Deductions claimed and federal income tax savings realized in subsequent years related to the leveraged ESOP Transactions.

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Federal income tax deductions claimed by the Company with respect to the Leveraged ESOP Transactions.

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Federal income tax savings realized in subsequent years related to the leveraged ESOP Transactions.

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Federal tax savings realized with respect to the Leveraged ESOP Transactions.

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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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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 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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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, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Income Taxes (Textuals) [Abstract]
Effective tax rate	30.30%	29.90%	29.70%	32.80%
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
Tax positions amount included in balance of unrecognized tax benefits					6.0
Accrued income tax interest and penalties					10.2
Federal income tax deductions claimed by company with respect to Leveraged ESOP Transactions 2004 through 2007 years for income taxes	418.7		418.7
Federal tax savings realized with respect to the Leveraged ESOP Transactions on August 27, 2003 and August 1, 2006	146.5		146.5
Deductions claimed in subsequent years related to the leveraged ESOP Transactions	99.2		99.2
Federal income tax savings realized in subsequent years related to the Leveraged ESOP Transactions 2004 through 2007 years	$ 34.7		$ 34.7