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Premises and Equipment (Tables)
12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Schedule of Premises and Equipment
Major classifications of premises and equipment at December 31, 2023 and 2022 are summarized as follows:
dollars in millionsUseful Life (years)20232022
Landindefinite$403 $352 
Premises and leasehold improvements
3 - 30
1,609 1,458 
Furniture, equipment and software
3 - 15
1,260 840 
Total3,272 2,650 
Less accumulated depreciation and amortization1,395 1,194 
Premises and equipment, net$1,877 $1,456