v3.26.1
Fair Value (Additional Fair Value Information Related To Financial Instruments) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Securities held to maturity $ 75,522 $ 67,979
Carrying Amount    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Securities held to maturity 78,410 70,109
Net loans (excludes leases) 355,209 318,869
Other assets 6,292 5,109
Total assets 468,656 433,800
Financial Instruments, Financial Liabilities, Balance Sheet Groupings    
Time deposits 31,767 30,361
Borrowed funds 84,411 56,097
Unfunded lending related commitments 809 818
Other liabilities 1,239 1,091
Total liabilities 118,226 88,367
Carrying Amount | Cash and due from banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 5,951 6,777
Carrying Amount | Interest-earning deposits with banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 22,794 32,936
Fair Value    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Securities held to maturity 75,522 67,979
Net loans (excludes leases) 352,797 316,005
Other assets 6,292 5,109
Total assets 463,356 428,806
Financial Instruments, Financial Liabilities, Balance Sheet Groupings    
Time deposits 31,914 30,576
Borrowed funds 85,519 57,289
Unfunded lending related commitments 809 818
Other liabilities 1,239 1,091
Total liabilities 119,481 89,774
Fair Value | Cash and due from banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 5,951 6,777
Fair Value | Interest-earning deposits with banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 22,794 32,936
Level 1 | Fair Value    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Securities held to maturity 16,635 19,564
Net loans (excludes leases) 0 0
Other assets 0 0
Total assets 44,757 58,316
Financial Instruments, Financial Liabilities, Balance Sheet Groupings    
Time deposits 0 0
Borrowed funds 0 0
Unfunded lending related commitments 0 0
Other liabilities 0 0
Total liabilities 0 0
Level 1 | Fair Value | Cash and due from banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 5,951 6,777
Level 1 | Fair Value | Interest-earning deposits with banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 22,171 31,975
Level 2 | Fair Value    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Securities held to maturity 58,730 48,247
Net loans (excludes leases) 0 0
Other assets 6,291 5,109
Total assets 65,644 54,317
Financial Instruments, Financial Liabilities, Balance Sheet Groupings    
Time deposits 31,914 30,576
Borrowed funds 85,026 56,793
Unfunded lending related commitments 0 0
Other liabilities 1,239 1,091
Total liabilities 118,179 88,460
Level 2 | Fair Value | Cash and due from banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 0 0
Level 2 | Fair Value | Interest-earning deposits with banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 623 961
Level 3 | Fair Value    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Securities held to maturity 157 168
Net loans (excludes leases) 352,797 316,005
Other assets 1 0
Total assets 352,955 316,173
Financial Instruments, Financial Liabilities, Balance Sheet Groupings    
Time deposits 0 0
Borrowed funds 493 496
Unfunded lending related commitments 809 818
Other liabilities 0 0
Total liabilities 1,302 1,314
Level 3 | Fair Value | Cash and due from banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents 0 0
Level 3 | Fair Value | Interest-earning deposits with banks    
Financial Instruments, Financial Assets, Balance Sheet Groupings    
Cash and cash equivalents $ 0 $ 0