Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Income Tax Disclosure [Line Items]
Unrecognized tax benefits	$ 2,971	$ 2,971		$ 3,055
Portion that, if recognized, would reduce tax expense and effective tax rate	2,226	2,226		2,259
Accrued interest on unrecognized tax benefits	429	429		420
Accrued penalties on unrecognized tax benefits	39	39		34
Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months lower limit	0	0		0
Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months upper limit	750	750		600
Deferred income tax expense (benefit)		2,175	$ (1,654)
GE Capital exit plan [Member]
Income Tax Disclosure [Line Items]
Deferred income tax expense (benefit)	355	6,335
Income tax reconciliation repatriation of foreign earnings	125	3,674
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
Upper Limit
Income Tax Disclosure [Line Items]
Portion that, if recognized, would reduce tax expense and effective tax rate		$ 200		$ 50