Change in the estimate of cash flows expected to be collected, which results in an increase or decrease in accretable yield, due to effect of changes in interest rate indices. This relates to a loan accounted for as an available-for-sale debt security, with evidence of deterioration of credit quality since origination that was 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.

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Change in the estimate of cash flows expected to be collected, which results in an increase or decrease in accretable yield. This relates to a loan accounted for as an available-for-sale debt security, with evidence of deterioration of credit quality since origination that was 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.

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The recorded investment of the securities at the acquisition date. This relates to securities accounted for as available-for-sale 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.

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-Publisher FASB
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The aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans accounted for as available-for-sale 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.

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Current period recognition of the accretion of the excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This element relates to loans accounted for as available-for-sale 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.

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Increases in the aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans accounted for as available-for-sale 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.

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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. This relates to loans accounted for as available-for-sale 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.

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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. This relates to loans accounted for as available-for-sale 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.

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Investments (Details 9) (USD $) In Millions			3 Months Ended
Investments (Details 9) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2011 Purchased Credit Impaired (PCI) Securities	Jun. 30, 2011 Bonds available for sale	Dec. 31, 2010 Bonds available for sale
Purchased Credit Impaired (PCI) Securities
Contractually required payments (principal and interest)			$ 9,980
Cash flows expected to be collected			7,507
Recorded investment in acquired securities			5,091
Outstanding principal balance			7,351
Amortized cost			5,008
Fair value	253,488	232,883	4,797	249,360	228,302
Changes in activity for the accretable yield on PCI securities:
Newly purchased PCI securities			2,416
Accretion			(77)
Effect of changes in interest rate indices			(8)
Net reclassification from (to) non-accretable difference, including effects of prepayments			(23)
Balance, end of period			$ 2,308