Securities - Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities (Details) - USD ($)
$ in Millions |
Mar. 31, 2020 |
Dec. 31, 2019 |
| Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 595
|
|
| Due in One Year or Less, Yield |
2.66%
|
|
| Due after One Year through Five Years, Amount |
$ 46
|
|
| Due after One Year through Five Years, Yield |
3.62%
|
|
| Due after Five Years through Ten Years, Amount |
$ 1,096
|
|
| Due after Five Years though Ten Years, Yield |
2.56%
|
|
| Due after Ten Years, Amount |
$ 253,027
|
|
| Due after Ten Years, Yield |
3.14%
|
|
| Amortized Cost |
$ 254,764
|
$ 215,730
|
| Total, Yield |
3.14%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Debt securities carried at fair value |
$ 221,104
|
256,467
|
| Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract] |
|
|
| Due in One Year or Less, Amount |
595
|
|
| Due after One Year through Five Years, Amount |
46
|
|
| Due after Five Years though Ten Years, Amount |
1,164
|
|
| Due after Ten Years, Amount |
264,790
|
|
| Debt Securities, Held-to-maturity, Fair Value |
266,595
|
$ 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 |
$ 22
|
|
| Due in One Year or Less, Yield |
1.68%
|
|
| Due after One Year through Five Years, Amount |
$ 4,965
|
|
| Due after One Year through Five Years, Yield |
2.45%
|
|
| Due after Five Years though Ten Years, Amount |
$ 8,924
|
|
| Due after Five Years though Ten Years, Yield |
2.57%
|
|
| Due after Ten Years, Amount |
$ 89,831
|
|
| Due after Ten Years, Yield |
3.53%
|
|
| Total, Amount |
$ 103,742
|
|
| Total, Yield |
3.40%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 22
|
|
| Due after One Year through Five Years, Amount |
5,163
|
|
| Due after Five Years though Ten Years, Amount |
9,470
|
|
| Due after Ten Years, Amount |
93,115
|
|
| Debt securities carried at fair value |
107,770
|
|
| 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 |
$ 9
|
|
| Due after One Year through Five Years, Yield |
5.42%
|
|
| Due after Five Years though Ten Years, Amount |
$ 65
|
|
| Due after Five Years though Ten Years, Yield |
4.47%
|
|
| Due after Ten Years, Amount |
$ 82,426
|
|
| Due after Ten Years, Yield |
3.42%
|
|
| Total, Amount |
$ 82,500
|
|
| Total, Yield |
3.42%
|
|
| 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 |
9
|
|
| Due after Five Years though Ten Years, Amount |
69
|
|
| Due after Ten Years, Amount |
85,472
|
|
| Debt securities carried at fair value |
85,550
|
|
| 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 though Ten Years, Amount |
$ 26
|
|
| Due after Five Years though Ten Years, Yield |
2.50%
|
|
| Due after Ten Years, Amount |
$ 4,322
|
|
| Due after Ten Years, Yield |
3.16%
|
|
| Total, Amount |
$ 4,348
|
|
| Total, Yield |
3.16%
|
|
| 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 |
26
|
|
| Due after Ten Years, Amount |
4,525
|
|
| Debt securities carried at fair value |
4,551
|
|
| Commercial |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 22
|
|
| Due in One Year or Less, Yield |
1.68%
|
|
| Due after One Year through Five Years, Amount |
$ 4,956
|
|
| Due after One Year through Five Years, Yield |
2.45%
|
|
| Due after Five Years though Ten Years, Amount |
$ 8,821
|
|
| Due after Five Years though Ten Years, Yield |
2.56%
|
|
| Due after Ten Years, Amount |
$ 1,014
|
|
| Due after Ten Years, Yield |
2.86%
|
|
| Total, Amount |
$ 14,813
|
|
| Total, Yield |
2.54%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 22
|
|
| Due after One Year through Five Years, Amount |
5,154
|
|
| Due after Five Years though Ten Years, Amount |
9,352
|
|
| Due after Ten Years, Amount |
1,087
|
|
| Debt securities carried at fair value |
15,615
|
|
| 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 though Ten Years, Amount |
$ 12
|
|
| Due after Five Years though Ten Years, Yield |
0.00%
|
|
| Due after Ten Years, Amount |
$ 2,069
|
|
| Due after Ten Years, Yield |
9.01%
|
|
| Total, Amount |
$ 2,081
|
|
| Total, Yield |
8.96%
|
|
| 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 |
23
|
|
| Due after Ten Years, Amount |
2,031
|
|
| Debt securities carried at fair value |
2,054
|
|
| 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 |
$ 6,401
|
|
| Due in One Year or Less, Yield |
1.25%
|
|
| Due after One Year through Five Years, Amount |
$ 30,295
|
|
| Due after One Year through Five Years, Yield |
1.73%
|
|
| Due after Five Years though Ten Years, Amount |
$ 27,622
|
|
| Due after Five Years though Ten Years, Yield |
2.21%
|
|
| Due after Ten Years, Amount |
$ 38
|
|
| Due after Ten Years, Yield |
2.45%
|
|
| Total, Amount |
$ 64,356
|
|
| Total, Yield |
1.89%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 6,464
|
|
| Due after One Year through Five Years, Amount |
31,645
|
|
| Due after Five Years though Ten Years, Amount |
30,551
|
|
| Due after Ten Years, Amount |
39
|
|
| Debt securities carried at fair value |
68,699
|
|
| Non-U.S. securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 18,332
|
|
| Due in One Year or Less, Yield |
0.87%
|
|
| Due after One Year through Five Years, Amount |
$ 1,478
|
|
| Due after One Year through Five Years, Yield |
1.47%
|
|
| Due after Five Years though Ten Years, Amount |
$ 11
|
|
| Due after Five Years though Ten Years, Yield |
2.97%
|
|
| Due after Ten Years, Amount |
$ 102
|
|
| Due after Ten Years, Yield |
7.02%
|
|
| Total, Amount |
$ 19,923
|
|
| Total, Yield |
0.95%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 18,307
|
|
| Due after One Year through Five Years, Amount |
1,481
|
|
| Due after Five Years though Ten Years, Amount |
11
|
|
| Due after Ten Years, Amount |
100
|
|
| Debt securities carried at fair value |
19,899
|
|
| 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 |
$ 1,474
|
|
| Due in One Year or Less, Yield |
2.13%
|
|
| Due after One Year through Five Years, Amount |
$ 2,011
|
|
| Due after One Year through Five Years, Yield |
2.66%
|
|
| Due after Five Years though Ten Years, Amount |
$ 1,237
|
|
| Due after Five Years though Ten Years, Yield |
3.31%
|
|
| Due after Ten Years, Amount |
$ 1,294
|
|
| Due after Ten Years, Yield |
3.22%
|
|
| Total, Amount |
$ 6,016
|
|
| Total, Yield |
2.78%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 1,460
|
|
| Due after One Year through Five Years, Amount |
1,880
|
|
| Due after Five Years though Ten Years, Amount |
1,234
|
|
| Due after Ten Years, Amount |
1,322
|
|
| Debt securities carried at fair value |
5,896
|
|
| Total taxable securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 26,229
|
|
| Due in One Year or Less, Yield |
1.04%
|
|
| Due after One Year through Five Years, Amount |
$ 38,749
|
|
| Due after One Year through Five Years, Yield |
1.86%
|
|
| Due after Five Years though Ten Years, Amount |
$ 37,794
|
|
| Due after Five Years though Ten Years, Yield |
2.33%
|
|
| Due after Ten Years, Amount |
$ 91,265
|
|
| Due after Ten Years, Yield |
3.53%
|
|
| Total, Amount |
$ 194,037
|
|
| Total, Yield |
2.63%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 26,253
|
|
| Due after One Year through Five Years, Amount |
40,169
|
|
| Due after Five Years though Ten Years, Amount |
41,266
|
|
| Due after Ten Years, Amount |
94,576
|
|
| Debt securities carried at fair value |
202,264
|
|
| Tax-exempt securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 2,612
|
|
| Due in One Year or Less, Yield |
1.82%
|
|
| Due after One Year through Five Years, Amount |
$ 7,882
|
|
| Due after One Year through Five Years, Yield |
3.28%
|
|
| Due after Five Years though Ten Years, Amount |
$ 5,035
|
|
| Due after Five Years though Ten Years, Yield |
2.18%
|
|
| Due after Ten Years, Amount |
$ 3,223
|
|
| Due after Ten Years, Yield |
4.00%
|
|
| Total, Amount |
$ 18,752
|
|
| Total, Yield |
2.90%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 2,610
|
|
| Due after One Year through Five Years, Amount |
7,875
|
|
| Due after Five Years though Ten Years, Amount |
5,100
|
|
| Due after Ten Years, Amount |
3,255
|
|
| Debt securities carried at fair value |
18,840
|
|
| Debt securities |
|
|
| Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 28,841
|
|
| Due in One Year or Less, Yield |
1.11%
|
|
| Due after One Year through Five Years, Amount |
$ 46,631
|
|
| Due after One Year through Five Years, Yield |
2.10%
|
|
| Due after Five Years though Ten Years, Amount |
$ 42,829
|
|
| Due after Five Years though Ten Years, Yield |
2.32%
|
|
| Due after Ten Years, Amount |
$ 94,488
|
|
| Due after Ten Years, Yield |
3.54%
|
|
| Total, Amount |
$ 212,789
|
|
| Total, Yield |
2.65%
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |
|
|
| Due in One Year or Less, Amount |
$ 28,863
|
|
| Due after One Year through Five Years, Amount |
48,044
|
|
| Due after Five Years though Ten Years, Amount |
46,366
|
|
| Due after Ten Years, Amount |
97,831
|
|
| Debt securities carried at fair value |
$ 221,104
|
|