Consolidated Statement Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income (loss)	$ 973		$ 257
Depreciation, Amortization and Accretion, Net	2,133		2,106
Changes In Fair Value Of Mortgage Servicing Rights	0		102
Provision for Loan Losses Expensed Including Discontinued Operations	302		431
Gain Loss on Sales of Loans Net Including Discontinued Operations	(6)		(52)
Available-for-sale Securities Gross Realized Gain Loss Excluding Otti Including Disc Ops	(129)		(156)
Gains (Losses) on Extinguishment of Debt	46		42
Payments for Origination and Purchases of Loans Held-for-sale	0		(6,234)
Proceeds from Sale of Loans Held-for-sale	59		8,647
Total Charge Recorded Related to ResCap Bankruptcy	(150)		1,350
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	7		(932)
Deferred income taxes	174		(604)
Interest payable	(346)		51
Other assets	42		2,943
Other liabilities	(529)		(3,456)
Other, net	(118)		(130)
Net cash provided by (used in) operating activities	2,458		4,365
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of available-for-sale securities	(4,117)		(12,747)
Proceeds from sales of available-for-sale securities	2,974		4,721
Proceeds from maturities of available-for-sale securities	1,877		3,893
Net (increase) decrease in finance receivables and loans	(1,267)		2,744
Proceeds from Sale of Loans Held-for-investment	1,557		0
Purchases of operating lease assets	(7,770)		(7,251)
Disposals of operating lease assets	4,505		2,080
Proceeds from Sale of Mortgage Servicing Rights (MSR)	0		911
Proceeds from sale of business units, net	47	[1]	6,937	[1]
Increase (Decrease) in Restricted Cash	2,128		2,297
Other, net	71		(55)
Net cash (used in) provided by investing activities	5		3,530
Net Cash Provided by (Used in) Financing Activities [Abstract]
Net change in short-term borrowings	(3,298)		(936)
Net increase in bank deposits	3,501		4,057
Proceeds from issuance of long-term debt	18,942		13,347
Repayments of long-term debt	(21,239)		(26,725)
Dividends paid	(200)		(601)
Net cash provided by (used in) financing activities	(2,294)		(10,858)
Effect of exchange-rate changes on cash and cash equivalents	(1)		47
Cash and Cash Equivalents, Period Increase (Decrease)	168		(2,916)
Net Cash Provided by (Used in) Discontinued Operations	0	[1],[2]	1,952	[1],[2]
Cash and cash equivalents at beginning of period	5,531		7,513
Cash and cash equivalents at end of period	5,699		6,549
Supplemental Cash Flow Information [Abstract]
Interest	2,380		2,890
Income taxes	$ 13		$ 67

[1] The amount at September 30, 2013, is net of cash and cash equivalents of $1,418 million of business units at the time of disposition.

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