Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 7.4	$ 57.9
Receivables, less allowances of $12.4 and $12.4	154.9	160.8
Receivable from CyrusOne	2.2	7.7
Inventory, materials and supplies	20.6	25.0
Prepaid expenses	13.1	10.8
Other current assets	2.2	1.8
Other current assets from discontinued operations	0.0	4.7
Total current assets	200.4	268.7
Property, plant and equipment, net	975.5	815.4
Investment in CyrusOne	55.5	273.6
Goodwill	14.3	14.4
Intangible assets, net	0.2	0.5
Deferred income taxes, net	182.9	369.6
Other noncurrent assets	25.6	33.9
Noncurrent assets from discontinued operations	0.0	44.6
Total assets	1,454.4	1,820.7
Current liabilities
Current portion of long-term debt	13.8	11.6
Accounts payable	127.4	131.6
Payable to CyrusOne	1.5	0.4
Unearned revenue and customer deposits	29.2	30.4
Accrued taxes	14.5	9.9
Accrued interest	11.2	22.1
Accrued payroll and benefits	31.2	37.0
Other current liabilities	25.0	25.8
Other current liabilities from discontinued operations	5.4	142.0
Total current liabilities	259.2	410.8
Long-term debt, less current portion	1,231.8	1,689.4
Pension and postretirement benefit obligations	225.0	240.1
Other noncurrent liabilities	36.6	26.2
Noncurrent liabilities from discontinued operations	0.0	102.7
Total liabilities	1,752.6	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 December 31, 2015 and 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; 210,017,999 and 209,571,138 shares issued; 209,876,949 and 209,296,068 shares outstanding at December 31, 2015 and 2014	2.1	2.1
Additional paid-in capital	2,576.0	2,582.9
Accumulated deficit	(2,834.2)	(3,187.9)
Accumulated other comprehensive loss	(171.0)	(173.9)
Common shares in treasury, at cost	(0.5)	(1.1)
Total shareowners' deficit	(298.2)	(648.5)
Total liabilities and shareowners' deficit	$ 1,454.4	1,820.7
Continuing Operations [Member]
Current liabilities
Other noncurrent liabilities		7.5
Total liabilities		$ 65.6