v3.26.1
SUPPLEMENTAL FINANCIAL INFORMATION Restricted cash reconciliation (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Supplemental Cash Flow Elements [Abstract]        
Cash and cash equivalents $ 3 $ 13 $ 3 $ 19
Restricted cash included in other non-current assets 36 26 8 8
Cash, Cash Equivalents and Restricted Cash $ 39 $ 39 $ 11 $ 27