Equity (Details) - USD ($)
$ in Millions

3 Months Ended

Apr. 25, 2024

Mar. 31, 2024

Stockholders' Equity Note Disclosure

In April 2024, DPL received a $30.0 million capital contribution from AES. DPL then made the same investment in AES Ohio. The proceeds from the equity contribution allow AES Ohio to seek to improve its infrastructure and modernize its grid while maintaining liquidity.

Forecast [Member]

Cash Contribution from Parent Company

$ 30.0

Subsidiaries [Member]

Stockholders' Equity Note Disclosure

SHAREHOLDER'S EQUITY

In April 2024, DPL made an equity contribution to AES Ohio of $30.0 million. The proceeds allow AES Ohio to seek to improve its infrastructure and modernize its grid while maintaining liquidity.

Subsidiaries [Member] | Forecast [Member]

Proceeds from Contributions from Parent

$ 30.0