Acquisition (Acquired Impaired Loan Portfolio at Fair Value) (Details) (Impaired Loans [Member], USD $) In Millions	Jul. 28, 2011
Impaired Loans [Member]
Contractually required principal and interest	$ 322
Contractual cash flows not expected to be collected (nonaccretable difference)	165
Expected cash flows	157
Interest component of expected cash flows (accretable yield)	26
Estimated fair value at acquisition	$ 131

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+ Details

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- Definition

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 03-3
-Paragraph 16
-Subparagraph a(3)

+ Details

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- Definition

For 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, the investor's estimate, at acquisition, of the amount and timing of undiscounted principal, interest, and other cash flows expected to be collected. This would be the investor's best estimate of cash flows, including the effect of prepayments if considered, that is used in determining the acquisition price, and, in a business combination, the investor's estimate of fair value for purposes of acquisition price allocation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 03-3
-Paragraph 16
-Subparagraph a(3)

+ Details

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- Definition

For 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, the total undiscounted amount of all uncollected contractual principal and contractual interest payments both past due and scheduled for the future, adjusted for the timing of prepayments, if considered, less any reduction by the investor at the acquisition date. For an acquired asset-backed security with required contractual payments of principal and interest, the "contractually required payments receivable" is represented by the contractual terms of the security. However, when contractual payments of principal and interest are not specified by the security, the investor should look to the contractual terms of the underlying loans or assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 03-3
-Paragraph 16
-Subparagraph a(3)

+ Details

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