v3.26.3
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Cash, Cash Equivalents and Restricted Cash [Abstract]        
Cash and cash equivalents $ 232 $ 969    
Restricted cash 107 276    
Total cash, cash equivalents and restricted cash shown in the Unaudited Condensed Statements of Consolidated Cash Flows $ 339 $ 1,245 $ 432 $ 838