Quarterly report [Sections 13 or 15(d)]

INVESTMENT SECURITIES AND OTHER SECURITIES - Contractual Maturities (Details)

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INVESTMENT SECURITIES AND OTHER SECURITIES - Contractual Maturities (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Available-for-sale securities, amortized cost:    
Under 1 year $ 3,073 $ 3,620
After 1 year through 5 years 6,716 5,993
After 5 years through 10 years 1,666 1,857
After 10 years 19,402 19,273
Total available-for-sale securities 30,857 30,743
Available-for-sale securities, fair value:    
Under 1 year 3,071 3,624
After 1 year through 5 years 6,627 5,844
After 5 years through 10 years 1,554 1,732
After 10 years 16,587 16,073
Total available-for-sale securities 27,839 27,273
Held-to-maturity securities, amortized cost:    
Under 1 year 201 255
After 1 year through 5 years 2,143 1,818
After 5 years through 10 years 67 65
After 10 years 13,904 14,230
Total held-to-maturity securities 16,315 16,368
Held-to-maturity securities, fair value:    
Under 1 year 200 256
After 1 year through 5 years 2,144 1,796
After 5 years through 10 years 64 60
After 10 years 11,936 11,974
Total held-to-maturity securities $ 14,344 $ 14,086