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Financial Statement Presentation New Accounting Pronouncement Adopted (Details) - USD ($) $ in Millions | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jan. 01, 2022 | Dec. 31, 2021 | Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | $ 1,075 |  |  | $ 943 |
Restricted Cash and Cash Equivalents, Current | 412 |  |  | 304 |
Debt service reserves and other deposits | 164 |  |  | 237 |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 1,651 | $ 2,026 |  | 1,484 | $ 1,827
Accounts Receivable, Allowance for Credit Loss, Current | 5 |  |  | 5 |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 28 | 4 |  |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (11) | (6) |  |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 0 | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation | (5) | (3) |  |  |
Accounts and Financing Receivable, Allowance for Credit Loss | 75 | 57 |  | 63 | 62
Allowance for Doubtful Accounts, Premiums and Other Receivables | 5 | 4 |  |  |
Preferred Stock, Value, Issued | 838 | 838 |  | 838 |
Additional Paid in Capital | 6,924 |  |  | 7,106 |
Accounting Standards Update 2020-06 |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Preferred Stock, Value, Issued |  |  | $ 13 |  |
Additional Paid in Capital |  |  | $ 13 |  |
Accounts Receivable [Member] |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current | 4 | 5 |  | 3 | 9
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 5 | 1 |  |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (5) | (6) |  |  |
Financing Receivable, Allowance for Credit Loss, Recovery | (1) | (1) |  |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation | 0 | 0 |  |  |
Mong Duong Subsidiary [Member] |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current | 29 | 31 |  | 30 | 32
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 0 | 0 |  |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | 0 | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Recovery | (1) | (1) |  |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation | 0 | 0 |  |  |
AES Argentina [Member] |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current | 21 | 20 |  | 23 | 20
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 3 | 3 |  |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | 0 | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 0 | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation | (5) | (3) |  |  |
Other Entity [Member] |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Current | 1 | 1 |  | 7 | $ 1
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 0 | 0 |  |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (6) | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 0 | 0 |  |  |
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation | 0 | $ 0 |  |  |
AES Gilbert |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Sales-type Lease, Net Investment in Lease, Allowance for Credit Loss | 20 |  |  | $ 0 |
Sales-type Lease, Net Investment in Lease, Allowance for Credit Loss, Period Increase (Decrease) | 20 |  |  |  |
Sales-type Lease, Net Investment in Lease, Allowance for Credit Loss, Writeoff | 0 |  |  |  |
Sales-type Lease, Net Investment in Lease, Allowance for Credit Loss, Recovery | 0 |  |  |  |
Sales-type Lease, Net Investment in Lease, Credit Loss Expense (Reversal) | $ 0 |  |  |  |

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