v3.25.2
Basis of Presentation (Schedule of Cash Activity) (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Cash and cash equivalents $ 541 $ 534 $ 511  
Program cash 57 60 68  
Restricted cash 5   4  
Total cash and cash equivalents, program and restricted cash $ 603 $ 597 $ 583 $ 644