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Cash and Cash Equivalents - Summary (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Cash and Cash Equivalents [Abstract]    
Cash and due from banks $ 8,356 $ 7,323
Interest bearing deposits with banks 93,949 81,909
Total Cash and cash equivalents 102,305 89,232
Restricted cash $ 32,492 $ 30,571