INVESTMENT SECURITIES AND OTHER SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($)
$ in Millions |
Mar. 31, 2024 |
Dec. 31, 2023 |
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
$ 1,215
|
$ 1,375
|
| Less than 12 months, gross unrealized losses |
(20)
|
(28)
|
| 12 months or longer, fair value |
20,053
|
20,381
|
| 12 months or longer, gross unrealized losses |
(3,577)
|
(3,317)
|
| Total, fair value |
21,268
|
21,756
|
| Total, gross unrealized losses |
(3,597)
|
(3,345)
|
| Held-to-maturity securities: |
|
|
| Less than 12 months, fair value |
159
|
156
|
| Less than 12 months, gross unrealized losses |
(2)
|
(1)
|
| 12 months or longer, fair value |
12,646
|
13,030
|
| 12 months or longer, gross unrealized losses |
(2,244)
|
(2,038)
|
| Total held-to-maturity securities |
12,805
|
13,186
|
| Total, gross unrealized losses |
(2,246)
|
(2,039)
|
| Residential CMO |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
364
|
543
|
| Less than 12 months, gross unrealized losses |
(4)
|
(7)
|
| 12 months or longer, fair value |
2,711
|
2,641
|
| 12 months or longer, gross unrealized losses |
(440)
|
(401)
|
| Total, fair value |
3,075
|
3,184
|
| Total, gross unrealized losses |
(444)
|
(408)
|
| Held-to-maturity securities: |
|
|
| Less than 12 months, fair value |
159
|
156
|
| Less than 12 months, gross unrealized losses |
(2)
|
(1)
|
| 12 months or longer, fair value |
3,532
|
3,542
|
| 12 months or longer, gross unrealized losses |
(704)
|
(663)
|
| Total held-to-maturity securities |
3,691
|
3,698
|
| Total, gross unrealized losses |
(706)
|
(664)
|
| Residential MBS |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
238
|
207
|
| Less than 12 months, gross unrealized losses |
(2)
|
(2)
|
| 12 months or longer, fair value |
10,554
|
10,913
|
| 12 months or longer, gross unrealized losses |
(1,962)
|
(1,774)
|
| Total, fair value |
10,792
|
11,120
|
| Total, gross unrealized losses |
(1,964)
|
(1,776)
|
| Held-to-maturity securities: |
|
|
| Less than 12 months, fair value |
0
|
0
|
| Less than 12 months, gross unrealized losses |
0
|
0
|
| 12 months or longer, fair value |
7,778
|
8,108
|
| 12 months or longer, gross unrealized losses |
(1,301)
|
(1,145)
|
| Total held-to-maturity securities |
7,778
|
8,108
|
| Total, gross unrealized losses |
(1,301)
|
(1,145)
|
| Commercial MBS |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
0
|
0
|
| Less than 12 months, gross unrealized losses |
0
|
0
|
| 12 months or longer, fair value |
1,795
|
1,827
|
| 12 months or longer, gross unrealized losses |
(735)
|
(709)
|
| Total, fair value |
1,795
|
1,827
|
| Total, gross unrealized losses |
(735)
|
(709)
|
| Held-to-maturity securities: |
|
|
| Less than 12 months, fair value |
0
|
0
|
| Less than 12 months, gross unrealized losses |
0
|
0
|
| 12 months or longer, fair value |
1,250
|
1,285
|
| 12 months or longer, gross unrealized losses |
(232)
|
(224)
|
| Total held-to-maturity securities |
1,250
|
1,285
|
| Total, gross unrealized losses |
(232)
|
(224)
|
| Other agencies |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
0
|
0
|
| Less than 12 months, gross unrealized losses |
0
|
0
|
| 12 months or longer, fair value |
78
|
81
|
| 12 months or longer, gross unrealized losses |
(7)
|
(6)
|
| Total, fair value |
78
|
81
|
| Total, gross unrealized losses |
(7)
|
(6)
|
| Held-to-maturity securities: |
|
|
| Less than 12 months, fair value |
0
|
0
|
| Less than 12 months, gross unrealized losses |
0
|
0
|
| 12 months or longer, fair value |
86
|
95
|
| 12 months or longer, gross unrealized losses |
(7)
|
(6)
|
| Total held-to-maturity securities |
86
|
95
|
| Total, gross unrealized losses |
(7)
|
(6)
|
| Total U.S. Treasury, federal agency, and other agency securities |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
602
|
750
|
| Less than 12 months, gross unrealized losses |
(6)
|
(9)
|
| 12 months or longer, fair value |
15,138
|
15,462
|
| 12 months or longer, gross unrealized losses |
(3,144)
|
(2,890)
|
| Total, fair value |
15,740
|
16,212
|
| Total, gross unrealized losses |
(3,150)
|
(2,899)
|
| Held-to-maturity securities: |
|
|
| Less than 12 months, fair value |
159
|
156
|
| Less than 12 months, gross unrealized losses |
(2)
|
(1)
|
| 12 months or longer, fair value |
12,646
|
13,030
|
| 12 months or longer, gross unrealized losses |
(2,244)
|
(2,038)
|
| Total held-to-maturity securities |
12,805
|
13,186
|
| Total, gross unrealized losses |
(2,246)
|
(2,039)
|
| Municipal securities |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
613
|
625
|
| Less than 12 months, gross unrealized losses |
(14)
|
(19)
|
| 12 months or longer, fair value |
2,522
|
2,496
|
| 12 months or longer, gross unrealized losses |
(143)
|
(146)
|
| Total, fair value |
3,135
|
3,121
|
| Total, gross unrealized losses |
(157)
|
(165)
|
| Private-label CMO |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
0
|
0
|
| Less than 12 months, gross unrealized losses |
0
|
0
|
| 12 months or longer, fair value |
96
|
99
|
| 12 months or longer, gross unrealized losses |
(12)
|
(12)
|
| Total, fair value |
96
|
99
|
| Total, gross unrealized losses |
(12)
|
(12)
|
| Asset-backed securities |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
0
|
0
|
| Less than 12 months, gross unrealized losses |
0
|
0
|
| 12 months or longer, fair value |
279
|
281
|
| 12 months or longer, gross unrealized losses |
(28)
|
(31)
|
| Total, fair value |
279
|
281
|
| Total, gross unrealized losses |
(28)
|
(31)
|
| Corporate debt |
|
|
| Available-for-sale securities: |
|
|
| Less than 12 months, fair value |
0
|
0
|
| Less than 12 months, gross unrealized losses |
0
|
0
|
| 12 months or longer, fair value |
2,018
|
2,043
|
| 12 months or longer, gross unrealized losses |
(250)
|
(238)
|
| Total, fair value |
2,018
|
2,043
|
| Total, gross unrealized losses |
$ (250)
|
$ (238)
|