v3.26.3
Fair Value Disclosures - Financial Assets and Liabilities Not Recorded at Fair Value (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Financial assets:    
Loans and leases, net of ALLL $ 319,867 $ 323,565
Financial liabilities:    
Long-term debt 53,373 41,963
Carrying Amount | Level 2    
Financial assets:    
HTM securities 48,666 47,186
Financial liabilities:    
Time deposits 38,284 37,793
Long-term debt 53,373 41,963
Carrying Amount | Level 3    
Financial assets:    
Loans and leases, net of ALLL 319,858 323,554
Fair Value | Level 2    
Financial assets:    
HTM securities 38,263 39,130
Financial liabilities:    
Time deposits 38,077 37,723
Long-term debt 53,632 42,451
Fair Value | Level 3    
Financial assets:    
Loans and leases, net of ALLL $ 313,670 $ 320,018