v3.26.1
Fair Value Option - Loans and Lending Commitments (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value Disclosures [Abstract]    
Aggregate contractual principal in excess of fair value $ 1,240 $ 704
Aggregate contractual principal in excess of fair value 1,983 1,359
Aggregate fair value $ 1,840 $ 1,939