Operating Segment Table - MD&A (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$ 5,982us-gaap_Revenues	$ 9,885us-gaap_Revenues
Income Tax Expense (Benefit)	6,152us-gaap_IncomeTaxExpenseBenefit	301us-gaap_IncomeTaxExpenseBenefit
Interest On Loans	3,807us-gaap_InterestAndFeeIncomeOtherLoans	4,029us-gaap_InterestAndFeeIncomeOtherLoans
Earnings (loss) from discontinued operations, net of taxes	(2,201)	252
Earnings (loss) from continuing operations attributable to GECC common shareowner	(12,544)	1,693
Net Income (Loss) Available to Common Stockholders, Basic	(14,745)	1,945
Variance in revenues	(39.00%)gecc_Percentincreasedecreaseinrevenues
Variance in Earnings From Discontinued Operations Fav Unfav	U
Variance In Earnings Loss From Continuing Operations Fav Unfav	U
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	5,181	8,998
Segment profit	(6,280)	1,855
Variance in revenues	(42.00%)
Variance In Segment Profit FavUnfav	U
Total CLL [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	1,556	3,582
Segment profit	(3,847)	564
Variance in revenues	(57.00%)
Variance In Segment Profit FavUnfav	U
Consumer [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	2,058	3,602
Segment profit	(2,775)	786
Variance in revenues	(43.00%)
Variance In Segment Profit FavUnfav	U
Energy Financial Services [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	285	469
Segment profit	35	153
Variance in revenues	(39.00%)
Variance in segment profit	(77.00%)
GECAS [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	1,282	1,345
Segment profit	307	352
Variance in revenues	(5.00%)
Variance in segment profit	(13.00%)
Corporate Items And Eliminations [Member] \| Intersegment [Member]
Segment Reporting Information [Line Items]
Revenues	801	887
Segment profit	$ (6,264)	$ (162)
Variance in revenues	(10.00%)

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