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Deposits - Schedule of Time Deposit Maturities (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Statistical Disclosure for Banks [Abstract]    
2023 $ 6,765  
2024 1,223  
2025 695  
2026 369  
2027 67  
Thereafter 123  
Total time deposits $ 9,242 $ 2,481