XML 84 R50.htm IDEA: XBRL DOCUMENT v3.25.4
Inventory (Tables)
12 Months Ended
Dec. 31, 2025
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventory consisted of:
 As of December 31,
(In millions)20252024
Coal$111 $194 
Natural gas177 126 
Fuel oil11 
Finished goods73 79 
Spare parts89 71 
Total Inventory$461 $478