Quarterly report [Sections 13 or 15(d)]

Securities - Gross Realized Gains (Losses) on Sales of Available For Sale Debt Securities (Details)

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Securities - Gross Realized Gains (Losses) on Sales of Available For Sale Debt Securities (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]    
Gross gains $ 11 $ 11
Gross losses (13) (1)
Net gains (losses) on sales of AFS debt securities (2) 10
Income tax expense (benefit) attributable to realized net gains (losses) on sales of AFS debt securities $ 0 $ 2