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ALLOWANCE FOR CREDIT LOSSES, NONPERFORMING ASSETS, AND CONCENTRATIONS OF CREDIT RISK | 9 Months Ended
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Sep. 30, 2018
Receivables [Abstract] |
ALLOWANCE FOR CREDIT LOSSES, NONPERFORMING ASSETS, AND CONCENTRATIONS OF CREDIT RISK | ALLOWANCE FOR CREDIT LOSSES, NONPERFORMING ASSETS, AND CONCENTRATIONS OF CREDIT RISK The ACL consists of the ALLL and the reserve for unfunded commitments. It is increased through a provision for credit losses that is charged to earnings, based on the Company’s quarterly evaluation of the loan and lease portfolio and related commitments, and is reduced by net charge-offs and the ALLL associated with sold loans. See Note 5 “Allowance for Credit Losses, Nonperforming Assets, and Concentrations of Credit Risk” to the Company’s audited Consolidated Financial Statements in the Annual Report on Form 10-K for the year ended December 31, 2017, for a detailed discussion of the ALLL reserve methodology and estimation techniques. On a quarterly basis, the Company reviews and refines its estimate of the ACL, taking into consideration changes in portfolio size and composition, historical loss experience, internal risk ratings, current economic conditions, industry performance trends and other pertinent information. As of September 30, 2018, there were no material changes in assumptions or estimation techniques compared with prior periods that impacted the determination of the current period’s ALLL and the reserve for unfunded lending commitments. As of December 31, 2017, the Company enhanced the method for assessing various qualitative risks, factors and events that may not be measured in the modeled results. The new methodology includes a statistical analysis of prior charge-off rates on a historical basis combined with a qualitative assessment based on quantitative measures affecting the determination of incurred losses in the loan and lease portfolio, and provides better alignment of the qualitative ALLL to the commercial and retail loan portfolios. The impact of the change was an increase of approximately $50 million to the commercial ALLL with a corresponding decrease to the retail ALLL; there was not a significant impact on the total qualitative ALLL as of December 31, 2017. A summary of changes in the ACL is presented below:
| Three Months Ended September 30, 2018 |  | Nine Months Ended September 30, 2018
(in millions) | Commercial |  | Retail |  | Total |  |  | Commercial |  | Retail |  | Total |
Allowance for loan and lease losses, beginning of period |  | $715 |  |  | $538 |  |  | $1,253 |  |  |  | $685 |  |  | $551 |  |  | $1,236 |
Charge-offs | (18 | ) | (109 | ) | (127 | ) |  | (35 | ) | (328 | ) | (363 | )
Recoveries | 2 |  | 39 |  | 41 |  |  | 10 |  | 121 |  | 131 |
Net charge-offs | (16 | ) | (70 | ) | (86 | ) |  | (25 | ) | (207 | ) | (232 | )
Provision charged to income | 8 |  | 67 |  | 75 |  |  | 47 |  | 191 |  | 238 |
Allowance for loan and lease losses, end of period | 707 |  | 535 |  | 1,242 |  |  | 707 |  | 535 |  | 1,242 |
Reserve for unfunded lending commitments, beginning of period | 88 |  | — |  | 88 |  |  | 88 |  | — |  | 88 |
Provision for unfunded lending commitments | 3 |  | — |  | 3 |  |  | 3 |  | — |  | 3 |
Reserve for unfunded lending commitments, end of period | 91 |  | — |  | 91 |  |  | 91 |  | — |  | 91 |
Total allowance for credit losses, end of period |  | $798 |  |  | $535 |  |  | $1,333 |  |  |  | $798 |  |  | $535 |  |  | $1,333 |
| Three Months Ended September 30, 2017 |  | Nine Months Ended September 30, 2017
(in millions) | Commercial |  | Retail |  | Total |  |  | Commercial |  | Retail |  | Total |
Allowance for loan and lease losses, beginning of period |  | $614 |  |  | $605 |  |  | $1,219 |  |  |  | $663 |  |  | $573 |  |  | $1,236 |
Charge-offs | (12 | ) | (108 | ) | (120 | ) |  | (60 | ) | (321 | ) | (381 | )
Recoveries | 12 |  | 43 |  | 55 |  |  | 27 |  | 127 |  | 154 |
Net charge-offs | — |  | (65 | ) | (65 | ) |  | (33 | ) | (194 | ) | (227 | )
Provision charged to income | 24 |  | 46 |  | 70 |  |  | 8 |  | 207 |  | 215 |
Allowance for loan and lease losses, end of period | 638 |  | 586 |  | 1,224 |  |  | 638 |  | 586 |  | 1,224 |
Reserve for unfunded lending commitments, beginning of period | 93 |  | — |  | 93 |  |  | 72 |  | — |  | 72 |
Provision for unfunded lending commitments | 2 |  | — |  | 2 |  |  | 23 |  | — |  | 23 |
Reserve for unfunded lending commitments, end of period | 95 |  | — |  | 95 |  |  | 95 |  | — |  | 95 |
Total allowance for credit losses, end of period |  | $733 |  |  | $586 |  |  | $1,319 |  |  |  | $733 |  |  | $586 |  |  | $1,319 |
The recorded investment in loans and leases based on the Company’s evaluation methodology is presented below:
| September 30, 2018 |  | December 31, 2017
(in millions) | Commercial |  | Retail |  | Total |  |  | Commercial |  | Retail |  | Total |
Individually evaluated |  | $430 |  |  | $735 |  |  | $1,165 |  |  |  | $370 |  |  | $761 |  |  | $1,131 |
Formula-based evaluation | 54,975 |  | 58,580 |  | 113,555 |  |  | 51,661 |  | 57,825 |  | 109,486 |
Total loans and leases |  | $55,405 |  |  | $59,315 |  |  | $114,720 |  |  |  | $52,031 |  |  | $58,586 |  |  | $110,617 |
A summary of the ACL by evaluation method is presented below:
| September 30, 2018 |  | December 31, 2017
(in millions) | Commercial |  | Retail |  | Total |  |  | Commercial |  | Retail |  | Total |
Individually evaluated |  | $59 |  |  | $27 |  |  | $86 |  |  |  | $47 |  |  | $34 |  |  | $81 |
Formula-based evaluation | 739 |  | 508 |  | 1,247 |  |  | 726 |  | 517 |  | 1,243 |
Allowance for credit losses |  | $798 |  |  | $535 |  |  | $1,333 |  |  |  | $773 |  |  | $551 |  |  | $1,324 |
For commercial loans and leases, the Company utilizes regulatory classification ratings to monitor credit quality. Loans with a “pass” rating are those that the Company believes will be fully repaid in accordance with the contractual loan terms. Commercial loans and leases that are “criticized” are those that have some weakness or potential weakness that indicate an increased probability of future loss. “Criticized” loans are grouped into three categories, “special mention,” “substandard” and “doubtful.” Special mention loans have potential weaknesses that, if left uncorrected, may result in deterioration of the Company’s credit position at some future date. Substandard loans are inadequately protected loans; these loans have well-defined weaknesses that could hinder normal repayment or collection of the debt. Doubtful loans have the same weaknesses as substandard, with the added characteristics that the possibility of loss is high and collection of the full amount of the loan is improbable. For retail loans, the Company primarily uses the loan’s payment and delinquency status to monitor credit quality. The further a loan is past due, the greater the likelihood of future credit loss. These credit quality indicators for both commercial and retail loans are continually updated and monitored. The recorded investment in commercial loans and leases based on regulatory classification ratings is presented below:
| September 30, 2018
|  | Criticized |
(in millions) | Pass |  | Special Mention | Substandard |  | Doubtful |  | Total |
Commercial |  | $37,242 |  |  | $1,441 |  |  | $854 |  |  | $233 |  |  | $39,770 |
Commercial real estate | 12,193 |  | 282 |  | 127 |  | 28 |  | 12,630 |
Leases | 2,909 |  | 49 |  | 47 |  | — |  | 3,005 |
Total commercial loans and leases |  | $52,344 |  |  | $1,772 |  |  | $1,028 |  |  | $261 |  |  | $55,405 |
| December 31, 2017
|  | Criticized |
(in millions) | Pass |  | Special Mention | Substandard |  | Doubtful |  | Total |
Commercial |  | $35,430 |  |  | $1,143 |  |  | $785 |  |  | $204 |  |  | $37,562 |
Commercial real estate | 10,706 |  | 500 |  | 74 |  | 28 |  | 11,308 |
Leases | 3,069 |  | 73 |  | 19 |  | — |  | 3,161 |
Total commercial loans and leases |  | $49,205 |  |  | $1,716 |  |  | $878 |  |  | $232 |  |  | $52,031 |
The recorded investment in classes of retail loans, categorized by delinquency status is presented below:
| September 30, 2018
|  | Days Past Due
(in millions) | Current |  | 1-29 | 30-59 | 60-89 | 90 or More | Total |
Residential mortgages |  | $18,173 |  |  | $136 |  |  | $37 |  |  | $13 |  |  | $134 |  |  | $18,493 |
Home equity loans | 999 |  | 79 |  | 11 |  | 3 |  | 39 |  | 1,131 |
Home equity lines of credit | 12,214 |  | 383 |  | 55 |  | 25 |  | 186 |  | 12,863 |
Home equity loans serviced by others | 382 |  | 24 |  | 6 |  | 2 |  | 15 |  | 429 |
Home equity lines of credit serviced by others | 87 |  | 17 |  | 2 |  | 1 |  | 7 |  | 114 |
Automobile | 10,849 |  | 1,109 |  | 189 |  | 51 |  | 57 |  | 12,255 |
Education | 8,514 |  | 151 |  | 24 |  | 13 |  | 10 |  | 8,712 |
Credit cards | 1,814 |  | 57 |  | 14 |  | 9 |  | 17 |  | 1,911 |
Other retail | 3,291 |  | 69 |  | 20 |  | 15 |  | 12 |  | 3,407 |
Total retail loans |  | $56,323 |  |  | $2,025 |  |  | $358 |  |  | $132 |  |  | $477 |  |  | $59,315 |
| December 31, 2017
|  | Days Past Due
(in millions) | Current |  | 1-29 | 30-59 | 60-89 | 90 or More | Total |
Residential mortgages |  | $16,714 |  |  | $147 |  |  | $46 |  |  | $18 |  |  | $120 |  |  | $17,045 |
Home equity loans | 1,212 |  | 102 |  | 20 |  | 4 |  | 54 |  | 1,392 |
Home equity lines of credit | 12,756 |  | 438 |  | 78 |  | 23 |  | 188 |  | 13,483 |
Home equity loans serviced by others | 477 |  | 29 |  | 10 |  | 4 |  | 22 |  | 542 |
Home equity lines of credit serviced by others | 116 |  | 21 |  | 4 |  | 1 |  | 7 |  | 149 |
Automobile | 11,596 |  | 1,273 |  | 220 |  | 55 |  | 60 |  | 13,204 |
Education | 7,898 |  | 160 |  | 23 |  | 12 |  | 41 |  | 8,134 |
Credit cards | 1,747 |  | 63 |  | 12 |  | 9 |  | 17 |  | 1,848 |
Other retail | 2,679 |  | 68 |  | 20 |  | 12 |  | 10 |  | 2,789 |
Total retail loans |  | $55,195 |  |  | $2,301 |  |  | $433 |  |  | $138 |  |  | $519 |  |  | $58,586 |
Nonperforming Assets The following table presents nonperforming loans and leases and loans accruing and 90 days or more past due:
| Nonperforming |  | Accruing and 90 days or more past due
(in millions) | September 30, 2018 |  | December 31, 2017 |  | September 30, 2018 |  | December 31, 2017
Commercial |  | $228 |  |  |  | $238 |  |  |  | $— |  |  |  | $5 |
Commercial real estate | 30 |  |  | 27 |  |  | — |  |  | 3 |
Leases | — |  |  | — |  |  | — |  |  | — |
Total commercial loans and leases | 258 |  |  | 265 |  |  | — |  |  | 8 |
Residential mortgages (1) | 136 |  |  | 128 |  |  | 16 |  |  | 16 |
Home equity loans | 53 |  |  | 72 |  |  | — |  |  | — |
Home equity lines of credit | 221 |  |  | 233 |  |  | — |  |  | — |
Home equity loans serviced by others | 19 |  |  | 25 |  |  | — |  |  | — |
Home equity lines of credit serviced by others | 16 |  |  | 18 |  |  | — |  |  | — |
Automobile | 67 |  |  | 70 |  |  | — |  |  | — |
Education | 38 |  |  | 38 |  |  | 3 |  |  | 3 |
Credit card | 17 |  |  | 17 |  |  | — |  |  | — |
Other retail | 7 |  |  | 5 |  |  | 6 |  |  | 5 |
Total retail loans | 574 |  |  | 606 |  |  | 25 |  |  | 24 |
Total |  | $832 |  |  |  | $871 |  |  |  | $25 |  |  |  | $32 |
(1) Nonperforming balances exclude first lien residential mortgage loans that are 100% guaranteed by the Federal Housing Administration. These loans, which are accruing and 90 days or more past due, totaled $13 million and $15 million as of September 30, 2018 and December 31, 2017, respectively. Nonperforming balances also exclude guaranteed residential mortgage loans sold to GNMA for which the Company has the right, but not the obligation, to repurchase. These loans totaled $116 million and $30 million as of September 30, 2018 and December 31, 2017, respectively. These loans are included in the Company’s Consolidated Balance Sheets. Other nonperforming assets consisted primarily of other real estate owned and was presented in other assets on the Consolidated Balance Sheets. Other real estate owned, net of valuation allowance, was $31 million and $36 million as of September 30, 2018 and December 31, 2017, respectively. A summary of nonperforming loan and lease key performance indicators is presented below:
| September 30, 2018 |  | December 31, 2017
Nonperforming commercial loans and leases as a percentage of total loans and leases | 0.23 | % |  | 0.24 | %
Nonperforming retail loans as a percentage of total loans and leases | 0.50 |  |  | 0.55 |
Total nonperforming loans and leases as a percentage of total loans and leases | 0.73 | % |  | 0.79 | %
Nonperforming commercial assets as a percentage of total assets | 0.16 | % |  | 0.17 | %
Nonperforming retail assets as a percentage of total assets | 0.38 | % |  | 0.43 | %
Total nonperforming assets as a percentage of total assets | 0.54 | % |  | 0.60 | %
The recorded investment in mortgage loans collateralized by residential real estate property for which formal foreclosure proceedings are in process was $174 million and $181 million as of September 30, 2018 and December 31, 2017, respectively. An analysis of the age of both accruing and nonaccruing loan and lease past due amounts is presented below:
| September 30, 2018 |  | December 31, 2017
| Days Past Due |  | Days Past Due
(in millions) | 30-59 | 60-89 | 90 or More | Total |  |  | 30-59 | 60-89 | 90 or More | Total |
Commercial |  | $46 |  |  | $3 |  |  | $94 |  |  | $143 |  |  |  | $26 |  |  | $4 |  |  | $243 |  |  | $273 |
Commercial real estate | 46 |  | 7 |  | 27 |  | 80 |  |  | 38 |  | 20 |  | 30 |  | 88 |
Leases | — |  | — |  | — |  | — |  |  | 4 |  | 1 |  | — |  | 5 |
Total commercial loans and leases | 92 |  | 10 |  | 121 |  | 223 |  |  | 68 |  | 25 |  | 273 |  | 366 |
Residential mortgages | 37 |  | 13 |  | 134 |  | 184 |  |  | 46 |  | 18 |  | 120 |  | 184 |
Home equity loans | 11 |  | 3 |  | 39 |  | 53 |  |  | 20 |  | 4 |  | 54 |  | 78 |
Home equity lines of credit | 55 |  | 25 |  | 186 |  | 266 |  |  | 78 |  | 23 |  | 188 |  | 289 |
Home equity loans serviced by others | 6 |  | 2 |  | 15 |  | 23 |  |  | 10 |  | 4 |  | 22 |  | 36 |
Home equity lines of credit serviced by others | 2 |  | 1 |  | 7 |  | 10 |  |  | 4 |  | 1 |  | 7 |  | 12 |
Automobile | 189 |  | 51 |  | 57 |  | 297 |  |  | 220 |  | 55 |  | 60 |  | 335 |
Education | 24 |  | 13 |  | 10 |  | 47 |  |  | 23 |  | 12 |  | 41 |  | 76 |
Credit cards | 14 |  | 9 |  | 17 |  | 40 |  |  | 12 |  | 9 |  | 17 |  | 38 |
Other retail | 20 |  | 15 |  | 12 |  | 47 |  |  | 20 |  | 12 |  | 10 |  | 42 |
Total retail loans | 358 |  | 132 |  | 477 |  | 967 |  |  | 433 |  | 138 |  | 519 |  | 1,090 |
Total |  | $450 |  |  | $142 |  |  | $598 |  |  | $1,190 |  |  |  | $501 |  |  | $163 |  |  | $792 |  |  | $1,456 |
Impaired Loans Impaired loans include nonaccruing larger balance (greater than $3 million carrying value), non-homogeneous commercial and commercial real estate loans, and restructured loans that are deemed TDRs. A summary of impaired loans by class is presented below:
| September 30, 2018
(in millions) | Impaired Loans With a Related Allowance | Allowance on Impaired Loans | Impaired Loans Without a Related Allowance | Unpaid Contractual Balance | Total Recorded Investment in Impaired Loans
Commercial |  | $237 |  |  | $52 |  |  | $133 |  |  | $439 |  |  | $370 |
Commercial real estate | 31 |  | 7 |  | 29 |  | 78 |  | 60 |
Leases | — |  | — |  | — |  | — |  | — |
Total commercial loans and leases | 268 |  | 59 |  | 162 |  | 517 |  | 430 |
Residential mortgages | 28 |  | 2 |  | 128 |  | 201 |  | 156 |
Home equity loans | 34 |  | 3 |  | 72 |  | 145 |  | 106 |
Home equity lines of credit | 18 |  | 1 |  | 190 |  | 253 |  | 208 |
Home equity loans serviced by others | 23 |  | 2 |  | 20 |  | 57 |  | 43 |
Home equity lines of credit serviced by others | 2 |  | — |  | 7 |  | 12 |  | 9 |
Automobile | 2 |  | — |  | 23 |  | 31 |  | 25 |
Education | 134 |  | 11 |  | 23 |  | 158 |  | 157 |
Credit cards | 24 |  | 7 |  | — |  | 25 |  | 24 |
Other retail | 4 |  | 1 |  | 3 |  | 8 |  | 7 |
Total retail loans | 269 |  | 27 |  | 466 |  | 890 |  | 735 |
Total |  | $537 |  |  | $86 |  |  | $628 |  |  | $1,407 |  |  | $1,165 |
| December 31, 2017
(in millions) | Impaired Loans With a Related Allowance | Allowance on Impaired Loans | Impaired Loans Without a Related Allowance | Unpaid Contractual Balance | Total Recorded Investment in Impaired Loans
Commercial |  | $183 |  |  | $42 |  |  | $159 |  |  | $403 |  |  | $342 |
Commercial real estate | 25 |  | 5 |  | 3 |  | 40 |  | 28 |
Leases | — |  | — |  | — |  | — |  | — |
Total commercial loans and leases | 208 |  | 47 |  | 162 |  | 443 |  | 370 |
Residential mortgages | 25 |  | 2 |  | 126 |  | 197 |  | 151 |
Home equity loans | 41 |  | 4 |  | 80 |  | 162 |  | 121 |
Home equity lines of credit | 16 |  | 1 |  | 181 |  | 241 |  | 197 |
Home equity loans serviced by others | 29 |  | 2 |  | 22 |  | 67 |  | 51 |
Home equity lines of credit serviced by others | 2 |  | — |  | 7 |  | 14 |  | 9 |
Automobile | 2 |  | — |  | 21 |  | 30 |  | 23 |
Education | 154 |  | 17 |  | 21 |  | 175 |  | 175 |
Credit cards | 24 |  | 7 |  | 1 |  | 25 |  | 25 |
Other retail | 5 |  | 1 |  | 4 |  | 10 |  | 9 |
Total retail loans | 298 |  | 34 |  | 463 |  | 921 |  | 761 |
Total |  | $506 |  |  | $81 |  |  | $625 |  |  | $1,364 |  |  | $1,131 |
Additional information on impaired loans is presented below:
| Three Months Ended September 30,
| 2018 |  | 2017
(in millions) | Interest Income Recognized | Average Recorded Investment |  | Interest Income Recognized | Average Recorded Investment
Commercial |  | $3 |  |  | $334 |  |  |  | $1 |  |  | $391 |
Commercial real estate | — |  | 34 |  |  | — |  | 33 |
Leases | — |  | — |  |  | — |  | — |
Total commercial loans and leases | 3 |  | 368 |  |  | 1 |  | 424 |
Residential mortgages | 1 |  | 154 |  |  | — |  | 137 |
Home equity loans | 1 |  | 107 |  |  | 1 |  | 125 |
Home equity lines of credit | 2 |  | 202 |  |  | 2 |  | 192 |
Home equity loans serviced by others | 1 |  | 43 |  |  | — |  | 51 |
Home equity lines of credit serviced by others | — |  | 9 |  |  | — |  | 9 |
Automobile | — |  | 23 |  |  | — |  | 21 |
Education | 3 |  | 160 |  |  | 3 |  | 178 |
Credit cards | — |  | 24 |  |  | — |  | 25 |
Other retail | — |  | 7 |  |  | — |  | 10 |
Total retail loans | 8 |  | 729 |  |  | 6 |  | 748 |
Total |  | $11 |  |  | $1,097 |  |  |  | $7 |  |  | $1,172 |
| Nine Months Ended September 30,
| 2018 |  | 2017
(in millions) | Interest Income Recognized | Average Recorded Investment |  | Interest Income Recognized | Average Recorded Investment
Commercial |  | $7 |  |  | $318 |  |  |  | $3 |  |  | $402 |
Commercial real estate | — |  | 33 |  |  | — |  | 39 |
Leases | — |  | — |  |  | — |  | — |
Total commercial loans and leases | 7 |  | 351 |  |  | 3 |  | 441 |
Residential mortgages | 4 |  | 148 |  |  | 3 |  | 128 |
Home equity loans | 4 |  | 107 |  |  | 4 |  | 124 |
Home equity lines of credit | 6 |  | 189 |  |  | 5 |  | 178 |
Home equity loans serviced by others | 2 |  | 44 |  |  | 2 |  | 51 |
Home equity lines of credit serviced by others | — |  | 9 |  |  | — |  | 9 |
Automobile | — |  | 21 |  |  | — |  | 18 |
Education | 7 |  | 159 |  |  | 7 |  | 178 |
Credit cards | 1 |  | 22 |  |  | 1 |  | 23 |
Other retail | — |  | 7 |  |  | — |  | 10 |
Total retail loans | 24 |  | 706 |  |  | 22 |  | 719 |
Total |  | $31 |  |  | $1,057 |  |  |  | $25 |  |  | $1,160 |
Troubled Debt Restructurings In situations where, for economic or legal reasons related to the borrower’s financial difficulties, the Company grants a concession to the borrower that it would not otherwise consider, the related loan is classified as a TDR. TDRs typically result from the Company’s loss mitigation efforts and are undertaken in order to improve the likelihood of recovery and continuity of the relationship. The Company’s loan modifications are handled on a case-by-case basis and are negotiated to achieve mutually agreeable terms that maximize loan collectability and meet the borrower’s financial needs. Concessions granted in TDRs for all classes of loans may include lowering the interest rate, forgiving a portion of principal, extending the loan term, lowering scheduled payments for a specified period of time, waiving or delaying a scheduled payment of principal or interest for other than an insignificant time period, or capitalizing past due amounts. A rate increase can be a concession if the increased rate is lower than a market rate for debt with risk similar to that of the restructured loan. TDRs for commercial loans and leases may also involve creating a multiple note structure, accepting non-cash assets, accepting an equity interest, or receiving a performance-based fee. In some cases, a TDR may involve multiple concessions. The financial effects of TDRs for all loan classes may include lower income (either due to a lower interest rate or a delay in the timing of cash flows), larger loan loss provisions, and accelerated charge-offs if the modification renders the loan collateral-dependent. In some cases, interest income throughout the term of the loan may increase if, for example, the loan is extended or the interest rate is increased as a result of the restructuring. Because TDRs are impaired loans, the Company measures impairment by comparing the present value of expected future cash flows, or when appropriate, the fair value of collateral less costs to sell, to the loan’s recorded investment. Any excess of recorded investment over the present value of expected future cash flows or collateral value is included in the ALLL. Any portion of the loan’s recorded investment the Company does not expect to collect as a result of the modification is charged off at the time of modification. For Retail TDR accounts where the expected value of cash flows is utilized, any recorded investment in excess of the present value of expected cash flows is recognized by creating or increasing the ALLL. For Retail TDR accounts assessed based on the fair value of collateral, any portion of the loan’s recorded investment in excess of the collateral value less costs to sell is charged off at the time of modification or at the time of subsequent and regularly recurring valuations. The table below summarizes TDRs by class and total unfunded commitments:
(in millions) | September 30, 2018 |  | December 31, 2017
Commercial |  | $253 |  |  |  | $129 |
Retail | 735 |  |  | 761 |
Unfunded commitments tied to TDRs | 28 |  |  | 39 |
The table below summarizes how loans were modified during the three months ended September 30, 2018, the charge-offs related to the modifications, and the impact on the ALLL. The reported balances can include loans that became TDRs during the three months ended September 30, 2018 and were paid off in full, charged off, or sold prior to September 30, 2018.
| Primary Modification Types
| Interest Rate Reduction (1) |  | Maturity Extension (2)
(dollars in millions) | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment |  | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment
Commercial | 1 |  |  | $— |  |  | $— |  |  | 13 |  |  | $1 |  |  | $1 |
Commercial real estate | — |  | — |  | — |  |  | — |  | — |  | — |
Total commercial loans | 1 |  | — |  | — |  |  | 13 |  | 1 |  | 1 |
Residential mortgages | 9 |  | 1 |  | 1 |  |  | 17 |  | 2 |  | 2 |
Home equity loans | 10 |  | — |  | 1 |  |  | — |  | — |  | — |
Home equity lines of credit | 27 |  | 3 |  | 3 |  |  | 58 |  | 10 |  | 10 |
Home equity loans serviced by others | 2 |  | — |  | — |  |  | — |  | — |  | — |
Home equity lines of credit serviced by others | 1 |  | — |  | — |  |  | — |  | — |  | — |
Automobile | 45 |  | 1 |  | — |  |  | 9 |  | — |  | — |
Education | — |  | — |  | — |  |  | — |  | — |  | — |
Credit cards | 623 |  | 4 |  | 4 |  |  | — |  | — |  | — |
Other retail | — |  | — |  | — |  |  | — |  | — |  | — |
Total retail loans | 717 |  | 9 |  | 9 |  |  | 84 |  | 12 |  | 12 |
Total | 718 |  |  | $9 |  |  | $9 |  |  | 97 |  |  | $13 |  |  | $13 |
| Primary Modification Types |  |  |
| Other (3) |  |  |
(dollars in millions) | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment |  | Net Change to ALLL Resulting from Modification | Charge-offs Resulting from Modification
Commercial | 1 |  |  | $— |  |  | $— |  |  |  | $— |  |  | $— |
Commercial real estate | — |  | — |  | — |  |  | — |  | — |
Total commercial loans | 1 |  | — |  | — |  |  | — |  | — |
Residential mortgages | 31 |  | 4 |  | 3 |  |  | (1 | ) | — |
Home equity loans | 40 |  | 2 |  | 2 |  |  | — |  | — |
Home equity lines of credit | 104 |  | 7 |  | 7 |  |  | — |  | — |
Home equity loans serviced by others | 5 |  | 1 |  | 1 |  |  | — |  | — |
Home equity lines of credit serviced by others | 8 |  | — |  | — |  |  | — |  | — |
Automobile | 315 |  | 5 |  | 4 |  |  | — |  | 2 |
Education | 45 |  | 1 |  | 1 |  |  | 1 |  | — |
Credit cards | — |  | — |  | — |  |  | 1 |  | — |
Other retail | — |  | — |  | — |  |  | — |  | — |
Total retail loans | 548 |  | 20 |  | 18 |  |  | 1 |  | 2 |
Total | 549 |  |  | $20 |  |  | $18 |  |  |  | $1 |  |  | $2 |
(1) Includes modifications that consist of multiple concessions, one of which is an interest rate reduction. (2) Includes modifications that consist of multiple concessions, one of which is a maturity extension (unless one of the other concessions was an interest rate reduction). (3) Includes modifications other than interest rate reductions or maturity extensions, such as lowering scheduled payments for a specified period of time, principal forgiveness, and capitalizing arrearages. Also included are the following: deferrals, trial modifications, certain bankruptcies, loans in forbearance and prepayment plans. Modifications can include the deferral of accrued interest resulting in post modification balances being higher than pre-modification. The table below summarizes how loans were modified during the three months ended September 30, 2017, the charge-offs related to the modifications, and the impact on the ALLL. The reported balances can include loans that became TDRs during the three months ended September 30, 2017 and were paid off in full, charged off, or sold prior to September 30, 2017.
| Primary Modification Types
| Interest Rate Reduction (1) |  | Maturity Extension (2)
(dollars in millions) | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment |  | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment
Commercial | 3 |  |  | $1 |  |  | $1 |  |  | 17 |  |  | $8 |  |  | $7 |
Commercial real estate | — |  | — |  | — |  |  | 1 |  | — |  | — |
Total commercial loans | 3 |  | 1 |  | 1 |  |  | 18 |  | 8 |  | 7 |
Residential mortgages | 13 |  | 1 |  | 2 |  |  | 15 |  | 1 |  | 2 |
Home equity loans | 25 |  | 2 |  | 1 |  |  | — |  | — |  | — |
Home equity lines of credit | 11 |  | 1 |  | 1 |  |  | 86 |  | 11 |  | 11 |
Home equity loans serviced by others | 3 |  | — |  | — |  |  | — |  | — |  | — |
Home equity lines of credit serviced by others | — |  | — |  | — |  |  | — |  | — |  | — |
Automobile | 28 |  | 1 |  | 1 |  |  | 8 |  | — |  | — |
Education | — |  | — |  | — |  |  | — |  | — |  | — |
Credit cards | 661 |  | 3 |  | 3 |  |  | — |  | — |  | — |
Other retail | — |  | — |  | — |  |  | — |  | — |  | — |
Total retail loans | 741 |  | 8 |  | 8 |  |  | 109 |  | 12 |  | 13 |
Total | 744 |  |  | $9 |  |  | $9 |  |  | 127 |  |  | $20 |  |  | $20 |
| Primary Modification Types |  |  |
| Other (3) |  |  |
(dollars in millions) | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment |  | Net Change to ALLL Resulting from Modification | Charge-offs Resulting from Modification
Commercial | 7 |  |  | $28 |  |  | $30 |  |  |  | $— |  |  | $— |
Commercial real estate | 1 |  | — |  | — |  |  | — |  | — |
Total commercial loans | 8 |  | 28 |  | 30 |  |  | — |  | — |
Residential mortgages | 38 |  | 3 |  | 3 |  |  | (1 | ) | — |
Home equity loans | 49 |  | 3 |  | 3 |  |  | — |  | — |
Home equity lines of credit | 110 |  | 6 |  | 7 |  |  | — |  | 1 |
Home equity loans serviced by others | 11 |  | 1 |  | — |  |  | — |  | — |
Home equity lines of credit serviced by others | 8 |  | 1 |  | — |  |  | — |  | — |
Automobile | 392 |  | 7 |  | 6 |  |  | — |  | 1 |
Education | 67 |  | 2 |  | 2 |  |  | — |  | — |
Credit cards | — |  | — |  | — |  |  | 1 |  | — |
Other retail | 2 |  | — |  | — |  |  | — |  | — |
Total retail loans | 677 |  | 23 |  | 21 |  |  | — |  | 2 |
Total | 685 |  |  | $51 |  |  | $51 |  |  |  | $— |  |  | $2 |
(1) Includes modifications that consist of multiple concessions, one of which is an interest rate reduction. (2) Includes modifications that consist of multiple concessions, one of which is a maturity extension (unless one of the other concessions was an interest rate reduction). (3) Includes modifications other than interest rate reductions or maturity extensions, such as lowering scheduled payments for a specified period of time, principal forgiveness, and capitalizing arrearages. Also included are the following: deferrals, trial modifications, certain bankruptcies, loans in forbearance and prepayment plans. Modifications can include the deferral of accrued interest resulting in post modification balances being higher than pre-modification. The table below summarizes how loans were modified during the nine months ended September 30, 2018, the charge-offs related to the modifications, and the impact on the ALLL. The reported balances can include loans that became TDRs during the nine months ended September 30, 2018 and were paid off in full, charged off, or sold prior to September 30, 2018.
| Primary Modification Types
| Interest Rate Reduction (1) |  | Maturity Extension (2)
(dollars in millions) | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment |  | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment
Commercial | 6 |  |  | $1 |  |  | $1 |  |  | 23 |  |  | $2 |  |  | $2 |
Commercial real estate | — |  | — |  | — |  |  | 1 |  | — |  | — |
Total commercial loans | 6 |  | 1 |  | 1 |  |  | 24 |  | 2 |  | 2 |
Residential mortgages | 32 |  | 3 |  | 4 |  |  | 47 |  | 6 |  | 6 |
Home equity loans | 32 |  | 2 |  | 3 |  |  | 1 |  | — |  | — |
Home equity lines of credit | 55 |  | 5 |  | 5 |  |  | 147 |  | 21 |  | 21 |
Home equity loans serviced by others | 3 |  | — |  | — |  |  | — |  | — |  | — |
Home equity lines of credit serviced by others | 5 |  | — |  | — |  |  | 1 |  | — |  | — |
Automobile | 122 |  | 3 |  | 2 |  |  | 42 |  | 1 |  | 1 |
Education | — |  | — |  | — |  |  | — |  | — |  | — |
Credit cards | 1,776 |  | 10 |  | 10 |  |  | — |  | — |  | — |
Other retail | 1 |  | — |  | — |  |  | — |  | — |  | — |
Total retail loans | 2,026 |  | 23 |  | 24 |  |  | 238 |  | 28 |  | 28 |
Total | 2,032 |  |  | $24 |  |  | $25 |  |  | 262 |  |  | $30 |  |  | $30 |
| Primary Modification Types |  |  |
| Other (3) |  |  |
(dollars in millions) | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment |  | Net Change to ALLL Resulting from Modification | Charge-offs Resulting from Modification
Commercial | 40 |  |  | $155 |  |  | $156 |  |  |  | $— |  |  | $— |
Commercial real estate | 2 |  | 31 |  | 31 |  |  | — |  | — |
Total commercial loans | 42 |  | 186 |  | 187 |  |  | — |  | — |
Residential mortgages | 117 |  | 14 |  | 14 |  |  | (1 | ) | — |
Home equity loans | 106 |  | 5 |  | 5 |  |  | — |  | — |
Home equity lines of credit | 310 |  | 22 |  | 21 |  |  | — |  | — |
Home equity loans serviced by others | 20 |  | 1 |  | 1 |  |  | — |  | — |
Home equity lines of credit serviced by others | 13 |  | — |  | — |  |  | — |  | — |
Automobile | 893 |  | 15 |  | 13 |  |  | — |  | 3 |
Education | 296 |  | 5 |  | 5 |  |  | 1 |  | — |
Credit cards | — |  | — |  | — |  |  | 3 |  | — |
Other retail | 4 |  | — |  | — |  |  | — |  | — |
Total retail loans | 1,759 |  | 62 |  | 59 |  |  | 3 |  | 3 |
Total | 1,801 |  |  | $248 |  |  | $246 |  |  |  | $3 |  |  | $3 |
(1) Includes modifications that consist of multiple concessions, one of which is an interest rate reduction. (2) Includes modifications that consist of multiple concessions, one of which is a maturity extension (unless one of the other concessions was an interest rate reduction). (3) Includes modifications other than interest rate reductions or maturity extensions, such as lowering scheduled payments for a specified period of time, principal forgiveness, and capitalizing arrearages. Also included are the following: deferrals, trial modifications, certain bankruptcies, loans in forbearance and prepayment plans. Modifications can include the deferral of accrued interest resulting in post modification balances being higher than pre-modification. The table below summarizes how loans were modified during the nine months ended September 30, 2017, the charge-offs related to the modifications, and the impact on the ALLL. The reported balances can include loans that became TDRs during the nine months ended September 30, 2017 and were paid off in full, charged off, or sold prior to September 30, 2017.
| Primary Modification Types
| Interest Rate Reduction (1) |  | Maturity Extension (2)
(dollars in millions) | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment |  | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment
Commercial | 7 |  |  | $2 |  |  | $2 |  |  | 35 |  |  | $22 |  |  | $21 |
Commercial real estate | — |  | — |  | — |  |  | 1 |  | — |  | — |
Total commercial loans | 7 |  | 2 |  | 2 |  |  | 36 |  | 22 |  | 21 |
Residential mortgages | 56 |  | 6 |  | 7 |  |  | 50 |  | 9 |  | 10 |
Home equity loans | 68 |  | 4 |  | 4 |  |  | 1 |  | — |  | — |
Home equity lines of credit | 41 |  | 2 |  | 2 |  |  | 204 |  | 26 |  | 26 |
Home equity loans serviced by others | 14 |  | 1 |  | 1 |  |  | — |  | — |  | — |
Home equity lines of credit serviced by others | 3 |  | — |  | — |  |  | 2 |  | — |  | — |
Automobile | 93 |  | 2 |  | 2 |  |  | 23 |  | — |  | — |
Education | — |  | — |  | — |  |  | — |  | — |  | — |
Credit cards | 1,850 |  | 10 |  | 10 |  |  | — |  | — |  | — |
Other retail | 1 |  | — |  | — |  |  | — |  | — |  | — |
Total retail loans | 2,126 |  | 25 |  | 26 |  |  | 280 |  | 35 |  | 36 |
Total | 2,133 |  |  | $27 |  |  | $28 |  |  | 316 |  |  | $57 |  |  | $57 |
| Primary Modification Types |  |  |
| Other (3) |  |  |
(dollars in millions) | Number of Contracts | Pre-Modification Outstanding Recorded Investment | Post-Modification Outstanding Recorded Investment |  | Net Change to ALLL Resulting from Modification | Charge-offs Resulting from Modification
Commercial | 12 |  |  | $64 |  |  | $65 |  |  |  | $1 |  |  | $— |
Commercial real estate | 1 |  | — |  | — |  |  | — |  | — |
Total commercial loans | 13 |  | 64 |  | 65 |  |  | 1 |  | — |
Residential mortgages | 122 |  | 13 |  | 13 |  |  | (1 | ) | — |
Home equity loans | 192 |  | 11 |  | 11 |  |  | — |  | — |
Home equity lines of credit | 295 |  | 20 |  | 20 |  |  | — |  | 1 |
Home equity loans serviced by others | 41 |  | 2 |  | 1 |  |  | — |  | — |
Home equity lines of credit serviced by others | 21 |  | 2 |  | 1 |  |  | — |  | — |
Automobile | 1,017 |  | 18 |  | 16 |  |  | — |  | 3 |
Education | 235 |  | 4 |  | 4 |  |  | 1 |  | — |
Credit cards | — |  | — |  | — |  |  | 3 |  | — |
Other retail | 5 |  | — |  | — |  |  | (1 | ) | — |
Total retail loans | 1,928 |  | 70 |  | 66 |  |  | 2 |  | 4 |
Total | 1,941 |  |  | $134 |  |  | $131 |  |  |  | $3 |  |  | $4 |
(1) Includes modifications that consist of multiple concessions, one of which is an interest rate reduction. (2) Includes modifications that consist of multiple concessions, one of which is a maturity extension (unless one of the other concessions was an interest rate reduction). (3) Includes modifications other than interest rate reductions or maturity extensions, such as lowering scheduled payments for a specified period of time, principal forgiveness, and capitalizing arrearages. Also included are the following: deferrals, trial modifications, certain bankruptcies, loans in forbearance and prepayment plans. Modifications can include the deferral of accrued interest resulting in post modification balances being higher than pre-modification. The table below summarizes TDRs that defaulted within 12 months of their modification date during the nine months ended September 30, 2018 and 2017, respectively. For purposes of this table, a payment default refers to a loan that becomes 90 days or more past due under the modified terms. Amounts represent the loan’s recorded investment at the time of payment default. If a TDR of any loan type becomes 90 days past due after being modified, the loan is written down to the fair value of collateral less cost to sell. The amount written off is charged to the ALLL.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
(dollars in millions) | Number of Contracts | Balance Defaulted |  | Number of Contracts | Balance Defaulted |  | Number of Contracts | Balance Defaulted |  | Number of Contracts | Balance Defaulted
Commercial | 9 |  |  | $32 |  |  | 2 |  |  | $4 |  |  | 15 |  |  | $52 |  |  | 7 |  |  | $5 |
Commercial real estate | — |  | — |  |  | — |  | — |  |  | 1 |  | — |  |  | 1 |  | 4 |
Total commercial loans | 9 |  | 32 |  |  | 2 |  | 4 |  |  | 16 |  | 52 |  |  | 8 |  | 9 |
Residential mortgages | 33 |  | 4 |  |  | 35 |  | 5 |  |  | 103 |  | 12 |  |  | 121 |  | 15 |
Home equity loans | 6 |  | — |  |  | 12 |  | — |  |  | 24 |  | 1 |  |  | 35 |  | 1 |
Home equity lines of credit | 59 |  | 5 |  |  | 55 |  | 4 |  |  | 165 |  | 13 |  |  | 152 |  | 11 |
Home equity loans serviced by others | 3 |  | — |  |  | 6 |  | — |  |  | 13 |  | — |  |  | 16 |  | — |
Home equity lines of credit serviced by others | 2 |  | — |  |  | 4 |  | — |  |  | 3 |  | — |  |  | 8 |  | — |
Automobile | 40 |  | — |  |  | 42 |  | — |  |  | 116 |  | 1 |  |  | 103 |  | 1 |
Education | 1 |  | — |  |  | 5 |  | 1 |  |  | 13 |  | 1 |  |  | 41 |  | 1 |
Credit cards | 106 |  | 1 |  |  | 116 |  | — |  |  | 327 |  | 2 |  |  | 344 |  | 2 |
Other retail | 1 |  | — |  |  | 2 |  | — |  |  | 1 |  | — |  |  | 4 |  | — |
Total retail loans | 251 |  | 10 |  |  | 277 |  | 10 |  |  | 765 |  | 30 |  |  | 824 |  | 31 |
Total | 260 |  |  | $42 |  |  | 279 |  |  | $14 |  |  | 781 |  |  | $82 |  |  | 832 |  |  | $40 |
Concentrations of Credit Risk Most of the Company’s lending activity is with customers located in the New England, Mid-Atlantic and Midwest regions. Generally, loans are collateralized by assets including real estate, inventory, accounts receivable, other personal property and investment securities. As of September 30, 2018 and December 31, 2017, the Company had a significant amount of loans collateralized by residential and commercial real estate. There were no significant concentration risks within the commercial loan or retail loan portfolios. Exposure to credit losses arising from lending transactions may fluctuate with fair values of collateral supporting loans, which may not perform according to contractual agreements. The Company’s policy is to collateralize loans to the extent necessary; however, unsecured loans are also granted on the basis of the financial strength of the applicant and the facts surrounding the transaction. Certain loan products, including residential mortgages, home equity loans and lines of credit, and credit cards, have contractual features that may increase credit exposure to the Company in the event of an increase in interest rates or a decline in housing values. These products include loans that exceed 90% of the value of the underlying collateral (high LTV loans), interest-only and negative amortization residential mortgages, and loans with low introductory rates. Certain loans have more than one of these characteristics. The following tables present balances of loans with these characteristics:
| September 30, 2018
(in millions) | Residential Mortgages | Home Equity Loans and Lines of Credit | Home Equity Products Serviced by Others | Credit Cards |  | Total |
High loan-to-value |  | $339 |  |  | $107 |  |  | $174 |  |  | $— |  |  | $620 |
Interest-only/negative amortization | 1,786 |  | — |  | — |  | — |  | 1,786 |
Low introductory rate | — |  | — |  | — |  | 211 |  | 211 |
Multiple characteristics and other | 1 |  | — |  | — |  | — |  | 1 |
Total |  | $2,126 |  |  | $107 |  |  | $174 |  |  | $211 |  |  | $2,618 |
| December 31, 2017
(in millions) | Residential Mortgages | Home Equity Loans and Lines of Credit | Home Equity Products Serviced by Others | Credit Cards |  | Education |  | Total |
High loan-to-value |  | $366 |  |  | $166 |  |  | $264 |  |  | $— |  |  | $— |  |  | $796 |
Interest-only/negative amortization | 1,763 |  | — |  | — |  | — |  | 1 |  | 1,764 |
Low introductory rate | — |  | — |  | — |  | 197 |  | — |  | 197 |
Multiple characteristics and other | 1 |  | — |  | — |  | — |  | — |  | 1 |
Total |  | $2,130 |  |  | $166 |  |  | $264 |  |  | $197 |  |  | $1 |  |  | $2,758 |

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