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Cash and Cash Equivalents
3 Months Ended
Mar. 31, 2022
Cash and Cash Equivalents [Abstract]  
Cash and Cash Equivalents Cash and Cash Equivalents
The following table details our cash and cash equivalents at March 31, 2022 and December 31, 2021:
(Dollars in millions)March 31, 2022December 31, 2021
Cash and due from banks $1,713 $2,201 
Interest bearing deposits with the Federal Reserve Bank13,246 5,686 
Interest bearing deposits with other institutions5,147 5,773 
Securities purchased under agreements to resell (1)420 607 
Other short-term investment securities80 352 
Total cash and cash equivalents$20,606 $14,619 
(1)At March 31, 2022 and December 31, 2021, securities purchased under agreements to resell were collateralized by U.S. Treasury securities and U.S. agency securities with aggregate fair values of $427 million and $620 million, respectively. None of these securities were sold or repledged as of March 31, 2022 and December 31, 2021.