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Asset Impairment Expense
 3 Months Ended
Mar. 31, 2025
Impairment or Disposal of Tangible Assets Disclosure [Abstract]  
Asset Impairment Expense ASSET IMPAIRMENT EXPENSE
The following table presents our asset impairment expense for the periods indicated (in millions):
Three Months Ended March 31,
20252024
AES Clean Energy Development Projects (ACED)$31 $7 
Mong Duong17 37 
Other1 2 
Total$49 $46 
AES Clean Energy Development Projects — AES Clean Energy Development has a pipeline of U.S. renewables projects that are in various stages of development and construction. In some cases, if development efforts are not successful, the Company may abandon a particular project, writing off all the intangible assets and capitalized development costs incurred. The fair value of each abandoned project with no salvage value is determined to be zero as there are no future projected cash flows. The Company recognized $31 million and $7 million of pre-tax asset impairment expense related to the write-off of projects that were determined to be no longer viable during three months ended March 31, 2025 and 2024, respectively. AES Clean Energy Development is reported in the Renewables SBU reportable segment.
Mong Duong — In November 2023, the Company entered into an agreement to sell its entire 51% ownership interest in Mong Duong 2, a coal-fired plant in Vietnam, and 51% equity interest in Mong Duong Finance Holdings B.V., an SPV accounted for as an equity affiliate (collectively "Mong Duong"), and as of March 31, 2025, Mong Duong continued to be classified as held-for-sale. The carrying amount of the Mong Duong disposal group in subsequent periods exceeded the expected sales proceeds and as a result, the Company recognized pre-tax impairment expense of $17 million and $37 million during the three months ended March 31, 2025 and 2024, respectively. See Note 18—Held-for-Sale and Dispositions for further information. Mong Duong is reported in the Energy Infrastructure SBU reportable segment.