Income Taxes (Unrecognized Tax Benefit) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefit - Beginning balance	$ 66.1	$ 79.4	$ 64.4
Gross Increases - Tax Positions in Prior Period	2.1	4.7	0.5
Gross Decreases - Tax Positions in Prior Period	(4.9)	(10.3)	(0.3)
Gross Increases - Tax Positions in Current Period	8.0	14.2	11.8
Gross Increases - Business Combinations	0	0	3.0
Settlements	(0.3)	0	(0.4)
Lapse of Statute of Limitations	(11.4)	(22.9)	(1.8)
Foreign Currency Translation	(0.8)	1.0	2.2
Unrecognized Tax Benefit - Ending Balance	$ 58.8	$ 66.1	$ 79.4

Unrecognized Tax Benefits, Increase Resulting from Business Combinations

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Unrecognized Tax Benefits Increase Resulting From Foreign Currency Translation

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- Definition

The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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