AFS and HTM Debt Securities, Outstanding (Details) - USD ($)
$ in Millions |
12 Months Ended |
Dec. 31, 2025 |
Dec. 31, 2024 |
| Available-for-sale debt securities: |
|
|
| Available-for-sale, at amortized cost, net of allowance for credit losses, excluding portfolio level basis adjustments |
$ 215,700
|
$ 170,650
|
| Available-for sale, at amortized cost, net of allowance for credit losses, including portfolio level basis adjustments |
215,775
|
170,607
|
| Available-for-sale, gross unrealized gains, excluding portfolio level basis adjustments |
1,864
|
155
|
| Available-for-sale, gross unrealized gains |
1,864
|
155
|
| Available-for-sale, gross unrealized losses, excluding portfolio level basis adjustments |
(3,991)
|
(7,827)
|
| Available-for-sale, gross unrealized losses |
(3,991)
|
(7,827)
|
| Available-for-sale, net unrealized gains (losses), excluding portfolio level basis adjustments |
(2,127)
|
(7,672)
|
| Available-for-sale, net unrealized gains (losses) |
(2,202)
|
(7,629)
|
| Available-for-sale, at fair value excluding portfolio level basis adjustments |
213,573
|
162,978
|
| Available-for-sale debt securities, at fair value |
213,573
|
162,978
|
| Held-to-maturity debt securities: |
|
|
| Held-to-maturity, amortized cost, net |
208,023
|
234,948
|
| Held-to-maturity, gross unrealized gains |
189
|
106
|
| Held-to-maturity, gross unrealized losses |
(32,415)
|
(41,275)
|
| Held-to-maturity, net unrealized gains (losses) |
(32,226)
|
(41,169)
|
| Held-to-maturity, at fair value |
175,797
|
193,779
|
| Total AFS and HTM Debt securities: |
|
|
| Amortized cost including portfolio level basis adjustment, net |
423,798
|
405,555
|
| Debt securities, gross unrealized gains |
2,053
|
261
|
| Debt securities, gross unrealized losses |
(36,406)
|
(49,102)
|
| Debt securities, net unrealized gains (losses) |
(34,428)
|
(48,798)
|
| Fair value |
$ 389,370
|
$ 356,757
|
| AFS and HTM Debt Securities Textual [Abstract] |
|
|
| Debt securities, available-for-sale, accounting policy election, accrued interest writeoff method [Fixed List] |
Reversing interest income
|
Reversing interest income
|
| Debt securities, held-to-maturity, accounting policy election, accrued interest writeoff method [Fixed List] |
Reversing interest income
|
Reversing interest income
|
| Debt securities, available-for-sale, excluded accrued interest from amortized cost [true false] |
true
|
true
|
| Debt securities, held-to-maturity, excluded accrued interest [true false] |
true
|
true
|
| Allowance for credit loss, available-for-sale debt securities |
$ 23
|
$ 34
|
| Allowance for credit loss, held-to-maturity debt securities |
95
|
95
|
| Fair value hedging [Member] |
|
|
| Available-for-sale debt securities: |
|
|
| Portfolio level basis adjustments |
75
|
(43)
|
| Reversal of portfolio level basis adjustments |
(75)
|
43
|
| Securities of U.S. Treasury and federal agencies [Member] |
|
|
| Available-for-sale debt securities: |
|
|
| Available-for-sale, at amortized cost, net of allowance for credit losses, excluding portfolio level basis adjustments |
51,738
|
23,791
|
| Available-for-sale, gross unrealized gains, excluding portfolio level basis adjustments |
308
|
1
|
| Available-for-sale, gross unrealized losses, excluding portfolio level basis adjustments |
(237)
|
(507)
|
| Available-for-sale, net unrealized gains (losses), excluding portfolio level basis adjustments |
71
|
(506)
|
| Available-for-sale, at fair value excluding portfolio level basis adjustments |
51,809
|
23,285
|
| Available-for-sale debt securities, at fair value |
51,809
|
|
| Held-to-maturity debt securities: |
|
|
| Held-to-maturity, amortized cost, net |
3,797
|
3,794
|
| Held-to-maturity, gross unrealized gains |
0
|
0
|
| Held-to-maturity, gross unrealized losses |
(1,747)
|
(1,779)
|
| Held-to-maturity, net unrealized gains (losses) |
(1,747)
|
(1,779)
|
| Held-to-maturity, at fair value |
2,050
|
2,015
|
| Securities of U.S. states and political subdivisions [Member] |
|
|
| Available-for-sale debt securities: |
|
|
| Available-for-sale, at amortized cost, net of allowance for credit losses, excluding portfolio level basis adjustments |
10,706
|
12,542
|
| Available-for-sale, gross unrealized gains, excluding portfolio level basis adjustments |
34
|
11
|
| Available-for-sale, gross unrealized losses, excluding portfolio level basis adjustments |
(343)
|
(518)
|
| Available-for-sale, net unrealized gains (losses), excluding portfolio level basis adjustments |
(309)
|
(507)
|
| Available-for-sale, at fair value excluding portfolio level basis adjustments |
10,397
|
12,035
|
| Available-for-sale debt securities, at fair value |
10,397
|
12,035
|
| Held-to-maturity debt securities: |
|
|
| Held-to-maturity, amortized cost, net |
17,476
|
18,200
|
| Held-to-maturity, gross unrealized gains |
2
|
0
|
| Held-to-maturity, gross unrealized losses |
(3,270)
|
(3,342)
|
| Held-to-maturity, net unrealized gains (losses) |
(3,268)
|
(3,342)
|
| Held-to-maturity, at fair value |
14,208
|
14,858
|
| Securities of U.S. states and political subdivisions [Member] | Nontaxable preferred debt securities [Member] |
|
|
| Available-for-sale debt securities: |
|
|
| Available-for-sale, at amortized cost, net of allowance for credit losses, excluding portfolio level basis adjustments |
2,500
|
2,800
|
| Available-for-sale, at fair value excluding portfolio level basis adjustments |
2,500
|
2,800
|
| Federal agency mortgage-backed securities [Member] |
|
|
| Available-for-sale debt securities: |
|
|
| Available-for-sale, at amortized cost, net of allowance for credit losses, excluding portfolio level basis adjustments |
142,022
|
129,703
|
| Available-for-sale, gross unrealized gains, excluding portfolio level basis adjustments |
1,447
|
84
|
| Available-for-sale, gross unrealized losses, excluding portfolio level basis adjustments |
(3,389)
|
(6,758)
|
| Available-for-sale, net unrealized gains (losses), excluding portfolio level basis adjustments |
(1,942)
|
(6,674)
|
| Available-for-sale, at fair value excluding portfolio level basis adjustments |
140,080
|
123,029
|
| Available-for-sale debt securities, at fair value |
140,080
|
|
| Held-to-maturity debt securities: |
|
|
| Held-to-maturity, amortized cost, net |
178,882
|
193,982
|
| Held-to-maturity, gross unrealized gains |
79
|
0
|
| Held-to-maturity, gross unrealized losses |
(27,353)
|
(36,029)
|
| Held-to-maturity, net unrealized gains (losses) |
(27,274)
|
(36,029)
|
| Held-to-maturity, at fair value |
151,608
|
157,953
|
| Non-agency mortgage-backed securities [Member] |
|
|
| Available-for-sale debt securities: |
|
|
| Available-for-sale, at amortized cost, net of allowance for credit losses, excluding portfolio level basis adjustments |
2,141
|
1,844
|
| Available-for-sale, gross unrealized gains, excluding portfolio level basis adjustments |
3
|
3
|
| Available-for-sale, gross unrealized losses, excluding portfolio level basis adjustments |
(18)
|
(41)
|
| Available-for-sale, net unrealized gains (losses), excluding portfolio level basis adjustments |
(15)
|
(38)
|
| Available-for-sale, at fair value excluding portfolio level basis adjustments |
2,126
|
1,806
|
| Available-for-sale debt securities, at fair value |
2,126
|
|
| Held-to-maturity debt securities: |
|
|
| Held-to-maturity, amortized cost, net |
1,497
|
1,364
|
| Held-to-maturity, gross unrealized gains |
82
|
50
|
| Held-to-maturity, gross unrealized losses |
(39)
|
(81)
|
| Held-to-maturity, net unrealized gains (losses) |
43
|
(31)
|
| Held-to-maturity, at fair value |
1,540
|
1,333
|
| Collateralized loan obligations [Member] |
|
|
| Available-for-sale debt securities: |
|
|
| Available-for-sale, at amortized cost, net of allowance for credit losses, excluding portfolio level basis adjustments |
7,895
|
2,196
|
| Available-for-sale, gross unrealized gains, excluding portfolio level basis adjustments |
11
|
6
|
| Available-for-sale, gross unrealized losses, excluding portfolio level basis adjustments |
(2)
|
0
|
| Available-for-sale, net unrealized gains (losses), excluding portfolio level basis adjustments |
9
|
6
|
| Available-for-sale, at fair value excluding portfolio level basis adjustments |
7,904
|
2,202
|
| Available-for-sale debt securities, at fair value |
7,904
|
2,202
|
| Held-to-maturity debt securities: |
|
|
| Held-to-maturity, amortized cost, net |
4,655
|
15,888
|
| Held-to-maturity, gross unrealized gains |
19
|
56
|
| Held-to-maturity, gross unrealized losses |
0
|
0
|
| Held-to-maturity, net unrealized gains (losses) |
19
|
56
|
| Held-to-maturity, at fair value |
4,674
|
15,944
|
| Other debt securities [Member] |
|
|
| Available-for-sale debt securities: |
|
|
| Available-for-sale, at amortized cost, net of allowance for credit losses, excluding portfolio level basis adjustments |
1,198
|
574
|
| Available-for-sale, gross unrealized gains, excluding portfolio level basis adjustments |
61
|
50
|
| Available-for-sale, gross unrealized losses, excluding portfolio level basis adjustments |
(2)
|
(3)
|
| Available-for-sale, net unrealized gains (losses), excluding portfolio level basis adjustments |
59
|
47
|
| Available-for-sale, at fair value excluding portfolio level basis adjustments |
1,257
|
621
|
| Available-for-sale debt securities, at fair value |
1,257
|
|
| Held-to-maturity debt securities: |
|
|
| Held-to-maturity, amortized cost, net |
1,716
|
1,720
|
| Held-to-maturity, gross unrealized gains |
7
|
0
|
| Held-to-maturity, gross unrealized losses |
(6)
|
(44)
|
| Held-to-maturity, net unrealized gains (losses) |
1
|
(44)
|
| Held-to-maturity, at fair value |
$ 1,717
|
$ 1,676
|