Supplemental Information About The Credit Quality Of Financing Receivables And Allowance For Losses On Financing Receivables (Past Due & Nonaccrual Financing Receivables) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Past Due Financing Receivables
Percent of Financing Receivable, Recorded Investment, Past Due Over 30 Days	3.80%	4.50%
Percent of Financing Receivable, Recorded Investment, Past Due Over 90 Days	1.50%	2.10%
Nonaccrual Financing Receivables
Percent Financing Receivable, Recorded Investment, Nonaccrual Status	0.40%	1.60%
Nonaccrual loans	$ 306	$ 1,996
90 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	1,339	2,626
30 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	3,273	5,747
CLL [Member]
Nonaccrual Financing Receivables
Nonaccrual loans	27	25
CLL [Member] | 90 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	174	131
CLL [Member] | 30 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	655	610
Energy Financial Services [Member]
Nonaccrual Financing Receivables
Nonaccrual loans	82	68
Energy Financial Services [Member] | 90 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	63	0
Energy Financial Services [Member] | 30 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	63	0
GECAS [Member]
Nonaccrual Financing Receivables
Nonaccrual loans	195	419
GECAS [Member] | 90 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	0	0
GECAS [Member] | 30 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	2	0
Commercial [Member]
Nonaccrual Financing Receivables
Nonaccrual loans	304	512
Amount of nonaccrual loans currently paying in accordance with contractual terms	228	484
Commercial [Member] | 90 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	237	131
Commercial [Member] | 30 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	720	610
Consumer [Member]
Past Due Financing Receivables
Loans which are 90+ days past due and still accruing interest	1,100	1,231
Nonaccrual Financing Receivables
Nonaccrual loans	2	1,484
Amount of nonaccrual loans currently paying in accordance with contractual terms	0	179
Consumer [Member] | 90 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	1,102	2,495
Consumer [Member] | 30 days or greater past due [Member]
Past Due Financing Receivables
Recorded Investment Past Due	$ 2,553	$ 5,137