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Other Operating Income
 6 Months Ended
Jun. 30, 2026
Other Income and Expenses [Abstract]  
Other Operating Income Other Operating Income
The components of Other Operating Income were as follows.
TABLE 62: OTHER OPERATING INCOME
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2026202520262025
Loan Service Fees$11.8 $12.5 $23.8 $26.2 
Banking Service Fees13.1 14.1 26.4 28.4 
Bank Owned Life Insurance20.1 19.6 39.6 38.9 
Treasury Management Fees(1)
9.1 9.7 19.4 19.3 
Other Income(2)
540.1 10.2 555.4 13.6 
Total Other Operating Income$594.2 $66.1 $664.7 $126.4 
(1) Beginning in Q1 2026, Treasury Management Fees are included within Other Operating Income. The prior period has been revised to conform to the current year presentation.
(2) Other Income includes the mark-to-market loss on derivative swap activity related to previous sales of certain Visa Class B common shares and gains related to Northern Trust’s participation in the Visa Exchange Offer program, including a $525.4 million gain for the three and six months ended June 30, 2026 related to Northern Trust’s participation in the second Visa Exchange Offer. Refer to Note 20—Commitments and Contingent Liabilities for further information.
Other Operating Expense
The components of Other Operating Expense were as follows.
TABLE 63: OTHER OPERATING EXPENSE
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
 In Millions)2026202520262025
Business Promotion$19.1 $22.2 $37.0 $39.1 
Staff Related12.3 7.0 22.1 11.2 
FDIC Insurance Premiums7.4 9.5 15.2 17.4 
Other Expenses53.5 52.2 107.8 107.2 
Total Other Operating Expense$92.3 $90.9 $182.0 $174.9