Revenues from Services (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Subsidiary Revenue From Services [Line Items]
Interest On Loans											$ 17,324		$ 17,951		$ 18,843
Equipment leased to others											9,940		9,804		10,456
Fees											4,618		4,720		4,709
Investment Income											2,271		1,809		2,630
Financing leases											1,416		1,667		1,888
Associated companies											1,182		1,809		1,538
Premiums earned by insurance activities											1,509		1,573		1,715
Real estate investments											1,727		2,528		1,709
Other items											2,617		2,080		1,757
Revenues from services (Note 12)											42,604		43,941		45,245
Net other-than-temporary impairments on investment securities													96
Assets	500,216	[1]				516,829	[1]				500,216	[1]	516,829	[1]	539,351
Financing Receivable, Net	237,018					253,029					237,018		253,029
Liabilities	409,818	[1]				433,703	[1]				409,818	[1]	433,703	[1]
Deposits	62,839					53,361					62,839		53,361
Revenues	11,512		10,451	10,247	10,515	11,077		10,606	10,916	11,468	42,725		44,067		45,364
Brazilian Company [Member]
Subsidiary Revenue From Services [Line Items]
Guarantee Provided By Parent Offset													96
Significant associated companies [Member]
Subsidiary Revenue From Services [Line Items]
Assets	78,632					84,305					78,632		84,305
Financing Receivable, Net	46,481					46,655					46,481		46,655
Liabilities	57,273					59,559					57,273		59,559
Revenues											37,883		16,193		17,592
Cembra [Member]
Subsidiary Revenue From Services [Line Items]
Gain (Loss) on Disposition of Business													351
Bank of Ayudhya [Member]
Subsidiary Revenue From Services [Line Items]
Gain on Sale of Investments													641
Sale Of Rockefeller Center [Member]
Subsidiary Revenue From Services [Line Items]
Gain on Sale of Investments													$ 902

[1] (a)Our consolidated assets at December 31, 2014 included total assets of $50,586 million of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs. These assets included net financing receivables of $43,620 million and investment securities of $3,374 million. Our consolidated liabilities at December 31, 2014 included liabilities of certain VIEs for which the VIE creditors do not have recourse to GECC. These liabilities included non-recourse borrowings of consolidated securitization entities (CSEs) of $28,664 million. See Note 16.