Businesses Held for Sale, Financing Receivables Held for Sale and Discontinued Operations (Discontinued Operations) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Operations
Interest expense	[1]	$ 1,151	$ 1,061	$ 3,096	$ 3,184
Provision for losses on financing receivables	[1]	738	858	4,636	2,693
Disposal
Earnings (loss) from discontinued operations, net of taxes (Note 2)	[1]	(347)	706	(10,332)	2,070
Assets
Investments	[1]	36,868		36,868		$ 38,320
Goodwill	[1]	11,460		11,460		11,456
Receivables Held for Sale	[1]	23,665		23,665		778
Assets of discontinued operations	[1]	121,940		121,940		186,924
Liabilities
Short-term borrowings		42,880		42,880		67,705
Non Recourse Borrowings Of Consolidated Securitization Entities		16,225		16,225		19,369
Bank deposits		48,656		48,656		43,841
Liabilities of discontinued operations	[1]	43,642		43,642		48,657
Net Income (Loss) Attributable to Parent	[1]	387	1,549	(17,726)	5,322
Real Estate [Member]
Operations
Earnings (loss) from discontinued operations before income taxes		81	120	(1,658)	452
CLL
Operations
Earnings (loss) from discontinued operations before income taxes		(1,608)	589	(7,736)	1,710
Assets
Goodwill		111		111		25
Discontinued operations
Operations
Total revenues (loss)		2,756	4,033	9,536	11,946
Earnings (loss) from discontinued operations before income taxes		1,060	666	203	2,062
Benefit (provision) for income taxes		(420)	40	33	(7)
Earnings (loss) from discontinued operations, net of taxes		640	706	236	2,055
Disposal
Gain (loss) on disposal before income taxes		(2,616)	0	(9,652)	14
Benefit (provision) for income taxes		1,629	0	(916)	1
Gain (loss) on disposal, net of taxes		(987)	0	(10,568)	15
Earnings (loss) from discontinued operations, net of taxes (Note 2)		(347)	706	(10,332)	2,070
Assets
Cash and cash equivalents		11,226		11,226		5,414
Investments		8,179		8,179		10,006
Financing receivables - net		11,622		11,622		114,561
Other receivables		1,470		1,470		2,183
Property, plant and equipment - net		12,084		12,084		18,051
Goodwill		9,867		9,867		13,569
Other intangible assets		44		44		301
Deferred income tax asset		2,389		2,389		2,920
Receivables Held for Sale		65,390		65,390		3,116
Valuation allowance on disposal group		(7,650)		(7,650)		0
Other assets		7,320		7,320		16,803
Assets of discontinued operations		121,940		121,940		186,924
Liabilities
Short-term borrowings		820		820		1,125
Accounts payable, current		3,884		3,884		3,770
Non Recourse Borrowings Of Consolidated Securitization Entities		8,072		8,072		10,569
Bank deposits		18,348		18,348		18,998
Long-term borrowings		316		316		1,182
All other liabilities		9,595		9,595		7,610
Deferred income taxes		2,608		2,608		5,403
Liabilities of discontinued operations		43,642		43,642		$ 48,657
Discontinued operations | Real Estate [Member]
Operations
Total revenues (loss)		81	698	893	1,992
Interest expense		(64)	(270)	(437)	(817)
Operating and administrative		(156)	(213)	(464)	(563)
Depreciation and amortization		0	(82)	(62)	(252)
Provision for losses on financing receivables		0	(12)	4	92
Earnings (loss) from discontinued operations before income taxes		(139)	121	(65)	452
Benefit (provision) for income taxes		53	55	95	251
Earnings (loss) from discontinued operations, net of taxes		(86)	176	30	703
Disposal
Gain (loss) on disposal before income taxes		218	0	(1,593)	0
Benefit (provision) for income taxes		0	0	(618)	0
Gain (loss) on disposal, net of taxes		218	0	(2,211)	0
Earnings (loss) from discontinued operations, net of taxes (Note 2)		132	176	(2,181)	703
Liabilities
Estimated loss on disposal		218		1,593
Estimated loss on disposal after tax		218		2,211
Discontinued operations | CLL
Operations
Total revenues (loss)		2,691	3,370	8,664	9,998
Interest expense		(576)	(762)	(1,919)	(2,324)
Operating and administrative		(900)	(942)	(2,905)	(2,732)
Depreciation and amortization		0	(988)	(1,768)	(2,923)
Provision for losses on financing receivables		13	(87)	(1,744)	(294)
Earnings (loss) from discontinued operations before income taxes		1,228	591	328	1,725
Benefit (provision) for income taxes		(484)	(108)	(169)	(326)
Earnings (loss) from discontinued operations, net of taxes		744	483	159	1,399
Disposal
Gain (loss) on disposal before income taxes		(2,834)	0	(8,059)	0
Benefit (provision) for income taxes		1,629	0	(298)	0
Gain (loss) on disposal, net of taxes		(1,205)	0	(8,357)	0
Earnings (loss) from discontinued operations, net of taxes (Note 2)		(461)	$ 483	(8,198)	$ 1,399
Liabilities
Estimated loss on disposal		(2,834)		8,059
Estimated loss on disposal after tax		$ (1,205)		$ 8,357

[1] Amounts may not add due to rounding.