CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME Parenthetical (Parentheticals) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Statement of Income and Comprehensive Income [Abstract]
Cumulative translation adjustment tax	$ 0.6	$ 8.3	$ 0.3
Derivative hedging adjustment tax	0.8	(0.5)	5.0
Debt and equity securities adjustment tax	55.6	(55.7)	0
Pension liability adjustment, Net gain (loss) tax	11.8	(2.4)	5.2
Pension liability adjustment, Amortization of actuarial gain (loss) tax	(1.3)	(0.9)	(1.4)
Pension liability adjustment, Foreign exchange and other effects tax	$ (0.2)	$ (8.5)	$ 14.2

Tax effect of the gross appreciation or the gross loss, net of reclassification adjustment, in the value of the total unsold available-for-sale securities at the end of an accounting period.

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Tax effect on the accumulated change in the value of either the projected benefit obligation or plan assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost.

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- Definition

Total tax effect of the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. The change includes an entity's share of an equity investee's increase or decrease in deferred hedging gains or losses. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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- Definition

Tax effect of the adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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- Definition

For each annual statement of income presented, the tax effect of the net gain (loss) recognized in other comprehensive income that is a reclassification adjustment of other comprehensive income as a result of being recognized as a component of net periodic benefit cost for the period.

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