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Securities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Securities |
5. Securities
The amortized cost and fair value of the securities
available-for-sale
and securities held to maturity are summarized in the following
tables.
A summary of gross unrealized losses and related fair values as
of September 30, 2011 and December 31, 2010,
classified as to the length of time the losses have existed
follows:
Gross unrealized losses decreased and gross unrealized gains
increased within the
available-for-sale
portfolio overall in the first nine months of 2011 primarily due
to decreases in interest rates since December 31, 2010,
particularly during the third quarter due to market conditions.
In addition, rates rose significantly toward the end of 2010
driven by inflationary fears and uncertainty about the quantity
and timing of the Federal Reserve’s bond buying program. We
have reviewed the securities for which there is an unrealized
loss in accordance with our accounting policies for
other-than-temporary
impairment. During the three and nine months ended
September 30, 2011, none of our debt securities were
determined to have either initial
other-than-temporary
impairment or changes to previous
other-than-temporary
impairment estimates relating to the credit component and
changes in the non-credit portion for the nine month period
ended September 30, 2011 represent a reversal of a portion
of previously recorded impairment losses that were recognized in
other comprehensive income. During the three and nine months
ended September 30, 2010, 5 and 38 debt securities were
determined to have either initial
other-than-temporary
impairment or changes to previous
other-than-temporary
impairment estimates. The credit loss component of the
applicable debt securities totaling $4 million and
$45 million was recorded as a component of net
other-than-temporary
impairment losses in the accompanying consolidated statement of
income for the three and nine months ended September 30,
2010, respectively, while there was no significant losses in the
non-credit component of such impaired securities reflected in
accumulated other comprehensive income (loss) and changes in the
non-credit portion for the nine month period ended
September 30, 2010 primarily represent a net reversal of a
portion of previously recorded impairment losses recognized in
other comprehensive income.
Except as noted above, we do not consider any other securities
to be
other-than-temporarily
impaired as we expect to recover the amortized cost basis of
these securities and we neither intend nor expect to be required
to sell these
securities prior to recovery, even if that equates to holding
securities until their individual maturities. However,
additional
other-than-temporary
impairments may occur in future periods if the credit quality of
the securities deteriorates.
On-going Assessment for
Other-Than-Temporary
Impairment On a quarterly basis, we perform an
assessment to determine whether there have been any events or
economic circumstances to indicate that a security with an
unrealized loss has suffered
other-than-temporary
impairment. A debt security is considered impaired if its fair
value is less than its amortized cost at the reporting date. If
impaired, we assess whether the unrealized loss is
other-than-temporary.
An unrealized loss is generally deemed to be
other-than-temporary
and a credit loss is deemed to exist if the present value of the
expected future cash flows is less than the amortized cost basis
of the debt security. As a result, the credit loss component of
an
other-than-temporary
impairment write-down for debt securities is recorded in
earnings while the remaining portion of the impairment loss is
recognized, net of tax, in other comprehensive income provided
we do not intend to sell the underlying debt security and it is
more-likely-than-not that we would not have to sell the debt
security prior to recovery.
For all securities held in the
available-for-sale
or
held-to-maturity
portfolio for which unrealized losses have existed for a period
of time, we do not have the intention to sell and believe we
will not be required to sell the securities for contractual,
regulatory or liquidity reasons as of the reporting date. As
debt securities issued by U.S. Treasury,
U.S. Government agencies and government sponsored entities
accounted for 83 percent and 89 percent of total
available-for-sale
and
held-to-maturity
securities as of September 30, 2011 and December 31,
2010, respectively, our assessment for credit loss was
concentrated on private label asset-backed securities.
Substantially all of the private label asset-backed securities
are supported by residential mortgages, home equity loans or
commercial mortgages. Our assessment for credit loss was
concentrated on this particular asset class because of the
following inherent risk factors:
In determining whether a credit loss exists and the period over
which the debt security is expected to recover, we considered
the following factors:
We use a standard valuation model to measure the credit loss for
available-for-sale
and
held-to-maturity
securities. The valuation model captures the composition of the
underlying collateral and the cash flow structure of the
security. Management develops inputs to the model based on
external analyst reports and forecasts and internal credit
assessments. Significant inputs to the model include
delinquencies, collateral types and related contractual
features, estimated rates of default, loss given default and
prepayment assumptions. Using the inputs, the model estimates
cash flows generated from the underlying collateral and
distributes those cash flows to respective tranches of
securities considering credit subordination and other credit
enhancement features. The projected future cash flows
attributable to the debt security held are discounted using the
effective interest rates determined at the original acquisition
date if the security bears a fixed rate of return. The discount
rate is adjusted for the floating index rate for securities
which bear a variable rate of return, such as LIBOR-based
instruments.
The amortized cost and fair value of those asset-backed
securities with unrealized loss of more than 12 months for
which no
other-than-temporary-impairment
has been recognized at September 30, 2011 and
December 31, 2010 are as follows:
Although the fair value of a particular security is below its
amortized cost for more than 12 months, it does not
necessarily result in a credit loss and hence
other-than-temporary
impairment. The decline in fair value may be caused by, among
other things, the illiquidity of the market. To the extent we do
not intend to sell the debt security and it is
more-likely-than-not we will not be required to sell the
security before the recovery of the amortized cost basis, no
other-than-temporary
impairment is deemed to have occurred.
For the nine months ended September 30, 2011 there were no
other-than-temporary
impairment losses recognized related to credit loss. At
September 30, 2011, there are no remaining non-credit
component unrealized loss amounts recognized. The excess of
amortized cost over the present value of expected future cash
flows recognized during the nine months ended September 30,
2010 on our
other-than-temporarily
impaired debt securities, which represents the credit loss
associated with these securities, was $45 million. The
excess of the present value of expected future cash flows over
fair value, representing the non-credit component of the
unrealized loss associated with all
other-than-temporarily
impaired securities, was $154 million at December 31,
2010. Since we did not have the intention to sell the securities
and had sufficient capital and liquidity to hold these
securities until a full recovery of the fair value occurs, only
the credit loss component was reflected in the consolidated
statement of income. The non-credit component of the unrealized
loss was recorded, net of taxes, in other comprehensive income
(loss).
The following table summarizes the roll-forward of credit losses
on debt securities that were
other-than-temporarily
impaired which were recognized in income:
At September 30, 2011, we held 76 individual asset-backed
securities in the
available-for-sale
portfolio, of which 23 were also wrapped by a monoline insurance
company. The asset-backed securities backed by a monoline wrap
comprised $373 million of the total aggregate fair value of
asset-backed securities of $900 million at
September 30, 2011. The gross unrealized losses on these
monoline securities were $124 million at September 30,
2011. We did not take into consideration the value of the
monoline wrap of any non-investment grade monoline insurers as
of September 30, 2011 and, therefore, we only considered
the financial guarantee of monoline insurers on securities for
purposes of evaluating
other-than-temporary
impairment with a fair value of $126 million. One security
wrapped by a below investment grade monoline insurance company
with an aggregate fair value of $1 million was deemed to be
other-than-temporarily
impaired at September 30, 2011.
At December 31, 2010, we held 78 individual asset-backed
securities in the
available-for-sale
portfolio, of which 24 were also wrapped by a monoline insurance
company. The asset-backed securities backed by a monoline wrap
comprised $437 million of the total aggregate fair value of
asset-backed securities of $1.0 billion at
December 31,
2010. The gross unrealized losses on these securities were
$127 million at December 31, 2010. We did not take
into consideration the value of the monoline wrap of any
non-investment grade monoline insurers as of December 31,
2010 and, therefore, we only considered the financial guarantee
of monoline insurers on securities for purposes of evaluating
other-than-temporary
impairment with a fair value of $156 million. Two
securities wrapped by below investment grade monoline insurance
companies with an aggregate fair value of $5 million were
deemed to be
other-than-temporarily
impaired at December 31, 2010.
As discussed above, certain asset-backed securities have an
embedded financial guarantee provided by monoline insurers.
Because the financial guarantee is not a separate and distinct
contract from the asset-backed security, they are considered as
a single unit of account for fair value measurement and
impairment assessment purposes. The monoline insurers are
regulated by the insurance commissioners of the relevant states
and certain monoline insurers that write the financial guarantee
contracts are public companies. In evaluating the extent of our
reliance on investment grade monoline insurance companies,
consideration is given to our assessment of the creditworthiness
of the monoline and other market factors. We perform both a
credit as well as a liquidity analysis on the monoline insurers
each quarter. Our analysis also compares market-based credit
default spreads, when available, to assess the appropriateness
of our monoline insurer’s creditworthiness. Based on the
public information available, including the regulatory reviews
and actions undertaken by the state insurance commissions and
the published financial results, we determine the degree of
reliance to be placed on the financial guarantee policy in
estimating the cash flows to be collected for the purpose of
recognizing and measuring impairment loss.
A credit downgrade to non-investment grade is a key but not the
only factor in determining the credit risk or the monoline
insurer’s ability to fulfill its contractual obligation
under the financial guarantee arrangement. Although a monoline
may have been down-graded by the credit rating agencies or have
been ordered to commute its operations by the insurance
commissioners, it may retain the ability and the obligation to
continue to pay claims in the near term. We evaluate the
short-term liquidity of and the ability to pay claims by the
monoline insurers in estimating the amounts of cash flows
expected to be collected from specific asset-backed securities
for the purpose of assessing and measuring credit loss.
The following table summarizes realized gains and losses on
investment securities transactions attributable to
available-for-sale
and held to maturity securities.
The amortized cost and fair values of securities
available-for-sale
and securities
held-to-maturity
at September 30, 2011, are summarized in the table below by
contractual maturity. Expected maturities differ from
contractual maturities because borrowers have the right to
prepay obligations without prepayment penalties in certain
cases. Securities
available-for-sale
amounts exclude equity securities as they do not have stated
maturities. The table below also reflects the distribution of
maturities of debt securities held at September 30, 2011,
together with the approximate taxable equivalent yield of the
portfolio. The yields shown are calculated by dividing annual
interest income, including the accretion of discounts and the
amortization of premiums, by the amortized cost of securities
outstanding at September 30, 2011. Yields on tax-exempt
obligations have been computed on a taxable equivalent basis
using applicable statutory tax rates.
Investments in Federal Home Loan Bank (“FHLB”) stock
and Federal Reserve Bank (“FRB”) stock of
$133 million and $483 million, respectively, were
included in other assets at September 30, 2011. Investments
in FHLB stock and FRB stock of $119 million and
$477 million, respectively, were included in other assets
at December 31, 2010.
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