Other Income and Expense - Other Expense (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2022		Mar. 31, 2021	Dec. 31, 2021
Schedule of other expense [Line Items]
Other Expenses	$ 12		$ 16
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain				$ 36
Gain (Loss) on Disposition of Other Assets	(4)		20
Other Expense [Member]
Schedule of other expense [Line Items]
Sales-type and Direct Financing Leases, Profit (Loss)	0	[1]	13
Gain (Loss) on Disposition of Assets	4		3
Other Nonoperating Expense	8		0
Other Expenses	12		16
Other Income [Member]
Schedule of other expense [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	0	[2]	36
Allowance for Funds Used During Construction, Capitalized Interest	$ 3		$ 2

[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 equity interest in sPower’s development platform as part of the step acquisition to form AES Clean Energy Development. See Note 17—Acquisitions for further information.