v3.26.3
Equity
 9 Months Ended
Sep. 30, 2026
Equity [Abstract]  
Stockholders' Equity Note Disclosure SHAREHOLDER'S EQUITY
Capital Contributions and Distributions
During the nine months ended September 30, 2026 and 2025, AES Ohio received parent equity contributions totaling $125.0 million and $150.0 million, respectively. The proceeds from these equity contributions are primarily for funding needs related to AES Ohio's capital expenditure program.

Agreement to Sell Minority Interest in AES Ohio
On April 4, 2025, DPL sold an aggregate indirect equity interest in AES Ohio of approximately 30% to Astrid Holdings LP, a wholly-owned subsidiary of La Caisse. Prior to the transaction closing, DPL contributed to AES Ohio Holdings, Inc. (“Ohio Holdings”) 100% of the issued and outstanding shares of AES Ohio, such that Ohio Holdings owns 100% of AES Ohio. There is no change in management or operational control of DPL or AES Ohio as a result of the transaction.

Prior to the transaction with La Caisse described above, DPL owned all of the outstanding common stock of AES Ohio.
AOCL
The changes in the components of AOCL during the nine months ended September 30, 2026 are as follows:

$ in millions
Change in unfunded pension and other postretirement obligations
Balance as of January 1, 2026
$
(22.3)
Amounts reclassified from AOCL to earnings
1.2 
Balance as of September 30, 2026
$
(21.1)