Loans Held-For-Sale, Net (Schedule Of Loans Held-For-Sale) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Loans Receivable Held-for-sale [Line Items]
Loans Held-for-sale, consumer automobile	$ 0	$ 425
Mortgage loans held-for-sale	2,490	8,112
Loans Held-for-sale, Commercial and Industrial	86	20
Total loans held-for-sale	2,576	8,557
First Mortgage [Member]
Loans Receivable Held-for-sale [Line Items]
Mortgage loans held-for-sale	2,490	7,372
Home Equity [Member]
Loans Receivable Held-for-sale [Line Items]
Mortgage loans held-for-sale	0	740
Domestic [Member]
Loans Receivable Held-for-sale [Line Items]
Loans Held-for-sale, consumer automobile	0	425
Mortgage loans held-for-sale	2,490	8,100
Loans Held-for-sale, Commercial and Industrial	86	20
Total loans held-for-sale	2,576	8,545
Domestic [Member] \| First Mortgage [Member]
Loans Receivable Held-for-sale [Line Items]
Mortgage loans held-for-sale	2,490	7,360
Domestic [Member] \| Home Equity [Member]
Loans Receivable Held-for-sale [Line Items]
Mortgage loans held-for-sale	0	740
Foreign [Member]
Loans Receivable Held-for-sale [Line Items]
Loans Held-for-sale, consumer automobile	0	0
Mortgage loans held-for-sale	0	12
Loans Held-for-sale, Commercial and Industrial	0	0
Total loans held-for-sale	0	12
Foreign [Member] \| First Mortgage [Member]
Loans Receivable Held-for-sale [Line Items]
Mortgage loans held-for-sale	0	12
Foreign [Member] \| Home Equity [Member]
Loans Receivable Held-for-sale [Line Items]
Mortgage loans held-for-sale	0	0
Fair Value Option Election, Fair Value [Member]
Loans Receivable Held-for-sale [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	2,490	3,919
Loans Held For Sale Member
Loans Receivable Held-for-sale [Line Items]
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	$ 26	$ 221

Carrying amount of mortgage loans to individuals not classified as held for investment but are held-for-sale.

Reflects the carrying amount of loans held for sale not otherwise specified in the existing taxonomy.

The aggregate carrying amount of loans receivable that will be sold to other entities. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Such loans are stated at the lower of cost or market, or elected fair value. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 65

-Paragraph 4, 5, 6, 7, 9, 12, 28, 29

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a

-Article 9

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 65

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 8

-Subparagraph h

-Chapter V

-Subsection I

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 35

-Paragraph 49

-URI http://asc.fasb.org/extlink&oid=16382521&loc=d3e3084-111518

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6490209&loc=d3e48214-111002

+ Details