v3.26.3
Supplemental Cash Flow Statement and Other Disclosures (Details) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Cash, Cash Equivalents and Restricted Cash        
Cash and cash equivalents $ 410 $ 568 $ 1,212 $ 885
Current restricted cash (included in other current assets) $ 9 $ 4 $ 7 $ 8
Location of current restricted cash Other current assets Other current assets Other current assets Other current assets
Noncurrent restricted cash (included in other assets) $ 2 $ 7 $ 2 $ 6
Restricted Cash and Cash Equivalent, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other Assets, Noncurrent Other Assets, Noncurrent Other Assets, Noncurrent Other Assets, Noncurrent
Cash reported in current assets held for sale       $ 32
Total cash, cash equivalents and restricted cash $ 421 $ 579 $ 1,221 931
Other Non-cash items        
PP&E acquired but not yet paid 139 $ 115 161 $ 96
Amount of obligations outstanding $ 253   $ 424