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, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Non US residential mortgages [Member]
Past Due Financing Receivables
Over 30 days past due	$ 8,379	$ 9,113
Over 90 days past due	4,570	4,858
Percent of Financing Receivable, Recorded Investment, Past Due Over 30 Days	3.50%	3.50%
Percent of Financing Receivable, Recorded Investment, Past Due Over 90 Days	1.90%	1.90%
Nonaccrual Financing Receivables
Percent Financing Receivable, Recorded Investment, Nonaccrual Status	2.60%	3.10%
Nonaccrual loans	6,201	7,915
Commercial Portfolio Segment [Member]
Past Due Financing Receivables
Over 30 days past due	2,155	2,245
Over 90 days past due	1,222	1,179
Nonaccrual Financing Receivables
Nonaccrual loans	2,324	2,744
Amount of nonaccrual loans currently paying in accordance with contractual terms	1,157	1,397
Commercial Portfolio Segment [Member] | Energy Financial Services Financing Receivables [Member]
Past Due Financing Receivables
Over 30 days past due	0	0
Over 90 days past due	0	0
Nonaccrual Financing Receivables
Nonaccrual loans	57	4
Commercial Portfolio Segment [Member] | GECAS Financing Receivables [Member]
Past Due Financing Receivables
Over 30 days past due	0	0
Over 90 days past due	0	0
Nonaccrual Financing Receivables
Nonaccrual loans	153	0
Commercial Portfolio Segment [Member] | Other Financing Receivables [Member]
Past Due Financing Receivables
Over 30 days past due	0	0
Over 90 days past due	0	0
Nonaccrual Financing Receivables
Nonaccrual loans	0	6
Commercial Portfolio Segment [Member] | Americas CLL Financing Receivables [Member]
Past Due Financing Receivables
Over 30 days past due	592	755
Over 90 days past due	376	359
Nonaccrual Financing Receivables
Nonaccrual loans	1,101	1,275
Commercial Portfolio Segment [Member] | International [Member]
Past Due Financing Receivables
Over 30 days past due	1,563	1,490
Over 90 days past due	846	820
Nonaccrual Financing Receivables
Nonaccrual loans	1,013	1,459
Commercial Portfolio Segment [Member] | CLL Financing Receivables [Member]
Past Due Financing Receivables
Over 30 days past due	2,155	2,245
Over 90 days past due	1,222	1,179
Nonaccrual Financing Receivables
Nonaccrual loans	2,114	2,734
Commercial Real Estate Portfolio Segment [Member]
Past Due Financing Receivables
Over 30 days past due	284	247
Over 90 days past due	247	212
Nonaccrual Financing Receivables
Nonaccrual loans	1,628	2,551
Amount of nonaccrual loans currently paying in accordance with contractual terms	1,355	2,308
Consumer Portfolio Segment [Member]
Past Due Financing Receivables
Over 30 days past due	5,940	6,621
Over 90 days past due	3,101	3,467
Loans which are 90+ days past due and still accruing interest	1,134	1,197
Nonaccrual Financing Receivables
Nonaccrual loans	2,249	2,620
Amount of nonaccrual loans currently paying in accordance with contractual terms	234	324
Consumer Portfolio Segment [Member] | Non US residential mortgages [Member]
Past Due Financing Receivables
Over 30 days past due	3,044	3,406
Over 90 days past due	1,892	2,104
Nonaccrual Financing Receivables
Nonaccrual loans	1,960	2,161
Consumer Portfolio Segment [Member] | Non US installment and revolving credit [Member]
Past Due Financing Receivables
Over 30 days past due	320	512
Over 90 days past due	95	146
Nonaccrual Financing Receivables
Nonaccrual loans	50	88
Consumer Portfolio Segment [Member] | US installment and revolving credit [Member]
Past Due Financing Receivables
Over 30 days past due	2,372	2,442
Over 90 days past due	1,038	1,105
Nonaccrual Financing Receivables
Nonaccrual loans	2	2
Consumer Portfolio Segment [Member] | Non US auto [Member]
Past Due Financing Receivables
Over 30 days past due	73	89
Over 90 days past due	10	13
Nonaccrual Financing Receivables
Nonaccrual loans	19	18
Consumer Portfolio Segment [Member] | Consumer Other Financing Receivable [Member]
Past Due Financing Receivables
Over 30 days past due	131	172
Over 90 days past due	66	99
Nonaccrual Financing Receivables
Nonaccrual loans	$ 218	$ 351