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Income Taxes (Effective Income Tax Reconciliation) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Statutory Federal tax rate | (21.00%) | (21.00%) | (21.00%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount | $ (1.27) |  |
State taxes, net of Federal tax benefit | (1.00%) | (6.00%) | (6.00%)
Taxes on foreign earnings | (42.00%) | (2.00%) | 15.00%
Valuation allowance | (10.00%) | 7.00% | 16.00%
Uncertain tax positions | 7.00% | 16.00% | 0.00%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent | 0.00% | (1.00%) | (3.00%)
Income Tax Expense (Benefit) | $ 265,000,000 | $ (133,000,000) | $ 216,000,000
Other—net | (5.00%) | (2.00%) | 3.00%
Effective tax rate | (157.00%) | 13.00% | 44.00%
Investment Tax Credit | $ 0 | $ 0 | $ (0.08)
Deconsolidation, Gain (Loss), Amount | 2,074,000,000 |  |
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | 41,000,000 |  |
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount | $ 41,000,000 |  |
Federal | Latest Tax Year |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Operating Loss Carryforwards, Limitations on Use | 1.37 billion |  |
Guacolda Affiliate [Member] |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Income Tax Expense (Benefit) | $ 20,000,000 |  |
Brazil subsidiary [Member] |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Income Tax Expense (Benefit) | 93,000,000 |  |
Na Pua Makani Power Partners [Member] |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Investment Tax Credit | $ (35,000,000) |  |
AES Southland [Domain] |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Uncertain tax positions | 35.00% |  |
Income Tax Expense (Benefit) | $ 27,000,000 |  | $ 75,000,000
Buffalo Gap [Member] |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Statutory Federal tax rate | 0.00% | (3.00%) | 0.00%
Alto Maipo |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Taxes on foreign earnings | 0.00% | (17.00%) | 0.00%
Deconsolidation, Gain (Loss), Amount | $ 775,000,000 |  |
US and Utilities SBU |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Income Tax Expense (Benefit) | $ 176,000,000 |  |
AES Andes |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Statutory Federal tax rate | (127.00%) | 0.00% | 0.00%
UNITED STATES |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Statutory Federal tax rate | (21.00%) |  |
Effective tax rate | 35.00% |  |
Non-US [Member] |  |  |
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Income Tax Expense (Benefit) | $ 27,000,000 | $ 27,000,000 | $ 33,000,000

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