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v3.23.1

Fair Value (Nonrecurring Measurements) (Details) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2022 | Sep. 30, 2021
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  | $ 230,000,000 | $ 50,000,000 | $ 482,000,000 | $ 201,000,000 | $ 872,000,000 | $ 473,000,000 | $ 763,000,000 | $ 1,575,000,000 | $ 864,000,000 |  |
Goodwill impairment expense |  | 777,000,000 |  |  |  |  |  | 777,000,000 | 0 | 0 |  |
Other non-operating expense |  | 175,000,000 |  |  |  |  |  | 175,000,000 | 0 | $ 202,000,000 |  |
AES PR |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  | $ 73,000,000 |
sPower [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Other than Temporary Impairment |  |  |  |  |  |  |  | 175,000,000 |  |  |  |
AES Jordan |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Selling Expense |  |  |  |  |  |  |  | 5,000,000 |  |  |  |
Estimate of Fair Value Measurement [Member] | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 1,195,000,000 |  |  |  |  |  | 1,195,000,000 |  |  |  |
Equity Method Investments [Member] | sPower [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | 175,000,000 |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 607,000,000 |  |  |  |  |  | 607,000,000 |  |  |  |
Equity Method Investments [Member] | sPower [Member] | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 432,000,000 |  |  |  |  |  | 432,000,000 |  |  |  |
Equity Method Investments [Member] | Estimate of Fair Value Measurement [Member] | sPower [Member] | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 0 |  |  |  |  |  |  |  |  |
Equity Method Investments [Member] | Estimate of Fair Value Measurement [Member] | sPower [Member] | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 0 |  |  |  |  |  | 0 |  |  |  |
Equity Method Investments [Member] | Estimate of Fair Value Measurement [Member] | sPower [Member] | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 432,000,000 |  |  |  |  |  | 432,000,000 |  |  |  |
Long Lived Assets Held And Used [Member] | Buffalo Gap [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  |  | 29,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Kilroot and Ballylumford [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  |  | 11,000,000 |  |  |
Long Lived Assets Held And Used [Member] | buffalo gap II [Member] [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  |  | 73,000,000 |  |  |
Long Lived Assets Held And Used [Member] | AES Hawaii |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  |  | 155,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Angamos [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  |  | 475,000,000 |  |  |
Long Lived Assets Held And Used [Member] | buffalo gap III |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  |  | 91,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Ventanas 1 & 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  |  | 649,000,000 |  |  |
Long Lived Assets Held And Used [Member] | AES PR |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | 468,000,000 |  |  |  |
Long Lived Assets Held And Used [Member] | Mountain View Power Partners |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | 193,000,000 | 67,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Alto Maipo |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  |  | 0 |  |  |
Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | Buffalo Gap [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 29,000,000 |  |  |  | 29,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | buffalo gap II [Member] [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 73,000,000 |  |  |  | 73,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | AES Hawaii |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 241,000,000 |  |  |  | 241,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | Angamos [Member] |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring | [1] |  |  |  | 548,000,000 |  |  |  | 548,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | buffalo gap III |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 91,000,000 |  |  |  | 91,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | Ventanas 1 & 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 661,000,000 |  |  |  | 661,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | Mountain View Power Partners |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 78,000,000 |  |  |  | 78,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Buffalo Gap [Member] | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | $ 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Buffalo Gap [Member] | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Buffalo Gap [Member] | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 0 |  |  | 0 |  |  | 0 | 0 |  |  |
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | buffalo gap II [Member] [Member] | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | buffalo gap II [Member] [Member] | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | buffalo gap II [Member] [Member] | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 0 |  |  |  | 0 |  |  |
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES Hawaii | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES Hawaii | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES Hawaii | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 86,000,000 |  |  |  | 86,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Angamos [Member] | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Angamos [Member] | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Angamos [Member] | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 311,000,000 | 86,000,000 |  | 73,000,000 |  |  | 311,000,000 | 73,000,000 |  |  | 306,000,000
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | buffalo gap III | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | buffalo gap III | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | buffalo gap III | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 0 |  |  |  | 0 |  |  |
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Ventanas 1 & 2 | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Ventanas 1 & 2 | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Ventanas 1 & 2 | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 12,000,000 |  |  |  | 12,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Mountain View Power Partners |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  | 504,000,000 |  |  |  |  |  |  |  |
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Mountain View Power Partners | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  | 0 |  |  |  |  |  |  |  | 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Mountain View Power Partners | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  | 0 |  |  |  |  |  |  |  | $ 0
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Mountain View Power Partners | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  | $ 311,000,000 | 11,000,000 |  |  |  | 11,000,000 |  |  |
Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Ventanas 3 & 4 | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 12,000,000 |  |  |  |  |  |  |  |  |
Long Lived Assets Held For Sale [Member] | AES Panama |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | 51,000,000 |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 216,000,000 |  |  |  |  |  |  |  |  |
Long Lived Assets Held For Sale [Member] | Alto Maipo |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | 25,000,000 |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 190,000,000 |  |  |  |  |  | 190,000,000 |  |  |  |
Long Lived Assets Held For Sale [Member] | Estimate of Fair Value Measurement [Member] | AES Panama | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 0 |  |  |  |  |  |  |  |  |
Long Lived Assets Held For Sale [Member] | Estimate of Fair Value Measurement [Member] | AES Panama | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 170,000,000 |  |  |  |  |  |  |  |  |
Long Lived Assets Held For Sale [Member] | Estimate of Fair Value Measurement [Member] | AES Panama | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 0 |  |  |  |  |  |  |  |  |
Long Lived Assets Held For Sale [Member] | Estimate of Fair Value Measurement [Member] | Alto Maipo | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 0 |  |  |  |  |  |  |  |  |
Long Lived Assets Held For Sale [Member] | Estimate of Fair Value Measurement [Member] | Alto Maipo | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 170,000,000 |  |  |  |  |  |  |  |  |
Long Lived Assets Held For Sale [Member] | Estimate of Fair Value Measurement [Member] | Alto Maipo | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | 0 |  |  |  |  |  |  |  |  |
Goodwill [Member] | AES Andes |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | 644,000,000 |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 644,000,000 |  |  |  |  |  | 644,000,000 |  |  |  |
Goodwill [Member] | AES El Salvador |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | 133,000,000 |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 133,000,000 |  |  |  |  |  | 133,000,000 |  |  |  |
Goodwill [Member] | Estimate of Fair Value Measurement [Member] | AES Andes | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 0 |  |  |  |  |  | 0 |  |  |  |
Goodwill [Member] | Estimate of Fair Value Measurement [Member] | AES Andes | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 0 |  |  |  |  |  | 0 |  |  |  |
Goodwill [Member] | Estimate of Fair Value Measurement [Member] | AES Andes | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 0 |  |  |  |  |  | 0 |  |  |  |
Goodwill [Member] | Estimate of Fair Value Measurement [Member] | AES El Salvador | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  | $ 0 |  |  |  |  |  |  |  |  |
Goodwill [Member] | Estimate of Fair Value Measurement [Member] | AES El Salvador | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 0 |  |  |  |  |  | 0 |  |  |  |
Goodwill [Member] | Estimate of Fair Value Measurement [Member] | AES El Salvador | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 0 |  |  |  |  |  | 0 |  |  |  |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | Kilroot and Ballylumford [Member] |  |  |  |  |  |  |  |  |  |  |  |
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Assets Carrying Amount Disclosure Nonrecurring | [1] |  |  |  | 17,000,000 |  |  |  | 17,000,000 |  |  |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | AES PR |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring | [1] |  |  |  |  |  |  |  |  |  | 920,000,000 |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Reported Value Measurement [Member] | Alto Maipo |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 2,339,000,000 |  |  |  | 2,339,000,000 |  |  |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Kilroot and Ballylumford [Member] | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
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Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | 0 |  |  |  | 0 |  |  |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Kilroot and Ballylumford [Member] | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
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Assets Carrying Amount Disclosure Nonrecurring |  | 6,000,000 |  |  |  |  |  | 6,000,000 |  |  |  |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Kilroot and Ballylumford [Member] | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
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Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES PR | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  | 0 |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES PR | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  | 0 |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | AES PR | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  | $ 452,000,000 |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Alto Maipo | Level 1 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  | $ 0 |  |  |  | $ 0 |  |  |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Alto Maipo | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 0 |  |  |  |  |  | 0 |  |  |  |
Fair Value, Nonrecurring [Member] | Long Lived Assets Held And Used [Member] | Estimate of Fair Value Measurement [Member] | Alto Maipo | Level 3 |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets Measured On Nonrecurring Basis Unobservable Inputs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  | $ 2,043,000,000 |  |  |  |  |  | $ 2,043,000,000 |  |  |  |
[1] | Represents the carrying values at the dates of initial measurement, before fair value adjustment. (2)See Note 22—Asset Impairment Expense for further information. (3)See Note 24—Held-for-Sale and Dispositions for further information. (4)The pre-tax loss recognized was calculated using the $170 million fair value of the Jordan disposal group less cost to sell of $5 million. (5)See Note 9—Goodwill and Other Intangible Assets for further information. (6)See Note 8—Investments in and Advances to Affiliates for further information. (7)Fair value measurement performed for purposes of allocating $224 million of goodwill to the carrying amount of Alto Maipo in determining the loss on disposal. The goodwill allocation was determined based on the relative fair value of Alto Maipo, which was included in the AES Andes reporting unit. Note that the pre-tax loss column excludes the loss on disposal as this fair value measurement is only one component of such loss. See Note 24—Held-for-Sale and Dispositions for further information.

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