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Investments In and Advances To Affiliates - Effective Equity Ownership Interest and Carrying Values (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Feb. 28, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2020
Dec. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates         $ 952 $ 1,080     $ 835
Other long-term liabilities         $ 3,168 $ 3,358      
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain   $ 178 $ 36 $ 214          
sPower [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Equity Method Investment, Ownership Percentage         50.00% 50.00%      
Fluence [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Equity Method Investment, Ownership Percentage   43.20% 50.00%   33.50% 34.00%      
Grupo Energia Gas Panama                  
Investments in and Advances to Affiliates [Line Items]                  
Equity Method Investment, Ownership Percentage         49.00% 49.00%      
Uplight                  
Investments in and Advances to Affiliates [Line Items]                  
Equity Method Investment, Ownership Percentage         29.00% 29.40% 29.60% 32.30%  
Energía Natural Dominicana Enadom                  
Investments in and Advances to Affiliates [Line Items]                  
Equity Method Investment, Ownership Percentage         43.00% 43.00%      
Eolica Mesa La Paz [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Equity Method Investment, Ownership Percentage [1]         50.00% 50.00%      
Barry                  
Investments in and Advances to Affiliates [Line Items]                  
Equity Method Investment, Ownership Percentage [2]         100.00% 100.00%      
sPower [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates         $ 432 $ 492      
Equity Method Investment, Ownership Acquired           25.00%      
Equity Method Investment, Other than Temporary Impairment         175        
Uplight                  
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates         81 $ 103      
Eolica Mesa La Paz [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates [1]         32 48      
Energía Natural Dominicana Enadom                  
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates         64 53      
Barry                  
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates [2]         0 0      
Grupo Energia Gas Panama                  
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates         82 41      
Fluence [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates         $ 205 304      
Colon [Domain]                  
Investments in and Advances to Affiliates [Line Items]                  
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain           6      
sPower OpCo B [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Equity method investment, ownership percentage sold         49.00%        
sPower OpCo B [Member] | Subsequent Event [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Equity Method Investment, Amount Sold $ 196                
Other Affiliates [Member]                  
Investments in and Advances to Affiliates [Line Items]                  
Investments in and advances to affiliates [3]         $ 56 $ 39      
[1] The Company's ownership in Energía Natural Dominicana Enadom is held through Andres, an 85%-owned consolidated subsidiary. Andres owns 50% of Energía Natural Dominicana Enadom, resulting in an AES effective ownership of 43%.
[2] Represents a VIE in which the Company holds a variable interest, but is not the primary beneficiary.
[3] Includes Bosforo, Tucano and various other equity method investments.