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Fair Value (Tables) | 12 Months Ended
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Dec. 31, 2012
Fair Value Disclosure Tables [Abstract] |
Signficant unobservable inputs, recurring |
|  |  |  |  |  |  | Amount or Range
Type of Derivative |  | Fair Value |  | Unobservable Input |  | (Weighted Average)
|  | (in millions) |  |  |  |  |
Interest rate | $ | (412) |  | Subsidiaries' credit spreads |  | 2.6% - 9.8% (6.5%)
Foreign currency: |  |  |  |  |  |  |
| Embedded derivative - Argentine Peso |  | 69 |  | Argentine Peso to U.S. Dollar |  |
|  |  |  |  |  | currency exchange rate after 3 years |  | 10.5 - 15.4 (12.9)
Commodity & other: |  |  |  |  |  |  |
| Embedded derivative - Aluminum |  | (55) |  | Market price of power for |  |
|  |  |  |  |  | customer in Cameroon (per KWh) |  | $0.09 - $0.14 ($0.13)
| Other |  | 2 |  |  |  |  |
Total | $ | (396) |  |  |  |  |
Fair value hierarchy for recurring measurements table |
|  |  | Fair Value
|  |  |  | Total |  | Level 1 |  | Level 2 |  | Level 3
| (in millions)
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |
| Available-for-sale securities | $ | 681 |  | $ | - |  | $ | 681 |  | $ | -
| Trading securities |  | 12 |  |  | 12 |  |  | - |  |  | -
| Derivatives |  | 100 |  |  | - |  |  | 18 |  |  | 82
|  | Total assets | $ | 793 |  | $ | 12 |  | $ | 699 |  | $ | 82
Liabilities |  |  |  |  |  |  |  |  |  |  |
| Derivatives | $ | 657 |  | $ | - |  | $ | 179 |  | $ | 478
|  | Total liabilities | $ | 657 |  | $ | - |  | $ | 179 |  | $ | 478
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 |
|  |  |  | Year Ended December 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 |  |  | (2) |  |  | - |  |  | 25 |  |  | (11) |  |  | 12
|  | Included in other comprehensive income |  |  | (29) |  |  | 3 |  |  | - |  |  | - |  |  | (26)
|  | Included in regulatory (assets) liabilities |  |  | - |  |  | - |  |  | - |  |  | 9 |  |  | 9
| Settlements |  |  | 26 |  |  | 15 |  |  | (3) |  |  | (2) |  |  | 36
| Transfers of assets (liabilities) into Level 3 |  |  | (285) |  |  | - |  |  | - |  |  | - |  |  | (285)
| Transfers of (assets) liabilities out of Level 3 |  |  | 6 |  |  | - |  |  | - |  |  | - |  |  | 6
Balance at December 31 |  | $ | (412) |  | $ | - |  | $ | 73 |  | $ | (57) |  | $ | (396)
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 |  | $ | (1) |  | $ | - |  | $ | 22 |  | $ | (3) |  | $ | 18
|  |  |  | Year Ended December 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 |  |  | - |  |  | (4) |  |  | 32 |  |  | (71) |  |  | (43)
|  | Included in other comprehensive income |  |  | (13) |  |  | (37) |  |  | - |  |  | - |  |  | (50)
|  | Included in regulatory (assets) liabilities |  |  | - |  |  | - |  |  | - |  |  | 8 |  |  | 8
| Settlements |  |  | - |  |  | 13 |  |  | (3) |  |  | (8) |  |  | 2
| Transfers of assets (liabilities) into Level 3 |  |  | (117) |  |  | - |  |  | - |  |  | - |  |  | (117)
| Transfers of (assets) liabilities out of Level 3 |  |  | 3 |  |  | - |  |  | - |  |  | - |  |  | 3
Balance at December 31 |  | $ | (128) |  | $ | (18) |  | $ | 51 |  | $ | (53) |  | $ | (148)
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) |  | $ | 29 |  | $ | (71) |  | $ | (44)
Fair value hierarchy for nonrecurring measurements table |
|  | Year Ended December 31, 2012
|  |  |  | Carrying |  | Fair Value |  | Gross
|  | Amount |  | Level 1 |  | Level 2 |  | Level 3 |  | Loss
Assets |  | (in millions)
| Long-lived assets held and used:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Kelanitissa |  | $ | 29 |  | $ | - |  | $ | - |  | $ | 10 |  | $ | 19
|  | Wind projects |  |  | 21 |  |  | - |  |  | - |  |  | 0 |  |  | 21
| Long-lived assets held for sale:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Wind turbines |  |  | 45 |  |  | - |  |  | - |  |  | 25 |  |  | 20
|  | St. Patrick |  |  | 33 |  |  | - |  |  | 22 |  |  | - |  |  | 11
| Discontinued operations and held for sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | businesses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Tisza II |  |  | 105 |  |  | - |  |  | 14 |  |  | - |  |  | 91
| Equity method investments(2) |  |  | 205 |  |  | - |  |  | 155 |  |  | - |  |  | 50
| Goodwill: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | DP&L reporting unit(3) |  |  | 2,440 |  |  | - |  |  | - |  |  | 623 |  |  | 1,817
|  | Year Ended December 31, 2011
|  |  |  | Carrying |  | Fair Value |  | Gross
|  | Amount |  | Level 1 |  | Level 2 |  | Level 3 |  | Loss
Assets |  | (in millions)
| Long-lived assets held and used:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Kelanitissa |  | $ | 66 |  | $ | - |  | $ | - |  | $ | 24 |  | $ | 42
|  | Bohemia |  |  | 14 |  |  | - |  |  | 5 |  |  | - |  |  | 9
| Long-lived assets held for sale:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Wind turbines and deposits |  |  | 161 |  |  | - |  |  | 45 |  |  | - |  |  | 116
| Discontinued operations and held for sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | businesses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Edelap, Edes and Central Dique |  |  | 350 |  |  | - |  |  | 4 |  |  | - |  |  | 346
|  | Tisza II |  |  | 94 |  |  | - |  |  | - |  |  | 42 |  |  | 52
|  | Carbon Reduction Projects |  |  | 49 |  |  | - |  |  | - |  |  | - |  |  | 40 (4)
|  | Wind projects |  |  | 22 |  |  | - |  |  | - |  |  | 0 |  |  | 22
|  | Borsod(2) |  |  | (9) |  |  | - |  |  | - |  |  | - |  |  | -
|  | Eastern Energy(2) |  |  | (123) |  |  | - |  |  | - |  |  | - |  |  | -
|  | Thames(2) |  |  | (7) |  |  | - |  |  | - |  |  | - |  |  | -
|  | Brazil Telecom business |  |  | 142 |  |  | - |  |  | 893 |  |  | - |  |  | (751)
| Equity method investments:(2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Yangcheng |  |  | 100 |  |  | - |  |  | - |  |  | 26 |  |  | 74
| Goodwill: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Chigen(3) |  |  | 17 |  |  | - |  |  | - |  |  | 0 |  |  | 17
Financial instruments not measured at fair value in the condensed consolidated balance sheets |
|  |  | Carrying |  | Fair Value
December 31, 2012 | Amount |  |  | Total |  | Level 1 |  | Level 2 |  | Level 3
| (in millions)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Accounts receivable - noncurrent(1) | $ | 359 |  | $ | 243 |  | $ | - |  | $ | - |  | $ | 243
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-recourse debt |  | 15,411 |  |  | 16,138 |  |  | - |  |  | 13,839 |  |  | 2,299
| Recourse debt |  | 5,962 |  |  | 6,628 |  |  | - |  |  | 6,628 |  |  | -
December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Accounts receivable - noncurrent(1) | $ | 376 |  | $ | 359 |  |  |  |  |  |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Non-recourse debt |  | 15,535 |  |  | 15,862 |  |  |  |  |  |  |  |  |
| Recourse debt |  | 6,485 |  |  | 6,640 |  |  |  |  |  |  |  |  |
Significant unobservable inputs, nonrecurring |
|  |  |  | Valuation |  |  |  |
| Fair Value |  | Technique |  | Unobservable Input |  | Range (Weighted Average)
|  | (in millions) |  |  |  |  |  | ($ in millions)
Long-lived assets held and used: |  |  |  |  |  |  |  |
| Kelanitissa | $ | 10 |  | Discounted |  |  |  |
|  |  |  |  | cash flow |  | Annual revenue growth |  | -9% to 4% (-1%)
|  |  |  |  |  |  | Annual pretax operating margin |  | -4% to 16% (-1%)
|  |  |  |  |  |  | Weighted average cost of capital |  | 11.9%
Long-lived assets held for sale: |  |  |  |  |  |  |  |
| Wind turbines |  | 25 |  | Market |  |  |  |
|  |  |  |  | Approach |  | Indicative offer prices | $ | 12 to 38 (25)
Total | $ | 35 |  |  |  |  |  |

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- 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
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- 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
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- Definition Tabular disclosure summarizing the unobservable inputs used to value level 3 nonrecurring measurements. + References No definition available. + Details
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- Definition Tabular disclosure summarizing the unobservable inputs used to measure Level 3 financial instruments. + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + 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 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19296-110258 + Details
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- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 + Details
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