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PREMISES AND EQUIPMENT (Tables)
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment
Premises and equipment were comprised of the following at December 31, 2020 and 2019:
 At December 31,
(dollar amounts in millions)20202019
Land and land improvements$198 $189 
Buildings586 587 
Leasehold improvements203 205 
Equipment736 742 
Total premises and equipment1,723 1,723 
Less accumulated depreciation and amortization(966)(960)
Net premises and equipment$757 $763 
Depreciation and amortization charged to expense and rental income credited to net occupancy expense
Depreciation and amortization charged to expense and rental income credited to net occupancy expense for the three years ended December 31, 2020, 2019, and 2018 were:
(dollar amounts in millions)202020192018
Total depreciation and amortization of premises and equipment$119 $116 $130 
Rental income credited to occupancy expense10 11 13