XML 86 R61.htm IDEA: XBRL DOCUMENT v3.26.1
Derivative Instruments and Hedging Activities Credit Risk-Related Contingent Features (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Derivative, Net Liability Position, Aggregate Fair Value $ 221 $ 284