INVESTMENT SECURITIES AND OTHER SECURITIES - Schedule of Amortized Cost, Fair Value, and Gross Unrealized Gains and Losses (Details) - USD ($)
|
Sep. 30, 2021 |
Dec. 31, 2020 |
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
$ 25,653,000,000
|
$ 16,175,000,000
|
| Gross Gains |
212,000,000
|
344,000,000
|
| Gross Losses |
(211,000,000)
|
(34,000,000)
|
| Fair Value |
25,654,000,000
|
16,485,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
12,455,000,000
|
8,861,000,000
|
| Gross Gains |
202,000,000
|
394,000,000
|
| Gross Losses |
(38,000,000)
|
0
|
| Fair Value |
12,619,000,000
|
9,255,000,000
|
| Other securities, cost |
649,000,000
|
417,000,000
|
| Other securities, fair value |
649,000,000
|
418,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax |
0
|
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 |
60,000,000
|
32,000,000
|
| Held-to-maturity Securities [Member] |
|
|
| Held-to-maturity securities: |
|
|
| Financing Receivable, Accrued Interest, before Allowance for Credit Loss |
26,000,000
|
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 |
3,683,000,000
|
3,550,000,000
|
| Gross Gains |
63,000,000
|
121,000,000
|
| Gross Losses |
(12,000,000)
|
(5,000,000)
|
| Fair Value |
3,734,000,000
|
3,666,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
2,701,000,000
|
1,779,000,000
|
| Gross Gains |
56,000,000
|
88,000,000
|
| Gross Losses |
(4,000,000)
|
0
|
| Fair Value |
2,753,000,000
|
1,867,000,000
|
| Residential MBS |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
14,413,000,000
|
7,843,000,000
|
| Gross Gains |
47,000,000
|
97,000,000
|
| Gross Losses |
(123,000,000)
|
(5,000,000)
|
| Fair Value |
14,337,000,000
|
7,935,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
7,079,000,000
|
3,715,000,000
|
| Gross Gains |
62,000,000
|
103,000,000
|
| Gross Losses |
(33,000,000)
|
0
|
| Fair Value |
7,108,000,000
|
3,818,000,000
|
| Commercial MBS |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
1,522,000,000
|
1,151,000,000
|
| Gross Gains |
11,000,000
|
21,000,000
|
| Gross Losses |
(35,000,000)
|
(9,000,000)
|
| Fair Value |
1,498,000,000
|
1,163,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
2,468,000,000
|
3,118,000,000
|
| Gross Gains |
77,000,000
|
191,000,000
|
| Gross Losses |
(1,000,000)
|
0
|
| Fair Value |
2,544,000,000
|
3,309,000,000
|
| Other agencies |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
263,000,000
|
60,000,000
|
| Gross Gains |
1,000,000
|
2,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
264,000,000
|
62,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
205,000,000
|
246,000,000
|
| Gross Gains |
7,000,000
|
12,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
212,000,000
|
258,000,000
|
| Total U.S. Treasury, federal agency and other agency securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
19,886,000,000
|
12,609,000,000
|
| Gross Gains |
122,000,000
|
241,000,000
|
| Gross Losses |
(170,000,000)
|
(19,000,000)
|
| Fair Value |
19,838,000,000
|
12,831,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
12,453,000,000
|
8,858,000,000
|
| Gross Gains |
202,000,000
|
394,000,000
|
| Gross Losses |
(38,000,000)
|
0
|
| Fair Value |
12,617,000,000
|
9,252,000,000
|
| Municipal securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
3,570,000,000
|
2,928,000,000
|
| Gross Gains |
82,000,000
|
91,000,000
|
| Gross Losses |
(18,000,000)
|
(15,000,000)
|
| Fair Value |
3,634,000,000
|
3,004,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
2,000,000
|
3,000,000
|
| Gross Gains |
0
|
0
|
| Gross Losses |
0
|
0
|
| Fair Value |
2,000,000
|
3,000,000
|
| Private-label CMO |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
120,000,000
|
9,000,000
|
| Gross Gains |
0
|
0
|
| Gross Losses |
0
|
0
|
| Fair Value |
120,000,000
|
9,000,000
|
| Asset-backed securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
284,000,000
|
185,000,000
|
| Gross Gains |
3,000,000
|
7,000,000
|
| Gross Losses |
(2,000,000)
|
0
|
| Fair Value |
285,000,000
|
192,000,000
|
| Corporate debt |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
1,789,000,000
|
440,000,000
|
| Gross Gains |
5,000,000
|
5,000,000
|
| Gross Losses |
(21,000,000)
|
0
|
| Fair Value |
1,773,000,000
|
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 |
62,000,000
|
50,000,000
|
| Other securities, fair value |
62,000,000
|
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 |
24,000,000
|
8,000,000
|
| Other securities, fair value |
24,000,000
|
9,000,000
|
| Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax |
0
|
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 |
511,000,000
|
299,000,000
|
| Other securities, fair value |
511,000,000
|
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
|