Guarantor Condensed Consolidated Financial Statements Condensed Consolidating Statements of Cash Flows (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 120.1	$ 275.2		$ 10.7
Depreciation and Amortization	266.8	278.4		288.7
Goodwill Impairment	0	96.3	[1]	0
Write off of Deferred Debt Issuance Cost	7.5	2.1		1.4
Amortization of Deferred Debt Issuance Costs	6.2	7.0		8.3
Deferred Income Taxes	76.0	(238.4)		21.6
Amount of Postretirement Expense Less Than Funding	(14.0)	(38.8)		(18.2)
Impairment Charges/Asset Write-offs	5.6	7.0		14.6
Equity in Net Earnings of Subsidiaries	0	0		0
Other, Net	17.5	21.9		9.1
Changes in Operating Assets and Liabilities	(17.1)	(20.8)		3.3
Net Cash Provided by Operating Activities	468.6	387.8		338.1
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital Spending	(203.3)	(160.1)		(122.8)
Payments to Acquire Businesses, Net of Cash Acquired	(118.4)	(51.9)		0
Cash Acquired from Acquisition	13.1	0		0
Proceeds from Sales of Assets, Net of Selling Costs	18.8	2.3		0
Other, Net	(4.2)	(2.1)		0.1
Net Cash Used in Investing Activities	(294.0)	(211.8)		(122.7)
Proceeds from Issuance of Senior Long-term Debt	1,300.0	0		30.6
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Proceeds from Issuance of Common Stock	0	237.7		0
Repurchase of Common Stock	(300.0)	(32.9)		0
Payments on Debt	(1,703.4)	(249.2)		(246.4)
Borrowings under Revolving Credit Facilities	(1,367.2)	(92.1)		(138.8)
Payments on Revolving Credit Facilities	(1,034.7)	(89.6)		(139.7)
Payments of Debt Issuance Costs	(27.7)
Payments for Repurchase of Common Stock, Related to Share-Based Compensation	(10.7)	0		0
Proceeds from (Payments for) Other Financing Activities	13.2	(0.3)		0.2
Redemption and Early Tender Premiums and Debt Issuance Costs	(27.7)	0		(10.9)
Net Cash Used in Financing Activities	(396.1)	(42.2)		(227.4)
Effect of Exchange Rate on Cash and Cash Equivalents	1.2	(0.7)		0.9
Net Increase (Decrease) in Cash and Cash Equivalents	(220.3)	133.1		(11.1)
Cash and Cash Equivalents at Beginning of Period	271.8	138.7		149.8
CASH AND CASH EQUIVALENTS AT END OF PERIOD	51.5	271.8		138.7
Parent
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	120.1	275.2		10.7
Depreciation and Amortization	0	0		0
Goodwill Impairment		0
Write off of Deferred Debt Issuance Cost	0
Amortization of Deferred Debt Issuance Costs	0	0		0
Deferred Income Taxes	0	0		0
Amount of Postretirement Expense Less Than Funding	0	0		0
Impairment Charges/Asset Write-offs	0	0		0
Equity in Net Earnings of Subsidiaries	(120.1)	(275.2)		(10.7)
Other, Net	0	0		0
Changes in Operating Assets and Liabilities	0	0		0
Net Cash Provided by Operating Activities	0	0		0
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital Spending	0	0		0
Payments to Acquire Businesses, Net of Cash Acquired	0	0
Cash Acquired from Acquisition	0
Proceeds from Sales of Assets, Net of Selling Costs	0	0
Other, Net	310.7	(204.8)		0
Net Cash Used in Investing Activities	310.7	(204.8)		0
Proceeds from Issuance of Senior Long-term Debt	0			0
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Proceeds from Issuance of Common Stock		237.7
Repurchase of Common Stock	(300.0)	(32.9)
Payments on Debt	0	0		0
Borrowings under Revolving Credit Facilities	0	0		0
Payments on Revolving Credit Facilities	0	0		0
Payments of Debt Issuance Costs	0
Payments for Repurchase of Common Stock, Related to Share-Based Compensation	(10.7)
Proceeds from (Payments for) Other Financing Activities	0	0		0
Redemption and Early Tender Premiums and Debt Issuance Costs				0
Net Cash Used in Financing Activities	(310.7)	204.8		0
Effect of Exchange Rate on Cash and Cash Equivalents	0	0		0
Net Increase (Decrease) in Cash and Cash Equivalents	0	0		0
Cash and Cash Equivalents at Beginning of Period	0	0		0
CASH AND CASH EQUIVALENTS AT END OF PERIOD	0	0		0
Subsidiary Issuer
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	120.1	275.2		10.7
Depreciation and Amortization	224.8	250.7		263.1
Goodwill Impairment		0
Write off of Deferred Debt Issuance Cost	7.5
Amortization of Deferred Debt Issuance Costs	6.2	7.0		8.3
Deferred Income Taxes	76.0	(227.2)		21.9
Amount of Postretirement Expense Less Than Funding	(12.0)	(34.2)		(16.0)
Impairment Charges/Asset Write-offs	5.4	6.7		7.6
Equity in Net Earnings of Subsidiaries	16.5	63.0		(36.9)
Other, Net	23.3	20.9		9.1
Changes in Operating Assets and Liabilities	(12.6)	(1.2)		54.5
Net Cash Provided by Operating Activities	455.2	360.9		322.3
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital Spending	(171.6)	(142.7)		(111.9)
Payments to Acquire Businesses, Net of Cash Acquired	(118.4)	(51.9)
Cash Acquired from Acquisition	0
Proceeds from Sales of Assets, Net of Selling Costs	18.8	2.3
Other, Net	(4.2)	(28.0)		0.1
Net Cash Used in Investing Activities	(275.4)	(220.3)		(111.8)
Proceeds from Issuance of Senior Long-term Debt	1,300.0			29.4
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Proceeds from Issuance of Common Stock		0
Repurchase of Common Stock	0	0
Payments on Debt	(1,703.4)	(223.3)		(246.4)
Borrowings under Revolving Credit Facilities	(1,310.9)	30.0		(82.4)
Payments on Revolving Credit Facilities	(985.1)	(30.0)		(82.4)
Payments of Debt Issuance Costs	(27.7)
Payments for Repurchase of Common Stock, Related to Share-Based Compensation	0
Proceeds from (Payments for) Other Financing Activities	(297.5)	204.5		0.2
Redemption and Early Tender Premiums and Debt Issuance Costs				(10.9)
Net Cash Used in Financing Activities	(402.8)	(18.8)		(227.7)
Effect of Exchange Rate on Cash and Cash Equivalents	0	0		0
Net Increase (Decrease) in Cash and Cash Equivalents	(223.0)	121.8		(17.2)
Cash and Cash Equivalents at Beginning of Period	228.9	107.1		124.3
CASH AND CASH EQUIVALENTS AT END OF PERIOD	5.9	228.9		107.1
Combined Guarantor Subsidiaries
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	4.3	11.2		8.1
Depreciation and Amortization	4.2	2.7		2.2
Goodwill Impairment		0
Write off of Deferred Debt Issuance Cost	0
Amortization of Deferred Debt Issuance Costs	0	0		0
Deferred Income Taxes	0	(11.7)		(0.3)
Amount of Postretirement Expense Less Than Funding	0	(0.3)		0
Impairment Charges/Asset Write-offs	0	0		2.1
Equity in Net Earnings of Subsidiaries	1.2	(2.7)		(0.7)
Other, Net	0	0		0
Changes in Operating Assets and Liabilities	(8.4)	1.4		(10.4)
Net Cash Provided by Operating Activities	1.3	0.6		1.0
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital Spending	(1.3)	(0.6)		(1.0)
Payments to Acquire Businesses, Net of Cash Acquired	0	0
Cash Acquired from Acquisition	0
Proceeds from Sales of Assets, Net of Selling Costs	0	0
Other, Net	0	0		0
Net Cash Used in Investing Activities	(1.3)	(0.6)		(1.0)
Proceeds from Issuance of Senior Long-term Debt	0			0
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Proceeds from Issuance of Common Stock		0
Repurchase of Common Stock	0	0
Payments on Debt	0	0		0
Borrowings under Revolving Credit Facilities	0	0		0
Payments on Revolving Credit Facilities	0	0		0
Payments of Debt Issuance Costs	0
Payments for Repurchase of Common Stock, Related to Share-Based Compensation	0
Proceeds from (Payments for) Other Financing Activities	0	0		0
Redemption and Early Tender Premiums and Debt Issuance Costs				0
Net Cash Used in Financing Activities	0	0		0
Effect of Exchange Rate on Cash and Cash Equivalents	0	0		0
Net Increase (Decrease) in Cash and Cash Equivalents	0	0		0
Cash and Cash Equivalents at Beginning of Period	0	0		0
CASH AND CASH EQUIVALENTS AT END OF PERIOD	0	0		0
Combined Nonguarantor Subsidiaries
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	(22.0)	(71.5)		29.5
Depreciation and Amortization	37.8	25.0		23.4
Goodwill Impairment		96.3
Write off of Deferred Debt Issuance Cost	0
Amortization of Deferred Debt Issuance Costs	0	0		0
Deferred Income Taxes	0	0.5		0
Amount of Postretirement Expense Less Than Funding	(2.0)	(4.3)		(2.2)
Impairment Charges/Asset Write-offs	0.2	0.3		4.9
Equity in Net Earnings of Subsidiaries	0	0		0
Other, Net	(5.8)	1.0		0
Changes in Operating Assets and Liabilities	3.9	(21.0)		(40.8)
Net Cash Provided by Operating Activities	12.1	26.3		14.8
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital Spending	(30.4)	(16.8)		(9.9)
Payments to Acquire Businesses, Net of Cash Acquired	0	0
Cash Acquired from Acquisition	13.1
Proceeds from Sales of Assets, Net of Selling Costs	0	0
Other, Net	0	0		0
Net Cash Used in Investing Activities	(17.3)	(16.8)		(9.9)
Proceeds from Issuance of Senior Long-term Debt	0			1.2
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Proceeds from Issuance of Common Stock		0
Repurchase of Common Stock	0	0
Payments on Debt	0	(25.9)		0
Borrowings under Revolving Credit Facilities	(56.3)	(62.1)		(56.4)
Payments on Revolving Credit Facilities	(49.6)	(59.6)		(57.3)
Payments of Debt Issuance Costs	0
Payments for Repurchase of Common Stock, Related to Share-Based Compensation	0
Proceeds from (Payments for) Other Financing Activities	0	25.9		0
Redemption and Early Tender Premiums and Debt Issuance Costs				0
Net Cash Used in Financing Activities	6.7	2.5		0.3
Effect of Exchange Rate on Cash and Cash Equivalents	1.2	(0.7)		0.9
Net Increase (Decrease) in Cash and Cash Equivalents	2.7	11.3		6.1
Cash and Cash Equivalents at Beginning of Period	42.9	31.6		25.5
CASH AND CASH EQUIVALENTS AT END OF PERIOD	45.6	42.9		31.6
Consolidating Eliminations
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	(102.4)	(214.9)		(48.3)
Depreciation and Amortization	0	0		0
Goodwill Impairment		0
Write off of Deferred Debt Issuance Cost	0
Amortization of Deferred Debt Issuance Costs	0	0		0
Deferred Income Taxes	0	0		0
Amount of Postretirement Expense Less Than Funding	0	0		0
Impairment Charges/Asset Write-offs	0	0		0
Equity in Net Earnings of Subsidiaries	102.4	214.9		48.3
Other, Net	0	0		0
Changes in Operating Assets and Liabilities	0	0		0
Net Cash Provided by Operating Activities	0	0		0
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital Spending	0	0		0
Payments to Acquire Businesses, Net of Cash Acquired	0	0
Cash Acquired from Acquisition	0
Proceeds from Sales of Assets, Net of Selling Costs	0	0
Other, Net	(310.7)	230.7		0
Net Cash Used in Investing Activities	(310.7)	230.7		0
Proceeds from Issuance of Senior Long-term Debt	0			0
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Proceeds from Issuance of Common Stock		0
Repurchase of Common Stock	0	0
Payments on Debt	0	0		0
Borrowings under Revolving Credit Facilities	0	0		0
Payments on Revolving Credit Facilities	0	0		0
Payments for Repurchase of Common Stock, Related to Share-Based Compensation	0
Proceeds from (Payments for) Other Financing Activities	310.7	(230.7)		0
Redemption and Early Tender Premiums and Debt Issuance Costs				0
Net Cash Used in Financing Activities	310.7	(230.7)		0
Effect of Exchange Rate on Cash and Cash Equivalents	0	0		0
Net Increase (Decrease) in Cash and Cash Equivalents	0	0		0
Cash and Cash Equivalents at Beginning of Period	0	0		0
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 0	$ 0		$ 0

[1] Goodwill impairment recorded in 2011 also represents all accumulated goodwill impairment losses.