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Derivative Instruments and Hedging Activities (Tables) | 3 Months Ended
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Mar. 31, 2013
Derivative Instruments And Hedging Activities Tables [Abstract] |
Interest Rate Derivatives By Type Table |
|  |  | March 31, 2013
|  |  | Current |  | Maximum |  |  |  |
|  |  |  |  | Derivative |  |  |  | Derivative |  | Weighted |  | % of Debt
|  |  |  |  | Notional |  |  |  | Notional |  | Average |  | Currently
|  |  | Derivative |  | Translated |  | Derivative |  | Translated |  | Remaining |  | Hedged
Interest Rate and Cross Currency |  | Notional |  | to USD |  | Notional |  | to USD |  | Term |  | by Index(2)
|  |  | (in millions) |  | (in years) |  |
Interest Rate Derivatives:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR (U.S. Dollar) |  | 3,451 |  | $ | 3,451 |  | 4,226 |  | $ | 4,226 |  | 9 |  | 70%
EURIBOR (Euro) |  | 605 |  |  | 776 |  | 605 |  |  | 776 |  | 9 |  | 67%
LIBOR (British Pound) |  | 69 |  |  | 105 |  | 69 |  |  | 105 |  | 13 |  | 83%
Cross Currency Swaps: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chilean Unidad de Fomento |  | 6 |  |  | 271 |  | 6 |  |  | 271 |  | 9 |  | 85%
Foreign Currency Derivatives By Type Table |
|  |  | March 31, 2013
|  |  |  |  |  |  |  | Weighted
|  |  |  |  | Notional |  | Average
|  |  |  |  | Translated |  | Remaining
Foreign Currency Derivatives |  | Notional(1) |  | to USD |  | Term(2)
|  |  | (in millions) |  | (in years)
Foreign Currency Options and Forwards: |  |  |  |  |  |  |
Chilean Peso |  | 80,558 |  | $ | 166 |  | <1
Brazilian Real |  | 240 |  |  | 118 |  | <1
Euro |  | 29 |  |  | 41 |  | <1
Colombian Peso |  | 53,208 |  |  | 28 |  | <1
Argentine Peso |  | 83 |  |  | 14 |  | <1
British Pound |  | 3 |  |  | 5 |  | <1
Embedded Foreign Currency Derivatives |  |  |  |  |  |  |
Argentine Peso |  | 829 |  |  | 169 |  | 11
Kazakhstani Tenge |  | 1,009 |  |  | 7 |  | 5
Euro |  | 2 |  |  | 2 |  | 10
Commodity Derivatives By Type Table |
|  |  | March 31, 2013 |
|  |  |  |  | Weighted Average |
| Commodity Derivatives |  | Notional |  | Remaining Term(1) |
|  |  | (in millions) |  | (in years) |
| Aluminum (MWh)(2) |  | 14 |  | 7 |
| Power (MWh) |  | 6 |  | 3 |
Derivative Assets Liabilities At Fair Value Net By Balance Sheet Classification And Type Table |
|  |  |  | March 31, 2013 |  | December 31, 2012
|  |  |  | Designated |  | Not Designated |  | Total |  | Designated |  | Not Designated |  | Total
|  |  |  | (in millions) |  | (in millions)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Interest rate derivatives |  | $ | - |  | $ | 2 |  | $ | 2 |  | $ | - |  | $ | 2 |  |  | 2
| Cross currency derivatives |  |  | 8 |  |  | - |  |  | 8 |  |  | 6 |  |  | - |  |  | 6
| Foreign currency derivatives |  |  | 1 |  |  | 87 |  |  | 88 |  |  | - |  |  | 81 |  |  | 81
| Commodity derivatives |  |  | - |  |  | 7 |  |  | 7 |  |  | 2 |  |  | 9 |  |  | 11
|  | Total assets |  | $ | 9 |  | $ | 96 |  | $ | 105 |  | $ | 8 |  | $ | 92 |  | $ | 100
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Interest rate derivatives |  | $ | 523 |  | $ | 18 |  | $ | 541 |  | $ | 544 |  | $ | 21 |  |  | 565
| Cross currency derivatives |  |  | 3 |  |  | - |  |  | 3 |  |  | 6 |  |  | - |  |  | 6
| Foreign currency derivatives |  |  | 7 |  |  | 11 |  |  | 18 |  |  | 7 |  |  | 7 |  |  | 14
| Commodity derivatives |  |  | 11 |  |  | 82 |  |  | 93 |  |  | 8 |  |  | 64 |  |  | 72
|  | Total liabilities |  | $ | 544 |  | $ | 111 |  | $ | 655 |  | $ | 565 |  | $ | 92 |  | $ | 657
|  |  | March 31, 2013 |  | December 31, 2012
|  |  | Assets |  | Liabilities |  | Assets |  | Liabilities
|  |  | (in millions) |  | (in millions)
Current |  | $ | 18 |  | $ | 175 |  | $ | 14 |  | $ | 186
Noncurrent |  |  | 87 |  |  | 480 |  |  | 86 |  |  | 471
| Total |  | $ | 105 |  | $ | 655 |  | $ | 100 |  | $ | 657
Derivatives subject to master netting agreement or similar agreement: |  |  |  |  |  |  |  |  |  |  |  |
| Gross (which equals net) amounts recognized in the balance sheet |  | $ | 19 |  | $ | 520 |  | $ | 25 |  | $ | 522
| Gross amounts of derivative instruments not offset |  |  | (8) |  |  | (8) |  |  | (9) |  |  | (9)
| Gross amounts of cash collateral received/pledged not offset |  |  | - |  |  | (14) |  |  | - |  |  | (5)
| Net amount |  | $ | 11 |  | $ | 498 |  | $ | 16 |  | $ | 508
Other balances that had been, but no longer need to be, accounted |  |  |  |  |  |  |  |  |  |  |  |
| for as derivatives at fair value that are to be amortized to earnings |  |  |  |  |  |  |  |  |  |  |  |
| over the remaining term of the associated PPA |  | $ | 181 |  | $ | 191 |  | $ | 186 |  | $ | 191
Gain Loss In Accumulated Other Comprehensive Income And Earnings On Effective Portion Of Qualifying Cash Flow Hedges Table |
|  |  | Gains (Losses) |  | Classification in |  | Gains (Losses) Reclassified
|  |  | Recognized in AOCL |  | Condensed Consolidated |  | from AOCL into Earnings
Type of Derivative |  | 2013 |  | 2012 |  | Statements of Operations |  | 2013 |  | 2012
|  |  | (in millions) |  |  |  |  | (in millions)
Interest rate derivatives |  | $ | (13) |  | $ | 11 |  | Interest expense |  | $ | (32) |  | $ | (32)
|  |  |  |  |  |  |  |  | Non-regulated cost of sales |  |  | (1) |  |  | (2)
|  |  |  |  |  |  |  |  | Net equity in earnings of |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  | affiliates |  |  | (2) |  |  | (1)
|  |  |  |  |  |  |  |  | Gain on sale of investments |  |  | - |  |  | (92)
Cross currency derivatives |  |  | 1 |  |  | 14 |  | Interest expense |  |  | (3) |  |  | (3)
|  |  |  |  |  |  |  |  | Foreign currency transaction |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  | gains (losses) |  |  | 5 |  |  | 18
Foreign currency derivatives |  |  | 1 |  |  | 6 |  | Foreign currency transaction |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  | gains (losses) |  |  | 2 |  |  | -
Commodity derivatives |  |  | (5) |  |  | (6) |  | Non-regulated revenue |  |  | - |  |  | (2)
Total |  | $ | (16) |  | $ | 25 |  |  |  |  | $ | (31) |  | $ | (114)
Gain Loss In Earnings On Ineffective Portion Of Qualifying Cash Flow Hedges Table |
|  |  | Classification in Condensed |  | Gains (Losses)
|  |  | Consolidated Statements |  | Recognized in Earnings
Type of Derivative |  | of Operations |  | 2013 |  | 2012
|  |  |  |  |  | (in millions)
Interest rate derivatives |  | Interest expense |  | $ | (1) |  | $ | (1)
Total |  |  |  |  | $ | (1) |  | $ | (1)
Gain Loss In Earnings On Non Hedging Instruments Table |
|  |  | Classification |  | Gains (Losses)
|  |  | in Condensed Consolidated |  | Recognized in Earnings
Type of Derivative |  | Statements of Operations |  | 2013 |  | 2012
|  |  |  |  |  | (in millions)
Interest rate derivatives |  | Interest expense |  | $ | 1 |  | $ | (2)
|  |  | Net equity in earnings of affiliates |  |  | (6) |  |  | -
Foreign currency derivatives |  | Foreign currency transaction gains (losses) |  |  | 6 |  |  | (38)
|  |  | Net equity in earnings of affiliates |  |  | (3) |  |  | -
Commodity and other derivatives |  | Non-regulated revenue |  |  | (21) |  |  | 14
|  |  | Regulated revenue |  |  | (3) |  |  | (4)
|  |  | Non-regulated cost of sales |  |  | 1 |  |  | 3
|  |  | Regulated cost of sales |  |  | - |  |  | (4)
Total |  |  |  |  | $ | (25) |  | $ | (31)

X
- Definition This element represents a table which sets forth, by type of commodity, the outstanding notionals and weighted average remaining terms of the commodity derivatives, regardless of whether they are in a qualifying hedging relationship. + References No definition available. + Details
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- Definition This element represents a table which sets for, by type of foreign currency denomination, the outstanding notionals over the remaining terms of the foreign currency derivative instruments at the balance sheet date, regardless of whether the derivative instruments are in qualifying hedging relationships. + References No definition available. + Details
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- Definition This element represents tables which set forth, by type of derivative instrument, the gains (losses) recognized in accumulated other comprehensive income (loss) and earnings and the income statement classification related to the effective portion of derivative instruments in qualifying cash flow hedging relationships for the periods indicated. + References No definition available. + Details
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- Definition This element represents tables which set forth, by type of derivative instrument, the gains (losses) recognized in earnings and the income statement classification related to the ineffective portion of derivative instruments in qualifying cash flow hedging relationships for the periods indicated. + References No definition available. + Details
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- Definition This element represents tables which set forth, by type of derivative instrument, the gains (losses) recognized in earnings and the income statement classification related to derivative instruments not designated as hedging instruments for the periods indicated. + References No definition available. + Details
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- Definition This element represents a table which sets forth, by type of interest rate derivative, the current and maximum outstanding notional, weighted average remaining term and percentage of variable-rate debt hedged at the balance sheet date, regardless of whether the derivative instruments are in qualifying cash flow hedging relationships. + References No definition available. + Details
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