Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Line Items]
Tax benefit from the conclusion of non-U.S. tax claims		$ 9
Loss on deconsolidation of Venezuelan subsidiary	$ 646	646	$ 0	$ 0
Tax benefit from research and development tax credit		10
United States and Foreign Tax (Benefit) Expense		232	(1,834)	138
Tax adjustments		(18)	(1,980)	(43)
Provision for potential U.S. Federal taxation of certain undistributed earnings of foreign subsidiaries		0	131	0
Deferred tax impact of enacted tax rate and law changes		(2)	33	(13)
Benefit from Poland special enterprise zone credit				(33)
Benefit related to enacted law changes				(13)
Foreign tax assets for net operating loss, capital loss and tax credit carryforwards	519	519
Valuation allowance	(621)	(621)	(632)
Federal tax assets for net operating loss and tax credit carryforwards	795	795
State tax assets for net operating loss and tax credit carryforwards	101	101
Federal tax assets for net operating losses subject to expiration	38	38
Foreign tax credits subject to expiration	686	686
R&D tax credits subject to expiration	71	71
Unrealized stock option deductions to deferred assets	57	57
Reduction of the valuation allowance	275	275
Unrecognized tax benefits	54	54	81	88	$ 82
Favorable tax expense impact of unrecognized tax benefits, if recognized	40	40
Accrued interest	5	5
Unrecognized tax benefits requiring the use of cash if not favorably settled	9	9
Undistributed foreign subsidiaries earnings	1,400	1,400
Income tax cash payments, net		113	127	186
Domestic Tax Authority
Income Taxes [Line Items]
Net (release) establishment of valuation allowances		(8)	(2,318)	0
Tax benefit from loss on deconsolidation of subsidiary		69
Tax adjustments			(2,179)
Valuation allowance	(98)	(98)
Venezuelan & Brazilian subsidiaries
Income Taxes [Line Items]
Net (release) establishment of valuation allowances			37
Luxembourg subsidiary
Income Taxes [Line Items]
Net (release) establishment of valuation allowances			9
Chile
Income Taxes [Line Items]
Deferred tax impact of enacted tax rate and law changes			11
Poland
Income Taxes [Line Items]
Foreign tax assets for net operating loss, capital loss and tax credit carryforwards	15	15
Foreign Tax Authority
Income Taxes [Line Items]
Net (release) establishment of valuation allowances		4	$ 51	$ (8)
Valuation allowance	$ (523)	$ (523)