Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities
Net income	$ 18.6	$ 28.3	$ 89.6
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	199.5	179.5	164.9
Loss on extinguishment of debt	0	46.5	10.3
(Gain) loss on sale of assets	(8.4)	0	4.8
Impairment of goodwill and other assets	52.4	0	0
Provision for loss on receivables	13.9	15.2	22.3
Noncash portion of interest expense	7.7	8.0	3.8
Deferred income tax expense, including valuation allowance change	24.9	38.2	61.0
Pension and other postretirement benefits in excess of expense	(19.5)	(10.7)	(65.6)
Stock-based compensation	4.1	3.3	8.5
Other, net	(3.7)	(3.5)	(2.1)
Changes in operating assets and liabilities, net of effects of acquisitions
Increase in receivables	(10.6)	(26.7)	(16.4)
(Increase) decrease in inventory, materials, supplies, prepaids and other current assets	(5.9)	22.2	(1.7)
Increase (decrease) in accounts payable	19.2	4.6	(6.4)
(Decrease) increase in accrued and other current liabilities	(0.5)	4.0	(16.3)
Decrease (increase) in other noncurrent assets	1.1	(5.4)	9.0
Decrease in other noncurrent liabilities	(2.9)	(3.5)	(0.1)
Net cash provided by operating activities	289.9	300.0	265.6
Cash flows from investing activities
Capital expenditures	(255.5)	(149.7)	(195.1)
Acquisitions of businesses, net of cash acquired	0	(526.7)	(3.4)
Proceeds / deposits from sale of assets	11.5	0	105.9
Other, net	(0.7)	0.9	(1.2)
Net cash used in investing activities	(244.7)	(675.5)	(93.8)
Cash flows from financing activities
Proceeds from issuance of long-term debt	0	2,134.3	492.8
Increase (decrease) in corporate credit and receivables facilities with initial maturities less than 90 days	0.4	(85.9)	(42.1)
Repayment of debt	(11.5)	(1,554.5)	(506.5)
Debt issuance costs and consent fees	(0.8)	(42.6)	(15.3)
Dividends paid on preferred stock	(10.4)	(10.4)	(10.4)
Common stock repurchase	(10.4)	(10.0)	(73.2)
Financing obligations and other, net	(16.1)	(1.1)	(0.8)
Net cash (used in) provided by financing activities	(48.8)	429.8	(155.5)
Net (decrease) increase in cash and cash equivalents	(3.6)	54.3	16.3
Cash and cash equivalents at beginning of year	77.3	23.0	6.7
Cash and cash equivalents at end of year	$ 73.7	$ 77.3	$ 23.0