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Loans
12 Months Ended
Dec. 31, 2023
Receivables [Abstract]  
Loans Loans
Amounts outstanding for Loans, by segment and class, are shown in the following table.
TABLE 64: LOANS
DECEMBER 31,
(In Millions)20232022
Commercial
Commercial and Institutional(1)
$11,555.3 $12,415.0 
Commercial Real Estate5,134.2 4,773.0 
Non-U.S.(1)
2,778.5 3,131.1 
Other5,944.8 1,316.5 
Total Commercial25,412.8 21,635.6 
Personal
Private Client14,360.0 14,119.0 
Residential Real Estate6,327.1 6,413.5 
Non-U.S.428.8 510.0 
Other1,088.3 215.2 
Total Personal22,204.2 21,257.7 
Total Loans$47,617.0 $42,893.3 
(1) Commercial and institutional and commercial-non-U.S. combined include $4.5 billion and $5.6 billion of private equity capital call finance loans at December 31, 2023 and 2022, respectively.
Residential real estate loans consist of traditional first lien mortgages and equity credit lines that generally require a loan-to-collateral value ratio of 65% to 80% at inception. Northern Trust’s equity credit line products generally have draw periods of up to 10 years and a balloon payment of any outstanding balance is due at maturity. Payments are interest-only with variable interest rates. Northern Trust does not offer equity credit lines that include an option to convert the outstanding balance to an amortizing payment loan. As of December 31, 2023 and 2022, equity credit lines totaled $228.7 million and $248.6 million, respectively. Equity credit lines for which first liens were held by Northern Trust represented 96% and 98% of the total equity credit lines as of December 31, 2023 and 2022, respectively.
Included within the other commercial, non-U.S. commercial, and other personal classes are short duration advances, primarily related to the processing of custodied client investments, totaling $8.4 billion and $2.9 billion at December 31, 2023 and 2022, respectively. The $8.4 billion short duration advances at December 31, 2023 primarily reflected higher levels of year-end trading and settlement activity. Demand deposit overdrafts reclassified as loan balances, primarily in personal-other, totaled $12.1 million and $24.4 million at December 31, 2023 and 2022, respectively. There were no loans classified as held for sale on either December 31, 2023 or December 31, 2022. Loans classified as held for sale are recorded at the lower of cost or fair value. There was a $2.5 million commercial real estate loan sold during the year ended December 31, 2023. There were $11.2 million of loans sold during the year ended December 31, 2022, which were composed of residential real estate and commercial and institutional loans.
Credit Quality Indicators. Credit quality indicators are statistics, measurements or other metrics that provide information regarding the relative credit risk of loans. Northern Trust uses a variety of credit quality indicators to assess the credit risk of loans at the segment, class, and individual credit exposure levels.
As part of its credit process, Northern Trust utilizes an internal borrower risk rating system to support identification, approval, and monitoring of credit risk. Borrower risk ratings are used in credit underwriting and management reporting. Risk ratings are used for ranking the credit risk of borrowers and their probability of default. Each borrower is rated using one of a number of ratings models, which consider both quantitative and qualitative factors. The ratings models vary among classes of loans in order to capture the unique risk characteristics inherent within each particular type of credit exposure. Provided below are the more significant performance indicator attributes considered within Northern Trust’s borrower rating models, by loan class:

Commercial and Institutional: leverage, profit margin, liquidity, asset size and capital levels;
Commercial Real Estate: debt service coverage, loan-to-value ratio, leasing status and guarantor support;
Commercial-Other: leverage, profit margin, liquidity, asset size and capital levels;
Non-U.S.: leverage, profit margin, liquidity, return on assets and capital levels;
Residential Real Estate: payment history, credit bureau scores and loan-to-value ratio;
Private Client: cash-flow-to-debt and net worth ratios, leverage and liquidity; and
Personal-Other: cash-flow-to-debt and net worth ratios.

While the criteria vary by model, the objective is for the borrower ratings to be consistent in both the measurement and ranking of risk. Each model is calibrated to a master rating scale to support this consistency. Ratings for borrowers not in default range from “1” for the strongest credits to “7” for the weakest non-defaulted credits. Ratings of “8” or “9” are used for defaulted borrowers. Borrower risk ratings are monitored and are revised when events or circumstances indicate a change is required. Risk ratings are generally validated at least annually.
Loans in the “1 to 3” category are expected to exhibit minimal to modest probabilities of default and are characterized by borrowers having the strongest financial qualities, including above average financial flexibility, cash flows and capital levels. Borrowers assigned these ratings are anticipated to experience very little to moderate financial pressure in adverse down-cycle scenarios. As a result of these characteristics, borrowers within this category exhibit a minimal to modest likelihood of loss. Loans in the “4 to 5” category are expected to exhibit moderate to acceptable probabilities of default and are characterized by borrowers with less financial flexibility than those in the “1 to 3” category. Cash flows and capital levels are generally sufficient to allow for borrowers to meet current requirements, but have fewer financial resources to manage through economic downturns. As a result of these characteristics, borrowers within this category exhibit a moderate likelihood of loss. Loans in the watch list category have elevated credit risk profiles that are monitored through internal watch lists, and consist of credits with borrower ratings of “6 to 9.” These credits, which include all nonaccrual credits, are expected to exhibit probabilities of default, elevated risk of default, or are currently in default. Borrowers associated with these risk profiles that are not currently in default have limited financial flexibility. Cash flows and capital levels range from acceptable to potentially insufficient to meet current requirements, particularly in adverse down cycle scenarios. As a result of these characteristics, borrowers in this category exhibit an elevated to probable likelihood of loss.
Loan segment and class balances as of December 31, 2023 are provided in the following table, segregated by borrower ratings into “1 to 3,” “4 to 5” and “6 to 9” (watch list and nonaccrual status) categories by year of origination at amortized cost basis. Loans that are held for investment are reported at the principal amount outstanding, net of unearned income.
TABLE 65: CREDIT QUALITY INDICATOR AT AMORTIZED COST BASIS BY ORIGINATION YEAR
DECEMBER 31, 2023TERM LOANSREVOLVING LOANSREVOLVING LOANS CONVERTED TO TERM LOANS
(In Millions)20232022202120202019PRIORTOTAL
Commercial
Commercial and Institutional
Risk Rating:
1 to 3 Category$443.9 $534.1 $668.3 $78.1 $137.2 $409.9 $4,909.8 $15.0 $7,196.3 
4 to 5 Category801.4 790.9 729.5 138.7 120.5 178.7 1,332.4 72.0 4,164.1 
6 to 9 Category13.8 70.0 60.8 12.0 0.1 1.7 34.7 1.8 194.9 
Total Commercial and Institutional1,259.1 1,395.0 1,458.6 228.8 257.8 590.3 6,276.9 88.8 11,555.3 
Commercial Real Estate (CRE)
Risk Rating:
1 to 3 Category403.6 389.9 159.1 23.9 37.8 44.8 51.0  1,110.1 
4 to 5 Category1,513.5 1,208.8 521.0 218.4 252.8 96.0 136.3 7.9 3,954.7 
6 to 9 Category 16.1  30.5  8.2 14.6   69.4 
Total CRE1,933.2 1,598.7 710.6 242.3 298.8 155.4 187.3 7.9 5,134.2 
CRE Gross Charge-offs(0.7)(4.4)      (5.1)
Non-U.S.
Risk Rating:
1 to 3 Category487.9  43.2 65.2 34.2 3.3 760.0  1,393.8 
4 to 5 Category974.7 0.8    150.0 243.4  1,368.9 
6 to 9 Category1.5 14.3       15.8 
Total Non-U.S.1,464.1 15.1 43.2 65.2 34.2 153.3 1,003.4  2,778.5 
Other
Risk Rating:
1 to 3 Category4,313.2        4,313.2 
4 to 5 Category1,631.6        1,631.6 
Total Other5,944.8        5,944.8 
Other Gross Charge-offs(0.6)       (0.6)
Total Commercial10,601.2 3,008.8 2,212.4 536.3 590.8 899.0 7,467.6 96.7 25,412.8 
Commercial Gross Charge-offs(1.3)(4.4)      (5.7)
Personal
Private Client
Risk Rating:
1 to 3 Category504.7 140.8 52.3 67.5 8.7 134.7 5,320.9 168.1 6,397.7 
4 to 5 Category290.1 488.2 655.1 100.9 158.8 44.7 5,721.5 447.8 7,907.1 
6 to 9 Category 23.6 0.3    18.3 13.0  55.2 
Total Private Client818.4 629.3 707.4 168.4 167.5 197.7 11,055.4 615.9 14,360.0 
Residential Real Estate (RRE)
Risk Rating:
1 to 3 Category278.7 464.0 500.6 373.3 142.4 722.4 219.8  2,701.2 
4 to 5 Category191.6 694.9 717.4 686.7 290.0 805.3 170.3  3,556.2 
6 to 9 Category  10.9  0.7 1.6 43.6 12.9  69.7 
Total RRE470.3 1,169.8 1,218.0 1,060.7 434.0 1,571.3 403.0  6,327.1 
RRE Gross Charge-offs(0.8)    (1.0)  (1.8)
Non-U.S.
Risk Rating:
1 to 3 Category15.5  0.6   4.6 71.4  92.1 
4 to 5 Category12.7 16.0 39.2  16.4 8.9 236.1 7.4 336.7 
Total Non-U.S.28.2 16.0 39.8  16.4 13.5 307.5 7.4 428.8 
Other
Risk Rating:
1 to 3 Category461.7        461.7 
4 to 5 Category626.6        626.6 
Total Other1,088.3        1,088.3 
Total Personal2,405.2 1,815.1 1,965.2 1,229.1 617.9 1,782.5 11,765.9 623.3 22,204.2 
Personal Gross Charge-offs(0.8)    (1.0)  (1.8)
Total Loans$13,006.4 $4,823.9 $4,177.6 $1,765.4 $1,208.7 $2,681.5 $19,233.5 $720.0 $47,617.0 
Total Loans Gross Charge-offs$(2.1)$(4.4)$ $ $ $(1.0)$ $ $(7.5)
December 31, 2022TERM LOANSREVOLVING LOANSREVOLVING LOANS CONVERTED TO TERM LOANS
(In Millions)20222021202020192018PRIORTOTAL
Commercial
Commercial and Institutional
Risk Rating:
1 to 3 Category$753.3 $1,087.5 $209.8 $159.3 $45.9 $511.3 $6,032.8 $17.7 $8,817.6 
4 to 5 Category744.1 740.6 300.8 191.1 151.4 174.7 1,102.3 32.9 3,437.9 
6 to 9 Category50.8 30.5 — 13.7 — — 64.5 — 159.5 
Total Commercial and Institutional1,548.2 1,858.6 510.6 364.1 197.3 686.0 7,199.6 50.6 12,415.0 
CRE
Risk Rating:
1 to 3 Category318.7 227.4 123.6 123.5 39.8 39.1 113.4 3.0 988.5 
4 to 5 Category968.5 1,040.0 637.8 447.3 153.0 256.9 181.5 17.5 3,702.5 
6 to 9 Category 7.7 22.7 — 49.1 — — 2.5 — 82.0 
Total CRE1,294.9 1,290.1 761.4 619.9 192.8 296.0 297.4 20.5 4,773.0 
Non-U.S.
Risk Rating:
1 to 3 Category991.9 46.2 109.6 14.8 — 6.5 1,158.3 — 2,327.3 
4 to 5 Category459.0 — — — — 214.9 89.5 1.8 765.2 
6 to 9 Category0.1 — — 23.1 — — 15.4 — 38.6 
Total Non-U.S.1,451.0 46.2 109.6 37.9 — 221.4 1,263.2 1.8 3,131.1 
Other
Risk Rating:
1 to 3 Category993.9 — — — — — — — 993.9 
4 to 5 Category322.6 — — — — — — — 322.6 
Total Other1,316.5 — — — — — — — 1,316.5 
Total Commercial5,610.6 3,194.9 1,381.6 1,021.9 390.1 1,203.4 8,760.2 72.9 21,635.6 
Personal
Private Client
Risk Rating:
1 to 3 Category395.5 159.9 50.5 313.6 13.4 18.5 5,352.5 28.2 6,332.1 
4 to 5 Category430.3 755.1 192.4 191.3 38.7 160.0 5,728.6 267.2 7,763.6 
6 to 9 Category 0.9 — 0.1 — 18.6 — 3.7 — 23.3 
Total Private Client826.7 915.0 243.0 504.9 70.7 178.5 11,084.8 295.4 14,119.0 
RRE
Risk Rating:
1 to 3 Category871.6 666.7 567.7 168.1 102.9 750.8 128.4 7.9 3,264.1 
4 to 5 Category354.3 656.7 597.6 290.0 170.9 838.2 180.4 1.0 3,089.1 
6 to 9 Category — 6.8 1.5 1.1 3.7 35.9 11.3 — 60.3 
Total RRE1,225.9 1,330.2 1,166.8 459.2 277.5 1,624.9 320.1 8.9 6,413.5 
Non-U.S.
Risk Rating:
1 to 3 Category3.0 3.7 — — 4.6 2.3 124.6 — 138.2 
4 to 5 Category24.2 40.3 — 21.3 3.2 2.9 272.0 7.8 371.7 
6 to 9 Category — — — — — 0.1 — — 0.1 
Total Non-U.S.27.2 44.0 — 21.3 7.8 5.3 396.6 7.8 510.0 
Other
Risk Rating:
1 to 3 Category190.8 — — — — — — — 190.8 
4 to 5 Category24.4 — — — — — — — 24.4 
Total Other215.2 — — — — — — — 215.2 
Total Personal2,295.0 2,289.2 1,409.8 985.4 356.0 1,808.7 11,801.5 312.1 21,257.7 
Total Loans$7,905.6 $5,484.1 $2,791.4 $2,007.3 $746.1 $3,012.1 $20,561.7 $385.0 $42,893.3 

Past Due Status. Past due status is based on the length of time from the contractual due date a principal or interest payment has been past due. For disclosure purposes, loans that are 29 days past due or less are reported as current. The following table provides balances and delinquency status of accrual and nonaccrual loans by segment and class, as well as the other real estate owned and nonaccrual asset balances, as of December 31, 2023 and 2022.
TABLE 66: DELINQUENCY STATUS
ACCRUALNONACCRUAL WITH NO ALLOWANCE
(In Millions)CURRENT30 – 59 DAYS
PAST DUE
60 – 89 DAYS
PAST DUE
90 DAYS
OR MORE
PAST DUE
TOTAL ACCRUALNONACCRUALTOTAL LOANS
December 31, 2023
Commercial
Commercial and Institutional$11,374.6 $163.7 $0.7 $ $11,539.0 $16.3 $11,555.3 $4.1 
Commercial Real Estate5,123.7 4.4 6.1  5,134.2  5,134.2  
Non-U.S.2,778.5    2,778.5  2,778.5  
Other5,944.8    5,944.8  5,944.8  
Total Commercial25,221.6 168.1 6.8  25,396.5 16.3 25,412.8 4.1 
Personal
Private Client14,240.0 63.9 24.8 11.0 14,339.7 20.3 14,360.0 18.3 
Residential Real Estate6,283.0 7.5 0.5 9.1 6,300.1 27.0 6,327.1 27.0 
Non-U.S.428.2  0.6  428.8  428.8  
Other1,088.3    1,088.3  1,088.3  
Total Personal22,039.5 71.4 25.9 20.1 22,156.9 47.3 22,204.2 45.3 
Total Loans$47,261.1 $239.5 $32.7 $20.1 $47,553.4 $63.6 $47,617.0 $49.4 
Other Real Estate Owned$1.5 
Total Nonaccrual Assets$65.1 
ACCRUALNONACCRUAL WITH NO ALLOWANCE
(In Millions)CURRENT30 – 59 DAYS
PAST DUE
60 – 89 DAYS
PAST DUE
90 DAYS
OR MORE
PAST DUE
TOTAL ACCRUALNONACCRUALTOTAL LOANS
December 31, 2022
Commercial
Commercial and Institutional$12,353.7 $40.2 $3.0 $0.7 $12,397.6 $17.4 $12,415.0 $4.4 
Commercial Real Estate4,761.5 1.3 — — 4,762.8 10.2 4,773.0 6.2 
Non-U.S.3,131.1 — — — 3,131.1 — 3,131.1 — 
Other1,316.5 — — — 1,316.5 — 1,316.5 — 
Total Commercial21,562.8 41.5 3.0 0.7 21,608.0 27.6 21,635.6 10.6 
Personal
Private Client13,843.5 192.3 29.9 53.3 14,119.0 — 14,119.0 — 
Residential Real Estate6,373.2 9.6 12.3 0.1 6,395.2 18.3 6,413.5 18.3 
Non-U.S509.9 — — 0.1 510.0 — 510.0 — 
Other215.2 — — — 215.2 — 215.2 — 
Total Personal20,941.8 201.9 42.2 53.5 21,239.4 18.3 21,257.7 18.3 
Total Loans$42,504.6 $243.4 $45.2 $54.2 $42,847.4 $45.9 $42,893.3 $28.9 
Other Real Estate Owned$— 
Total Nonaccrual Assets$45.9 
Interest income that would have been recorded for nonaccrual loans and leases in accordance with their original terms was $3.4 million in 2023, $4.1 million in 2022, and $4.6 million in 2021.
Northern Trust may obtain physical possession of real estate via foreclosure on an in-substance repossession. As of December 31, 2023 and 2022, Northern Trust held foreclosed real estate properties with an immaterial carrying value for both years as a result of obtaining physical possession. In addition, as of December 31, 2023 and 2022, Northern Trust had loans with a carrying value of $3.5 million and $1.1 million, respectively, for which formal foreclosure proceedings were in process.
Loan Modifications to Borrowers Experiencing Financial Difficulty (After the Adoption of Accounting Standards Update No. 2022-02)
The following table shows the amortized cost basis of loan modifications provided to financially distressed borrowers that impacted the respective cash flows of the underlying loans as of December 31, 2023, disaggregated by relevant class of financing receivable and type of modification provided.
TABLE 67: LOAN MODIFICATIONS MADE TO BORROWERS EXPERIENCING FINANCIAL DIFFICULTY
YEAR ENDED DECEMBER 31, 2023
($ In Millions)LOAN MODIFICATION DETAILAMORTIZED COST BASIS% OF TOTAL SEGMENT
Commercial(1)
Commercial and InstitutionalTerm extension$16.7 0.14 %
Commercial Real EstatePrincipal and/or interest deferral  
Commercial Real EstateCombination of principal and/or interest deferral and term extension  
Total Commercial$16.7 0.07 %
Personal(1)
Private ClientTerm extension$  %
Private ClientPrincipal and/or interest deferral18.3 0.13 
Residential Real EstatePrincipal and/or interest deferral1.0 0.02 
Residential Real EstateInterest rate concession  
Residential Real EstateCombination of principal and/or interest deferral and term extension4.7 0.07 
Total Personal$24.0 0.11 %
Total Loans $40.7 0.09 %
(1) Included are financially distressed modifications for which the respective loans had no amortized cost basis as of December 31, 2023 due to pay-downs or charge-offs.

The following table describes the financial effect of the modifications made to borrowers experiencing financial difficulty.
TABLE 68: FINANCIAL EFFECT OF MODIFICATIONS MADE TO BORROWERS EXPERIENCING FINANCIAL DIFFICULTY
FINANCIAL EFFECT
PRINCIPAL AND INTEREST DEFERRAL
Commercial
Commercial Real Estate
Northern Trust provided a weighted average of 6 months payment deferrals to borrowers for total deferred principal and interest of $32.5 million.
Personal
Residential Real Estate
Northern Trust provided a weighted average of 14 months payment deferrals to borrowers for immaterial principal and interest deferral amounts.
Private Client
Northern Trust provided payment deferrals to borrowers until collateral sale is executed for total principal and interest of $18.9 million.
TERM EXTENSION
Commercial
Commercial and Institutional
Northern Trust provided weighted average term extension of 12 months.
Commercial Real Estate
Northern Trust provided weighted average term extension of 6 months.
Personal
Residential Real Estate
Northern Trust provided weighted average term extension of 9 months.
Private Client
Northern Trust provided weighted average term extension of 60 months.
INTEREST RATE CONCESSION
Personal
Residential Real Estate
Northern Trust provided a 2% reduction in the weighted average contractual interest rates.
The effectiveness of Northern Trust’s modification efforts is measured by the loans’ respective past-due status under the modified terms as of the end of the period. Of the loans that were modified since the adoption of ASU 2022-02 as of January 1, 2023, and were not performing in accordance with their modified terms and considered past due for purposes of these disclosures as of December 31, 2023, were $4.7 million 30-89 days past due and $16.2 million 90 days and greater past due. As of December 31, 2023, Northern Trust charged-off $2.0 million related to modifications to borrowers experiencing financial difficulty that had been processed since the adoption of ASU 2022-02.
There were no undrawn loan commitments or standby letters of credit issued to financially distressed borrowers for which Northern Trust had modified the payment terms of the loans as of December 31, 2023.
Troubled Debt Restructurings (Prior to the Adoption of Accounting Standard Update No. 2022-02)
Prior to January 1, 2023, a loan that was modified as a concession by Northern Trust or a bankruptcy court resulting from the debtor’s financial difficulties was referred to as a troubled debt restructuring (TDR). All TDRs were reported starting in the calendar year of their restructuring. In subsequent years, a TDR may cease being reported if the loan was modified at a market rate and performed according to the modified terms for at least six payment periods. A loan that was modified at a below market rate returned to accrual status if it satisfied the six-payment-period performance requirement.
The expected credit loss was measured based upon the present value of expected future cash flows, discounted at the effective interest rate based on the original contractual rate. If a loan’s contractual interest rate varied based on subsequent changes in an independent factor, such as an index or rate, the loan’s effective interest rate was calculated based on the factor as it changed over the life of the loan. Northern Trust elected not to project changes in the factor for purposes of estimating expected future cash flows. Further, Northern Trust elected not to adjust the effective interest rate for prepayments. If the loan was collateral dependent, the expected loss was measured based on the fair value of the collateral at the reporting date. If the loan valuation was less than the recorded value of the loan, either an allowance was established or a charge-off was recorded for the difference. Smaller balance (individually less than $1 million) homogeneous loans were collectively evaluated. Northern Trust’s accounting policies for material nonaccrual loans was consistent across all classes of loans.
All loans with TDR modifications were evaluated for additional expected credit losses. The nature and extent of further deterioration in credit quality, including a subsequent default, was considered in the determination of an appropriate level of allowance for credit losses.
Included within nonaccrual loans were $35.3 million of nonaccrual TDRs, and $39.7 million of accrual TDRs as of December 31, 2022. There were $0.2 million of aggregate undrawn loan commitments and standby letters of credit at December 31, 2022, issued to borrowers with TDR modifications of loans.
TDR modifications involved extensions of term, deferrals of principal, interest rate concessions, and other modifications. Other modifications typically reflected other nonstandard terms which Northern Trust would not offer in non-troubled situations.
The following table provides, by segment and class, the number of TDR modifications of loans entered into during the year ended December 31, 2022, and the recorded investments and unpaid principal balances as of December 31, 2022.

TABLE 69: TROUBLED DEBT RESTRUCTURINGS
($ In Millions)LOAN MODIFICATION DETAILNUMBER OF
LOANS
RECORDED
INVESTMENT
UNPAID
PRINCIPAL
BALANCE
December 31, 2022
Commercial
Commercial and InstitutionalInterest rate concession, extension of term, and other modification$0.6 $0.6 
Commercial Real EstateInterest rate concession and other modification31.6 32.5 
Total Commercial32.2 33.1 
Personal
Residential Real EstateInterest rate concession, deferrals of principal, extension of term, and other modification 0.2 0.2 
Private Client Interest rate concession and extension of term0.4 0.4 
Total Personal0.6 0.6 
Total Loans$32.8 $33.7 
Note: Period-end balances reflect all paydowns and charge-offs during the year.
There were no loan TDR modifications during the previous twelve-month period which subsequently had a payment default during the year ended December 31, 2022.