v3.26.1
Related Parties - Schedule of Cost of Goods Sold, Accrued Liabilities (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Related Party Transaction [Line Items]    
Amount due related to purchases of chlorine gas $ 254 $ 274
Purchase of Chlorine Gas | Related party payables    
Related Party Transaction [Line Items]    
Amount due related to purchases of chlorine gas $ 2 $ 1