Parent And Guarantor Consolidating Financial Statements (Schedule Of Condensed Consolidating Statement of Cash Flow) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 2,501		$ 5,049		$ 5,493
Purchases of available-for-sale securities	(12,304)		(12,816)		(19,377)
Proceeds from sales of available-for-sale securities	3,627		7,662		14,232
Proceeds from maturities of available-for-sale securities	5,509		5,673		4,965
Net (increase) decrease in finance receivables and loans	(2,479)		(11,943)		(16,998)
Proceeds from Sale of Loans Held-for-investment	0		2,332		2,868
Net (increase) decrease in operating lease assets	(6,232)		(5,699)		(1,011)
Capital contributions to subsidiaries	0		0		0
Returns of contributed capital	0		0		0
Cash Divested from Deconsolidation	0		(539)		0
Payments for (Proceeds from) Mortgage Servicing Rights	911		0		0
Proceeds from sale of business units, net	7,444	[1]	516	[1]	50	[1]
Increase (Decrease) in Restricted Cash	(70)		(1,698)		346
Other, net	51		(43)		797
Net cash (used in) provided by investing activities	(3,543)		(16,555)		(14,128)
Net change in short-term borrowings	1,591		2,694		514
Net increase in bank deposits	5,375		6,653		6,074
Proceeds from issuance of long-term debt	27,312		39,401		44,754
Repayments of long-term debt	(31,892)		(39,909)		(40,473)
Proceeds from Issuance of Common Stock	1,270		0		0
Payments for Repurchase of Convertible Preferred Stock	(5,925)		0		0
Dividends paid	(810)		(802)		(819)
Capital contributions from parent	0		0		0
Net cash provided by (used in) financing activities	(3,079)		8,037		10,050
Effect of exchange-rate changes on cash and cash equivalents	45		(58)		49
Cash and Cash Equivalents, Period Increase (Decrease)	(4,076)		(3,527)		1,464
Cash and cash equivalents at beginning of period	7,513		13,035		11,670
Cash and cash equivalents at end of period	5,531		7,513		13,035
Net Cash Provided by (Used in) Discontinued Operations	2,094	[1],[2]	(1,995)	[1],[2]	(99)	[1],[2]
Parent [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	3,015		102		2,695
Purchases of available-for-sale securities	0		0		0
Proceeds from sales of available-for-sale securities	0		0		1,494
Proceeds from maturities of available-for-sale securities	0		0		1
Net (increase) decrease in finance receivables and loans	4,898		3,027		(2,933)
Proceeds from Sale of Loans Held-for-investment			352		1,346
Net (increase) decrease in operating lease assets	(1,320)		(2,268)		2,890
Capital contributions to subsidiaries	(477)		(261)		(1,634)
Returns of contributed capital	1,002		2,079		1,255
Cash Divested from Deconsolidation			0
Payments for (Proceeds from) Mortgage Servicing Rights	0
Proceeds from sale of business units, net	1,799		29		0
Increase (Decrease) in Restricted Cash	0		0		157
Other, net	41		(247)		(33)
Net cash (used in) provided by investing activities	6,249		6,590		5,286
Net change in short-term borrowings	131		338		237
Net increase in bank deposits	(543)		(785)		308
Proceeds from issuance of long-term debt	3,236		3,613		3,201
Repayments of long-term debt	(9,468)		(11,238)		(9,414)
Proceeds from Issuance of Common Stock	1,270
Payments for Repurchase of Convertible Preferred Stock	(5,925)
Dividends paid	(810)		(802)		(819)
Capital contributions from parent	0		0		0
Net cash provided by (used in) financing activities	(10,306)		(8,918)		(6,416)
Effect of exchange-rate changes on cash and cash equivalents	0		(63)		31
Cash and Cash Equivalents, Period Increase (Decrease)	(1,042)		(2,289)		1,596
Cash and cash equivalents at beginning of period	3,972		6,261		4,665
Cash and cash equivalents at end of period	2,930		3,972		6,261
Net Cash Provided by (Used in) Discontinued Operations	0		0		0
Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	3,572		306		209
Purchases of available-for-sale securities	0		0		0
Proceeds from sales of available-for-sale securities	0		0		0
Proceeds from maturities of available-for-sale securities	0		0		0
Net (increase) decrease in finance receivables and loans	79		2		(51)
Proceeds from Sale of Loans Held-for-investment			0		0
Net (increase) decrease in operating lease assets	0		0		0
Capital contributions to subsidiaries	0		0		(855)
Returns of contributed capital	150		0		0
Cash Divested from Deconsolidation			0
Payments for (Proceeds from) Mortgage Servicing Rights	0
Proceeds from sale of business units, net	554		0		0
Increase (Decrease) in Restricted Cash	(26)		(13)		0
Other, net	0		0		(1)
Net cash (used in) provided by investing activities	1,008		94		(896)
Net change in short-term borrowings	36		25		47
Net increase in bank deposits	0		1		0
Proceeds from issuance of long-term debt	0		70		200
Repayments of long-term debt	(70)		(73)		(226)
Proceeds from Issuance of Common Stock	0
Payments for Repurchase of Convertible Preferred Stock	0
Dividends paid	0		0		0
Capital contributions from parent	29		169		855
Net cash provided by (used in) financing activities	(4,543)		(414)		699
Effect of exchange-rate changes on cash and cash equivalents	0		0		0
Cash and Cash Equivalents, Period Increase (Decrease)	37		(14)		12
Cash and cash equivalents at beginning of period	0		14		2
Cash and cash equivalents at end of period	37		0		14
Net Cash Provided by (Used in) Discontinued Operations	0		0		0
Non-Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	5,305		5,862		3,973
Purchases of available-for-sale securities	(12,304)		(12,816)		(19,377)
Proceeds from sales of available-for-sale securities	3,627		7,662		12,738
Proceeds from maturities of available-for-sale securities	5,509		5,673		4,964
Net (increase) decrease in finance receivables and loans	(7,456)		(14,972)		(14,014)
Proceeds from Sale of Loans Held-for-investment			1,980		1,522
Net (increase) decrease in operating lease assets	(4,912)		(3,431)		(3,901)
Capital contributions to subsidiaries	0		0		0
Returns of contributed capital	0		0		0
Cash Divested from Deconsolidation			(539)
Payments for (Proceeds from) Mortgage Servicing Rights	911
Proceeds from sale of business units, net	5,091		487		50
Increase (Decrease) in Restricted Cash	(44)		(1,685)		189
Other, net	10		204		831
Net cash (used in) provided by investing activities	(11,071)		(17,308)		(17,086)
Net change in short-term borrowings	1,424		2,331		230
Net increase in bank deposits	5,879		7,476		5,766
Proceeds from issuance of long-term debt	24,076		35,718		41,353
Repayments of long-term debt	(22,354)		(28,598)		(30,833)
Proceeds from Issuance of Common Stock	0
Payments for Repurchase of Convertible Preferred Stock	0
Dividends paid	0		0		0
Capital contributions from parent	448		92		1,634
Net cash provided by (used in) financing activities	2,569		10,192		12,964
Effect of exchange-rate changes on cash and cash equivalents	45		5		18
Cash and Cash Equivalents, Period Increase (Decrease)	(3,152)		(1,249)		(131)
Cash and cash equivalents at beginning of period	4,032		7,276		7,506
Cash and cash equivalents at end of period	2,974		4,032		7,276
Net Cash Provided by (Used in) Discontinued Operations	2,094		(1,995)		(99)
Consolidation, Eliminations [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(9,391)		(1,221)		(1,384)
Purchases of available-for-sale securities	0		0		0
Proceeds from sales of available-for-sale securities	0		0		0
Proceeds from maturities of available-for-sale securities	0		0		0
Net (increase) decrease in finance receivables and loans	0		0		0
Proceeds from Sale of Loans Held-for-investment			0		0
Net (increase) decrease in operating lease assets	0		0		0
Capital contributions to subsidiaries	477		261		2,489
Returns of contributed capital	(1,152)		(2,079)		(1,255)
Cash Divested from Deconsolidation			0
Payments for (Proceeds from) Mortgage Servicing Rights	0
Proceeds from sale of business units, net	0		0		0
Increase (Decrease) in Restricted Cash	0		0		0
Other, net	0		0		0
Net cash (used in) provided by investing activities	271		(5,931)		(1,432)
Net change in short-term borrowings	0		0		0
Net increase in bank deposits	39		(39)		0
Proceeds from issuance of long-term debt	0		0		0
Repayments of long-term debt	0		0		0
Proceeds from Issuance of Common Stock	0
Payments for Repurchase of Convertible Preferred Stock	0
Dividends paid	0		0		0
Capital contributions from parent	(477)		(261)		(2,489)
Net cash provided by (used in) financing activities	9,201		7,177		2,803
Effect of exchange-rate changes on cash and cash equivalents	0		0		0
Cash and Cash Equivalents, Period Increase (Decrease)	81		25		(13)
Cash and cash equivalents at beginning of period	(491)		(516)		(503)
Cash and cash equivalents at end of period	(410)		(491)		(516)
Net Cash Provided by (Used in) Discontinued Operations	0		0		0
Intercompany [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net (increase) decrease in finance receivables and loans	0		0		0
Net Change in Debt, Intercompany	0		0		0
Dividends paid and returns of contributed capital	0		0		0
Intercompany [Member] | Parent [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net (increase) decrease in finance receivables and loans	306		3,879		2,743
Net Change in Debt, Intercompany	1,803		(44)		71
Dividends paid and returns of contributed capital	0		0		0
Intercompany [Member] | Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net (increase) decrease in finance receivables and loans	251		105		11
Net Change in Debt, Intercompany	(271)		(149)		30
Dividends paid and returns of contributed capital	(4,267)		(457)		(207)
Intercompany [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net (increase) decrease in finance receivables and loans	(1,503)		129		(88)
Net Change in Debt, Intercompany	(629)		(3,984)		(2,755)
Dividends paid and returns of contributed capital	(6,275)		(2,843)		(2,431)
Intercompany [Member] | Consolidation, Eliminations [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net (increase) decrease in finance receivables and loans	946		(4,113)		(2,666)
Net Change in Debt, Intercompany	(903)		4,177		2,654
Dividends paid and returns of contributed capital	$ 10,542		$ 3,300		$ 2,638

[1] The amounts are net of cash and cash equivalents of $1.6 billion at December 31, 2013, $147 million at December 31, 2012, and $88 million at December 31, 2011 of business units at the time of disposition.

[2] Cash flows of discontinued operations are reflected within operating, investing, and financing activities in the Consolidated Statement of Cash Flows. The cash balance of these operations is reported as assets of operations held-for-sale on the Consolidated Balance Sheet.