Income Taxes From Continuing Operations (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Tax Credit Carryforward [Line Items]
Net deferred tax assets	$ 1,645,800,000	$ 1,241,700,000
Net discrete tax benefits	59,000,000	12,000,000	97,000,000
Net discrete tax benefits basis points	240	60	730
Net discrete tax benefits per diluted share	$ 0.08	$ 0.02	$ 0.15
Effective tax rate	20.90%	22.90%	18.00%
Income tax payments	303,000,000	282,000,000	283,000,000
Income taxes related to the gain on the sale	126,000,000
Tax deductions attributable to stock-based compensation	25,000,000	57,000,000	53,000,000
Net operating loss carryforwards	337,000,000
Operating loss carryforwards, valuation allowances	316,000,000
Deferred tax assets, valuation allowance	316,600,000	283,900,000
Gross unrecognized tax benefits	518,300,000	517,500,000	439,300,000	446,900,000
Unrecognized tax benefits, net of offsetting indirect tax benefits	451,000,000	402,000,000
Potential interest and penalties	129,000,000	84,000,000
Recognized potential interest and penalties	56,000,000	25,000,000	18,000,000
Estimated reduction in unrecognized tax benefits within twelve months	53,000,000
Cash and equivalents	537,001,000	1,632,980,000	1,721,920,000	392,854,000
Income tax provision	512,562,000	511,376,000	239,018,000
Statutory federal income tax rate	35.00%	35.00%	35.00%
Operating Loss Carryforwards, Expiration Dates	2012 through 2031
U.S. Entities [Member]
Tax Credit Carryforward [Line Items]
Net deferred tax liabilities	1,075,000,000	528,000,000
Non U.S. Entities [Member]
Tax Credit Carryforward [Line Items]
Net deferred tax assets	13,000,000	172,000,000
Outside The U.S. [Member]
Tax Credit Carryforward [Line Items]
Cash and equivalents	523,000,000
General Business And Foreign Tax Credit [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforward, valuation allowance	1,000,000
Tax credit carryforwards	210,000,000
Indirect Impact Of Certain Unrecognized Tax Benefits [Member]
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	140,000,000
Investments In Foreign Subsidiaries And Foreign Corporate Joint Ventures That Are Essentially Permanent In Duration [Member]
Tax Credit Carryforward [Line Items]
Undistributed earnings from foreign subsidiaries	7,800,000,000	6,500,000,000
Attributable To Discontinued Operations [Member]
Tax Credit Carryforward [Line Items]
Income tax payments	129,000,000
Income tax provision	$ 146,000,000	$ 38,000,000	$ 34,000,000