Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income (loss) from continuing operations:
United States		$ 474.1	$ 212.7	$ (223.6)
Foreign		120.1	58.9	44.2
Income (loss) from continuing operations before income taxes		594.2	271.6	(179.4)
Current:
United States		(261.7)us-gaap_CurrentFederalTaxExpenseBenefit	65.5us-gaap_CurrentFederalTaxExpenseBenefit	(1.4)us-gaap_CurrentFederalTaxExpenseBenefit
Foreign		(34.1)us-gaap_CurrentForeignTaxExpenseBenefit	(30.0)us-gaap_CurrentForeignTaxExpenseBenefit	(20.9)us-gaap_CurrentForeignTaxExpenseBenefit
Total current		(295.8)us-gaap_CurrentIncomeTaxExpenseBenefit	35.5us-gaap_CurrentIncomeTaxExpenseBenefit	(22.3)us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred and other:
United States		111.2	(123.9)	1.2
Foreign		(29.5)	28.1	35.3
Total deferred and other		81.7us-gaap_DeferredIncomeTaxExpenseBenefit	(95.8)us-gaap_DeferredIncomeTaxExpenseBenefit	36.5us-gaap_DeferredIncomeTaxExpenseBenefit
Total (provision) benefit	(29.7)us-gaap_IncomeTaxExpenseBenefit	(214.1)us-gaap_IncomeTaxExpenseBenefit	(60.3)us-gaap_IncomeTaxExpenseBenefit	14.2us-gaap_IncomeTaxExpenseBenefit
Reconciliation of the U.S. federal statutory tax rate to effective income tax rate
Tax at U.S. federal statutory rate (as a percent)		35.00%	35.00%	35.00%
State and local taxes, net of U.S. federal benefit (as a percent)		1.80%	1.50%	(0.50%)
U.S. credits and exemptions (as a percent)		(1.60%)	(3.90%)	2.80%
Foreign earnings taxed at lower rates (as a percent)		(2.30%)	(10.70%)	14.00%
Audit settlements with taxing authorities (as a percent)		(2.00%)	0.20%	15.40%
Adjustments to uncertain tax positions (as a percent)		(2.10%)	0.80%	(3.00%)
Changes in valuation allowance (as a percent)		6.20%	(0.20%)	(6.20%)
Tax on repatriation of foreign earnings (as a percent)		2.70%	(0.50%)	(8.40%)
Goodwill impairment and basis adjustments (as a percent)		(1.00%)		(41.80%)
Other (as a percent)		(0.70%)		0.60%
Effective Income Tax Rate Reconciliation, Percent, Total		36.00%	22.20%	7.90%
Deferred tax assets:
NOL and credit carryforwards	266.2	266.2	229.8
Pension, other postretirement and postemployment benefits	116.9	116.9	95.5
Payroll and compensation	67.5	67.5	63.5
Legal, environmental and self-insurance accruals	45.8	45.8	42.3
Working capital accruals	34.7	34.7	26.8
Other	47.5us-gaap_DeferredTaxAssetsOther	47.5us-gaap_DeferredTaxAssetsOther	45.1us-gaap_DeferredTaxAssetsOther
Total deferred tax assets	578.6us-gaap_DeferredTaxAssetsGross	578.6us-gaap_DeferredTaxAssetsGross	503.0us-gaap_DeferredTaxAssetsGross
Valuation allowance	(152.9)	(152.9)	(149.3)
Net deferred tax assets	425.7us-gaap_DeferredTaxAssetsNet	425.7us-gaap_DeferredTaxAssetsNet	353.7us-gaap_DeferredTaxAssetsNet
Deferred tax liabilities:
Intangibles recorded in acquisitions	277.3	277.3	285.9
Basis difference in affiliates	184.2	184.2	152.1
Accelerated depreciation	64.8	64.8	69.3
Other	36.5us-gaap_DeferredTaxLiabilitiesOther	36.5us-gaap_DeferredTaxLiabilitiesOther	25.8us-gaap_DeferredTaxLiabilitiesOther
Total deferred tax liabilities	562.8us-gaap_DeferredTaxLiabilities	562.8us-gaap_DeferredTaxLiabilities	533.1us-gaap_DeferredTaxLiabilities
Deferred tax assets (liabilities), net	$ (137.1)us-gaap_DeferredTaxAssetsLiabilitiesNet	$ (137.1)us-gaap_DeferredTaxAssetsLiabilitiesNet	$ (179.4)us-gaap_DeferredTaxAssetsLiabilitiesNet

The tax effects as of the balance sheet date of the amount of excesses of tax deductions over taxable income in a year which cannot be used on the tax returns in the current year but may be carried forward to reduce taxable income or income taxes payable in a future year in certain jurisdictions and the tax effects arising from all unused tax credits available to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

No definition available.