Operating Segment Table - MD&A (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Total revenues	$ 6,218	$ 6,275	$ 11,141	$ 12,839
Income tax expense (benefit)	384	(217)	6,211	(94)
Interest On Loans	2,955	3,038	5,892	6,066
Preferred stock dividends declared	161	161
Earnings (loss) from discontinued operations, net of taxes	(3,747)	665	(9,985)	1,364
Earnings (loss) from continuing operations attributable to GECC common shareowner	$ 379	1,163	$ (8,128)	$ 2,409
Variance in segment profit fav unfav			U
Variance in earnings from continuing operations			(6700.00%)
Variance in earnings loss from continuing operations fav unfav			U
Variance in earnings from discontinued operations fav unfav			U	U
Increase decrease in earnings loss from continuing operations common shareowners f u			U
Net Earnings Fav Unfav	U		U
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 5,530	5,501	$ 9,398	$ 11,158
Variance in segment profit	100.00%
CLL [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 262	251	505	492
Segment profit	$ 96	86	$ 175	162
Variance in revenues	400.00%		300.00%
Variance in segment profit	1200.00%		800.00%
Consumer [Member]
Segment Reporting Information [Line Items]
Variance in segment profit fav unfav			U
Consumer [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 3,527	3,598	$ 5,585	7,200
Segment profit	$ 459	472	$ (2,316)	1,258
Variance in revenues	(200.00%)		(2200.00%)
Variance in segment profit	(300.00%)
Energy Financial Services [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 396	307	$ 681	776
Segment profit	$ 109	76	$ 144	229
Variance in revenues	2900.00%		(1200.00%)
Variance in segment profit	4300.00%		(3700.00%)
GECAS [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 1,345	1,345	$ 2,627	2,690
Segment profit	$ 361	343	$ 668	695
Variance in revenues	0.00%		(200.00%)
Variance in segment profit	500.00%		(400.00%)
Corporate Items And Eliminations [Member]
Segment Reporting Information [Line Items]
Variance in segment profit fav unfav	U		U
Corporate Items And Eliminations [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 688	774	$ 1,743	1,681
Segment profit	$ (646)	$ 186	$ (6,799)	$ 65
Variance in revenues	(1100.00%)		400.00%

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