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General and Summary of Significant Accounting Policies Change in Accounting Estimate (Details) - USD ($) $ in Millions |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 01, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Change in Accounting Estimate [Line Items] |  |  |  |  |
Accounts receivable, net of allowance for doubtful accounts of $5 and $5, respectively | $ 1,479 | $ 1,799 | $ 1,418 |  | $ 1,479
Other Assets, Current | (800) | (1,533) | (897) |  | (802)
Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent | (1,319) |  |  |  | (1,351)
Other Assets, Noncurrent | (1,605) | (2,979) | (2,188) |  | (1,635)
Retained Earnings (Accumulated Deficit) | (731) | (1,635) | (1,089) |  | (692)
Stockholders' Equity Attributable to Noncontrolling Interest | 2,217 | 2,067 | 1,769 |  | 2,233
Loans and Leases Receivable, Allowance | 32 | 26 | 26 |  |
Accounts Receivable, Allowance for Credit Loss, Current | 20 | 5 | 5 |  |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | 53 | 16 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff |  | (19) | (11) |  |
Accounts Receivable, Allowance for Credit Loss, Recovery |  | 0 | 0 |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation |  | (14) | (4) |  |
Accounts and Financing Receivable, Allowance for Credit Loss |  | 83 | 63 | $ 62 |
Leasing Arrangement |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Loans and Leases Receivable, Allowance |  | 1 | 2 |  |
Other Current Assets [Member] |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Deferred Income Tax Assets, Net | $ 165 |  |  |  | $ 156
Accounts Receivable |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current |  | 3 | 9 | 9 |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | 10 | 9 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff |  | (19) | (11) |  |
Accounts Receivable, Allowance for Credit Loss, Recovery |  | (3) | (2) |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation |  | 0 | 0 |  |
Mong Duong Subsidiary [Member] |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current |  | 28 | 30 | 32 |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | 0 | 0 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff |  | 0 | 0 |  |
Accounts Receivable, Allowance for Credit Loss, Recovery |  | (2) | (2) |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation |  | 0 | 0 |  |
Other Entity [Member] |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current |  | 2 | 1 | 1 |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | 1 | 0 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff |  |  | 0 |  |
Accounts Receivable, Allowance for Credit Loss, Recovery |  | 0 | 0 |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation |  | 0 | 0 |  |
AES Argentina [Member] |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current |  | 30 | 23 | $ 20 |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | 22 | 7 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff |  | 0 | 0 |  |
Accounts Receivable, Allowance for Credit Loss, Recovery |  | (1) | 0 |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation |  | (14) | (4) |  |
AES Southland [Domain] |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current |  | 20 |  |  |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | 20 |  |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff |  | 0 |  |  |
Accounts Receivable, Allowance for Credit Loss, Recovery |  | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation |  | $ 0 |  |  |
Accounts Receivable, Allowance for Credit Loss |  |  | $ 0 |  |
Accounting Standards Update 2016-13 [Member] | Mong Duong Subsidiary [Member] |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Financing Receivable, Credit Loss Rate | 2.40% |  |  |  |
Accounts and Financing Receivable, Allowance for Credit Loss | $ 34 |  |  |  |
Accounting Standards Update 2016-13 [Member] | AES Argentina [Member] |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Financing Receivable, Credit Loss Rate | 41.20% |  |  |  |
Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |  |
Accounts receivable, net of allowance for doubtful accounts of $5 and $5, respectively | $ 0 |  |  |  |
Other Assets, Current | (2) |  |  |  |
Deferred Income Tax Assets, Net | 9 |  |  |  |
Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent | (32) |  |  |  |
Other Assets, Noncurrent | (30) |  |  |  |
Retained Earnings (Accumulated Deficit) | (39) |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | $ (16) |  |  |  |

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