XML 35 R30.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Fair Value (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2012
Fair Value Disclosure Tables [Abstract] |
Signficant unobservable inputs |
|  |  |  |  |  |  | Amount or Range
| Fair Value |  | Unobservable Input |  | (Weighted Average)
|  | (in millions) |  |  |  |  |
Interest rate | $ | (124) |  | Own credit risk |  | 3.3% - 4.1% (3.5%)
Foreign currency: |  |  |  |  |  |  |
| Embedded derivative - Argentine Peso |  | 48 |  | Argentine Peso to U.S. Dollar |  |
|  |  |  |  |  | currency exchange rate after 2 years |  | 6.13
| Other |  | - |  |  |  |  |
Commodity & other: |  |  |  |  |  |  |
| Embedded derivative - Aluminum |  | (54) |  | Market price of power for |  |
|  |  |  |  |  | customer in Cameroon (per KWh) |  | $0.06 - $0.18 ($0.13)
| Embedded derivative - Philippine Peso |  | 10 |  | U.S. Producer Price Index after 5 years |  |
|  |  |  |  |  | (where base year of 2005 = 100) |  | 143 - 174 (157)
| Other |  | (2) |  |  |  |  |
Total | $ | (122) |  |  |  |  |
Fair value hierarchy for recurring measurements table |
|  |  | Fair Value
|  |  |  | Total |  | Level 1 |  | Level 2 |  | Level 3
| (in millions)
March 31, 2012 |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |
| Available-for-sale securities | $ | 1,717 |  | $ | 2 |  | $ | 1,715 |  | $ | -
| Trading securities |  | 12 |  |  | 12 |  |  | - |  |  | -
| Derivatives |  | 109 |  |  | 2 |  |  | 41 |  |  | 66
|  | Total assets | $ | 1,838 |  | $ | 16 |  | $ | 1,756 |  | $ | 66
Liabilities |  |  |  |  |  |  |  |  |  |  |
| Derivatives | $ | 648 |  | $ | - |  | $ | 460 |  | $ | 188
|  | Total liabilities | $ | 648 |  | $ | - |  | $ | 460 |  | $ | 188
December 31, 2011 |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |
| Available-for-sale securities | $ | 1,340 |  | $ | 1 |  | $ | 1,339 |  | $ | -
| Trading securities |  | 12 |  |  | 12 |  |  | - |  |  | -
| Derivatives |  | 120 |  |  | 2 |  |  | 52 |  |  | 66
|  | Total assets | $ | 1,472 |  | $ | 15 |  | $ | 1,391 |  | $ | 66
Liabilities |  |  |  |  |  |  |  |  |  |  |
| Derivatives | $ | 690 |  | $ | - |  | $ | 476 |  | $ | 214
|  | Total liabilities | $ | 690 |  | $ | - |  | $ | 476 |  | $ | 214
Derivatives Level 3 Rollforward Table |
|  |  |  | Three Months Ended March 31, 2012
|  |  |  | Interest |  | Cross |  | Foreign |  | Commodity |  |
|  |  |  | Rate |  | Currency |  | Currency |  | and Other |  | Total
|  |  | (in millions)
Balance at January 1 |  | $ | (128) |  | $ | (18) |  | $ | 51 |  | $ | (53) |  | $ | (148)
| Total gains (losses) (realized and unrealized): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Included in earnings (1) |  |  | (1) |  |  | - |  |  | (2) |  |  | 8 |  |  | 5
|  | Included in other comprehensive income |  |  | 1 |  |  | 14 |  |  | - |  |  | - |  |  | 15
|  | Included in regulatory (assets) liabilities |  |  | - |  |  | - |  |  | - |  |  | - |  |  | -
| Settlements |  |  | 6 |  |  | 4 |  |  | (1) |  |  | (1) |  |  | 8
| Transfers of assets (liabilities) into Level 3 (2) |  |  | (28) |  |  | - |  |  | - |  |  | - |  |  | (28)
| Transfers of (assets) liabilities out of Level 3 (2) |  |  | 26 |  |  | - |  |  | - |  |  | - |  |  | 26
Balance at March 31 |  | $ | (124) |  | $ | - |  | $ | 48 |  | $ | (46) |  | $ | (122)
Total gains/(losses) for the period included in earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| attributable to the change in unrealized gains/(losses) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| relating to assets and liabilities held at the end of the |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| period |  | $ | - |  | $ | - |  | $ | (3) |  | $ | 9 |  | $ | 6
|  |  |  | Three Months Ended March 31, 2011
|  |  |  | Interest |  | Cross |  | Foreign |  | Commodity |  |
|  |  |  | Rate |  | Currency |  | Currency |  | and Other |  | Total
|  |  | (in millions)
Balance at January 1 |  | $ | (1) |  | $ | 10 |  | $ | 22 |  | $ | 18 |  | $ | 49
| Total gains (losses) (realized and unrealized): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Included in earnings (1) |  |  | - |  |  | 2 |  |  | 1 |  |  | 8 |  |  | 11
|  | Included in other comprehensive income |  |  | (4) |  |  | (8) |  |  | - |  |  | - |  |  | (12)
|  | Included in regulatory (assets) liabilities |  |  | - |  |  | - |  |  | - |  |  | (1) |  |  | (1)
| Settlements |  |  | - |  |  | 1 |  |  | 1 |  |  | - |  |  | 2
| Transfers of assets (liabilities) into Level 3 (2) |  |  | (2) |  |  | - |  |  | (1) |  |  | (1) |  |  | (4)
Balance at March 31 |  | $ | (7) |  | $ | 5 |  | $ | 23 |  | $ | 24 |  | $ | 45
Total gains/(losses) for the period included in earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| attributable to the change in unrealized gains/(losses) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| relating to assets and liabilities held at the end of the |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| period |  | $ | - |  | $ | 2 |  | $ | - |  | $ | 8 |  | $ | 10
|  |  |  | Three Months
|  |  |  | Ended March 31,
|  |  |  | 2012 |  | 2011
|  |  | (in millions)
Balance at beginning of period |  | $ | - |  | $ | 42
| Settlements |  |  | - |  |  | (2)
Balance at March 31 |  | $ | - |  | $ | 40
Total gains/(losses) for the period included in |  |  |  |  |  |
| earnings attributable to the change in unrealized |  |  |  |  |  |
| gains/losses relating to assets held at the |  |  |  |  |  |
| end of the period |  | $ | - |  | $ | -
Fair value hierarchy for nonrecurring measurements table |
|  |  |  | Carrying |  | Fair Value |  | Gross
March 31, 2012 |  | Amount |  | Level 1 |  | Level 2 |  | Level 3 |  | Loss
Assets |  | in million
| Long-lived assets held and used:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Kelanitissa |  | $ | 22 |  | $ | - |  | $ | - |  | $ | 17 |  | $ | 5
| Equity method investments:(2) |  |  | 204 |  |  | - |  |  | 155 |  |  | - |  |  | 49
Financial instruments not measured at fair value in the condensed consolidated balance sheets |
|  |  | Carrying |  | Fair Value
March 31, 2012 | Amount |  |  | Total |  | Level 1 |  | Level 2 |  | Level 3
| (in millions)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Trade receivables | $ | 408 |  | $ | 454 |  | $ | - |  | $ | - |  | $ | 454
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-recourse debt |  | 16,035 |  |  | 16,369 |  |  | - |  |  | 15,339 |  |  | 1,030
| Recourse debt |  | 6,200 |  |  | 6,809 |  |  | - |  |  | 6,809 |  |  |
December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Trade receivables | $ | 386 |  | $ | 401 |  |  |  |  |  |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-recourse debt |  | 15,535 |  |  | 15,862 |  |  |  |  |  |  |  |  |
| Recourse debt |  | 6,485 |  |  | 6,640 |  |  |  |  |  |  |  |  |

X
- Definition This element represents, for the fair value measurement of derivative assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) + References No definition available. + Details
Name: | aes_FairValueDerivativeAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix: | aes_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | aes_FairValueDisclosureTablesAbstract
Namespace Prefix: | aes_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the financial instruments not carried on the balance sheet at fair value by class and level of within the fair value hierarchy. + References No definition available. + Details
Name: | aes_FairValueOfFinancialInstrumentsNotCarriedAtFairValueTableTextBlock
Namespace Prefix: | aes_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure summarizing the unobservable inputs used to measure Level 3 financial instruments. + References No definition available. + Details
Name: | aes_FairValueScheduleOfUnobservableInputsTableTextBlock
Namespace Prefix: | aes_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities by class, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). The disclosures that may be required or desired include: (a) the fair value measurements recorded during the period and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -Subparagraph a, b -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 820 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258 + Details
Name: | us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration