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Derivative Instruments - Summary of Asset and Liability Management Derivative Positions of Company (Parenthetical) (Detail) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Derivative [Line Items]    
Total notional value $ 1,200,000  
Asset and Liability Management Positions [Member]    
Derivative [Line Items]    
Total notional value 86,899 $ 90,763
Fair Value, Liabilities 253 422
Asset and Liability Management Positions [Member] | Swap [Member] | Visa Class B Shares [Member]    
Derivative [Line Items]    
Notional Value, Liabilities 2,000 1,800
Fair Value, Liabilities 119 190
Asset and Liability Management Positions [Member] | Underwriting Purchase and Sale Commitments [Member]    
Derivative [Line Items]    
Total notional value $ 671 $ 13