The following table presents total loans outstanding by portfolio segment and class of financing receivable. Outstanding balances include a total net reduction of $7.4 billion and $9.3 billion at December 31, 2012 and December 31, 2011, respectively, for unearned income, net deferred loan fees, and unamortized discounts and premiums. Outstanding balances also include PCI loans net of any remaining purchase accounting adjustments. Information about PCI loans is presented separately in the “Purchased Credit-Impaired Loans” section of this Note.

• Substantially all of our foreign loan portfolio is commercial loans. Loans are classified as foreign if the borrower's primary address is outside of the United States.

Loan Concentrations

Loan concentrations may exist when there are amounts loaned to borrowers engaged in similar activities or similar types of loans extended to a diverse group of borrowers that would cause them to be similarly impacted by economic or other conditions. At December 31, 2012 and 2011, we did not have concentrations representing 10% or more of our total loan portfolio in domestic commercial and industrial loans and lease financing by industry or CRE loans (real estate mortgage and real estate construction) by state or property type. Our real estate 1-4 family mortgage loans to borrowers in the state of California represented approximately 13% of total loans at both December 31, 2012 and 2011. For the years ended 2012 and 2011, 2% and 3% of the amounts were PCI loans, respectively. These loans are generally diversified among the larger metropolitan areas in California, with no single area consisting of more than 3% of total loans. We continuously monitor changes in real estate values and underlying economic or market conditions for all geographic areas of our real estate 1-4 family mortgage portfolio as part of our credit risk management process.

Some of our real estate 1-4 family first and junior lien mortgage loans include an interest-only feature as part of the loan terms. These interest-only loans were approximately 18% of total loans at December 31, 2012, and 21% at December 31, 2011. Substantially all of these interest-only loans at origination were considered to be prime or near prime. We do not offer option adjustable-rate mortgage (ARM) products, nor do we offer variable-rate mortgage products with fixed payment amounts, commonly referred to within the financial services industry as negative amortizing mortgage loans. We acquired an option payment loan portfolio (Pick-a-Pay) from Wachovia at December 31, 2008. A majority of the portfolio was identified as PCI loans. Since the acquisition, we have reduced our exposure to the option payment portion of the portfolio through our modification efforts and loss mitigation actions. At December 31, 2012, approximately 4 percent of total loans remained with the payment option feature compared with 10 percent at December 31, 2008.

       Our first and junior lien lines of credit products generally have a draw period of 10 years with variable interest rates and payment options during the draw period of (1) interest only or (2) 1.5% of total outstanding balance. During the draw period, the borrower has the option of converting all or a portion of the line from a variable interest rate to a fixed rate with terms including interest-only payments for a fixed period between three to seven years or a fully amortizing payment with a fixed period between five to 30 years. At the end of the draw period, a line of credit generally converts to an amortizing payment loan with repayment terms of up to 30 years based on the balance at time of conversion. At December 31, 2012, our lines of credit portfolio had an outstanding balance of $84.6 billion, of which $2.1 billion (2%) is in its amortization period, another $8.2 billion, or 10%, of our total outstanding balance, will reach their end of draw period during 2013 through 2014, $29.4 billion, or 35%, during 2015 through 2017, and $44.9 billion, or 53%, will convert in subsequent years. This portfolio had unfunded credit commitments of $77.8 billion at December 31, 2012. The lines that enter their amortization period may experience higher delinquencies and higher loss rates than the ones in their draw period. At December 31, 2012, $223 million, or 11%, of outstanding lines of credit that are in their amortization period were 30 or more days past due, compared with $1.9 billion, or 2%, for lines in their draw period. In anticipation of our customer's reaching their contractual end of draw period, we have created a process to help borrowers effectively make the transition from interest-only to fully-amortizing payments.

Loan Purchases, Sales, and Transfers

The following table summarizes the proceeds paid or received for purchases and sales of loans and transfers from loans held for investment to mortgages/loans held for sale at lower of cost or market. This loan activity primarily includes loans added in business combinations and asset acquisitions, as well as purchases or sales of commercial loan participation interests, whereby we receive or transfer a portion of a loan after origination. The table excludes PCI loans and loans recorded at fair value, including loans originated for sale because their loan activity normally does not impact the allowance for credit losses.

• The “Purchases” and “Transfers to MHFS/LHFS" categories exclude activity in government insured/guaranteed loans. As servicer, we are able to buy delinquent insured/guaranteed loans out of the Government National Mortgage Association (GNMA) pools. These loans have different risk characteristics from the rest of our consumer portfolio, whereby this activity does not impact the allowance for loan losses in the same manner because the loans are predominantly insured by the Federal Housing Administration (FHA) or guaranteed by the Department of Veterans Affairs (VA). On a net basis, such purchases net of transfers to MHFS were $9.8 billion and $10.4 billion for the year ended December 31, 2012 and 2011, respectively.

Commitments to Lend

A commitment to lend is a legally binding agreement to lend funds to a customer, usually at a stated interest rate, if funded, and for specific purposes and time periods. We generally require a fee to extend such commitments. Certain commitments are subject to loan agreements with covenants regarding the financial performance of the customer or borrowing base formulas that must be met before we are required to fund the commitment. We may reduce or cancel consumer commitments, including home equity lines and credit card lines, in accordance with the contracts and applicable law.

When we make commitments, we are exposed to credit risk. The maximum credit risk for these commitments will generally be lower than the contractual amount because a significant portion of these commitments are expected to expire without being used by the customer. In addition, we manage the potential risk in commitments to lend by limiting the total amount of arrangements, both by individual customer and in total, by monitoring the size and maturity structure of these commitment portfolios and by applying the same credit standards as for all of our credit activities. In some cases, we participate a portion of our commitment to others in an arrangement that reduces our contractual commitment amount. We also originate multipurpose lending commitments under which borrowers have the option to draw on the facility in one of several forms, including a standby letter of credit. See Note 14 for information on standby letters of credit.

       For certain loans and commitments to lend, we may require collateral or a guarantee, based on our assessment of a customer's credit risk. We may require various types of collateral, including commercial and consumer real estate, autos, other short-term liquid assets such as accounts receivable or inventory and long-lived asset, such as equipment and other business assets. Collateral requirements for each customer may vary according to the specific credit underwriting, including terms and structure of loans funded immediately or under a commitment to fund at a later date.

       The contractual amount of our unfunded credit commitments, net of participations and net of all standby and commercial letters of credit issued under the terms of these commitments, is summarized by portfolio segment and class of financing receivable in the following table:

Allowance for Credit Losses

The allowance for credit losses consists of the allowance for loan losses and the allowance for unfunded credit commitments. Changes in the allowance for credit losses were:

• Certain impaired loans with an allowance calculated by discounting expected cash flows using the loan's effective interest rate over the remaining life of the loan recognize reductions in the allowance as interest income.
• The year ended December 31, 2012, includes $888 million resulting from the OCC guidance issued in third quarter 2012, which requires consumer loans discharged in bankruptcy to be placed on nonaccrual status and written down to net realizable collateral value, regardless of their delinquency status.
• For PCI loans, charge-offs are only recorded to the extent that losses exceed the purchase accounting estimates.
• Includes $693 million for the year ended December 31, 2010, related to the adoption of consolidation accounting guidance on January 1, 2010.
• The allowance for credit losses includes $117 million, $231 million, $298 million and $333 million at December 31, 2012, 2011, 2010 and 2009, respectively, related to PCI loans acquired from Wachovia. Loans acquired from Wachovia are included in total loans net of related purchase accounting net write-downs.

The following table summarizes the activity in the allowance for credit losses by our commercial and consumer portfolio segments.

The following table disaggregates our allowance for credit losses and recorded investment in loans by impairment methodology.

• Represents loans collectively evaluated for impairment in accordance with Accounting Standards Codification (ASC) 450-20, Loss Contingencies (formerly FAS 5), and pursuant to amendments by ASU 2010-20 regarding allowance for non-impaired loans.
• Represents loans individually evaluated for impairment in accordance with ASC 310-10, Receivables (formerly FAS 114), and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans.
• Represents the allowance and related loan carrying value determined in accordance with ASC 310-30, Receivables – Loans and Debt Securities Acquired with Deteriorated Credit Quality (formerly SOP 03-3) and pursuant to amendments by ASU 2010-20 regarding allowance for PCI loans.

Credit Quality

We monitor credit quality as indicated by evaluating various attributes and utilize such information in our evaluation of the appropriateness of the allowance for credit losses. The following sections provide the credit quality indicators we most closely monitor. See the “Purchased Credit-Impaired Loans” section of this Note for credit quality information on our PCI portfolio.

       The majority of credit quality indicators are based on December 31, 2012 information, with the exception of updated Fair Isaac Corporation (FICO) scores and updated loan-to-value (LTV)/combined LTV (CLTV), which are obtained at least quarterly. Generally, these indicators are updated in the second month of each quarter, with updates no older than September 30, 2012.

Commercial Credit Quality Indicators In addition to monitoring commercial loan concentration risk, we manage a consistent process for assessing commercial loan credit quality. Generally, commercial loans are subject to individual risk assessment using our internal borrower and collateral quality ratings. Our ratings are aligned to Pass and Criticized categories. The Criticized category includes Special Mention, Substandard, and Doubtful categories which are defined by bank regulatory agencies.

       The following table provides a breakdown of outstanding commercial loans by risk category. Of the $21.0 billion in criticized commercial real estate (CRE) loans, $4.3 billion has been placed on nonaccrual status and written down to net realizable collateral value. CRE loans have a high level of monitoring in place to manage these assets and mitigate loss exposure.

       The following table provides past due information for commercial loans, which we monitor as part of our credit risk management practices.

Consumer Credit Quality Indicators We have various classes of consumer loans that present unique risks. Loan delinquency, FICO credit scores and LTV for loan types are common credit quality indicators that we monitor and utilize in our evaluation of the appropriateness of the allowance for credit losses for the consumer portfolio segment.

Many of our loss estimation techniques used for the allowance for credit losses rely on delinquency-based models; therefore, delinquency is an important indicator of credit quality and the establishment of our allowance for credit losses.

The following table provides the outstanding balances of our consumer portfolio by delinquency status.

• Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA and student loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under the Federal Family Education Loan Program (FFELP). Loans insured/guaranteed by the FHA/VA and 90+ DPD totaled $20.2 billion at December 31, 2012, compared with $18.5 billion at December 31, 2011. Student loans 90+ DPD totaled $1.1 billion at December 31, 2012, compared with $1.3 billion at December 31, 2011.

       Of the $10.3 billion of loans not government insured/guaranteed that are 90 days or more past due at December 31, 2012, $1.1 billion was accruing, compared with $11.5 billion past due and $1.5 billion accruing at December 31, 2011.

       Real estate 1-4 family first mortgage loans 180 days or more past due totaled $6.7 billion, or 3.0% of total first mortgages (excluding PCI), at December 31, 2012, compared with $6.7 billion, or 3.3%, at December 31, 2011.

       The following table provides a breakdown of our consumer portfolio by updated FICO. We obtain FICO scores at loan origination and the scores are updated at least quarterly. The majority of our portfolio is underwritten with a FICO score of 680 and above. FICO is not available for certain loan types and may not be obtained if we deem it unnecessary due to strong collateral and other borrower attributes, primarily securities-based margin loans of $5.4 billion at December 31, 2012, and $5.0 billion at December 31, 2011.

• Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA and student loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under FFELP.

       LTV refers to the ratio comparing the loan's unpaid principal balance to the property's collateral value. CLTV refers to the combination of first mortgage and junior lien mortgage (including unused line amounts for credit line products) ratios. LTVs and CLTVs are updated quarterly using a cascade approach which first uses values provided by automated valuation models (AVMs) for the property. If an AVM is not available, then the value is estimated using the original appraised value adjusted by the change in Home Price Index (HPI) for the property location. If an HPI is not available, the original appraised value is used. The HPI value is normally the only method considered for high value properties, generally with an original value of $1 million or more, as the AVM values have proven less accurate for these properties.

       The following table shows the most updated LTV and CLTV distribution of the real estate 1-4 family first and junior lien mortgage loan portfolios. In recent years, the residential real estate markets experienced significant declines in property values and several markets, particularly California and Florida have experienced more significant declines than the national decline. These trends are considered in the way that we monitor credit risk and establish our allowance for credit losses. LTV does not necessarily reflect the likelihood of performance of a given loan, but does provide an indication of collateral value. In the event of a default, any loss should be limited to the portion of the loan amount in excess of the net realizable value of the underlying real estate collateral value. Certain loans do not have an LTV or CLTV primarily due to industry data availability and portfolios acquired from or serviced by other institutions.

• Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV.
• Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.

Nonaccrual Loans The following table provides loans on nonaccrual status. PCI loans are excluded from this table due to the existence of the accretable yield.

• Includes LHFS of $16 million and $25 million at December 31, 2012 and 2011, respectively.
• Includes MHFS of $336 million and $301 million at December 31, 2012 and 2011, respectively.
• Includes $960 million at December 31, 2012, resulting from the Interagency Guidance issued in 2012, which requires performing junior liens to be classified as nonaccrual if the related first mortgage is nonaccruing.
• Includes $1.8 billion at December 31, 2012, consisting of $1.4 billion of first mortgages, $205 million of junior liens and $140 million of auto and other loans, resulting from the OCC guidance issued in third quarter 2012, which requires performing consumer loans discharged in bankruptcy to be placed on nonaccrual status and written down to net realizable collateral value, regardless of their delinquency status.

LOANS 90 Days OR MORE Past Due and Still Accruing Certain loans 90 days or more past due as to interest or principal are still accruing, because they are (1) well-secured and in the process of collection or (2) real estate 1-4 family mortgage loans or consumer loans exempt under regulatory rules from being classified as nonaccrual until later delinquency, usually 120 days past due. PCI loans of $6.0 billion at December 31, 2012, and $8.7 billion at December 31, 2011, are not included in these past due and still accruing loans even though they are 90 days or more contractually past due. These PCI loans are considered to be accruing due to the existence of the accretable yield and not based on consideration given to contractual interest payments. Loans 90 days or more past due and still accruing whose repayments are predominantly insured by the FHA or guaranteed by the VA for mortgages and the U.S. Department of Education for student loans under the FFELP were $21.8 billion at December 31, 2012, up from $20.5 billion at December 31, 2011.

       The following table shows non-PCI loans 90 days or more past due and still accruing by class for loans not government insured/guaranteed

• Represents loans whose repayments are predominantly insured by the FHA or guaranteed by the VA.
• Includes mortgage loans held for sale 90 days or more past due and still accruing.
• Represents loans whose repayments are predominantly guaranteed by agencies on behalf of the U.S. Department of Education under the FFELP.
• The balance at December 31, 2012, includes the impact from the transfer of certain 1-4 family junior lien mortgages to nonaccrual loans in accordance with the Interagency Guidance issued on January 31, 2012.

Impaired Loans The table below summarizes key information for impaired loans. Our impaired loans predominantly include loans on nonaccrual status in the commercial portfolio segment and loans modified in a TDR, whether on accrual or nonaccrual status. These impaired loans generally have estimated losses which are included in the allowance for credit losses. Impaired loans exclude PCI loans. Based on clarifying guidance from the Securities and Exchange Commission (SEC) received in December 2011, we now classify trial modifications as TDRs at the beginning of the trial period. The table below includes trial modifications that totaled $705 million at December 31, 2012, and $651 million at December 31, 2011.

• The unpaid principal balance for commercial loans at December 31, 2011, includes $2.5 billion of commercial and industrial, $1.1 billion of real estate mortgage, $1.8 billion of real estate construction and $157 million of lease financing and foreign loans that have been fully charged off and therefore have no recorded investment. The unpaid principal balance for loans with no recorded investment has been excluded from the amounts disclosed at December 31, 2012.

       Commitments to lend additional funds on loans whose terms have been modified in a TDR amounted to $421 million at December 31, 2012, and $3.8 billion at December 31, 2011.

       The following tables provide the average recorded investment in impaired loans and the amount of interest income recognized on impaired loans by portfolio segment and class.

• Includes interest recognized on accruing TDRs, interest recognized related to certain impaired loans which have an allowance calculated using discounting, and amortization of purchase accounting adjustments related to certain impaired loans. See footnote 1 to the table of changes in the allowance for credit losses.

TROUBLED DEBT RESTRUCTURINGs (TDRs) When, for economic or legal reasons related to a borrower's financial difficulties, we grant a concession for other than an insignificant period of time to a borrower that we would not otherwise consider, the related loan is classified as a TDR. We do not consider any loans modified through a loan resolution such as foreclosure or short sale to be a TDR.

       We may require some borrowers experiencing financial difficulty to make trial payments generally for a period of three to four months, according to the terms of a planned permanent modification, to determine if they can perform according to those terms. Based on clarifying guidance from the SEC in December 2011, these arrangements represent trial modifications, which we classify and account for as TDRs. While loans are in trial payment programs, their original terms are not considered modified and they continue to advance through delinquency status and accrue interest according to their original terms. The planned modifications for these arrangements predominantly involve interest rate reductions or other interest rate concessions, however, the exact concession type and resulting financial effect are usually not finalized and do not take effect until the loan is permanently modified. The trial period terms are developed in accordance with our proprietary programs or the U.S. Treasury's Making Homes Affordable programs for real estate 1-4 family first lien (i.e. Home Affordable Modification Program – HAMP) and junior lien (i.e. Second Lien Modification Program – 2MP) mortgage loans.

       At December 31, 2012, the loans in trial modification period were $402 million under HAMP, $45 million under 2MP and $258 million under proprietary programs, compared with $421 million, $46 million and $184 million at December 31, 2011, respectively. Trial modifications with a recorded investment of $429 million at December 31, 2012, and $310 million at December 31, 2011, were accruing loans and $276 million and $341 million, respectively, were nonaccruing loans. Our recent experience is that most of the mortgages that enter a trial payment period program are successful in completing the program requirements and are then permanently modified at the end of the trial period. As previously discussed, our allowance process considers the impact of those modifications that are probable to occur including the associated credit cost and related re-default risk.

       The following table summarizes our TDR modifications for the periods presented by primary modification type and includes the financial effects of these modifications.

       The table below summarizes permanent modification TDRs that have defaulted in the current period within 12 months of their permanent modification date. We are reporting these defaulted TDRs based on a payment default definition of 90 days past due for the commercial portfolio segment and 60 days past due for the consumer portfolio segment.

Purchased Credit-Impaired Loans

Substantially all of our PCI loans were acquired from Wachovia on December 31, 2008. The following table presents PCI loans net of any remaining purchase accounting adjustments. Real estate 1-4 family first mortgage PCI loans are predominantly Pick-a-Pay loans.

Accretable Yield The excess of cash flows expected to be collected over the carrying value of PCI loans is referred to as the accretable yield and is recognized in interest income using an effective yield method over the remaining life of the loan, or pools of loans. The accretable yield is affected by:

• changes in interest rate indices for variable rate PCI loans – expected future cash flows are based on the variable rates in effect at the time of the regular evaluations of cash flows expected to be collected;
• changes in prepayment assumptions – prepayments affect the estimated life of PCI loans which may change the amount of interest income, and possibly principal, expected to be collected; and
• changes in the expected principal and interest payments over the estimated life – updates to expected cash flows are driven by the credit outlook and actions taken with borrowers. Changes in expected future cash flows from loan modifications are included in the regular evaluations of cash flows expected to be collected.

During 2012, our expectation of cash flows was favorably impacted by lower expected defaults and losses as a result of observed strengthening in housing prices and the impact of our modification efforts. These factors favorably impacted probability of default and loss severity, reducing our expected loss on PCI loans, primarily Pick-a-Pay, and increasing the estimated weighted-average remaining life of the PCI portfolios and resulting expected interest to be collected. Accordingly, we increased accretable yield for $1.1 billion of transfers out of nonaccretable difference for the increase in principal expected to be collected, and by $3.6 billion for the increase in interest income expected to be collected.

The change in the accretable yield related to PCI loans is presented in the following table.

• Includes accretable yield released as a result of settlements with borrowers, which is included in interest income.
• Includes accretable yield released as a result of sales to third parties, which is included in noninterest income.
• Represents changes in cash flows expected to be collected due to the impact of modifications, changes in prepayment assumptions and changes in interest rates on variable rate PCI loans

PCI Allowance Based on our regular evaluation of estimates of cash flows expected to be collected, we may establish an allowance for a PCI loan or pool of loans, with a charge to income though the provision for losses. The following table summarizes the changes in allowance for PCI loan losses.

Commercial PCI Credit Quality Indicators The following

table provides a breakdown of commercial PCI loans by risk category.