Other Income and Expense - Other Expense (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2022		Jun. 30, 2022	Sep. 30, 2021	Sep. 30, 2022		Sep. 30, 2021
Schedule of other expense [Line Items]
Other Expenses	$ 10			$ 12	$ 51		$ 32
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain							36
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	0			6	9		13
Gain (Loss) Related to Litigation Settlement	8			2	8		2
Other Nonoperating Expense	2			4	14		4
Other Expenses	10			12	51		32
Loss from Catastrophes	0		$ 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]		8	0	[2]	220
Insured Event, Gain (Loss)	0			0	16		0
Litigation Settlement, Amount Awarded from Other Party	0			0	6		0
Asset Acquisition of a VIE, Contingent Consideration, Remeasurement Gain	0			32	3		32
Allowance for Funds Used During Construction, Capitalized Interest	4			2	9		6
Proceeds, Financing Receivable, Previously Written Off, Recovery	0			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	$ 0			$ 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 contingent consideration on the Great Cove Solar acquisition at AES Clean Energy. See Note 18—Acquisitions for further information. (4)     For the three months ended September 30, 2021, primarily related to the $6 million remeasurement of our existing equity interest in Gas Natural Atlántico II, S. de. R.L.’s assets to their acquisition-date fair value. See Note 6—Investments in and Advances to Affiliates for further information. For the nine months ended September 30, 2021, primarily related to the $214 million 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. (5)     Related to a full allowance recognized on a sales-type lease receivable at AES Gilbert due to a fire incident in April 2022.