v3.26.1
Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Financial instruments    
Total debt $ 5,274 $ 5,657
Carrying amount    
Financial instruments    
Cash and cash equivalents 330 620
Restricted cash and cash equivalents 285 377
Total debt 5,274 5,657
Fair value    
Financial instruments    
Cash and cash equivalents 330 620
Restricted cash and cash equivalents 285 377
Total debt $ 5,547 $ 5,755