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v2.4.1.9

Subsequent Events (Details) (USD $) | 3 Months Ended | 57 Months Ended | 0 Months Ended | 1 Months Ended | 58 Months Ended | 3 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2015 | Apr. 23, 2015 | May 08, 2015 | May 08, 2015 | Jun. 30, 2015 | Mar. 07, 2014 | Apr. 30, 2015 | Dec. 31, 2014 | Apr. 08, 2015 | Apr. 06, 2015 | Apr. 01, 2015
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.00 us-gaap_CommonStockDividendsPerShareDeclared | $ 0.00 us-gaap_CommonStockDividendsPerShareDeclared |  |  |  |  |  |  |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method | $ 35,000,000 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 0 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 1,300,000,000 us-gaap_TreasuryStockValueAcquiredCostMethod |  |  |  |  |  |  |  |  |  |
Treasury Stock, Shares, Acquired | 2,816,493 us-gaap_TreasuryStockSharesAcquired |  | 108,728,970 us-gaap_TreasuryStockSharesAcquired |  |  |  |  |  |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share |  |  | $ 12.37 us-gaap_TreasuryStockAcquiredAverageCostPerShare |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | 388,000,000 us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 |  | 388,000,000 us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 |  |  |  |  |  |  |  |  |  |
Gains (Losses) on Extinguishment of Debt | (23,000,000)us-gaap_GainsLossesOnExtinguishmentOfDebt | (134,000,000)us-gaap_GainsLossesOnExtinguishmentOfDebt |  |  |  |  |  |  |  |  |  |  |
Maritza [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Overdue Maritza Receivables | 236,000,000 aes_OverdueMaritzaReceivables / dei_LegalEntityAxis = aes_MaritzaMember |  | 236,000,000 aes_OverdueMaritzaReceivables / dei_LegalEntityAxis = aes_MaritzaMember |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared |  |  |  | $ 0.10 us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  | 7,000,000 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember | 1,400,000,000 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Treasury Stock, Shares, Acquired |  |  |  |  | 591,028 us-gaap_TreasuryStockSharesAcquired / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember | 109,319,998 us-gaap_TreasuryStockSharesAcquired / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share |  |  |  |  |  | $ 12.38 us-gaap_TreasuryStockAcquiredAverageCostPerShare / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  |  |  |  | 381,000,000 us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember | 381,000,000 us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Subsequent Event [Member] | Maritza [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Capacity Payment reduction percentage |  |  |  |  |  |  |  |  |  |  | 14.00%aes_CapacityPaymentreductionpercentage / dei_LegalEntityAxis = aes_MaritzaMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
Recourse Debt [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gains (Losses) on Extinguishment of Debt |  |  |  |  |  |  | 82,000,000 us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_ExtinguishmentOfDebtAxis = aes_RecourseDebtMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |
5.50% senior notes due 2025 [Domain] | Recourse Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issued new debt |  |  |  |  |  |  |  |  |  |  |  | 575,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = aes_A5.50seniornotesdue2025Domain / us-gaap_SubsequentEventTypeAxis = aes_RecourseDebtMember |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  | 5.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = aes_A5.50seniornotesdue2025Domain / us-gaap_SubsequentEventTypeAxis = aes_RecourseDebtMember |
8.0% Senior Notes Due 2017 [Member] | Recourse Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  | 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = aes_A8.0SeniorNotesDue2017Member / us-gaap_ExtinguishmentOfDebtAxis = aes_RecourseDebtMember |  |  |  |  |
Extinguishment of Debt, Amount |  |  |  |  |  |  |  | 625,000,000 us-gaap_ExtinguishmentOfDebtAmount / us-gaap_DebtInstrumentAxis = aes_A8.0SeniorNotesDue2017Member / us-gaap_ExtinguishmentOfDebtAxis = aes_RecourseDebtMember |  |  |  |  |
Gains (Losses) on Extinguishment of Debt |  |  |  |  |  |  |  | (132,000,000)us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_DebtInstrumentAxis = aes_A8.0SeniorNotesDue2017Member / us-gaap_ExtinguishmentOfDebtAxis = aes_RecourseDebtMember |  |  |  |  |
8.0% Senior Notes Due 2017 [Member] | Recourse Debt [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  | 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = aes_A8.0SeniorNotesDue2017Member / us-gaap_ExtinguishmentOfDebtAxis = aes_RecourseDebtMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Extinguishment of Debt, Amount |  |  |  |  |  |  |  |  | 344,000,000 us-gaap_ExtinguishmentOfDebtAmount / us-gaap_DebtInstrumentAxis = aes_A8.0SeniorNotesDue2017Member / us-gaap_ExtinguishmentOfDebtAxis = aes_RecourseDebtMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |
8.00% Senior Unsecured Note Due 2020 [Member] | Recourse Debt [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  | 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = aes_A8.00SeniorUnsecuredNoteDue2020Member / us-gaap_ExtinguishmentOfDebtAxis = aes_RecourseDebtMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Extinguishment of Debt, Amount |  |  |  |  |  |  |  |  | 156,000,000 us-gaap_ExtinguishmentOfDebtAmount / us-gaap_DebtInstrumentAxis = aes_A8.00SeniorUnsecuredNoteDue2020Member / us-gaap_ExtinguishmentOfDebtAxis = aes_RecourseDebtMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |
IPALCO Enterprises, Inc. [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
sales agreement, Buyer option to purchase ownership interest, exercised |  |  |  |  |  |  |  |  |  |  |  |  | 214,000,000 aes_SalesagreementBuyeroptiontopurchaseownershipinterestexercised / invest_InvestmentAxis = aes_IPALCOEnterprisesInc.Member / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  |  |  |  |  |  |  |  |  |  | 24.90%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / invest_InvestmentAxis = aes_IPALCOEnterprisesInc.Member / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
IPALCO Enterprises, Inc. [Member] | Subsequent Event [Member] | Acquire additional shares through 2016 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Sale Agreement, Buyer Option To Purchase Ownership Interest, Sales Price |  |  |  |  |  |  |  |  |  | $ 349,000,000 aes_SaleAgreementBuyerOptionToPurchaseOwnershipInterestSalesPrice / invest_InvestmentAxis = aes_IPALCOEnterprisesInc.Member / us-gaap_StatementScenarioAxis = aes_Acquireadditionalsharesthrough2016Member / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |

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- Definition Overdue Maritza Receivables + References No definition available. + Details
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- Definition Sale Agreement, Buyer Option To Purchase Ownership Interest, Sales Price + References No definition available. + Details
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- Definition sales agreement, Buyer option to purchase ownership interest, exercised + References No definition available. + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Gross amount of debt extinguished. + References No definition available. + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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- Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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- Details
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