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Financing Receivables (Details) - USD ($) $ in Millions	9 Months Ended
Financing Receivables (Details) - USD ($) $ in Millions	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 97		$ 193
Financing Receivable, Allowance for Credit Loss	0		0
Financing receivable	97		193
Accounts Receivable, Allowance for Credit Loss, Current	32		15
Other current assets, net of allowance of $0 and $14, respectively	1,460		1,387
Other noncurrent assets, net of allowance of $11 and $9, respectively	2,593		3,259
Accounts Receivable, after Allowance for Credit Loss, Current	1,868		1,420
Accounts and Financing Receivable, Allowance for Credit Loss	74	$ 62	64	$ 84
Financing Receivable, Sale	267
Warrior Run
Financing Receivable Recorded Investment [Line Items]
Other Receivable, before Allowance for Credit Loss, Noncurrent	108
Accounts and Financing Receivable, Allowance for Credit Loss	7
Chile Renovables SpA
Financing Receivable Recorded Investment [Line Items]
Adjustments to Additional Paid in Capital, Other	(11)	$ (9)
AES Andes
Financing Receivable Recorded Investment [Line Items]
Proceeds from Sale and Collection of Receivables	217
Chile [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss	41		33
Financing Receivable, Allowance for Credit Loss	0		0
Financing receivable	41		33
Accounts Receivable, before Allowance for Credit Loss	227
Proceeds from Sale and Collection of Receivables	151
Other noncurrent assets, net of allowance of $11 and $9, respectively	36
Accounts Receivable, after Allowance for Credit Loss, Current	7
Other Receivable, before Allowance for Credit Loss, Noncurrent	5
Other Entity [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss	9		11
Financing Receivable, Allowance for Credit Loss	0		0
Financing receivable	9		11
UNITED STATES
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss	47		149
Financing Receivable, Allowance for Credit Loss	0		0
Financing receivable	$ 47		$ 149