 31, 2014; liquidation preference $1,000 per share ($50 per depositary share)	129.4	129.4
Common shares, $.01 par value; 480,000,000 shares authorized; 209,840,204 and 209,571,138 shares issued; 209,565,134 and 209,296,068 shares outstanding at March 31, 2015 and December 31, 2014	2.1	2.1
Additional paid-in capital	2,581.2	2,582.9
Accumulated deficit	(3,138.7)	(3,187.9)
Accumulated other comprehensive loss	(172.5)	(173.9)
Common shares in treasury, at cost	(1.1)	(1.1)
Total shareowners' deficit	(599.6)	(648.5)
Total liabilities and shareowners' deficit	$ 1,733.0	$ 1,820.7