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Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Consolidated Statements Of Changes In Stockholders' Equity [Abstract]
Amortization of treasury locks, tax effect	$ 0.7	$ 0.5
Settlement of treasury locks, tax effect	3.9
Unrealized losses on treasury locks, tax effect	19.3	1.9
Amortization of net loss on foreign currency exchange contracts, tax effect	0.03
Unrealized losses on foreign currency exchange contracts, tax effect	0.1	0.4
Amortization of unfunded employee benefit obligations, tax effect	2.4	2.3	2.2
Unfunded employee benefit obligations, tax effect	$ 20.3	$ 5.7	$ 0.5

X

- Definition

Represents the tax effect of the reclassification adjustment for accumulated gains and losses from foreign currency exchange contracts designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period.

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No definition available.

+ Details

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X

- Definition

The tax effect of the reclassification adjustment for accumulated gains and losses from interest rate derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period.

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No definition available.

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X

- Definition

The tax effect of the adjustment out of other comprehensive income for prior service costs and net loss recognized as a component of net periodic benefit cost during the period, after tax.

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No definition available.

+ Details

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X

- Definition

Represents the accumulated change in the value of either the projected benefit obligation or the plans assets resulting from experience different from that assumed, from a change in an actuarial assumption, or from a plan amendment that has not been recognized in net periodic benefit cost pursuant to FAS 87 and 106, tax effect.

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No definition available.

+ Details

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X

- Definition

Represents the tax effect of the settlement of the treasury lock.

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No definition available.

+ Details

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X

- Definition

The tax effect of the change in accumulated unrealized gains and losses from foreign currency derivative instruments designated and qualifying as the effective portion of cash flow hedges.

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No definition available.

+ Details

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- Definition

The tax effect of the change in accumulated unrealized gains and losses from interest rate derivative instruments designated and qualifying as the effective portion of cash flow hedges.

+ References

No definition available.

+ Details

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- Details

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