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Financing Receivables (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Financing Receivable Recorded Investment [Line Items] |  |
Financing receivable | $ 103 | $ 101
Financing Receivable, before Allowance for Credit Loss | 111 | 110
Financing Receivable, Allowance for Credit Loss | 8 | 9
Argentina [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Financing receivable | 38 | 39
Financing Receivable, before Allowance for Credit Loss | 46 | 48
Financing Receivable, Allowance for Credit Loss | 8 | 9
Chile [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Financing receivable | 38 | 31
Financing Receivable, before Allowance for Credit Loss | 38 | 31
Financing Receivable, Allowance for Credit Loss | 0 | 0
Other Entity [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Financing receivable | 27 | 31
Financing Receivable, before Allowance for Credit Loss | 27 | 31
Financing Receivable, Allowance for Credit Loss | 0 | $ 0
AES Gener |  |
Financing Receivable Recorded Investment [Line Items] |  |
Proceeds from Sale and Collection of Receivables | $ 55 |

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