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v3.20.2

Debt - Non-Recourse Debt Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt defaults at risk of causing cross default |  |  | 0 |  |  | 0 |
Loss on extinguishment of debt |  |  | $ (54) |  | $ (65) | $ (95) | $ (126)
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 4,229 | 3,580
Nonrecourse Debt [Member] | IPALCO Enterprises, Inc. [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 2 |
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 475 |
Repayments of Long-term Debt |  |  |  |  |  | (470) |
Nonrecourse Debt [Member] | AES Southland [Domain] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 0 |
Proceeds From Issuance Of Nonrecourse Debt | [1] |  |  |  |  | 283 |
Repayments of Long-term Debt |  |  |  |  |  | 0 |
Nonrecourse Debt [Member] | AES Tiete [Domain] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 0 |
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 260 |
Repayments of Long-term Debt |  |  |  |  |  | 0 |
Nonrecourse Debt [Member] | DPL Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 34 |
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 555 |
Repayments of Long-term Debt |  |  |  |  |  | (520) |
Nonrecourse Debt [Member] | Gener Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 0 |
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 90 |
Repayments of Long-term Debt |  |  |  |  |  | (8) |
Nonrecourse Debt [Member] | Cochrane Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 1 |
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 485 |
Repayments of Long-term Debt |  |  |  |  |  | (445) |
Nonrecourse Debt [Member] | Mong Duong Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 0 |
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 150 |
Repayments of Long-term Debt |  |  |  |  |  | (1) |
Nonrecourse Debt [Member] | Angamos [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 7 |
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 0 |
Repayments of Long-term Debt |  |  |  |  |  | (309) |
Nonrecourse Debt [Member] | AES Panama |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 16 |
Proceeds From Issuance Of Nonrecourse Debt |  |  |  |  |  | 1,485 |
Repayments of Long-term Debt |  |  |  |  |  | $ (1,228) |
Nonrecourse [Member] | IPALCO Enterprises, Inc. [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  | $ (2) |  |  |
Nonrecourse [Member] | DPL Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | (34) |  |  |  | (43)
Nonrecourse [Member] | Mong Duong Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  | $ (31)
Nonrecourse [Member] | AES Panama |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | (16) |  |  |  |
Extinguishment of Debt, Amount |  |  | 447 |  |  |  |
Nonrecourse [Member] | Colon [Domain] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  | 610 |  |  |  |
Nonrecourse [Member] | Changuinola [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  | $ 171 |  |  |  |
4.41% SPV Loan [Member] | Nonrecourse [Member] | Mong Duong Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 4.41% |  | 4.41%
7.18% SPV Loan [Member] [Member] | Nonrecourse [Member] | Mong Duong Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 7.18% |  | 7.18%
3.95% Senior Notes due 2049 [Domain] | Senior Notes [Member] | DP&L [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  |  |  | $ 425 |  | $ 425
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 3.95% |  | 3.95%
Variable Rate [Domain] | Senior Notes [Member] | DP&L [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  |  |  | $ 445 |  | $ 445
Extinguishment of Debt, Amount |  |  |  |  |  |  | 435
4.35% Senior Notes due 2029 [Domain] | Nonrecourse [Member] | DPL Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  |  |  | $ 400 |  | $ 400
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 4.35% |  | 4.35%
7.25% Senior Notes due 2021 [Domain] | Nonrecourse [Member] | DPL Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  |  |  | $ 780 |  | $ 780
Debt Instrument, Interest Rate, Stated Percentage |  |  | 7.25% |  | 7.25% | 7.25% | 7.25%
Extinguishment of Debt, Amount |  | $ 380 |  |  |  |  | $ 400
4.125% Senior Notes due 2025 [Domain] | Nonrecourse [Member] | DPL Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  | $ 415 |  |  | $ 415 |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 4.125% |  |  | 4.125% |
4.25% Senior Notes due 2030 [Domain] | Nonrecourse [Member] | IPALCO Enterprises, Inc. [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  | $ 475 |  |  | $ 475 |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 4.25% |  |  | 4.25% |
3.45% Senior Notes due 2020 [Domain] | Nonrecourse [Member] | IPALCO Enterprises, Inc. [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 3.45% |  |  | 3.45% |
Extinguishment of Debt, Amount |  |  |  | 405 |  |  |
65 Million Term Loan due 2020 [Domain] | Nonrecourse [Member] | IPALCO Enterprises, Inc. [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  |  | 65 |  |  |
6.25% Senior Notes due 2034 [Member] | Nonrecourse [Member] | Cochrane Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  | $ 485 |  |  | $ 485 |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 6.25% |  |  | 6.25% |
Extinguishment of Debt, Amount |  |  | $ 445 |  |  |  |
4.375% Senior Notes due 2030 [Member] | Nonrecourse [Member] | AES Panama |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  | $ 1,400 |  |  | $ 1,400 |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 4.375% |  |  | 4.375% |
AES Panama Term Loan due 2023 [Member] | Nonrecourse [Member] | AES Panama |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Issued new debt |  |  | $ 105 |  |  | $ 105 |
LIBOR 2.25% Senior Notes Due In 2029 and LIBOR 4.15% Senior Notes Due in 2029 [Member] | Nonrecourse [Member] | Mong Duong Subsidiary [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  |  |  |  |  | $ 1,100
London Interbank Offered Rate (LIBOR) [Member] | LIBOR 1.75% Term Loan Due In 2022 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  | 1.75% |
London Interbank Offered Rate (LIBOR) [Member] | LIBOR 2.25% Senior Notes Due In 2029 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  | 2.25%
London Interbank Offered Rate (LIBOR) [Member] | LIBOR 4.15% Senior Notes Due In 2029 [Member] [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  | 4.15%
Corporate and Other [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  | $ (37) |  |  | $ 5
Corporate and Other [Member] | LIBOR 1.75% Term Loan Due In 2022 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  |  |  |  |  | $ 343
Corporate and Other [Member] | 4.0% Senior Notes Due 2021 [Domain] [Domain] | Senior Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 4.00% |  |  | 4.00% |
[1] | Issuances relate to the June 2017 long-term non-recourse debt financing to fund the Southland repowering construction projects. (2)Includes transactions at DPL and its subsidiary, DP&L. (3)Repayments relate to existing obligations at AES Panama, Changuinola, and Colon.

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