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Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
Income Taxes (Narrative) (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Income Taxes [Abstract]
Nondeductible executive compensation	$ 11,000,000	$ 13,000,000	$ 0
Liability for unrecognized tax benefits				17,000,000
Reduced tax expense relating to liability			17,000,000
Net operating losses to carryforward related to prior acquisitions	494,000,000
Valuation allowance	77,000,000
Limitations on deductibility of excess annual employee compensation as mandated by health insurance reforms	$ 500,000	$ 500,000

Reflects the effects of adjustments of previously recorded tax expense, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, IRS tax settlement and unusual repatriation of foreign earnings.

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- Definition

The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.

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