Asset Impairment Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 482	$ 872	$ 483	$ 1,345
Other Asset Impairment Charges	482	872	483	1,345
Other Subsidiaries [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	7	1	8	(1)
AES Puerto Rico
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	0	0	0	475
Assets Carrying Amount Disclosure Nonrecurring		73		73
AES Puerto Rico | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges				475
Mountain View Power Partners
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use			67
Assets Carrying Amount Disclosure Nonrecurring	11		11
Mountain View Power Partners | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges	0	67	0	67
Angamos [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use			155
Assets Carrying Amount Disclosure Nonrecurring	86		86
Angamos [Member] | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges	0	155	0	155
Ventanas [Domain]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use			649
Assets Carrying Amount Disclosure Nonrecurring	12		12
Ventanas [Domain] | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges				67
Ventanas 3 & 4 | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges	0	649	0	649
Maritza
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use			475
Assets Carrying Amount Disclosure Nonrecurring	452		452
Maritza | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges	$ 475	$ 0	$ 475	$ 0