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Borrowings - Maturity Dates of FHLB Advances and Other Borrowings (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Debt Disclosure [Abstract]    
2022 $ 3,301  
2023 500  
2024 100  
2025 0  
Thereafter 100  
Total $ 4,001 $ 3,280