Consolidated Statement Of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income (loss)	$ 361		$ 1,196		$ (157)
Depreciation, Amortization and Accretion, Net	2,864		2,381		2,713
Changes In Fair Value Of Mortgage Servicing Rights	101		677		1,606
Provision for Loan Losses Expensed Including Discontinued Operations	570		405		217
Gain Loss on Sales of Loans Net Including Discontinued Operations	(55)		(527)		(459)
Available-for-sale Securities Gross Realized Gain Loss Excluding Otti Including Disc Ops	(182)		(177)		(294)
Gain Loss on Extinguishment of Debt Including Discontinued Operations	59		148		64
Payments for Origination and Purchases of Loans Held-for-sale	(6,235)		(33,075)		(60,270)
Proceeds from Sale of Loans Held-for-sale	8,696		34,073		61,187
Total Charge Recorded Related to ResCap Bankruptcy	(600)		1,192		0
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	(666)		(28)		0
Trading assets	0		595		(483)
Deferred income taxes	(671)		(1,491)		(198)
Interest payable	(39)		(311)		(98)
Other assets	2,592		802		(311)
Other liabilities	(3,860)		(595)		1,390
Other, net	(434)		(216)		586
Net cash provided by (used in) operating activities	2,501		5,049		5,493
Net Cash Provided by (Used in) Investing Activities [Abstract]
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
Purchases of operating lease assets	(9,196)		(7,444)		(6,528)
Disposals of operating lease assets	2,964		1,745		5,517
Payments for (Proceeds from) Mortgage Servicing Rights	911		0		0
Proceeds from sale of business units, net	7,444	[1]	516	[1]	50	[1]
Net decrease in cash and cash equivalents from deconsolidation of ResCap	0		(539)		0
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 Cash Provided by (Used in) Financing Activities [Abstract]
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)
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
Net Cash Provided by (Used in) Discontinued Operations	2,094	[1],[2]	(1,995)	[1],[2]	(99)	[1],[2]
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
Cash and cash equivalents of business units at the time of disposition	1,586		147		88
Supplemental Cash Flow Information [Abstract]
Interest	3,827		5,311		5,630
Income taxes	75		404		507
Transfer of mortgage servicing rights into trading assets through certification	0		0		266
Proceeds from sales and repayments of mortgage loans held-for-investment originally designated as held-for-sale	$ 51		$ 127		$ 241

[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.