v3.26.1
Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities - Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash Inclusive of Fiduciary Cash (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Supplemental Cash Flow Elements [Abstract]        
Cash and cash equivalents $ 918 $ 1,079 $ 8,893  
Fiduciary cash 2,613   2,026  
Restricted cash 268   0  
Total cash, cash equivalents and restricted cash inclusive of fiduciary cash at the end of the period $ 3,799 $ 3,815 $ 10,919 $ 2,502