Asset Impairment Expense (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 158			$ 50	$ 352	$ 533
Other Asset Impairment Charges	158			50	352	533
Other Subsidiaries [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	8			(1)	18	14
Angamos [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring				216		216
Angamos [Member] | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges						51
Angamos [Member] | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring				0		0
Maritza | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring				920		920
Maritza | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges	0			0	0	468
Maritza | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring				452		452
Jordan (IPP1 & IPP4) | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	178	$ 179	$ 179		178
Jordan (IPP1 & IPP4) | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges	14	15	14	51	43	51
Jordan (IPP1 & IPP4) | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	0	$ 0	$ 0		0
AES Renewable Holdings | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	29				29
AES Renewable Holdings | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges	0			0	18	0
AES Renewable Holdings | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	11				11
Norgener | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	196				196
Norgener | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges	0			0	137	0
Norgener | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	24				24
TEP
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use					59	0
TEP | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	153				153
TEP | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges					59
TEP | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	94				94
TEG
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	77			$ 0	77	$ 0
TEG | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	170				170
TEG | Long Lived Assets Held And Used [Member]
Asset Impairment Expense [Line Items]
Other Asset Impairment Charges					77
TEG | Long Lived Assets Held And Used [Member] | Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Asset Impairment Expense [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	$ 93				$ 93