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Asset Impairment Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Asset Impairment Expense [Line Items] |  |  |  |
Impairment of Long-Lived Assets Held-for-use | $ 872 | $ 0 | $ 1,345 | $ 6
Other Asset Impairment Charges | 872 | 0 | 1,345 | 6
Other Subsidiaries [Member] |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Impairment of Long-Lived Assets Held-for-use | 1 | 0 | (1) | 6
AES Puerto Rico |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Impairment of Long-Lived Assets Held-for-use | 0 | 0 | 475 | 0
Assets Carrying Amount Disclosure Nonrecurring | 73 |  | 73 |
AES Puerto Rico | Long Lived Assets Held And Used [Member] |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Other Asset Impairment Charges |  |  | 475 |
Mountain View Power Partners |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  | 67 |
Mountain View Power Partners | Long Lived Assets Held And Used [Member] |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Other Asset Impairment Charges | 67 | 0 | 67 | 0
Angamos [Member] |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  | 155 |
Angamos [Member] | Long Lived Assets Held And Used [Member] |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Other Asset Impairment Charges | 155 | 0 | 155 | 0
Ventanas [Domain] |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  | 649 |
Ventanas [Domain] | Long Lived Assets Held And Used [Member] |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |
Other Asset Impairment Charges | $ 649 | $ 0 | $ 649 | $ 0

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- 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
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- 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=123570139&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=123351718&loc=d3e2420-110228 + Details
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- Definition The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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