INVESTMENT SECURITIES AND OTHER SECURITIES - Schedule of Amortized Cost, Fair Value, and Gross Unrealized Gains and Losses (Details) - USD ($)
|
Jun. 30, 2021 |
Dec. 31, 2020 |
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
$ 22,802,000,000
|
$ 16,175,000,000
|
| Gross Gains |
250,000,000
|
344,000,000
|
| Gross Losses |
(137,000,000)
|
(34,000,000)
|
| Fair Value |
22,915,000,000
|
16,485,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
11,415,000,000
|
8,861,000,000
|
| Gross Gains |
238,000,000
|
394,000,000
|
| Gross Losses |
(12,000,000)
|
0
|
| Fair Value |
11,641,000,000
|
9,255,000,000
|
| Other securities, cost |
692,000,000
|
417,000,000
|
| Other securities, fair value |
692,000,000
|
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 |
48,000,000
|
32,000,000
|
| Held-to-maturity Securities [Member] |
|
|
| Held-to-maturity securities: |
|
|
| Financing Receivable, Accrued Interest, before Allowance for Credit Loss |
25,000,000
|
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 |
2,576,000,000
|
3,550,000,000
|
| Gross Gains |
81,000,000
|
121,000,000
|
| Gross Losses |
(8,000,000)
|
(5,000,000)
|
| Fair Value |
2,649,000,000
|
3,666,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
2,228,000,000
|
1,779,000,000
|
| Gross Gains |
65,000,000
|
88,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
2,293,000,000
|
1,867,000,000
|
| Residential MBS |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
13,219,000,000
|
7,843,000,000
|
| Gross Gains |
52,000,000
|
97,000,000
|
| Gross Losses |
(74,000,000)
|
(5,000,000)
|
| Fair Value |
13,197,000,000
|
7,935,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
6,259,000,000
|
3,715,000,000
|
| Gross Gains |
61,000,000
|
103,000,000
|
| Gross Losses |
(12,000,000)
|
0
|
| Fair Value |
6,308,000,000
|
3,818,000,000
|
| Commercial MBS |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
1,377,000,000
|
1,151,000,000
|
| Gross Gains |
15,000,000
|
21,000,000
|
| Gross Losses |
(24,000,000)
|
(9,000,000)
|
| Fair Value |
1,368,000,000
|
1,163,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
2,705,000,000
|
3,118,000,000
|
| Gross Gains |
102,000,000
|
191,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
2,807,000,000
|
3,309,000,000
|
| Other agencies |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
283,000,000
|
60,000,000
|
| Gross Gains |
1,000,000
|
2,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
284,000,000
|
62,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
220,000,000
|
246,000,000
|
| Gross Gains |
10,000,000
|
12,000,000
|
| Gross Losses |
0
|
0
|
| Fair Value |
230,000,000
|
258,000,000
|
| Total U.S. Treasury, federal agency and other agency securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
17,460,000,000
|
12,609,000,000
|
| Gross Gains |
149,000,000
|
241,000,000
|
| Gross Losses |
(106,000,000)
|
(19,000,000)
|
| Fair Value |
17,503,000,000
|
12,831,000,000
|
| Held-to-maturity securities: |
|
|
| Total held-to-maturity securities |
11,412,000,000
|
8,858,000,000
|
| Gross Gains |
238,000,000
|
394,000,000
|
| Gross Losses |
(12,000,000)
|
0
|
| Fair Value |
11,638,000,000
|
9,252,000,000
|
| Municipal securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
3,589,000,000
|
2,928,000,000
|
| Gross Gains |
89,000,000
|
91,000,000
|
| Gross Losses |
(17,000,000)
|
(15,000,000)
|
| Fair Value |
3,661,000,000
|
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 |
142,000,000
|
9,000,000
|
| Gross Gains |
0
|
0
|
| Gross Losses |
0
|
0
|
| Fair Value |
142,000,000
|
9,000,000
|
| Asset-backed securities |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
298,000,000
|
185,000,000
|
| Gross Gains |
4,000,000
|
7,000,000
|
| Gross Losses |
(1,000,000)
|
0
|
| Fair Value |
301,000,000
|
192,000,000
|
| Corporate debt |
|
|
| Available-for-sale securities: |
|
|
| Total available-for-sale securities |
1,309,000,000
|
440,000,000
|
| Gross Gains |
8,000,000
|
5,000,000
|
| Gross Losses |
(13,000,000)
|
0
|
| Fair Value |
1,304,000,000
|
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 |
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 |
201,000,000
|
60,000,000
|
| Other securities, fair value |
201,000,000
|
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 |
425,000,000
|
299,000,000
|
| Other securities, fair value |
425,000,000
|
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
|