Other Income and Expense - Other Expense (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
Schedule of other expense [Line Items]
Other Expenses	$ 29		$ 4		$ 41		$ 20
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain			176	$ 36			212
Gain (Loss) on Disposition of Other Assets					(2)		(20)
Other Expense [Member]
Schedule of other expense [Line Items]
Sales-type and Direct Financing Leases, Profit (Loss)	0		0		0	[1]	13
Gain (Loss) on Disposition of Assets	5		4		9		7
Other Nonoperating Expense	4		0		12		0
Other Expenses	29		4		41		20
Loss from Catastrophes	20		0		20		0
Other Income [Member]
Schedule of other expense [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	0	[2]	176		0	[2]	212
Insured Event, Gain (Loss)	16		0		16		0
Litigation Settlement, Amount Awarded from Other Party	6		0		6		0
Asset Acquisition of a VIE, Contingent Consideration, Remeasurement Gain	3		0		3		0
Allowance for Funds Used During Construction, Capitalized Interest	2		2		5		4
Proceeds, Financing Receivable, Previously Written Off, Recovery	5		0		5		0
Other Income [Member] | Valuation, Market Approach
Schedule of other expense [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	$ 26		$ 0		$ 26		$ 0

[1] Related to a loss recognized at commencement of a sales-type lease at AES Renewable Holdings. See Note 9—Leases for further information.

[2] 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.