XML 110 R85.htm IDEA: XBRL DOCUMENT
v3.20.2

Asset Impairment Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Apr. 12, 2019
Asset Impairment Expense [Line Items] |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  | $ 849 | $ 0 | $ 855 | $ 116 |
AES Gener |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  | 781 | 0 | 781 | 0 |
AES Hawaii |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  | 38 | 0 | 38 | 0 |
AES Panama |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  | 30 | 0 | 30 | 0 |
Kilroot and Ballylumford [Member] |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  | 0 | 0 | 0 | 115 |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 114 |  | 114 |
Kilroot and Ballylumford [Member] | Long Lived Assets Held And Used [Member] |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring | [1] |  |  |  |  | $ 232
Other Subsidiaries [Member] |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  | $ 0 | $ 0 | $ 6 | $ 1 |
[1] | Represents the carrying values at the dates of measurement, before fair value adjustment.

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | aes_AssetImpairmentExpenseLineItems
Namespace Prefix: | aes_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the aggregate carrying amount of the assets measured at fair value on a nonrecurring basis by the entity before the recognition of impairment charges. + References No definition available. + Details
Name: | aes_AssetsCarryingAmountDisclosureNonrecurring
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
Name: | us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=aes_AESGenerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aes_AESHawaiiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aes_AESPanamaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aes_KilrootandBallylumfordMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=aes_LongLivedAssetsHeldAndUsedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aes_OtherSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |