v3.25.2
Investment Securities (Summary) (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Securities Available-for-Sale    
Total $ 69,758 $ 65,498
Unrealized gains 417 243
Unrealized losses (3,039) (3,702)
Fair Value 67,136 62,039
Securities Held-to-Maturity    
Total 75,212 77,693
Unrealized gains 199 78
Unrealized losses (3,491) (4,713)
Fair Value 71,920 73,058
Accrued interest, held-to-maturity 235 242
Accrued interest, available-for-sale 325 328
Debt securities, available for sale, allowance for credit loss 63 86
Debt securities, held to maturity, allowance for credit loss 5 5
Net unrealized losses, related to securities transferred at fair value to held to maturity at a point in time $ 3,000 $ 3,400
Fitch, AAA OR AA Rating | Credit Concentration Risk | Investments    
Securities Held-to-Maturity    
Concentration risk, percentage 97.00% 97.00%
U.S. Treasury and government agencies    
Securities Available-for-Sale    
Total $ 26,275 $ 23,962
Unrealized gains 113 25
Unrealized losses (426) (436)
Fair Value 25,962 23,551
Securities Held-to-Maturity    
Total 26,116 29,420
Unrealized gains 19 0
Unrealized losses (506) (896)
Fair Value 25,629 28,524
Residential mortgage-backed agency    
Securities Available-for-Sale    
Total 34,916 33,589
Unrealized gains 89 28
Unrealized losses (2,432) (2,991)
Fair Value 32,573 30,626
Securities Held-to-Maturity    
Total 42,352 40,171
Unrealized gains 114 16
Unrealized losses (2,883) (3,696)
Fair Value 39,583 36,491
Residential mortgage- backed non-agency    
Securities Available-for-Sale    
Total 474 504
Unrealized gains 112 105
Unrealized losses (5) (6)
Fair Value 581 603
Securities Held-to-Maturity    
Total 230 240
Unrealized gains 0 0
Unrealized losses (16) (21)
Fair Value 214 219
Commercial mortgage-backed agency    
Securities Available-for-Sale    
Total 2,983 2,077
Unrealized gains 12 1
Unrealized losses (86) (133)
Fair Value 2,909 1,945
Securities Held-to-Maturity    
Total 934 955
Unrealized gains 9 3
Unrealized losses (12) (28)
Fair Value 931 930
Commercial mortgage- backed non-agency    
Securities Available-for-Sale    
Total 507 706
Unrealized gains 0 0
Unrealized losses (7) (15)
Fair Value 500 691
Securities Held-to-Maturity    
Total 575 836
Unrealized gains 4 3
Unrealized losses (2) (7)
Fair Value 577 832
Asset-backed    
Securities Available-for-Sale    
Total 2,481 2,353
Unrealized gains 46 42
Unrealized losses 0 (3)
Fair Value 2,527 2,392
Securities Held-to-Maturity    
Total 2,507 3,380
Unrealized gains 38 37
Unrealized losses (10) (16)
Fair Value 2,535 3,401
Other    
Securities Available-for-Sale    
Total 2,122 2,307
Unrealized gains 45 42
Unrealized losses (83) (118)
Fair Value 2,084 2,231
Securities Held-to-Maturity    
Total 2,498 2,691
Unrealized gains 15 19
Unrealized losses (62) (49)
Fair Value $ 2,451 $ 2,661