Supplemental Information About The Credit Quality Of Financing Receivables And Allowance For Losses On Financing Receivables (Credit Quality) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015 NumberOfCustomer	Dec. 31, 2014
Credit Quality Indicators
Loans and leases receivable, Gross	81,413	$ 222,296
Secured Financing Receivables Portfolio [Member] | Secured Credit Quality Indicator [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	22,694	120,535
Secured Financing Receivables Portfolio [Member] | Risk Level, High [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	22,124	115,747
Secured Financing Receivables Portfolio [Member] | Risk Level, Medium [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	428	2,320
Secured Financing Receivables Portfolio [Member] | Risk Level, Low [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	142	2,468
US Consumer [Member]
Credit Quality Indicators
Number Of Consumer Financing Receivable Customers Across US Including Private Label Credit Card And Sales Financing	60,000,000
Percentage Of US Consumer Financing Receivables Related To Sales Finance Receivables	34.00%
Commercial [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	23,165	121,476
Commercial [Member] | Secured Financing Receivables Portfolio [Member] | Secured Credit Quality Indicator [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	127	130
Commercial [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, High [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	127	130
Commercial [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, Medium [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	0	0
Commercial [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, Low [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	0	0
Commercial [Member] | Unsecured Financing Receivables Portfolio [Member] | Risk Level, High [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	181	332
Commercial [Member] | Unsecured Financing Receivables Portfolio [Member] | Risk Level, Medium [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	290	408
Commercial [Member] | Unsecured Financing Receivables Portfolio [Member] | Risk Level, Low [Member]
Credit Quality Indicators
Loans and leases receivable, Gross		201
Energy Financial Services [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	2,666	2,580
Energy Financial Services [Member] | Secured Financing Receivables Portfolio [Member] | Secured Credit Quality Indicator [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	2,549	2,555
Energy Financial Services [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, High [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	2,378	2,479
Energy Financial Services [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, Medium [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	171	60
Energy Financial Services [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, Low [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	0	16
GE Capital Aviation Services (GECAS)
Credit Quality Indicators
Loans and leases receivable, Gross	7,817	8,263
GE Capital Aviation Services (GECAS) | Secured Financing Receivables Portfolio [Member] | Secured Credit Quality Indicator [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	7,817	8,263
GE Capital Aviation Services (GECAS) | Secured Financing Receivables Portfolio [Member] | Risk Level, High [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	7,488	7,908
GE Capital Aviation Services (GECAS) | Secured Financing Receivables Portfolio [Member] | Risk Level, Medium [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	229	237
GE Capital Aviation Services (GECAS) | Secured Financing Receivables Portfolio [Member] | Risk Level, Low [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	100	118
Total CLL [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	12,555	110,503
Total CLL [Member] | Secured Financing Receivables Portfolio [Member] | Secured Credit Quality Indicator [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	12,201	109,587
Total CLL [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, High [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	12,131	105,230
Total CLL [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, Medium [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	28	2,023
Total CLL [Member] | Secured Financing Receivables Portfolio [Member] | Risk Level, Low [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	42	2,334
Consumer [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	58,248	100,820
Consumer [Member] | US installment and revolving credit [Member]
Credit Quality Indicators
Percentage of customers with no metropolitan statistical area	5.00%
Percentage Of US Consumer Financing Receivables Related To Credit Cards Loans	66.00%
Consumer [Member] | US installment and revolving credit [Member] | Score 661 or Higher
Credit Quality Indicators
Loans and leases receivable, Gross	40,761	43,466
Consumer [Member] | US installment and revolving credit [Member] | Score 601 to 660
Credit Quality Indicators
Loans and leases receivable, Gross	11,681	11,865
Consumer [Member] | US installment and revolving credit [Member] | Score 600 or Less
Credit Quality Indicators
Loans and leases receivable, Gross	4,486	4,532
Consumer Other [Member] | Risk Level, High [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	1,038	5,006
Consumer Other [Member] | Risk Level, Medium [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	114	276
Consumer Other [Member] | Risk Level, Low [Member]
Credit Quality Indicators
Loans and leases receivable, Gross	168	$ 382