v3.25.1
Inventories (Tables)
6 Months Ended
Mar. 31, 2025
Inventory Disclosure [Abstract]  
Schedule of Components of Inventories
Inventories comprise the following: 
March 31,
2025
September 30,
2024
March 31,
2024
Non-utility LPG and natural gas$179 $195 $196 
Gas Utility natural gas50 
Energy certificates58 69 63 
Materials, supplies and other98 97 108 
Total inventories$341 $411 $375