Purchased Loans (Purchase Loan Balances) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 5,557	$ 6,106	$ 6,778
Purchased Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Outstanding Balance	5,796	6,485
Recorded Investment	5,557	6,106
Carrying Value	4,671	5,102
Purchased Impaired Loans [Member] \| Commercial [Member]
Financing Receivable, Impaired [Line Items]
Outstanding Balance	218	282
Recorded Investment	109	157
Carrying Value	87	131
Purchased Impaired Loans [Member] \| Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Outstanding Balance	458	655
Recorded Investment	370	516
Carrying Value	284	409
Purchased Impaired Loans [Member] \| Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Outstanding Balance	2,777	3,025
Recorded Investment	2,928	3,121
Carrying Value	2,428	2,591
Purchased Impaired Loans [Member] \| Consumer [Member]
Financing Receivable, Impaired [Line Items]
Outstanding Balance	2,343	2,523
Recorded Investment	2,150	2,312
Carrying Value	1,872	1,971
Total commercial lending [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment			968
Total commercial lending [Member] \| Purchased Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Outstanding Balance	676	937
Recorded Investment	479	673
Carrying Value	371	540
Total consumer lending [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment			5,810
Total consumer lending [Member] \| Purchased Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Outstanding Balance	5,120	5,548
Recorded Investment	5,078	5,433
Carrying Value	$ 4,300	$ 4,562

The carrying value as of the reporting period of loans not accounted for as debt securiites with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments.

No definition available.

+ Details

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- Definition

The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 15

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

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- Definition

The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

+ Details

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