v3.26.1
Derivative Instruments - Asset and Liability Management Derivative Positions (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Notional Value $ 1,600,000  
Asset and Liability Management Positions    
Derivative [Line Items]    
Notional Value 101,194 $ 90,935
Fair Value, Assets 187 180
Fair Value, Liabilities 238 222
Asset and Liability Management Positions | Swaps | Visa Class B Shares    
Derivative [Line Items]    
Fair Value, Liabilities 74 99
Derivative liability notional value 690 995
Asset and Liability Management Positions | Underwriting Purchase and Sale Commitments    
Derivative [Line Items]    
Notional Value 756  
Asset and Liability Management Positions | Other    
Derivative [Line Items]    
Notional Value 1,539 1,085
Fair Value, Assets 5 6
Fair Value, Liabilities 76 99
Asset and Liability Management Positions | Other economic hedges | Interest rate contracts | Receive fixed/pay floating swaps    
Derivative [Line Items]    
Notional Value 5,354 5,318
Fair Value, Assets 0 14
Fair Value, Liabilities 76 30
Asset and Liability Management Positions | Other economic hedges | Interest rate contracts | Pay fixed/receive floating swaps    
Derivative [Line Items]    
Notional Value 2,662 2,479
Fair Value, Assets 0 0
Fair Value, Liabilities 0 0
Asset and Liability Management Positions | Other economic hedges | Interest rate contracts | Futures and forwards | Buy/ Purchased    
Derivative [Line Items]    
Notional Value 4,833 3,235
Fair Value, Assets 10 10
Fair Value, Liabilities 5 1
Asset and Liability Management Positions | Other economic hedges | Interest rate contracts | Futures and forwards | Sell/ Written    
Derivative [Line Items]    
Notional Value 4,403 3,583
Fair Value, Assets 6 1
Fair Value, Liabilities 12 10
Asset and Liability Management Positions | Other economic hedges | Interest rate contracts | Options | Buy/ Purchased    
Derivative [Line Items]    
Notional Value 8,955 8,930
Fair Value, Assets 127 131
Fair Value, Liabilities 0 0
Asset and Liability Management Positions | Other economic hedges | Interest rate contracts | Options | Sell/ Written    
Derivative [Line Items]    
Notional Value 2,922 2,553
Fair Value, Assets 16 13
Fair Value, Liabilities 49 58
Asset and Liability Management Positions | Other economic hedges | Foreign exchange forward contracts    
Derivative [Line Items]    
Notional Value 891 940
Fair Value, Assets 5 3
Fair Value, Liabilities 4 3
Asset and Liability Management Positions | Other economic hedges | Equity contracts    
Derivative [Line Items]    
Notional Value 366 334
Fair Value, Assets 5 2
Fair Value, Liabilities 3 1
Asset and Liability Management Positions | Other economic hedges | Credit contracts    
Derivative [Line Items]    
Notional Value 2,509 2,265
Fair Value, Assets 0 0
Fair Value, Liabilities 10 18
Asset and Liability Management Positions | Fair value hedges | Interest rate contracts | Receive fixed/pay floating swaps    
Derivative [Line Items]    
Notional Value 13,025 7,950
Fair Value, Assets 0 0
Fair Value, Liabilities 0 0
Asset and Liability Management Positions | Fair value hedges | Interest rate contracts | Pay fixed/receive floating swaps    
Derivative [Line Items]    
Notional Value 23,270 25,154
Fair Value, Assets 0 0
Fair Value, Liabilities 0 0
Asset and Liability Management Positions | Cash flow hedges | Interest rate contracts | Receive fixed/pay floating swaps    
Derivative [Line Items]    
Notional Value 29,580 25,350
Fair Value, Assets 2 0
Fair Value, Liabilities 3 0
Asset and Liability Management Positions | Cash flow hedges | Interest rate contracts | Pay fixed/receive floating swaps    
Derivative [Line Items]    
Notional Value 0 1,000
Fair Value, Assets 0 0
Fair Value, Liabilities 0 0
Asset and Liability Management Positions | Net investment hedges | Foreign exchange forward contracts    
Derivative [Line Items]    
Notional Value 885 759
Fair Value, Assets 11 0
Fair Value, Liabilities $ 0 $ 2