Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Income Taxes (Textual) [Abstract]
Valuation allowance related to tax benefits from stock option deductions	$ 102,000,000
Federal net operating loss carryover related to acquisitions	2,273,400,000
State net operating loss carryover related to acquisitions	1,082,400,000
Tax credits	456,000,000
Income taxes paid, net of refunds received	11,800,000	29,300,000	24,600,000
Decrease in deferred tax asset related to operating loss carryforwards	328,500,000
Benefits of deferred tax assets related to discontinued operation	116,500,000
Percentage reduction in tax rate on profits due to tax holiday	10.00%
Tax savings from income tax holiday	2,000,000	2,100,000	2,000,000
Tax benefit related to refundable R&D credit	(530,000)	0	(3,595,000)
Recognized tax benefits on settlements of tax audits			81,000,000
Settlement of tax audits in foreign jurisdictions, interest and penalties			9,100,000
Unrecognized tax benefits on settlements of tax audits			71,900,000
Cumulative undistributed earnings of various foreign subsidiaries	83,100,000
Unrecognized tax benefits	170,994,000	151,898,000	163,859,000	232,050,000
Unrecognized tax benefits that would impact effective tax rate	171,000,000	151,900,000
Estimated decrease in unrecognized tax benefits, plus accrued interest and penalties	17,700,000
Unrecognized tax benefits, income tax penalties and interest expense	6,300,000	7,700,000	18,600,000
Tax benefit on interest and penalties related to lapses in statutes of limitations and audit settlements	8,600,000	17,700,000	32,000,000
Income tax penalties and accrued interests	29,600,000	31,800,000
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryovers	2,456,400,000
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryovers	1,386,500,000
Foreign [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryovers	$ 152,400,000