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Allowance for Credit Losses - Narrative (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
scenario
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
scenario
Sep. 30, 2024
USD ($)
Credit Loss [Abstract]        
Number of updated forward-looking economic scenarios | scenario 4   4  
Charge-off of accrued interest receivables | $ $ 0 $ 0 $ 0 $ 0