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v3.19.1

Revenue (Tables) | 3 Months Ended
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Mar. 31, 2019
Revenue from Contracts with Customers [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following table presents our revenue from contracts with customers and other revenue for the periods indicated (in millions):
| Three Months Ended March 31, 2019
| US and Utilities SBU |  | South America SBU |  | MCAC SBU |  | Eurasia SBU |  | Corporate, Other and Eliminations |  | Total
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 778 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 778 |
Other regulated revenue | 7 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 7 |
Total regulated revenue | 785 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 785 |
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | 173 |  |  | 843 |  |  | 429 |  |  | 267 |  |  | — |  |  | 1,712 |
Other non-regulated revenue (1) | 61 |  |  | 2 |  |  | 21 |  |  | 72 |  |  | (3 | ) |  | 153 |
Total non-regulated revenue | 234 |  |  | 845 |  |  | 450 |  |  | 339 |  |  | (3 | ) |  | 1,865 |
Total revenue | $ | 1,019 |  |  | $ | 845 |  |  | $ | 450 |  |  | $ | 339 |  |  | $ | (3 | ) |  | $ | 2,650 |
| Three Months Ended March 31, 2018
| US and Utilities SBU |  | South America SBU |  | MCAC SBU |  | Eurasia SBU |  | Corporate, Other and Eliminations |  | Total
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 711 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 711 |
Other regulated revenue | 11 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 11 |
Total regulated revenue | 722 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 722 |
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | 208 |  |  | 894 |  |  | 387 |  |  | 331 |  |  | (9 | ) |  | 1,811 |
Other non-regulated revenue (1) | 97 |  |  | 1 |  |  | 21 |  |  | 88 |  |  | — |  |  | 207 |
Total non-regulated revenue | 305 |  |  | 895 |  |  | 408 |  |  | 419 |  |  | (9 | ) |  | 2,018 |
Total revenue | $ | 1,027 |  |  | $ | 895 |  |  | $ | 408 |  |  | $ | 419 |  |  | $ | (9 | ) |  | $ | 2,740 |

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- Definition Revenue from Contracts with Customers [Abstract] + References No definition available. + Details
Name: | aes_RevenuefromContractswithCustomersAbstract
Namespace Prefix: | aes_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
Name: | us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration