Financing Receivables, Allowance For Losses On Financing Receivables and Supplemental Information on Credit Quality (Financing Receivables Net) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 258,207	$ 273,105
Less allowance for losses	(5,178)	(4,944)	(6,162)	(7,879)
Financing receivables - net	253,029	268,161
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	129,269	137,810
Less allowance for losses	(1,005)	(1,041)	(1,530)	(2,045)
Commercial Portfolio Segment [Member] | Americas CLL Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	68,585	72,517
Less allowance for losses	(473)	(490)	(889)	(1,288)
Commercial Portfolio Segment [Member] | Europe CLL Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	37,962	37,037
Less allowance for losses	(415)	(445)	(400)	(429)
Commercial Portfolio Segment [Member] | Asia CLL Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	9,469	11,401
Less allowance for losses	(90)	(80)	(157)	(222)
Commercial Portfolio Segment [Member] | Other CLL Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	451	603
Less allowance for losses	0	(6)	(4)	(6)
Commercial Portfolio Segment [Member] | CLL Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	116,467	121,558
Less allowance for losses	(978)	(1,021)	(1,450)	(1,945)
Commercial Portfolio Segment [Member] | Energy Financial Services Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	3,107	4,851
Less allowance for losses	(8)	(9)	(26)	(22)
Commercial Portfolio Segment [Member] | GECAS Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	9,377	10,915
Less allowance for losses	(17)	(8)	(17)	(20)
Commercial Portfolio Segment [Member] | Other Financing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	318	486
Less allowance for losses	(2)	(3)	(37)	(58)
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	19,899	20,946
Less allowance for losses	(192)	(320)	(1,089)	(1,488)
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	109,039	114,349
Less allowance for losses	(3,981)	(3,583)	(3,543)	(4,346)
Consumer Portfolio Segment [Member] | Non US residential mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	30,501	33,350
Less allowance for losses	(358)	(480)	(545)	(688)
Consumer Portfolio Segment [Member] | Non US installment and revolving credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	13,677	17,816
Less allowance for losses	(594)	(582)	(690)	(898)
Consumer Portfolio Segment [Member] | US installment and revolving credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	55,854	50,853
Less allowance for losses	(2,823)	(2,282)	(2,008)	(2,333)
Consumer Portfolio Segment [Member] | Non US auto [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	2,054	4,260
Less allowance for losses	(56)	(67)	(101)	(168)
Consumer Portfolio Segment [Member] | Consumer Other Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less allowance for losses	(150)	(172)	(199)	(259)
Consumer Portfolio Segment [Member] | Consumer Other Portfolio [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 6,953	$ 8,070