Income Taxes (Income Tax Uncertainties) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 44.5us-gaap_UnrecognizedTaxBenefits	$ 46.5us-gaap_UnrecognizedTaxBenefits	$ 106.0us-gaap_UnrecognizedTaxBenefits
Additions due to acquisitions	0	0	22.9
Additions for tax positions of the current year	0.5	0.1	0
Additions for tax positions of prior years	2.4	0.7	15.2
Reductions for tax positions of prior years	(5.1)	(0.5)	(76.3)
Settlements during the period	(0.3)	(2.1)	(7.8)
Lapses of applicable statutes of limitations	(10.8)	(0.2)	(13.5)
Foreign exchange and other	(0.1)	0	0
Balance at end of period	31.1us-gaap_UnrecognizedTaxBenefits	44.5us-gaap_UnrecognizedTaxBenefits	46.5us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits that would impact the effective tax rate, if recognized	31.1
Income tax examination, adjustment from settlement			(30.0)
Reduction for uncertain tax positions of prior years			75.7
Adjustments for uncertain income tax positions			46.7
(Interest) expense related to tax uncertainties	0.8	(1.0)	(1.1)
Penalties recognized related to income tax uncertainties	0	(0.2)	0
Resolution of Audits or Statute Expirations [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits reasonably possible will decrease	$ 1.8

Unrecognized Tax Benefits, Increases Resulting from Foreign Currency Translation and Other

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The amount the liability recorded for the income tax examination increased or decreased in the current year/accounting period.

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The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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The estimated upper bound of the reasonably possible change in the total amount of the unrecognized tax benefit (that will significantly increase or decrease within twelve months of the balance sheet date) for a tax position taken.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of expense for penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of increase in unrecognized tax benefits resulting from acquisitions.

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Amount of interest expense for an underpayment of income taxes.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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