Quarterly report pursuant to Section 13 or 15(d)

Securities - Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities (Details)

v3.22.1
Securities - Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Due in one year or less, amount $ 43  
Due in one year or less, yield 7.20%  
Due after one year through five years, amount $ 4,941  
Due after one year through five years, yield 1.76%  
Due after five years through ten years, amount $ 117,466  
Due after five years though ten years, yield 1.37%  
Due after ten years, amount $ 549,768  
Due after ten years, yield 2.13%  
Amortized cost $ 672,218 $ 674,591
Total, yield 1.99%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Fair Value $ 297,700 308,073
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]    
Due in one year or less, amount 43  
Due after one year through five years, amount 4,773  
Due after five years though ten years, amount 107,554  
Due after ten years, amount 508,506  
Held-to-maturity, fair value 620,876 665,890
Mortgage-backed securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 805  
Due in one year or less, yield 2.42%  
Due after one year through five years, amount $ 8,885  
Due after one year through five years, yield 2.51%  
Due after five years through ten years, amount $ 7,298  
Due after five years through ten years, yield 1.82%  
Due after ten years, amount $ 46,443  
Due after ten years, yield 3.11%  
Total, amount $ 63,431  
Total, yield 2.87%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 809  
Due after one year through five years, amount 9,087  
Due after five years though ten years, amount 7,129  
Due after ten years, amount 45,507  
Fair Value 62,532  
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 $ 5  
Due after one year through five years, yield 4.80%  
Due after five years through ten years, amount $ 46  
Due after five years through ten years, yield 4.67%  
Due after ten years, amount $ 40,115  
Due after ten years, yield 3.12%  
Total, amount $ 40,166  
Total, yield 3.12%  
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [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 $ 4  
Due after five years though ten years, yield 1.75%  
Due after ten years, amount $ 542,597  
Due after ten years, yield 2.13%  
Amortized cost $ 542,601 553,721
Total, yield 2.13%  
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 5  
Due after five years though ten years, amount 48  
Due after ten years, amount 39,441  
Fair Value 39,494  
Held-to-maturity Securities, Debt Maturities, Fair Value [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 3  
Due after ten years, amount 501,763  
Held-to-maturity, fair value 501,766 547,210
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 $ 19  
Due after five years through ten years, yield 2.53%  
Due after ten years, amount $ 2,966  
Due after ten years, yield 2.91%  
Total, amount $ 2,985  
Total, yield 2.91%  
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 19  
Due after ten years, amount 2,875  
Fair Value 2,894  
Commercial    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 805  
Due in one year or less, yield 2.42%  
Due after one year through five years, amount $ 8,880  
Due after one year through five years, yield 2.51%  
Due after five years through ten years, amount $ 7,233  
Due after five years through ten years, yield 1.80%  
Due after ten years, amount $ 2,425  
Due after ten years, yield 2.09%  
Total, amount $ 19,343  
Total, yield 2.19%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 809  
Due after one year through five years, amount 9,079  
Due after five years though ten years, amount 7,062  
Due after ten years, amount 2,292  
Fair Value 19,242  
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 $ 0  
Due after five years through ten years, yield 0.00%  
Due after ten years, amount $ 937  
Due after ten years, yield 6.06%  
Total, amount $ 937  
Total, yield 6.06%  
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 3  
Due after five years though ten years, amount 0  
Due after ten years, amount 899  
Fair Value 902  
U.S. Treasury and government agencies    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 8,462  
Due in one year or less, yield 1.39%  
Due after one year through five years, amount $ 46,460  
Due after one year through five years, yield 1.75%  
Due after five years through ten years, amount $ 138,653  
Due after five years through ten years, yield 1.44%  
Due after ten years, amount $ 32  
Due after ten years, yield 2.41%  
Total, amount $ 193,607  
Total, yield 1.51%  
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [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 $ 3,830  
Due after one year through five years, yield 1.64%  
Due after five years through ten years, amount $ 117,033  
Due after five years though ten years, yield 1.37%  
Due after ten years, amount $ 0  
Due after ten years, yield 0.00%  
Amortized cost $ 120,863 111,859
Total, yield 1.38%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 8,533  
Due after one year through five years, amount 47,073  
Due after five years though ten years, amount 137,674  
Due after ten years, amount 31  
Fair Value 193,311  
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]    
Due in one year or less, amount 0  
Due after one year through five years, amount 3,687  
Due after five years though ten years, amount 107,130  
Due after ten years, amount 0  
Held-to-maturity, fair value 110,817 109,718
Non-U.S. securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 21,308  
Due in one year or less, yield 0.29%  
Due after one year through five years, amount $ 1,426  
Due after one year through five years, yield 4.35%  
Due after five years through ten years, amount $ 6  
Due after five years through ten years, yield 2.02%  
Due after ten years, amount $ 11  
Due after ten years, yield 9.16%  
Total, amount $ 22,751  
Total, yield 0.55%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 21,169  
Due after one year through five years, amount 1,423  
Due after five years though ten years, amount 6  
Due after ten years, amount 10  
Fair Value 22,608  
Other taxable securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 1,244  
Due in one year or less, yield 1.31%  
Due after one year through five years, amount $ 2,181  
Due after one year through five years, yield 1.73%  
Due after five years through ten years, amount $ 296  
Due after five years through ten years, yield 2.10%  
Due after ten years, amount $ 286  
Due after ten years, yield 2.19%  
Total, amount $ 4,007  
Total, yield 1.66%  
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Due in one year or less, amount $ 43  
Due in one year or less, yield 7.20%  
Due after one year through five years, amount $ 1,111  
Due after one year through five years, yield 2.17%  
Due after five years through ten years, amount $ 429  
Due after five years though ten years, yield 2.76%  
Due after ten years, amount $ 7,171  
Due after ten years, yield 2.47%  
Amortized cost $ 8,754 9,011
Total, yield 2.47%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 1,247  
Due after one year through five years, amount 2,188  
Due after five years though ten years, amount 286  
Due after ten years, amount 272  
Fair Value 3,993  
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]    
Due in one year or less, amount 43  
Due after one year through five years, amount 1,086  
Due after five years though ten years, amount 421  
Due after ten years, amount 6,743  
Held-to-maturity, fair value 8,293 $ 8,962
Tax-exempt securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 2,351  
Due in one year or less, yield 1.39%  
Due after one year through five years, amount $ 5,904  
Due after one year through five years, yield 1.48%  
Due after five years through ten years, amount $ 3,771  
Due after five years through ten years, yield 1.74%  
Due after ten years, amount $ 3,298  
Due after ten years, yield 1.76%  
Total, amount $ 15,324  
Total, yield 1.59%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 2,351  
Due after one year through five years, amount 5,921  
Due after five years though ten years, amount 3,780  
Due after ten years, amount 3,204  
Fair Value 15,256  
Debt securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 34,170  
Due in one year or less, yield 0.73%  
Due after one year through five years, amount $ 64,856  
Due after one year through five years, yield 1.88%  
Due after five years through ten years, amount $ 150,024  
Due after five years through ten years, yield 1.47%  
Due after ten years, amount $ 50,070  
Due after ten years, yield 3.02%  
Total, amount $ 299,120  
Total, yield 1.73%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 34,109  
Due after one year through five years, amount 65,692  
Due after five years though ten years, amount 148,875  
Due after ten years, amount 49,024  
Fair Value $ 297,700