General and Summary of Significant Accounting Policies Change in Accounting Estimate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Change in Accounting Estimate [Line Items]
Accounts receivable, net of allowance of $15 and $5, respectively	$ 1,420	$ 1,799
Other Assets, Current	(1,387)	(1,533)
Other Assets, Noncurrent	(3,259)	(4,030)
Retained Earnings (Accumulated Deficit)	(1,386)	(1,635)
Stockholders' Equity Attributable to Noncontrolling Interest	3,497	2,067
Accounts Receivable, Allowance for Credit Loss, Current	15	5
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	40	53
Accounts Receivable, Allowance for Credit Loss, Writeoff	(35)	(19)
Accounts Receivable, Allowance for Credit Loss, Recovery	(1)	0
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	(23)	(14)
Accounts and Financing Receivable, Allowance for Credit Loss	64	83	$ 63
Leasing Arrangement
Change in Accounting Estimate [Line Items]
Loans and Leases Receivable, Allowance		1
Accounts Receivable
Change in Accounting Estimate [Line Items]
Accounts Receivable, Allowance for Credit Loss, Current	15	3	9
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	23	10
Accounts Receivable, Allowance for Credit Loss, Writeoff	(15)	(19)
Accounts Receivable, Allowance for Credit Loss, Recovery	(2)	(3)
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	2	0
Mong Duong Subsidiary [Member]
Change in Accounting Estimate [Line Items]
Accounts Receivable, Allowance for Credit Loss, Current	25	28	30
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	0	0
Accounts Receivable, Allowance for Credit Loss, Writeoff	0	0
Accounts Receivable, Allowance for Credit Loss, Recovery	(3)	(2)
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	0	0
Other Entity [Member]
Change in Accounting Estimate [Line Items]
Accounts Receivable, Allowance for Credit Loss, Current	17	2	1
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	17	1
Accounts Receivable, Allowance for Credit Loss, Writeoff	0	0
Accounts Receivable, Allowance for Credit Loss, Recovery	0	0
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	(2)	0
AES Argentina [Member]
Change in Accounting Estimate [Line Items]
Accounts Receivable, Allowance for Credit Loss, Current	7	30	23
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	0	22
Accounts Receivable, Allowance for Credit Loss, Writeoff	0	0
Accounts Receivable, Allowance for Credit Loss, Recovery	0	(1)
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	(23)	(14)
AES Southland [Domain]
Change in Accounting Estimate [Line Items]
Accounts Receivable, Allowance for Credit Loss, Current	0	20
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	0	20
Accounts Receivable, Allowance for Credit Loss, Writeoff	(20)	0
Accounts Receivable, Allowance for Credit Loss, Recovery	0	0
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	$ 0	0
Accounts Receivable, Allowance for Credit Loss		$ 20	$ 0