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Investments In and Advances To Affiliates - Effective Equity Ownership Interest and Carrying Values (Details) - USD ($) shares in Thousands, $ in Millions			3 Months Ended		9 Months Ended	12 Months Ended
	Dec. 06, 2023	Feb. 28, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Investments in and Advances to Affiliates [Line Items]
Investments in and advances to affiliates						$ 952	$ 1,124	$ 1,162	$ 1,156	$ 941
Other long-term liabilities							2,881	$ 2,501	$ 2,452	$ 3,114
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Jordan (IPP1 & IPP4)
Investments in and Advances to Affiliates [Line Items]
Divestiture of Business, sales price			$ 58				$ 58
Proceeds from divestiture of business			$ 45
sPower [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage							50.00%			50.00%
Sale of Stock, Percentage of Ownership before Transaction				50.00%
Fluence [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage							28.00%	33.00%		29.00%
Grupo Energia Gas Panama
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage							24.00%		49.00%	24.00%
Sale of Stock, Percentage of Ownership after Transaction					24.00%
Sale of Stock, Percentage of Ownership before Transaction					49.00%
Uplight
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage			25.00%				25.00%			29.00%
Equity method investment, gain (loss) on disposal			$ 52
Energía Natural Dominicana Enadom
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage							33.00%			33.00%
Eolica Mesa La Paz [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage							50.00%			50.00%
Barry
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage							100.00%
sPower OpCo B [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage						49.00%
Sale of Stock, Percentage of Ownership after Transaction				26.00%
sPower [Member]
Investments in and Advances to Affiliates [Line Items]
Investments in and advances to affiliates						$ 432	$ 548			$ 423
Equity Method Investment, Other-than-Temporary Impairment						$ 175
Uplight
Investments in and Advances to Affiliates [Line Items]
Investments in and advances to affiliates							82			86
Eolica Mesa La Paz [Member]
Investments in and Advances to Affiliates [Line Items]
Investments in and advances to affiliates							43			42
Energía Natural Dominicana Enadom
Investments in and Advances to Affiliates [Line Items]
Investments in and advances to affiliates							65			77
Grupo Energia Gas Panama
Investments in and Advances to Affiliates [Line Items]
Investments in and advances to affiliates							194			114
Fluence [Member]
Investments in and Advances to Affiliates [Line Items]
Investments in and advances to affiliates							$ 155			148
Equity method investment, gain (loss) on disposal	$ 136
Proceeds from Divestiture of Businesses, Net of Cash Divested	$ 156
Common Units Sold	7,087,500,000
sPower OpCo B [Member]
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Amount Sold		$ 196
Equity method investment, gain (loss) on disposal		$ 5
AES Panama | Grupo Energia Gas Panama
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment Ownership by Sub							4900.00%
AES Andres
Investments in and Advances to Affiliates [Line Items]
Ownership Percentage by Parent							65.00%
AES Andres | Energía Natural Dominicana Enadom
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment Ownership by Sub							50.00%
sPower OpCo A and B
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment Ownership of Sub							51.00%
Other Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Investments in and advances to affiliates							$ 37			$ 51

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Amount of investment in equity method investee and investment in and advance to affiliate.

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