After-tax settlement charge related to federal and state income taxes.

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Income taxes.

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One-time increase in income taxes related to health care legislation.

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Per diluted share after-tax settlement charge related to federal and state income taxes.

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A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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The tax effects of employee stock option transactions that are recognized differently for financial reporting and tax purposes, occurring during the period and charged or credited directly to shareholders' equity.

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The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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-Publisher FASB

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

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

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Income Taxes (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Income Taxes (Textual) [Abstract]
Effective tax rate	30.90%	31.40%	30.20%	32.10%
Decrease in the effective tax rate related to the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act				$ 11.4
Unrecognized tax benefits					31.3
Unrecognized tax benefits adjusted					27.4
Amount of unrecognized tax benefits where significant change is reasonably possible					6.0
Accrued income tax interest and penalties					10.2
After-tax charge related to federal and state income taxes			75.0
Per diluted share after-tax charge related to federal and state income taxes			$ 0.72
Additional reduction in Shareholders' equity			$ 51.2