v3.25.2
Inventories (Tables)
9 Months Ended
Jun. 30, 2025
Inventory Disclosure [Abstract]  
Schedule of Components of Inventories
Inventories comprise the following: 
June 30,
2025
September 30,
2024
June 30,
2024
Non-utility LPG and natural gas$159 $195 $186 
Gas Utility natural gas38 50 29 
Energy certificates64 69 60 
Materials, supplies and other98 97 104 
Total inventories$359 $411 $379