Revenues from Services (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended					6 Months Ended	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2013		Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012	Dec. 31, 2012		Jun. 30, 2013 Sale Of Rockefeller Center [Member]	Jun. 30, 2013 Significant Associated Companies [Member]	Jun. 30, 2012 Significant Associated Companies [Member]	Jun. 30, 2013 Significant Associated Companies [Member]	Dec. 31, 2012 Significant Associated Companies [Member]
Subsidiary Revenue From Services [Line Items]
Interest On Loans	$ 4,477		$ 4,762	$ 9,023		$ 9,620
Equipment leased to others	2,433		2,546	4,962		5,189
Fees	1,166		1,160	2,300		2,320
Investment Income	574		668	988		1,335
Financing leases	389		529	825		1,063
Premiums earned by insurance activities	410		416	806		861
Real estate investments	508		382	1,808		738
Associated companies	274		425	446		695
Other items	718		440	1,300		817
Revenues from services (Note 9)	10,949		11,328	22,458		22,638
Net other-than-temporary impairments on investment securities	133		32	411		64
Guarantee Provided By Parent Offset	96			96
Assets	521,104	[1]		521,104	[1]		539,339	[1]		111,041		111,041	110,695
Financing Receivable, Net	257,092			257,092			268,951			68,280		68,280	66,878
Liabilities	436,343	[1]		436,343	[1]		456,742	[1]		83,107		83,107	81,784
Deposits	48,597			48,597			46,461			28,510		28,510	26,386
Debt										41,059		41,059	42,664
Revenues	10,079		10,489	20,856		21,112				4,503	4,702	8,513	9,192
Net earnings	2,452		2,186	4,494		4,124				795	772	1,360	1,301
Proceeds from Sale of Real Estate Held-for-investment									$ 902
Ownership Interest Assumed For Significant Associated Companies										100.00%		100.00%	100.00%

[1] (a) Our consolidated assets at June 30, 2013 include total assets of $46,939 million of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs. These assets include net financing receivables of $40,048 million and investment securities of $4,334 million. Our consolidated liabilities at June 30, 2013 include liabilities of certain VIEs for which the VIE creditors do not have recourse to GECC. These liabilities include non-recourse borrowings of consolidated securitization entities (CSEs) of $28,600 million. See Note 13.