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v3.24.3

Investment Securities (Summary) (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Securities Available for Sale |  |
Total | $ 62,650 | $ 45,353
Unrealized gains | 458 | 257
Unrealized losses | (2,770) | (3,825)
Fair Value | 60,338 | 41,785
Securities Held to Maturity |  |
Total | 83,845 | 90,784
Unrealized gains | 312 | 179
Unrealized losses | (2,759) | (4,015)
Fair Value | 81,398 | 86,948
Accrued interest, held-to-maturity | 234 | 281
Accrued interest, available-for-sale | 247 | 144
Debt securities, available for sale, amortized cost | 88 | 86
Debt securities, held to maturity, amortized cost | 5 | 6
Net unrealized losses, related to securities transferred at fair value to held to maturity at a point in time | $ 3,600 | $ 4,200
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 | $ 22,955 | $ 7,596
Unrealized gains | 106 | 22
Unrealized losses | (422) | (667)
Fair Value | 22,639 | 6,951
Securities Held to Maturity |  |
Total | 33,824 | 36,529
Unrealized gains | 24 | 9
Unrealized losses | (602) | (1,141)
Fair Value | 33,246 | 35,397
Agency |  |
Securities Available for Sale |  |
Total | 31,666 | 30,643
Unrealized gains | 126 | 46
Unrealized losses | (2,131) | (2,809)
Fair Value | 29,661 | 27,880
Securities Held to Maturity |  |
Total | 40,983 | 42,686
Unrealized gains | 179 | 92
Unrealized losses | (2,090) | (2,733)
Fair Value | 39,072 | 40,045
Residential mortgage- backed non-agency |  |
Securities Available for Sale |  |
Total | 517 | 585
Unrealized gains | 116 | 118
Unrealized losses | (5) | (7)
Fair Value | 628 | 696
Securities Held to Maturity |  |
Total | 245 | 259
Unrealized gains |  |
Unrealized losses | (10) | (17)
Fair Value | 235 | 242
Agency |  |
Securities Available for Sale |  |
Total | 1,980 | 1,680
Unrealized gains | 5 | 1
Unrealized losses | (93) | (135)
Fair Value | 1,892 | 1,546
Securities Held to Maturity |  |
Total | 972 | 939
Unrealized gains | 17 | 9
Unrealized losses | (12) | (23)
Fair Value | 977 | 925
Commercial mortgage- backed non-agency |  |
Securities Available for Sale |  |
Total | 752 | 913
Unrealized gains |  | 1
Unrealized losses | (18) | (45)
Fair Value | 734 | 869
Securities Held to Maturity |  |
Total | 1,006 | 1,373
Unrealized gains | 3 | 2
Unrealized losses | (10) | (27)
Fair Value | 999 | 1,348
Asset-backed |  |
Securities Available for Sale |  |
Total | 2,229 | 1,092
Unrealized gains | 61 | 25
Unrealized losses | (1) | (1)
Fair Value | 2,289 | 1,116
Securities Held to Maturity |  |
Total | 4,006 | 5,890
Unrealized gains | 45 | 17
Unrealized losses | (11) | (39)
Fair Value | 4,040 | 5,868
Other |  |
Securities Available for Sale |  |
Total | 2,551 | 2,844
Unrealized gains | 44 | 44
Unrealized losses | (100) | (161)
Fair Value | 2,495 | 2,727
Securities Held to Maturity |  |
Total | 2,809 | 3,108
Unrealized gains | 44 | 50
Unrealized losses | (24) | (35)
Fair Value | $ 2,829 | $ 3,123

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