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)

v3.22.2
Securities - Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Due in one year or less, amount $ 39  
Due in one year or less, yield 8.65%  
Due after one year through five years, amount $ 5,608  
Due after one year through five years, yield 1.88%  
Due after five years through ten years, amount $ 117,497  
Due after five years though ten years, yield 1.37%  
Due after ten years, amount $ 535,140  
Due after ten years, yield 2.13%  
Amortized cost $ 658,284 $ 674,591
Total, yield 1.99%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Fair Value $ 274,665 308,073
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]    
Due in one year or less, amount 39  
Due after one year through five years, amount 5,327  
Due after five years though ten years, amount 102,818  
Due after ten years, amount 467,358  
Held-to-maturity, fair value 575,542 665,890
Debt securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 32,577  
Due in one year or less, yield 1.11%  
Due after one year through five years, amount $ 73,843  
Due after one year through five years, yield 2.12%  
Due after five years through ten years, amount $ 132,153  
Due after five years through ten years, yield 1.64%  
Due after ten years, amount $ 40,027  
Due after ten years, yield 3.17%  
Total, amount $ 278,600  
Total, yield 1.93%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 32,442  
Due after one year through five years, amount 73,808  
Due after five years though ten years, amount 130,229  
Due after ten years, amount 38,186  
Fair Value 274,665  
Mortgage-backed securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 74  
Due in one year or less, yield 2.38%  
Due after one year through five years, amount $ 3,585  
Due after one year through five years, yield 2.64%  
Due after five years through ten years, amount $ 7,574  
Due after five years through ten years, yield 1.84%  
Due after ten years, amount $ 35,445  
Due after ten years, yield 3.30%  
Total, amount $ 46,678  
Total, yield 3.01%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 74  
Due after one year through five years, amount 3,627  
Due after five years though ten years, amount 7,225  
Due after ten years, amount 33,823  
Fair Value 44,749  
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 5.40%  
Due after five years through ten years, amount $ 47  
Due after five years through ten years, yield 4.55%  
Due after ten years, amount $ 29,947  
Due after ten years, yield 3.29%  
Total, amount $ 29,999  
Total, yield 3.29%  
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 $ 15  
Due after five years though ten years, yield 2.60%  
Due after ten years, amount $ 528,282  
Due after ten years, yield 2.13%  
Amortized cost $ 528,297 553,721
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 28,672  
Fair Value 28,725  
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 14  
Due after ten years, amount 461,111  
Held-to-maturity, fair value 461,125 547,210
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 $ 18  
Due after five years through ten years, yield 2.56%  
Due after ten years, amount $ 2,723  
Due after ten years, yield 2.91%  
Total, amount $ 2,741  
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 18  
Due after ten years, amount 2,595  
Fair Value 2,613  
Commercial    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 74  
Due in one year or less, yield 2.38%  
Due after one year through five years, amount $ 3,580  
Due after one year through five years, yield 2.64%  
Due after five years through ten years, amount $ 7,509  
Due after five years through ten years, yield 1.82%  
Due after ten years, amount $ 1,888  
Due after ten years, yield 2.12%  
Total, amount $ 13,051  
Total, yield 2.09%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 74  
Due after one year through five years, amount 3,619  
Due after five years though ten years, amount 7,159  
Due after ten years, amount 1,720  
Fair Value 12,572  
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 $ 887  
Due after ten years, yield 7.33%  
Total, amount $ 887  
Total, yield 7.33%  
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 836  
Fair Value 839  
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 $ 12,918  
Due in one year or less, yield 1.50%  
Due after one year through five years, amount $ 61,277  
Due after one year through five years, yield 2.02%  
Due after five years through ten years, amount $ 121,490  
Due after five years through ten years, yield 1.61%  
Due after ten years, amount $ 32  
Due after ten years, yield 2.91%  
Total, amount $ 195,717  
Total, yield 1.73%  
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 $ 4,534  
Due after one year through five years, yield 1.80%  
Due after five years through ten years, amount $ 117,040  
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 $ 121,574 111,859
Total, yield 1.39%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 13,032  
Due after one year through five years, amount 61,242  
Due after five years though ten years, amount 119,940  
Due after ten years, amount 31  
Fair Value 194,245  
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 4,297  
Due after five years though ten years, amount 102,381  
Due after ten years, amount 0  
Held-to-maturity, fair value 106,678 109,718
Non-U.S. securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 17,748  
Due in one year or less, yield 0.71%  
Due after one year through five years, amount $ 2,030  
Due after one year through five years, yield 4.28%  
Due after five years through ten years, amount $ 3  
Due after five years through ten years, yield 6.03%  
Due after ten years, amount $ 130  
Due after ten years, yield 4.03%  
Total, amount $ 19,911  
Total, yield 1.10%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 17,500  
Due after one year through five years, amount 2,000  
Due after five years though ten years, amount 3  
Due after ten years, amount 131  
Fair Value 19,634  
Other taxable securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 899  
Due in one year or less, yield 3.02%  
Due after one year through five years, amount $ 1,834  
Due after one year through five years, yield 2.61%  
Due after five years through ten years, amount $ 286  
Due after five years through ten years, yield 3.22%  
Due after ten years, amount $ 299  
Due after ten years, yield 3.01%  
Total, amount $ 3,318  
Total, yield 2.81%  
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Due in one year or less, amount $ 39  
Due in one year or less, yield 8.65%  
Due after one year through five years, amount $ 1,074  
Due after one year through five years, yield 2.24%  
Due after five years through ten years, amount $ 442  
Due after five years though ten years, yield 2.98%  
Due after ten years, amount $ 6,858  
Due after ten years, yield 2.49%  
Amortized cost $ 8,413 9,011
Total, yield 2.51%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 896  
Due after one year through five years, amount 1,827  
Due after five years though ten years, amount 282  
Due after ten years, amount 267  
Fair Value 3,272  
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]    
Due in one year or less, amount 39  
Due after one year through five years, amount 1,030  
Due after five years though ten years, amount 423  
Due after ten years, amount 6,247  
Held-to-maturity, fair value 7,739 $ 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 $ 938  
Due in one year or less, yield 1.21%  
Due after one year through five years, amount $ 5,117  
Due after one year through five years, yield 1.93%  
Due after five years through ten years, amount $ 2,800  
Due after five years through ten years, yield 2.42%  
Due after ten years, amount $ 4,121  
Due after ten years, yield 2.01%  
Total, amount $ 12,976  
Total, yield 2.01%  
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less, amount $ 940  
Due after one year through five years, amount 5,112  
Due after five years though ten years, amount 2,779  
Due after ten years, amount 3,934  
Fair Value $ 12,765