Shareowners' Equity (Reclass Out Of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Benefit (provision) for income taxes	$ (384)	$ 217	$ (6,211)	$ 94
Net earnings (loss)	(3,275)	1,838	(17,929)	3,794
Costs and Expenses	(5,362)	(5,319)	(12,874)	(10,503)
Financial Services Revenue	6,196	6,241	11,098	12,778
Interest And Other Financial Charges			133	126
Interest expense	996	1,024	1,945	2,123
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	856	956	(1,733)	2,336
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net earnings (loss)	34	(172)	(793)	(127)
Financial Services Revenue	404	(145)	(540)	(11)
Interest And Other Financial Charges	24	13	15	1
Securities Investment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Benefit (provision) for income taxes	(2)	(11)	(31)	(4)
Net earnings (loss)	(1)	23	53	13
Financial Services Revenue	1	34	84	17
Securities Investment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Discontinued operations [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Financial Services Revenue	15	13	17	(6)
Benefit (provision) for income taxes	(7)	(4)	(6)	3
Currency Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Benefit (provision) for income taxes	(150)	0	(151)	124
Net earnings (loss)	(304)	(4)	(307)	(6)
Costs and Expenses	(154)	(4)	(156)	(130)
Currency Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Discontinued operations [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Costs and Expenses	4	(4)	4	(129)
Benefit (provision) for income taxes	(137)	0	(137)	124
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Benefit (provision) for income taxes	(65)	18	54	14
Net earnings (loss)	341	(186)	(532)	(125)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	406	(204)	(586)	(139)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Interest Rate Contract [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest And Other Financial Charges	22	60	61	129
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [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]
Interest And Other Financial Charges	428	(144)	(525)	(10)
Benefit Plans Adj [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Benefit (provision) for income taxes	2	2	4	4
Net earnings (loss)	(2)	(5)	(7)	(9)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(4)	(7)	(11)	(13)
Defined Benefit Plan, Amortization of Gains (Losses)	1	(1)	1	(1)
Prior service cost amortization	$ (5)	$ (6)	$ (12)	$ (12)