INVESTMENT SECURITIES AND OTHER SECURITIES - Schedule of Amortized Cost, Fair Value, and Gross Unrealized Gains and Losses (Details) - USD ($)
|
Mar. 31, 2022 |
Dec. 31, 2021 |
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
$ 26,232,000,000
|
$ 28,506,000,000
|
| Available-for-sale securities, Gross Gains |
562,000,000
|
269,000,000
|
| Available-for-sale securities, Gross Losses |
(1,642,000,000)
|
(315,000,000)
|
| Available-for-sale securities |
25,152,000,000
|
28,460,000,000
|
| Held-to-maturity securities: |
|
|
| Held-to-maturity securities |
17,190,000,000
|
12,447,000,000
|
| Held-to-maturity securities, Gross Gains |
5,000,000
|
126,000,000
|
| Held-to-maturity securities, Gross Losses |
(782,000,000)
|
(84,000,000)
|
| Held-to-maturity securities, Fair Value |
16,413,000,000
|
12,489,000,000
|
| Other securities, Amortized Cost |
1,056,000,000
|
647,000,000
|
| Other securities, Gross Gains |
0
|
1,000,000
|
| Other securities, Gross Losses |
0
|
0
|
| Other securities, Fair Value |
1,056,000,000
|
648,000,000
|
| Available-for-sale Securities |
|
|
| Held-to-maturity securities: |
|
|
| Accrued interest receivable |
67,000,000
|
62,000,000
|
| Held-to-maturity Securities |
|
|
| Held-to-maturity securities: |
|
|
| Accrued interest receivable |
37,000,000
|
26,000,000
|
| U.S. Treasury |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
5,000,000
|
5,000,000
|
| Available-for-sale securities, Gross Gains |
0
|
0
|
| Available-for-sale securities, Gross Losses |
0
|
0
|
| Available-for-sale securities |
5,000,000
|
5,000,000
|
| Residential CMO |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
2,994,000,000
|
4,649,000,000
|
| Available-for-sale securities, Gross Gains |
49,000,000
|
40,000,000
|
| Available-for-sale securities, Gross Losses |
(127,000,000)
|
(40,000,000)
|
| Available-for-sale securities |
2,916,000,000
|
4,649,000,000
|
| Held-to-maturity securities: |
|
|
| Held-to-maturity securities |
5,081,000,000
|
2,602,000,000
|
| Held-to-maturity securities, Gross Gains |
0
|
35,000,000
|
| Held-to-maturity securities, Gross Losses |
(221,000,000)
|
(20,000,000)
|
| Held-to-maturity securities, Fair Value |
4,860,000,000
|
2,617,000,000
|
| Residential MBS |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
14,427,000,000
|
15,533,000,000
|
| Available-for-sale securities, Gross Gains |
435,000,000
|
135,000,000
|
| Available-for-sale securities, Gross Losses |
(961,000,000)
|
(160,000,000)
|
| Available-for-sale securities |
13,901,000,000
|
15,508,000,000
|
| Held-to-maturity securities: |
|
|
| Held-to-maturity securities |
10,009,000,000
|
7,475,000,000
|
| Held-to-maturity securities, Gross Gains |
4,000,000
|
41,000,000
|
| Held-to-maturity securities, Gross Losses |
(495,000,000)
|
(59,000,000)
|
| Held-to-maturity securities, Fair Value |
9,518,000,000
|
7,457,000,000
|
| Commercial MBS |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
2,073,000,000
|
1,896,000,000
|
| Available-for-sale securities, Gross Gains |
0
|
7,000,000
|
| Available-for-sale securities, Gross Losses |
(223,000,000)
|
(38,000,000)
|
| Available-for-sale securities |
1,850,000,000
|
1,865,000,000
|
| Held-to-maturity securities: |
|
|
| Held-to-maturity securities |
1,922,000,000
|
2,175,000,000
|
| Held-to-maturity securities, Gross Gains |
1,000,000
|
45,000,000
|
| Held-to-maturity securities, Gross Losses |
(62,000,000)
|
(5,000,000)
|
| Held-to-maturity securities, Fair Value |
1,861,000,000
|
2,215,000,000
|
| Other agencies |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
229,000,000
|
248,000,000
|
| Available-for-sale securities, Gross Gains |
1,000,000
|
1,000,000
|
| Available-for-sale securities, Gross Losses |
(5,000,000)
|
(1,000,000)
|
| Available-for-sale securities |
225,000,000
|
248,000,000
|
| Held-to-maturity securities: |
|
|
| Held-to-maturity securities |
176,000,000
|
193,000,000
|
| Held-to-maturity securities, Gross Gains |
0
|
5,000,000
|
| Held-to-maturity securities, Gross Losses |
(4,000,000)
|
0
|
| Held-to-maturity securities, Fair Value |
172,000,000
|
198,000,000
|
| Total U.S. Treasury, federal agency and other agency securities |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
19,728,000,000
|
22,331,000,000
|
| Available-for-sale securities, Gross Gains |
485,000,000
|
183,000,000
|
| Available-for-sale securities, Gross Losses |
(1,316,000,000)
|
(239,000,000)
|
| Available-for-sale securities |
18,897,000,000
|
22,275,000,000
|
| Held-to-maturity securities: |
|
|
| Held-to-maturity securities |
17,188,000,000
|
12,445,000,000
|
| Held-to-maturity securities, Gross Gains |
5,000,000
|
126,000,000
|
| Held-to-maturity securities, Gross Losses |
(782,000,000)
|
(84,000,000)
|
| Held-to-maturity securities, Fair Value |
16,411,000,000
|
12,487,000,000
|
| Municipal securities |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
3,422,000,000
|
3,497,000,000
|
| Available-for-sale securities, Gross Gains |
7,000,000
|
62,000,000
|
| Available-for-sale securities, Gross Losses |
(100,000,000)
|
(33,000,000)
|
| Available-for-sale securities |
3,329,000,000
|
3,526,000,000
|
| Held-to-maturity securities: |
|
|
| Held-to-maturity securities |
2,000,000
|
2,000,000
|
| Held-to-maturity securities, Gross Gains |
0
|
0
|
| Held-to-maturity securities, Gross Losses |
0
|
0
|
| Held-to-maturity securities, Fair Value |
2,000,000
|
2,000,000
|
| Private-label CMO |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
148,000,000
|
106,000,000
|
| Available-for-sale securities, Gross Gains |
0
|
1,000,000
|
| Available-for-sale securities, Gross Losses |
(3,000,000)
|
(1,000,000)
|
| Available-for-sale securities |
145,000,000
|
106,000,000
|
| Asset-backed securities |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
415,000,000
|
385,000,000
|
| Available-for-sale securities, Gross Gains |
0
|
1,000,000
|
| Available-for-sale securities, Gross Losses |
(19,000,000)
|
(4,000,000)
|
| Available-for-sale securities |
396,000,000
|
382,000,000
|
| Corporate debt |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
2,515,000,000
|
2,183,000,000
|
| Available-for-sale securities, Gross Gains |
70,000,000
|
22,000,000
|
| Available-for-sale securities, Gross Losses |
(204,000,000)
|
(38,000,000)
|
| Available-for-sale securities |
2,381,000,000
|
2,167,000,000
|
| Other securities/Sovereign debt |
|
|
| Available-for-sale securities: |
|
|
| Available-for-sale securities, Amortized cost |
4,000,000
|
4,000,000
|
| Available-for-sale securities, Gross Gains |
0
|
0
|
| Available-for-sale securities, Gross Losses |
0
|
0
|
| Available-for-sale securities |
4,000,000
|
4,000,000
|
| Equity securities |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, Amortized Cost |
12,000,000
|
12,000,000
|
| Other securities, Gross Gains |
0
|
0
|
| Other securities, Gross Losses |
0
|
0
|
| Other securities, Fair Value |
12,000,000
|
12,000,000
|
| Mutual funds |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, Amortized Cost |
60,000,000
|
65,000,000
|
| Other securities, Gross Gains |
0
|
0
|
| Other securities, Gross Losses |
0
|
0
|
| Other securities, Fair Value |
60,000,000
|
65,000,000
|
| Equity securities |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, Amortized Cost |
6,000,000
|
6,000,000
|
| Other securities, Gross Gains |
0
|
1,000,000
|
| Other securities, Gross Losses |
0
|
0
|
| Other securities, Fair Value |
6,000,000
|
7,000,000
|
| Federal Home Loan Bank stock | Non-marketable equity securities: |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, Amortized Cost |
465,000,000
|
52,000,000
|
| Other securities, Gross Gains |
0
|
0
|
| Other securities, Gross Losses |
0
|
0
|
| Other securities, Fair Value |
465,000,000
|
52,000,000
|
| Federal Reserve Bank stock | Non-marketable equity securities: |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, Amortized Cost |
513,000,000
|
512,000,000
|
| Other securities, Gross Gains |
0
|
0
|
| Other securities, Gross Losses |
0
|
0
|
| Other securities, Fair Value |
$ 513,000,000
|
$ 512,000,000
|