Income Taxes Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Incremental tax liability asserted by IRS		$ 1,162
Unrecognized Tax Benefits		1,069	1,052	987	965
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		939	902
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions		58	54	104
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions		45	43	8
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions		(40)	(27)	(72)
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities		(15)	(1)	(3)
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations		(31)	(4)	(15)
Deferred Tax Assets, Operating Loss Carryforwards, Domestic		216	184
Deferred Tax Assets, Net, Current		288	433
Deferred Tax Assets, Net, Noncurrent		42	54
Deferred Tax Assets, Inventory		116	136
Deferred Tax Assets, Operating Loss Carryforwards		513	497
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals		221	300
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Restructuring Charges		17	13
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Contingencies		198	48
Deferred Tax Assets, Derivative Instruments		0	0
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Impairment Losses		15	13
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost		143	171
Federal benefit of uncertain tax positions		166	157
Deferred Tax Assets, Other		39	54
Deferred Tax Assets, Gross		1,428	1,389
Deferred Tax Assets, Valuation Allowance		(299)	(316)
Deferred tax assets, net of valuation allowance		1,129	1,073
Deferred Tax Assets, Net		330	487
Deferred Tax Liabilities, Current		2	11
Deferred Tax Liabilities, Noncurrent		1,402	1,713
Deferred Tax Liabilities, Property, Plant and Equipment		78	101
Deferred Tax Liabilities, Derivatives		80	21
Deferred Tax Liabilities, Goodwill and Intangible Assets, Intangible Assets		2,045	2,187
Deferred Tax Liabilities, Other		0	1
Deferred Tax Liabilities		1,404	1,724
Deferred Tax Liabilities		2,203	2,310
Deferred Tax Assets (Liabilities), Net		1,074	1,237
Current Federal Tax Expense (Benefit)		46	33	45
Income (Loss) from Continuing Operations before Income Taxes, Domestic		(774)	(1,265)	(437)
Income (Loss) from Continuing Operations before Income Taxes, Foreign		551	(2,842)	1,079
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest		(223)	(4,107)	642
Current State and Local Tax Expense (Benefit)		(9)	0	8
Current Foreign Tax Expense (Benefit)		105	139	91
Current Income Tax Expense (Benefit)		142	172	144
Deferred Federal Income Tax Expense (Benefit)		(212)	(204)	86
Deferred State and Local Income Tax Expense (Benefit)		(17)	(7)	(8)
Deferred Foreign Income Tax Expense (Benefit)		(15)	0	(21)
Deferred Income Tax Expense (Benefit)		(244)	(211)	57
Income tax (benefit) expense		(102)	(39)	201
Deferred Tax Assets, Operating Loss Carryforwards, Foreign		313	341
Valuation Allowance, Amount		299	316
Other Comprehensive Income (Loss), Tax		72	43	1
Deferred Tax Liabilities, Undistributed Foreign Earnings		11,902	11,041
Free Trade Zone Regime Tax Incentive		6	7	2
Accrued Interest And Penalties Gross		402	364
Gross interest and penalties recognized in period		38
Income Tax Examination, Penalties and Interest Expense		22	34	18
Potential Reduction In Unrecognized Tax Benefits Over Next Twelve Months As Result Of Concluding Certain Matters	$ 27