Income Taxes Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Deferred tax assets, net of valuation allowance		$ 536	$ 486
Incremental tax liability asserted by IRS		1,162
Income Tax Examination, Penalties and Interest Accrued		500	443
Unrecognized Tax Benefits		1,056	1,047	$ 1,102	$ 1,088
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		900	903	941
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions		32	44	59
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions		38	3	43
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions		(36)	(87)	(42)
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities		(18)	(5)	(15)
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations		(7)	(10)	(31)
Deferred Tax Assets, Operating Loss Carryforwards, Domestic		624	335
Deferred Tax Assets, Net, Current		496	447
Deferred Tax Assets, Net, Noncurrent		40	39
Deferred Tax Assets, Inventory		49	46
Deferred Tax Assets, Operating Loss Carryforwards		742	525
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals		232	232
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Restructuring Charges		17	20
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Contingencies		689	556
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Impairment Losses		7	4
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost		138	150
Federal benefit of uncertain tax positions		197	178
Deferred Tax Assets, Other		39	36
Deferred Tax Assets, Gross		2,110	1,747
Deferred Tax Assets, Valuation Allowance		(499)	(450)
Change in Deferred Tax Assets, Valuation Allowance		49
Deferred Tax Liabilities, Current		2	2
Deferred Tax Liabilities, Noncurrent		735	1,214
Deferred Tax Liabilities, Property, Plant and Equipment		44	67
Deferred Tax Liabilities, Derivatives		82	146
Deferred Tax Liabilities, Goodwill and Intangible Assets, Intangible Assets		1,749	1,883
Deferred Tax Liabilities, Other		1,875	2,096
Deferred Tax Liabilities		737	1,216
Deferred Tax Liabilities		264	799
Deferred Tax Liabilities, Gross		1,875	2,096
Current Federal Tax Expense (Benefit)		59	(2)	46
Income (Loss) from Continuing Operations before Income Taxes, Domestic		(1,623)	(1,263)	(774)
Income (Loss) from Continuing Operations before Income Taxes, Foreign		973	754	551
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest		(650)	(509)	(223)
Current State and Local Tax Expense (Benefit)		3	(5)	(9)
Current Foreign Tax Expense (Benefit)		132	111	105
Current Income Tax Expense (Benefit)		194	104	142
Deferred Federal Income Tax Expense (Benefit)		(545)	(458)	(212)
Deferred State and Local Income Tax Expense (Benefit)		(41)	(23)	(17)
Deferred Foreign Income Tax Expense (Benefit)		(19)	(13)	(15)
Deferred Income Tax Expense (Benefit)		(605)	(494)	(244)
Income tax (benefit) expense		(411)	(390)	(102)
Deferred Tax Assets, Operating Loss Carryforwards, Foreign		288	304
Operating Loss Carryforwards		32	2
Other Comprehensive Income (Loss), Tax		25	21	76
Deferred Tax Liabilities, Undistributed Foreign Earnings		8,900
Free Trade Zone Regime Tax Incentive		7	7	6
Gross interest and penalties recognized in period		57
Income Tax Examination, Penalties and Interest Expense		37	26	$ 22
Potential Reduction In Unrecognized Tax Benefits Over Next Twelve Months As Result Of Concluding Certain Matters	$ 13
Deferred Tax Assets, Prepaid on Intercompany Profit		63	69
Net Deferred Tax Liabilities and Prepaid on Intercompany Profit		201	730
Deferred Tax Assets, Net of Valuation Allowance		$ 1,611	$ 1,297