v3.25.2
Other Operating Expense (Tables)
 6 Months Ended
Jun. 30, 2025
Other Income and Expenses [Abstract]  
Summary of Other Operating Expense
The components of Other Operating Expense were as follows.
TABLE 66: OTHER OPERATING EXPENSE
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
 In Millions)2025202420252024
Business Promotion$22.2 $20.8 $39.1 $37.5 
Staff Related7.0 8.2 11.2 22.4 
FDIC Insurance Premiums(1)
9.5 9.8 17.4 28.5 
Charitable Contributions(2)
3.1 74.0 5.0 76.0 
Other Expenses49.1 62.5 102.2 111.3 
Total Other Operating Expense$90.9 $175.3 $174.9 $275.7 
(1) FDIC Insurance Premiums include an additional FDIC Special Assessment charge of $2.3 million for the three months ended June 30, 2024 and $14.7 million for the six months ended June 30, 2024. Refer to Note 20—Commitments and Contingent Liabilities for further information.
(2) Charitable Contributions include a $70 million contribution to the Northern Trust Foundation for the three and six months ended June 30, 2024.