Fair Value (Nonrecurring Measurements) (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Asset Impairment Charges	$ 174,000,000		$ 482,000,000	$ 194,000,000	$ 483,000,000
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	(290,000,000)	$ (67,000,000)	11,000,000	(290,000,000)	11,000,000	$ (31,000,000)	$ 12,000,000	$ 37,000,000
Corporate, Non-Segment | Corporate Other And Other Eliminations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Adjusted EBITDA	13,000,000		(3,000,000)	12,000,000	1,000,000
Operating Segments [Member] | Renewables
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Adjusted EBITDA	166,000,000		162,000,000	290,000,000	281,000,000
Operating Segments [Member] | Utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Adjusted EBITDA	148,000,000		135,000,000	310,000,000	319,000,000
Operating Segments [Member] | Energy Infrastructure
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Adjusted EBITDA	282,000,000		379,000,000	645,000,000	733,000,000
Operating Segments [Member] | New Energy Technologies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Adjusted EBITDA	(13,000,000)		(26,000,000)	(39,000,000)	(61,000,000)
Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	(78,000,000)	(69,000,000)	37,000,000	(78,000,000)	37,000,000	$ (47,000,000)	$ (13,000,000)	$ (1,000,000)
Other Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	8,000,000			8,000,000
Commodity Option
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs	(86,000,000)			(86,000,000)
Jordan (IPP1 & IPP4)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Selling Expense	6,000,000	5,000,000
Weighted Average [Member] | Commodity | United States of America, Dollars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Commodity prices				52
Maximum [Member] | Commodity | United States of America, Dollars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Commodity prices				97
Minimum [Member] | Commodity | United States of America, Dollars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Commodity prices				12
Long Lived Assets Held And Used [Member] | Maritza
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Asset Impairment Charges	0		475,000,000	0	475,000,000
Long Lived Assets Held And Used [Member] | Jordan (IPP1 & IPP4)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Asset Impairment Charges	15,000,000	14,000,000	0	29,000,000	0
Long Lived Assets Held And Used [Member] | Norgener
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Asset Impairment Charges	137,000,000		0	137,000,000	0
Long Lived Assets Held And Used [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Asset Impairment Charges	18,000,000		0	18,000,000	0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Maritza
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring			927,000,000		927,000,000
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Maritza | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring			0		0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Maritza | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring			0		0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Maritza | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring			$ 452,000,000		$ 452,000,000
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Jordan (IPP1 & IPP4)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	179,000,000	179,000,000		179,000,000
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Jordan (IPP1 & IPP4) | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	0	0		0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Jordan (IPP1 & IPP4) | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	170,000,000	170,000,000		170,000,000
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Jordan (IPP1 & IPP4) | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	0	$ 0		0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Norgener
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	196,000,000			196,000,000
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Norgener | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	0			0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Norgener | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	0			0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Norgener | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	24,000,000			24,000,000
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	29,000,000			29,000,000
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES Renewable Holdings | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	0			0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES Renewable Holdings | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	0			0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES Renewable Holdings | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	11,000,000			11,000,000
Long Lived Assets held and Used | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	35,000,000			35,000,000
Long Lived Assets held and Used | Estimate of Fair Value Measurement [Member] | Norgener | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	24,000,000			24,000,000
Long Lived Assets held and Used | Estimate of Fair Value Measurement [Member] | AES Renewable Holdings | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Carrying Amount Disclosure Nonrecurring	$ 11,000,000			$ 11,000,000
Measurement Input, Long-term Revenue Growth Rate [Member] | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Weighted Average [Member] | Norgener
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				85.00%
Measurement Input, Long-term Revenue Growth Rate [Member] | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Weighted Average [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				1.00%
Measurement Input, Long-term Revenue Growth Rate [Member] | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Maximum [Member] | Norgener
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				994.00%
Measurement Input, Long-term Revenue Growth Rate [Member] | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Maximum [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				44.00%
Measurement Input, Long-term Revenue Growth Rate [Member] | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Minimum [Member] | Norgener
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				(90.00%)
Measurement Input, Long-term Revenue Growth Rate [Member] | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Minimum [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				(42.00%)
Measurement Input, Discount Rate [Member] | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Weighted Average [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				9.00%
Measurement Input, Variable Margin | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Weighted Average [Member] | Norgener
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				16.00%
Measurement Input, Variable Margin | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Weighted Average [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				66.00%
Measurement Input, Variable Margin | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Maximum [Member] | Norgener
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				276.00%
Measurement Input, Variable Margin | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Maximum [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				77.00%
Measurement Input, Variable Margin | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Minimum [Member] | Norgener
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				(75.00%)
Measurement Input, Variable Margin | Valuation, Income Approach [Member] | Property, Plant and Equipment [Member] | Minimum [Member] | AES Renewable Holdings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurement Inputs, Nonrecurring				(194.00%)