Property, Plant and Equipment (Narratives) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Original cost	$ 87,209		$ 87,209		$ 84,071
Accumulated depreciation and amortization	(36,170)		(36,170)		(35,735)
Depreciation and amortization	1,217	$ 1,182	2,325	$ 2,395
Property, Plant and Equipment, Net	51,039		51,039		48,336
Subsidiaries GECC [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	$ 34,830		$ 34,830		$ 31,519