Annual report pursuant to Section 13 and 15(d)

PREMISES AND EQUIPMENT (Details)

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PREMISES AND EQUIPMENT (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross $ 1,705 $ 1,742  
Less accumulated depreciation and amortization (915) (878)  
Net premises and equipment 790 864  
Property Plant and Equipment Income Statement Disclosures [Abstract]      
Total depreciation and amortization of premises and equipment 130 123 $ 126
Rental income credited to occupancy expense 13 14 $ 13
Land and land improvements      
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross 188 193  
Buildings      
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross 579 563  
Leasehold improvements      
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross 199 240  
Equipment      
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross $ 739 $ 746