Income Taxes (Operating Loss and Tax Credit Carryforwards) (Details) (USD $) In Millions, unless otherwise specified			12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 United States [Member]	Dec. 31, 2011 State and Local Jurisdiction [Member]	Dec. 31, 2011 Non-U.S. [Member]
U.S. Federal net operating loss carryforwards	$ 1,002.9	$ 1,075.4	$ 1,613.1
U.S. Federal credit carryforwards			85.4
U.S. State net operating loss carryforwards				3,342.1
Non-U.S. net operating loss carryforwards					1,124.7
Non-U.S. credit carryforwards					$ 8.9
Net operating loss carryforwards, expiration period			2012-2031	2012-2031	2012-Unlimited
Tax credit carryforwards, expiration period			2014-2031		Unlimited

The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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The tax effect as of the balance sheet date of the amount of excess of tax deductions over gross income in a year which cannot be used on the tax return of a country outside the country of domicile in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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- Definition

The tax effect as of the balance sheet date of the amount of excess of tax deductions over gross income in a year which cannot be used on the tax return of a state or local jurisdiction in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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- Definition

The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

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- Definition

The tax effect as of the balance sheet date of the amount of future tax effects arising from unused foreign tax credit carryforwards which will decrease future taxable income if applied in future years; a tax credit carryforward is the amount by which tax credits available for utilization exceeded statutory limits on inclusion in historical filings, and which can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow such utilization.

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