Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
		Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Income Tax Disclosure [Line Items]
Unrecognized tax benefits		$ 2,957	$ 2,957		$ 3,055
Portion that, if recognized, would reduce tax expense and effective tax rate		2,215	2,215		2,259
Accrued interest on unrecognized tax benefits		359	359		420
Accrued penalties on unrecognized tax benefits		35	35		34
Deferred income tax expense (benefit)	[1]		2,772	$ (689)
GE Capital Exit Plan [Member]
Income Tax Disclosure [Line Items]
Deferred income tax expense (benefit)		6,335	355
Income tax reconciliation repatriation of foreign earnings		3,674	125
Income tax reconciliation change		230	2,661
Foreign cash in excess of normal operating		36,000	36,000
Lower Limit
Income Tax Disclosure [Line Items]
Portion that, if recognized, would reduce tax expense and effective tax rate		0	0		0
Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months		0	0		0
Upper Limit
Income Tax Disclosure [Line Items]
Portion that, if recognized, would reduce tax expense and effective tax rate		0	0		600
Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months		$ 0	$ 0		$ 50

[1] Amounts may not add due to rounding.