Securities - Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities (Details) - USD ($)
$ in Millions |
Dec. 31, 2020 |
Dec. 31, 2019 |
| Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] |
|
|
| Due in one year or less, amount |
$ 15
|
|
| Due in one year or less, yield |
3.78%
|
|
| Due after one year through five years, amount |
$ 66
|
|
| Due after one year through five years, yield |
2.73%
|
|
| Due after five years through ten years, amount |
$ 17,133
|
|
| Due after five years though ten years, yield |
1.86%
|
|
| Due after ten years, amount |
$ 421,065
|
|
| Due after ten years, yield |
2.40%
|
|
| Amortized cost |
$ 438,279
|
$ 215,730
|
| Total, yield |
2.38%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Fair Value |
$ 246,601
|
256,467
|
| Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract] |
|
|
| Due in one year or less, amount |
14
|
|
| Due after one year through five years, amount |
69
|
|
| Due after five years though ten years, amount |
17,139
|
|
| Due after ten years, amount |
430,958
|
|
| Held-to-maturity, fair value |
448,180
|
$ 219,821
|
| Mortgage-backed securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 26
|
|
| Due in one year or less, yield |
3.04%
|
|
| Due after one year through five years, amount |
$ 6,676
|
|
| Due after one year through five years, yield |
2.52%
|
|
| Due after five years through ten years, amount |
$ 7,792
|
|
| Due after five years through ten years, yield |
2.34%
|
|
| Due after ten years, amount |
$ 67,240
|
|
| Due after ten years, yield |
3.40%
|
|
| Total, amount |
$ 81,734
|
|
| Total, yield |
3.23%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 26
|
|
| Due after one year through five years, amount |
7,084
|
|
| Due after five years though ten years, amount |
8,334
|
|
| Due after ten years, amount |
69,953
|
|
| Fair Value |
85,397
|
|
| Agency |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due in one year or less, yield |
0.00%
|
|
| Due after one year through five years, amount |
$ 7
|
|
| Due after one year through five years, yield |
5.69%
|
|
| Due after five years through ten years, amount |
$ 56
|
|
| Due after five years through ten years, yield |
4.44%
|
|
| Due after ten years, amount |
$ 59,455
|
|
| Due after ten years, yield |
3.36%
|
|
| Total, amount |
$ 59,518
|
|
| Total, yield |
3.36%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due after one year through five years, amount |
7
|
|
| Due after five years though ten years, amount |
61
|
|
| Due after ten years, amount |
61,781
|
|
| Fair Value |
61,849
|
|
| Agency-collateralized mortgage obligations |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due in one year or less, yield |
0.00%
|
|
| Due after one year through five years, amount |
$ 0
|
|
| Due after one year through five years, yield |
0.00%
|
|
| Due after five years through ten years, amount |
$ 24
|
|
| Due after five years through ten years, yield |
2.57%
|
|
| Due after ten years, amount |
$ 5,088
|
|
| Due after ten years, yield |
2.94%
|
|
| Total, amount |
$ 5,112
|
|
| Total, yield |
2.94%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due after one year through five years, amount |
0
|
|
| Due after five years though ten years, amount |
24
|
|
| Due after ten years, amount |
5,236
|
|
| Fair Value |
5,260
|
|
| Commercial |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 26
|
|
| Due in one year or less, yield |
3.04%
|
|
| Due after one year through five years, amount |
$ 6,669
|
|
| Due after one year through five years, yield |
2.52%
|
|
| Due after five years through ten years, amount |
$ 7,711
|
|
| Due after five years through ten years, yield |
2.32%
|
|
| Due after ten years, amount |
$ 1,077
|
|
| Due after ten years, yield |
2.64%
|
|
| Total, amount |
$ 15,483
|
|
| Total, yield |
2.43%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 26
|
|
| Due after one year through five years, amount |
7,077
|
|
| Due after five years though ten years, amount |
8,242
|
|
| Due after ten years, amount |
1,160
|
|
| Fair Value |
16,505
|
|
| Non-agency residential |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due in one year or less, yield |
0.00%
|
|
| Due after one year through five years, amount |
$ 0
|
|
| Due after one year through five years, yield |
0.00%
|
|
| Due after five years through ten years, amount |
$ 1
|
|
| Due after five years through ten years, yield |
0.00%
|
|
| Due after ten years, amount |
$ 1,620
|
|
| Due after ten years, yield |
6.77%
|
|
| Total, amount |
$ 1,621
|
|
| Total, yield |
6.77%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 0
|
|
| Due after one year through five years, amount |
0
|
|
| Due after five years though ten years, amount |
7
|
|
| Due after ten years, amount |
1,776
|
|
| Fair Value |
1,783
|
|
| U.S. Treasury and agency securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 10,020
|
|
| Due in one year or less, yield |
1.26%
|
|
| Due after one year through five years, amount |
$ 29,533
|
|
| Due after one year through five years, yield |
1.85%
|
|
| Due after five years through ten years, amount |
$ 74,665
|
|
| Due after five years through ten years, yield |
0.74%
|
|
| Due after ten years, amount |
$ 32
|
|
| Due after ten years, yield |
2.55%
|
|
| Total, amount |
$ 114,250
|
|
| Total, yield |
1.07%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 10,056
|
|
| Due after one year through five years, amount |
30,873
|
|
| Due after five years though ten years, amount |
75,511
|
|
| Due after ten years, amount |
33
|
|
| Fair Value |
116,473
|
|
| Non-U.S. securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 22,862
|
|
| Due in one year or less, yield |
0.31%
|
|
| Due after one year through five years, amount |
$ 926
|
|
| Due after one year through five years, yield |
1.81%
|
|
| Due after five years through ten years, amount |
$ 581
|
|
| Due after five years through ten years, yield |
1.09%
|
|
| Due after ten years, amount |
$ 532
|
|
| Due after ten years, yield |
1.79%
|
|
| Total, amount |
$ 24,901
|
|
| Total, yield |
0.42%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 23,187
|
|
| Due after one year through five years, amount |
940
|
|
| Due after five years though ten years, amount |
582
|
|
| Due after ten years, amount |
534
|
|
| Fair Value |
25,243
|
|
| Other taxable securities, substantially all asset-backed securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 699
|
|
| Due in one year or less, yield |
1.15%
|
|
| Due after one year through five years, amount |
$ 1,336
|
|
| Due after one year through five years, yield |
2.46%
|
|
| Due after five years through ten years, amount |
$ 366
|
|
| Due after five years through ten years, yield |
2.26%
|
|
| Due after ten years, amount |
$ 255
|
|
| Due after ten years, yield |
1.60%
|
|
| Total, amount |
$ 2,656
|
|
| Total, yield |
2.00%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 702
|
|
| Due after one year through five years, amount |
1,369
|
|
| Due after five years though ten years, amount |
379
|
|
| Due after ten years, amount |
264
|
|
| Fair Value |
2,714
|
|
| Total taxable securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 33,607
|
|
| Due in one year or less, yield |
0.61%
|
|
| Due after one year through five years, amount |
$ 38,471
|
|
| Due after one year through five years, yield |
1.99%
|
|
| Due after five years through ten years, amount |
$ 83,404
|
|
| Due after five years through ten years, yield |
0.89%
|
|
| Due after ten years, amount |
$ 68,059
|
|
| Due after ten years, yield |
3.38%
|
|
| Total, amount |
$ 223,541
|
|
| Total, yield |
1.80%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 33,971
|
|
| Due after one year through five years, amount |
40,266
|
|
| Due after five years though ten years, amount |
84,806
|
|
| Due after ten years, amount |
70,784
|
|
| Fair Value |
229,827
|
|
| Tax-exempt securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 872
|
|
| Due in one year or less, yield |
0.87%
|
|
| Due after one year through five years, amount |
$ 8,430
|
|
| Due after one year through five years, yield |
1.27%
|
|
| Due after five years through ten years, amount |
$ 4,397
|
|
| Due after five years through ten years, yield |
1.66%
|
|
| Due after ten years, amount |
$ 2,718
|
|
| Due after ten years, yield |
1.41%
|
|
| Total, amount |
$ 16,417
|
|
| Total, yield |
1.38%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 874
|
|
| Due after one year through five years, amount |
8,554
|
|
| Due after five years though ten years, amount |
4,566
|
|
| Due after ten years, amount |
2,780
|
|
| Fair Value |
16,774
|
|
| Debt securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 34,479
|
|
| Due in one year or less, yield |
0.62%
|
|
| Due after one year through five years, amount |
$ 46,901
|
|
| Due after one year through five years, yield |
1.86%
|
|
| Due after five years through ten years, amount |
$ 87,801
|
|
| Due after five years through ten years, yield |
0.93%
|
|
| Due after ten years, amount |
$ 70,777
|
|
| Due after ten years, yield |
3.30%
|
|
| Total, amount |
$ 239,958
|
|
| Total, yield |
1.77%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in one year or less, amount |
$ 34,845
|
|
| Due after one year through five years, amount |
48,820
|
|
| Due after five years though ten years, amount |
89,372
|
|
| Due after ten years, amount |
73,564
|
|
| Fair Value |
$ 246,601
|
|