INVESTMENT SECURITIES AND OTHER SECURITIES - Schedule of Amortized Cost, Fair Value, and Gross Unrealized Gains and Losses (Details) - USD ($)
|
Mar. 31, 2021 |
Dec. 31, 2020 |
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
$ 19,351,000,000
|
$ 16,175,000,000
|
| Gross Gains |
271,000,000
|
344,000,000
|
| Gross Losses |
(247,000,000)
|
(34,000,000)
|
| Fair Value |
19,375,000,000
|
16,485,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
7,815,000,000
|
8,861,000,000
|
| Gross Gains |
265,000,000
|
394,000,000
|
| Gross Losses |
(18,000,000)
|
0
|
| Fair Value |
8,062,000,000
|
9,255,000,000
|
| Other securities, cost |
410,000,000
|
417,000,000
|
| Other securities, fair value |
411,000,000
|
418,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax |
1,000,000
|
1,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Loss, before Tax |
0
|
0
|
| Available-for-sale Securities [Member] |
|
|
| Held-to-maturity securities: |
|
|
| Financing Receivable, Accrued Interest, before Allowance for Credit Loss |
40,000,000
|
32,000,000
|
| Held-to-maturity Securities [Member] |
|
|
| Held-to-maturity securities: |
|
|
| Financing Receivable, Accrued Interest, before Allowance for Credit Loss |
18,000,000
|
20,000,000
|
| U.S. Treasury |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
5,000,000
|
5,000,000
|
| Gross Gains |
0
|
0
|
| Gross Losses |
0
|
0
|
| Fair Value |
5,000,000
|
5,000,000
|
| Residential CMO |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
3,081,000,000
|
3,550,000,000
|
| Gross Gains |
100,000,000
|
121,000,000
|
| Gross Losses |
(9,000,000)
|
(5,000,000)
|
| Fair Value |
3,172,000,000
|
3,666,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
1,604,000,000
|
1,779,000,000
|
| Gross Gains |
74,000,000
|
88,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
1,678,000,000
|
1,867,000,000
|
| Residential MBS |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
10,708,000,000
|
7,843,000,000
|
| Gross Gains |
61,000,000
|
97,000,000
|
| Gross Losses |
(124,000,000)
|
(5,000,000)
|
| Fair Value |
10,645,000,000
|
7,935,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
3,259,000,000
|
3,715,000,000
|
| Gross Gains |
69,000,000
|
103,000,000
|
| Gross Losses |
(18,000,000)
|
0
|
| Fair Value |
3,310,000,000
|
3,818,000,000
|
| Commercial MBS |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
1,277,000,000
|
1,151,000,000
|
| Gross Gains |
13,000,000
|
21,000,000
|
| Gross Losses |
(63,000,000)
|
(9,000,000)
|
| Fair Value |
1,227,000,000
|
1,163,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
2,719,000,000
|
3,118,000,000
|
| Gross Gains |
114,000,000
|
191,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
2,833,000,000
|
3,309,000,000
|
| Other agencies |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
44,000,000
|
60,000,000
|
| Gross Gains |
2,000,000
|
2,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
46,000,000
|
62,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
230,000,000
|
246,000,000
|
| Gross Gains |
8,000,000
|
12,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
238,000,000
|
258,000,000
|
| Total U.S. Treasury, federal agency and other agency securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
15,115,000,000
|
12,609,000,000
|
| Gross Gains |
176,000,000
|
241,000,000
|
| Gross Losses |
(196,000,000)
|
(19,000,000)
|
| Fair Value |
15,095,000,000
|
12,831,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
7,812,000,000
|
8,858,000,000
|
| Gross Gains |
265,000,000
|
394,000,000
|
| Gross Losses |
(18,000,000)
|
0
|
| Fair Value |
8,059,000,000
|
9,252,000,000
|
| Municipal securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
3,050,000,000
|
2,928,000,000
|
| Gross Gains |
91,000,000
|
91,000,000
|
| Gross Losses |
(19,000,000)
|
(15,000,000)
|
| Fair Value |
3,122,000,000
|
3,004,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
3,000,000
|
3,000,000
|
| Gross Gains |
0
|
0
|
| Gross Losses |
0
|
0
|
| Fair Value |
3,000,000
|
3,000,000
|
| Private-label CMO |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
50,000,000
|
9,000,000
|
| Gross Gains |
0
|
0
|
| Gross Losses |
0
|
0
|
| Fair Value |
50,000,000
|
9,000,000
|
| Asset-backed securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
244,000,000
|
185,000,000
|
| Gross Gains |
4,000,000
|
7,000,000
|
| Gross Losses |
(1,000,000)
|
0
|
| Fair Value |
247,000,000
|
192,000,000
|
| Corporate debt |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
888,000,000
|
440,000,000
|
| Gross Gains |
0
|
5,000,000
|
| Gross Losses |
(31,000,000)
|
0
|
| Fair Value |
857,000,000
|
445,000,000
|
| Other securities/Sovereign debt |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
4,000,000
|
4,000,000
|
| Gross Gains |
0
|
0
|
| Gross Losses |
0
|
0
|
| Fair Value |
4,000,000
|
4,000,000
|
| Mutual funds |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, cost |
42,000,000
|
50,000,000
|
| Other securities, fair value |
42,000,000
|
50,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax |
0
|
0
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Loss, before Tax |
0
|
0
|
| Equity securities |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, cost |
16,000,000
|
8,000,000
|
| Other securities, fair value |
17,000,000
|
9,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax |
1,000,000
|
1,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Loss, before Tax |
0
|
0
|
| Federal Home Loan Bank stock | Non-marketable equity securities: |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, cost |
52,000,000
|
60,000,000
|
| Other securities, fair value |
52,000,000
|
60,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax |
0
|
0
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Loss, before Tax |
0
|
0
|
| Federal Reserve Bank stock | Non-marketable equity securities: |
|
|
| Held-to-maturity securities: |
|
|
| Other securities, cost |
300,000,000
|
299,000,000
|
| Other securities, fair value |
300,000,000
|
299,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax |
0
|
0
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Loss, before Tax |
$ 0
|
$ 0
|