Investment Securities (Investment) (Details) - USD ($) $ in Millions		6 Months Ended	12 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		$ 35,724	$ 33,367
Gross unrealized gains		4,017	5,193
Gross unrealized losses		(303)	(160)
Estimated fair value		39,438	38,400
Investments		39,438	38,400
Eliminations
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		(3)	(4)
Gross unrealized gains		0	0
Gross unrealized losses		0	0
Estimated fair value		(3)	(4)
U.S. Government and federal agency
Schedule of Available-for-sale Securities [Line Items]
Investments		1,132
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments		26
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments		1,132
GE [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		81	82
Gross unrealized gains		28	4
Gross unrealized losses		(23)	(2)
Investments	[1]	86	84
GE [Member] | US Corporate
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		5	12
Gross unrealized gains		0	0
Gross unrealized losses		0	0
Estimated fair value		5	12
GE [Member] | Corporate - non-U.S.
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		1	1
Gross unrealized gains		0	0
Gross unrealized losses		0	0
Estimated fair value		1	1
GE [Member] | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		75	69
Gross unrealized gains		28	4
Gross unrealized losses		(23)	(2)
Estimated fair value		80	71
GE [Member] | Trading Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		0	0
Gross unrealized gains		0	0
Gross unrealized losses		0	0
Estimated fair value		0	0
GECC [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		35,646	33,289
Gross unrealized gains		3,989	5,189
Gross unrealized losses		(280)	(158)
Investments		39,355	38,320
GECC [Member] | US Corporate
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		19,970	19,810
Gross unrealized gains		3,013	3,962
Gross unrealized losses		(147)	(69)
Estimated fair value		22,836	23,703
GECC [Member] | State and municipal
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		4,015	4,173
Gross unrealized gains		398	555
Gross unrealized losses		(90)	(53)
Estimated fair value		4,323	4,675
GECC [Member] | Residential Mortgage Backed Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		1,077	1,544
Gross unrealized gains		88	153
Gross unrealized losses		(7)	(5)
Estimated fair value		1,158	1,692
GECC [Member] | Commercial mortgage backed
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		2,344	2,903
Gross unrealized gains		133	170
Gross unrealized losses		(16)	(10)
Estimated fair value		2,461	3,063
GECC [Member] | Asset-backed
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		112	304
Gross unrealized gains		1	8
Gross unrealized losses		(15)	(17)
Estimated fair value		98	295
GECC [Member] | Corporate - non-U.S.
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		812	908
Gross unrealized gains		101	109
Gross unrealized losses		0	(1)
Estimated fair value		913	1,016
GECC [Member] | Government - non-U.S.
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		1,688	1,560
Gross unrealized gains		154	152
Gross unrealized losses		(4)	(2)
Estimated fair value		1,838	1,710
GECC [Member] | U.S. Government and federal agency
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		5,504	1,957
Gross unrealized gains		80	56
Gross unrealized losses		0	0
Estimated fair value		5,584	2,013
GECC [Member] | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		105	109
Gross unrealized gains		21	24
Gross unrealized losses		(1)	(1)
Estimated fair value		125	132
GECC [Member] | Trading Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		19	21
Gross unrealized gains		0	0
Gross unrealized losses		0	0
Estimated fair value		$ 19	$ 21

[1] (a) Represents the adding together of all affiliated companies except General Electric Capital Corporation (GECC or Financial Services), which is presented on a one-line basis. See Note 1.