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Premises and Equipment
12 Months Ended
Dec. 31, 2020
Premises and Equipments [Abstract]  
Premises and Equipment PREMISES AND EQUIPMENT
A summary of premises and equipment by major category follows:
(in millions)  
December 3120202019
Land$86 $86 
Buildings and improvements847 818 
Furniture and equipment485 513 
Total cost1,418 1,417 
Less: Accumulated depreciation and amortization(959)(960)
Net book value$459 $457 
The Corporation conducts a portion of its business from leased facilities and leases certain equipment. Rental expense for leased properties and equipment amounted to $79 million, $81 million and $75 million in 2020, 2019 and 2018, respectively. Refer to Note 26 for more information on leased facilities and equipment.