Securities - Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities (Details) - USD ($)
$ in Millions |
Sep. 30, 2025 |
Dec. 31, 2024 |
| Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] |
|
|
| Due in one year or less, amount |
$ 688
|
|
| Due in one year or less, yield |
1.85%
|
|
| Due after one year through five years, amount |
$ 62,201
|
|
| Due after one year through five years, yield |
1.40%
|
|
| Due after five years through ten years, amount |
$ 59,706
|
|
| Due after five years though ten years, yield |
1.39%
|
|
| Due after ten years, amount |
$ 408,854
|
|
| Due after ten years, yield |
2.12%
|
|
| Amortized Cost |
$ 531,449
|
$ 558,713
|
| Total, yield |
1.95%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Fair Value |
$ 404,636
|
358,607
|
| Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract] |
|
|
| Due in One Year or Less |
681
|
|
| Due after One Year through Five Years |
56,033
|
|
| Due after Five Years through Ten Years |
52,725
|
|
| Due after Ten Years |
337,105
|
|
| Held-to-maturity, fair value |
446,544
|
450,548
|
| Available-for-sale debt securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 79,656
|
|
| Due in one year or less, yield |
3.91%
|
|
| Due after one year through five years, amount |
$ 223,447
|
|
| Due after one year through five years, yield |
3.66%
|
|
| Due after five years through ten years, amount |
$ 38,632
|
|
| Due after five years through ten years, yield |
3.82%
|
|
| Due after ten years, amount |
$ 65,561
|
|
| Due after ten years, yield |
4.66%
|
|
| Amount |
$ 407,296
|
|
| Total, yield |
3.89%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 79,877
|
|
| Due after one year through five years, amount |
222,771
|
|
| Due after five years though ten years, amount |
38,287
|
|
| Due after ten years, amount |
63,701
|
|
| Fair Value |
404,636
|
|
| Mortgage-backed securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 127
|
|
| Due in one year or less, yield |
2.80%
|
|
| Due after one year through five years, amount |
$ 13,027
|
|
| Due after one year through five years, yield |
4.18%
|
|
| Due after five years through ten years, amount |
$ 16,986
|
|
| Due after five years through ten years, yield |
4.37%
|
|
| Due after ten years, amount |
$ 56,479
|
|
| Due after ten years, yield |
4.84%
|
|
| Amount |
$ 86,619
|
|
| Total, yield |
4.64%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 126
|
|
| Due after one year through five years, amount |
13,006
|
|
| Due after five years though ten years, amount |
16,877
|
|
| Due after ten years, amount |
54,775
|
|
| Fair Value |
84,784
|
|
| Agency |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due in one year or less, yield |
0.00%
|
|
| Due after one year through five years, amount |
$ 4
|
|
| Due after one year through five years, yield |
2.71%
|
|
| Due after five years through ten years, amount |
$ 5
|
|
| Due after five years through ten years, yield |
4.06%
|
|
| Due after ten years, amount |
$ 33,299
|
|
| Due after ten years, yield |
4.57%
|
|
| Amount |
$ 33,308
|
|
| Total, yield |
4.57%
|
|
| Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due in one year or less, yield |
0.00%
|
|
| Due after one year through five years, amount |
$ 0
|
|
| Due after one year through five years, yield |
0.00%
|
|
| Due after five years through ten years, amount |
$ 53
|
|
| Due after five years though ten years, yield |
2.89%
|
|
| Due after ten years, amount |
$ 403,801
|
|
| Due after ten years, yield |
2.11%
|
|
| Amortized Cost |
$ 403,854
|
430,135
|
| Total, yield |
2.11%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due after one year through five years, amount |
4
|
|
| Due after five years though ten years, amount |
6
|
|
| Due after ten years, amount |
31,930
|
|
| Fair Value |
31,940
|
|
| Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract] |
|
|
| Due in One Year or Less |
0
|
|
| Due after One Year through Five Years |
0
|
|
| Due after Five Years through Ten Years |
50
|
|
| Due after Ten Years |
332,767
|
|
| Held-to-maturity, fair value |
332,817
|
341,677
|
| Agency-collateralized mortgage obligations |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due in one year or less, yield |
0.00%
|
|
| Due after one year through five years, amount |
$ 0
|
|
| Due after one year through five years, yield |
0.00%
|
|
| Due after five years through ten years, amount |
$ 1
|
|
| Due after five years through ten years, yield |
1.00%
|
|
| Due after ten years, amount |
$ 20,417
|
|
| Due after ten years, yield |
5.21%
|
|
| Amount |
$ 20,418
|
|
| Total, yield |
5.21%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due after one year through five years, amount |
0
|
|
| Due after five years though ten years, amount |
1
|
|
| Due after ten years, amount |
20,281
|
|
| Fair Value |
20,282
|
|
| Commercial |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 127
|
|
| Due in one year or less, yield |
2.80%
|
|
| Due after one year through five years, amount |
$ 13,023
|
|
| Due after one year through five years, yield |
4.18%
|
|
| Due after five years through ten years, amount |
$ 16,980
|
|
| Due after five years through ten years, yield |
4.37%
|
|
| Due after ten years, amount |
$ 2,217
|
|
| Due after ten years, yield |
3.61%
|
|
| Amount |
$ 32,347
|
|
| Total, yield |
4.23%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 126
|
|
| Due after one year through five years, amount |
13,002
|
|
| Due after five years though ten years, amount |
16,870
|
|
| Due after ten years, amount |
2,036
|
|
| Fair Value |
32,034
|
|
| Non-agency residential |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due in one year or less, yield |
0.00%
|
|
| Due after one year through five years, amount |
$ 0
|
|
| Due after one year through five years, yield |
0.00%
|
|
| Due after five years through ten years, amount |
$ 0
|
|
| Due after five years through ten years, yield |
0.00%
|
|
| Due after ten years, amount |
$ 546
|
|
| Due after ten years, yield |
11.80%
|
|
| Amount |
$ 546
|
|
| Total, yield |
11.80%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due after one year through five years, amount |
0
|
|
| Due after five years though ten years, amount |
0
|
|
| Due after ten years, amount |
528
|
|
| Fair Value |
528
|
|
| U.S. Treasury and government agencies |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 53,681
|
|
| Due in one year or less, yield |
4.40%
|
|
| Due after one year through five years, amount |
$ 201,148
|
|
| Due after one year through five years, yield |
3.66%
|
|
| Due after five years through ten years, amount |
$ 14,987
|
|
| Due after five years through ten years, yield |
3.13%
|
|
| Due after ten years, amount |
$ 34
|
|
| Due after ten years, yield |
3.98%
|
|
| Amount |
$ 269,850
|
|
| Total, yield |
3.78%
|
|
| Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due in one year or less, yield |
0.00%
|
|
| Due after one year through five years, amount |
$ 61,817
|
|
| Due after one year through five years, yield |
1.39%
|
|
| Due after five years through ten years, amount |
$ 59,415
|
|
| Due after five years though ten years, yield |
1.39%
|
|
| Due after ten years, amount |
$ 0
|
|
| Due after ten years, yield |
0.00%
|
|
| Amortized Cost |
$ 121,232
|
121,696
|
| Total, yield |
1.39%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 53,793
|
|
| Due after one year through five years, amount |
200,497
|
|
| Due after five years though ten years, amount |
14,755
|
|
| Due after ten years, amount |
32
|
|
| Fair Value |
269,077
|
|
| Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract] |
|
|
| Due in One Year or Less |
0
|
|
| Due after One Year through Five Years |
55,658
|
|
| Due after Five Years through Ten Years |
52,481
|
|
| Due after Ten Years |
0
|
|
| Held-to-maturity, fair value |
108,139
|
103,035
|
| Non-U.S. securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 24,607
|
|
| Due in one year or less, yield |
2.83%
|
|
| Due after one year through five years, amount |
$ 4,570
|
|
| Due after one year through five years, yield |
1.78%
|
|
| Due after five years through ten years, amount |
$ 5,428
|
|
| Due after five years through ten years, yield |
4.11%
|
|
| Due after ten years, amount |
$ 4,984
|
|
| Due after ten years, yield |
3.47%
|
|
| Amount |
$ 39,589
|
|
| Total, yield |
2.97%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 24,717
|
|
| Due after one year through five years, amount |
4,576
|
|
| Due after five years though ten years, amount |
5,431
|
|
| Due after ten years, amount |
4,985
|
|
| Fair Value |
39,709
|
|
| Other taxable securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 593
|
|
| Due in one year or less, yield |
5.44%
|
|
| Due after one year through five years, amount |
$ 1,808
|
|
| Due after one year through five years, yield |
4.92%
|
|
| Due after five years through ten years, amount |
$ 363
|
|
| Due after five years through ten years, yield |
3.78%
|
|
| Due after ten years, amount |
$ 329
|
|
| Due after ten years, yield |
4.40%
|
|
| Amount |
$ 3,093
|
|
| Total, yield |
4.83%
|
|
| Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] |
|
|
| Due in one year or less, amount |
$ 688
|
|
| Due in one year or less, yield |
1.85%
|
|
| Due after one year through five years, amount |
$ 384
|
|
| Due after one year through five years, yield |
3.04%
|
|
| Due after five years through ten years, amount |
$ 238
|
|
| Due after five years though ten years, yield |
2.53%
|
|
| Due after ten years, amount |
$ 5,053
|
|
| Due after ten years, yield |
2.53%
|
|
| Amortized Cost |
$ 6,363
|
6,882
|
| Total, yield |
2.49%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 593
|
|
| Due after one year through five years, amount |
1,809
|
|
| Due after five years though ten years, amount |
354
|
|
| Due after ten years, amount |
321
|
|
| Fair Value |
3,077
|
|
| Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract] |
|
|
| Due in One Year or Less |
681
|
|
| Due after One Year through Five Years |
375
|
|
| Due after Five Years through Ten Years |
194
|
|
| Due after Ten Years |
4,338
|
|
| Held-to-maturity, fair value |
5,588
|
$ 5,836
|
| Tax-exempt securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 648
|
|
| Due in one year or less, yield |
2.99%
|
|
| Due after one year through five years, amount |
$ 2,894
|
|
| Due after one year through five years, yield |
3.54%
|
|
| Due after five years through ten years, amount |
$ 868
|
|
| Due after five years through ten years, yield |
3.17%
|
|
| Due after ten years, amount |
$ 3,735
|
|
| Due after ten years, yield |
3.69%
|
|
| Amount |
$ 8,145
|
|
| Total, yield |
3.53%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 648
|
|
| Due after one year through five years, amount |
2,883
|
|
| Due after five years though ten years, amount |
870
|
|
| Due after ten years, amount |
3,588
|
|
| Fair Value |
$ 7,989
|
|