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Premises, Equipment and Software, Net
 12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
PREMISES, EQUIPMENT AND SOFTWARE, NET .    PREMISES, EQUIPMENT AND SOFTWARE, NET
Premises, equipment and software, net are summarized as follows:
(In millions)December 31,
20202019
Land$257 $235 
Buildings802 747 
Furniture and equipment420 442 
Leasehold improvements165 164 
Software581 507 
Total 1
2,225 2,095 
Less accumulated depreciation and amortization1,016 953 
Net book value$1,209 $1,142 
1 Amounts include $213 million at December 31, 2020, and $105 million at December 31, 2019, of costs that have been capitalized but are not yet depreciating because the respective assets have not been placed in service.