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Acquisitions (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022		Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022		Jun. 30, 2021	Dec. 31, 2021
Business Acquisition [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain			$ 176	$ 36			$ 212
Business Acquisition, Goodwill, Expected Tax Deductible Amount			46	81			46
Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination				$ 7
Cajuina Wind Complex
Business Acquisition [Line Items]
Asset Acquisition, Indemnification Asset, Amount			22				22
Agua Clara
Business Acquisition [Line Items]
Asset Acquisition, Indemnification Asset, Amount			98				98
Tunica Windpower LLC
Business Acquisition [Line Items]
Asset Acquisition, Indemnification Asset, Amount			22				22
Windor Solar
Business Acquisition [Line Items]
Asset Acquisition, Indemnification Asset, Amount	$ 17				$ 17
Cubico Wind Complex
Business Acquisition [Line Items]
Asset Acquisition, Indemnification Asset, Amount			109				109
Other Income [Member]
Business Acquisition [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	0	[1]	176		0	[1]	212
Asset Acquisition of a VIE, Contingent Consideration, Remeasurement Gain	$ 3		$ 0		3		$ 0
AIMco
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners				25.00%
sPower [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred				$ 104
Fluence [Member]
Business Acquisition [Line Items]
Equity Method Investment, Ownership Percentage			43.20%	50.00%			43.20%	34.20%
Cajuina Wind Complex
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross							$ 6
Great Cove Solar I
Business Acquisition [Line Items]
Asset Acquisition, Purchase Price							13
Asset Acquisition, Contingent Consideration, Liability			$ 6				6
Great Cove Solar II
Business Acquisition [Line Items]
Asset Acquisition, Purchase Price							24
Asset Acquisition, Contingent Consideration, Liability			$ 22				$ 22
Windor Solar
Business Acquisition [Line Items]
Asset Acquisition, Consideration Transferred, Contingent Consideration					5
Tunica Windpower LLC
Business Acquisition [Line Items]
Asset Acquisition, Consideration Transferred, Contingent Consideration					$ 7
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			75.00%				75.00%
Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage				25.00%
Windor Solar
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%				100.00%
Agua Clara
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%				100.00%
Tunica Windpower LLC
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%				100.00%
[1] Related to the remeasurement of our existing investment in 5B, accounted for using the measurement alternative.(2)    Primarily related to insurance recoveries associated with property damage at TermoAndes. (3)     Related to the remeasurement of our existing equity interest in sPower’s development platform as part of the step acquisition to form AES Clean Energy Development. See Note 18—Acquisitions for further information. (4)     Related to a full allowance recognized on a sales-type lease receivable at AES Gilbert due to a fire incident in April 2022.

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