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Acquisitions and Dispositions (Tables) | 12 Months Ended
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Dec. 31, 2011
Acquisitions And Dispositions Tables [Abstract] |
Schedule Of Business Acquisitions By Acquisition Fair Value Consideration [Table Text Block] |
| Agreed enterprise value |  | $ | 4,719
|  | Less: fair value of assumed long-term debt outstanding, net |  |  | (1,255)
| Cash consideration paid to DPL's common stockholders |  |  | 3,464
|  | Add: cash paid for outstanding stock-based awards |  |  | 19
| Total cash consideration paid |  | $ | 3,483
Schedule of Purchase Price Allocation [Table Text Block] |
| Cash |  | $ | 116
| Accounts receivable |  |  | 278
| Inventory |  |  | 124
| Other current assets |  |  | 41
| Property, plant and equipment |  |  | 2,549
| Intangible assets subject to amortization |  |  | 166
| Intangible assets - indefinite-lived |  |  | 5
| Regulatory assets |  |  | 201
| Other noncurrent assets |  |  | 58
| Current liabilities |  |  | (401)
| Non-recourse debt |  |  | (1,255)
| Deferred taxes |  |  | (558)
| Regulatory liabilities |  |  | (117)
| Other noncurrent liabilities |  |  | (195)
| Redeemable preferred stock |  |  | (18)
|  | Net identifiable assets acquired |  |  | 994
| Goodwill |  |  | 2,489
|  | Net assets acquired |  | $ | 3,483
Business Acquisition, Pro Forma Information [Table Text Block] |
|  |  |  |  | Net Income (Loss)
|  |  |  |  | Attributable to The
|  |  | Revenue |  | AES Corporation
|  |  | (in millions)
| Actual from November 28, 2011 - December 31, 2011 |  | $ | 154 |  | $ | (6)
| Pro forma for 2011 (unaudited) |  | $ | 18,945 |  | $ | 116
| Pro forma for 2010 (unaudited) |  | $ | 17,659 |  | $ | 101

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 54 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 55 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph r(2, 3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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