v3.25.2
Inventory
6 Months Ended
Jun. 30, 2025
Inventory Disclosure [Abstract]  
Inventory
5. Inventory
June 30,
2025
December 31,
2024
Coal$67 $92 
Oil products54 65 
Fuel inventory for electric generation121 157 
Materials and supplies, net100 88 
Environmental products57 
Inventory, net$224 $302