Shareowners' Equity (Reclass Out of Accumulated Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income Tax Expense (Benefit)	$ (1,092)	$ 3	$ 13	$ 84	$ 126	$ 80	$ 102	$ 213	$ (992)	$ 521	$ 906
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	788	1,822	1,818	1,829	1,520	1,588	1,583	1,587	6,257	6,278	6,637
Costs and Expenses									36,748	37,435	40,811
Financial Services Revenue									43,941	45,245	48,176
Foreign Exchange Contract [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Financial Services Revenue									608	894	(310)
Interest and other financial charges									(20)	(70)	(177)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									527	156	(1,537)
Securities Investment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income Tax Expense (Benefit)									215	12	1
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									(306)	(22)	(31)
Financial Services Revenue									(521)	(34)	(32)
Currency Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income Tax Expense (Benefit)									791	55	357
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									810	131	(381)
Costs and Expenses									19	76	(738)
Cash Flow Hedge [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income Tax Expense (Benefit)									(158)	(250)	204
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									66	80	(1,104)
Interest Income (Expense), Net									(364)	(494)	(821)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest									224	330	(1,308)
Cash Flow Hedge [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Exchange Contract [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Financial Services Revenue									588	824	(487)
Pension Plan, Defined Benefit [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income Tax Expense (Benefit)									16	10	11
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									(43)	(33)	(21)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest									(59)	(43)	(32)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)									0	0	2
Defined Benefit Plan, Amortization of Gains (Losses)									$ (59)	$ (43)	$ (34)