Income Taxes - Reconciliation of Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
U.S. Federal income tax expense (benefit) at the statutory rate of 35%	$ 213	$ 240	$ 284
Deconsolidation of Venezuelan subsidiary	157	0	0
U.S. credits (R&D, foreign tax credits) and benefits offset to OCI	(72)	0	0
Adjustment for foreign income taxed at different rates	(39)	(37)	(2)
Net foreign losses (income) with no tax benefit due to valuation allowances	(19)	49	42
Net (resolution) establishment of uncertain tax positions	(13)	3	10
State income taxes, net of U.S. Federal benefit	10	12	0
Deferred tax impact of enacted tax rate and law changes	(2)	33	(13)
Provision for undistributed foreign earnings	0	131	0
U.S. (income) with no tax due to valuation allowance	0	0	(136)
Poland special enterprise zone tax credit	0	0	(42)
Other	1	2	3
United States and Foreign Tax (Benefit) Expense	232	(1,834)	138
Domestic Tax Authority
Income Taxes [Line Items]
Net (release) establishment of valuation allowances	(8)	(2,318)	0
Foreign Tax Authority
Income Taxes [Line Items]
Net (release) establishment of valuation allowances	$ 4	$ 51	$ (8)