v3.26.3
Supplemental Disclosures of Cash Flow Information - Cash Equivalents, Restricted Cash and Fiduciary Cash (Detail) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Cash and Cash Equivalents [Abstract]      
Cash and cash equivalents - non-restricted cash $ 935   $ 1,165
Cash and cash equivalents - restricted cash 278   234
Total cash and cash equivalents 1,213 $ 1,396 1,399
Fiduciary cash 7,596 $ 7,142 6,941
Total cash, cash equivalents, restricted cash and fiduciary cash $ 8,809   $ 8,340