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Federal, State, and Local Taxes - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]        
Net operating loss carryforwards $ 8,000,000 $ 15,000,000    
Total state net operating loss carryforwards   185,000,000    
Valuation allowance 5,000,000 5,000,000    
Low income housing tax credits 372,000,000 304,000,000    
Affordable housing tax credit commitment $ 210,000,000 183,000,000    
Commitments that expect to be funded period 5 years      
Affordable housing tax credits $ 34,000,000 11,000,000 $ 9,000,000  
Affordable housing tax credit amortization 30,000,000 10,000,000 9,000,000  
Affordable housing tax credit write down 0 0 0  
Unrecognized tax benefits 42,000,000 40,000,000 39,000,000 $ 38,000,000
Income tax expense interest and penalties 8,000,000 4,000,000 $ 4,000,000  
Income tax accrued interest expense and penalties 34,000,000 26,000,000    
Would impact effective rate rate amount 34,000,000 $ 32,000,000    
Unrecognized tax benefit decrease 21,000,000      
Bad debt reserve 62,000,000      
Federal deferred tax liability, bad debt reserve $ 13,000,000