v3.25.2
Asset Retirement Obligations (Tables)
9 Months Ended
Jun. 30, 2025
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligation Activity
Asset Retirement Obligation Activity
(in millions)
 NuclearNon-nuclearTotal
Balance at September 30, 2024
$3,814 $6,992 $10,806 (1)
Settlements(9)(178)(187)
Revisions in estimate (non-cash)(24)(22)
Accretion (recorded as regulatory asset)130 197 327 
Balance at June 30, 2025$3,937 $6,987 $10,924 (1)
Note
(1) Includes $316 million and $283 million at June 30, 2025, and September 30, 2024, respectively, in Current liabilities.