XML 116 R82.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Fair Value (Quantitative Information) (Details) - Measurement Input, Entity Credit Risk [Member] - Interest Rate Contract | 12 Months Ended
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Dec. 31, 2018
Minimum |
Fair Value Inputs Quantitative Information [Line Items] |
Fair Value Measurement Inputs, Nonrecurring | 2.00%
Maximum |
Fair Value Inputs Quantitative Information [Line Items] |
Fair Value Measurement Inputs, Nonrecurring | 5.00%
Weighted Average |
Fair Value Inputs Quantitative Information [Line Items] |
Fair Value Measurement Inputs, Nonrecurring | 4.00%

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | aes_FairValueInputsQuantitativeInformationLineItems
Namespace Prefix: | aes_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair Value Measurement Inputs, Nonrecurring + References No definition available. + Details
Name: | aes_FairValueMeasurementInputsNonrecurring
Namespace Prefix: | aes_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputEntityCreditRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |