Fair Value (Details 3) (Residential mortgage loans held for sale [Member], USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Residential mortgage loans held for sale [Member]
Changes in estimated fair value residential mortgage loans held-for-sale
Instrument-specific credit risk based on changes in credit spreads for non-agency loans and adjustments in individual loan quality	$ (2)	$ (1)	$ (3)	$ 0
Other changes in estimated fair value	115	134	179	261
Total gains (losses) recognized in other revenues	$ 113	$ 133	$ 176	$ 261

Changes in estimated fair value residential mortgage loans held-for-sale Abstract.

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- Definition

This item represents the estimated amount of gains or losses included in earnings during the period attributable to changes in instrument-specific credit risk arising from loans and other receivables held as assets and other changes in estimated fair value, which were recognized in other revenues.

+ Details

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- Definition

This item represents, for each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings during the period and in which line in the income statement those gains and losses are reported. This item may also include amounts of gains and losses for other items measured at fair value, but for which the fair value option has not been elected (for instance, items required to be measured at fair value).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 19
-Subparagraph a

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 19
-Subparagraph c(1)

+ Details

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