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Premises and Equipment (Notes)
 12 Months Ended
Dec. 31, 2024
Premises and Equipments [Abstract]  
Premises and Equipment PREMISES AND EQUIPMENT
A summary of premises and equipment by major category follows:
(in millions)  
December 3120242023
Land$78 $81 
Buildings and improvements804 768 
Furniture and equipment476 536 
Total cost1,358 1,385 
Less: Accumulated depreciation and amortization(885)(940)
Net book value$473 $445 
The Corporation conducts a portion of its business from leased facilities and leases certain equipment. Refer to Note 25 for more information on leased facilities and equipment.
Other assets included unamortized capitalized software costs of $137 million and $106 million at December 31, 2024 and 2023, respectively. Noninterest expenses included software amortization expense of $28 million, $26 million and $25 million for the years ending December 31, 2024, 2023 and 2022, respectively.