Other Income and Expense - Other Income (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2022		Sep. 30, 2021	Sep. 30, 2022		Sep. 30, 2021
Schedule of Other Nonoperating Income [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain						$ 36
Other Nonoperating Income	$ 4		$ 48	$ 80		274
Colon [Domain]
Schedule of Other Nonoperating Income [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain						6
Other Income [Member]
Schedule of Other Nonoperating Income [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	0	[1]	8	0	[1]	220
Insurance proceeds (2)	0		0	(16)		0
Other income	0		6	15		16
Other Nonoperating Income	$ 4		$ 48	$ 80		$ 274

[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 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.