XML 89 R76.htm IDEA: XBRL DOCUMENT v3.22.4
Investment Securities - Held-to-Maturity Allowance for Credit Losses (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Held-to-maturity, Allowance for Credit Loss $ 1.9 $ 0.0 $ 0.0 $ 0.0
Debt Securities, Held-to-maturity, Credit Loss Expense (Reversal) $ 1.9 $ 0.0 $ 0.0