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Derivative Instruments and Hedging Activities (Outstanding Derivative Notionals and Terms by Type) (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Derivative Liability, Noncurrent	$ 118,000,000	$ 294,000,000
Derivative Asset, Noncurrent	319,000,000	170,000,000
Derivative, notional amount	3,700,000,000
AES Brasil [Domain]
Derivative [Line Items]
Disposal Group, Including Discontinued Operation, Liabilities		$ 386,000,000
Libor and Euribor [Member] \| Interest Rate Contract
Derivative [Line Items]
Derivative, notional amount	9,566,000,000
Chilean Peso CLP [Member] \| Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, notional amount	133,000,000
Colombian Peso COP [Member] \| Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, notional amount	68,000,000
Mexico, Pesos \| Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, notional amount	39,000,000
Natural Gas and Natural Gas Liquids (NGL) [Member]
Derivative [Line Items]
Commodity Contract Asset, Current	303,000,000
Energy [Domain]
Derivative [Line Items]
Commodity Contract Asset, Current	62,000,000
Coal [Member]
Derivative [Line Items]
Commodity Contract Asset, Current	$ 7,000,000