v3.26.3
Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Goodwill And Other Intangible Assets [Abstract]        
Amortization expense $ 4 $ 4 $ 12 $ 12