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Debt (Non-Recourse Debt Carrying Amounts and Terms) (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012
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Debt Instrument [Line Items] |  |  |  |
Non Recourse Debt Total | $ 15,380,000,000 | [1] | $ 14,759,000,000 | [1]
Non-recourse Debt Current Maturities | (2,062,000,000) |  | (2,494,000,000) |
Non-recourse debt - noncurrent, balance at variable interest entities | 13,318,000,000 |  | 12,265,000,000 |
Derivative, notional amount | 3,600,000,000 |  |  |
Interest rate swap, fixed minimum interest rate | 4.09% |  |  |
Interest rate swap, fixed maximum interest rate | 8.98% |  |  |
Interest rate option, fixed minimum interest rate | 5.85% |  |  |
Interest rate option, fixed maximum interest rate | 8.75% |  |  |
Debt excluded from non-recourse debt and included in current and noncurrent liabilities of held for sale and discontinued businesses | 658,000,000 |  | 0 |
Variable Rate Debt | Bank loans |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted Average Interest Rate | 3.30% | [2] |  |
Non Recourse Debt Total | 2,783,000,000 | [2] | 3,556,000,000 | [2]
Variable Rate Debt | Notes and bonds |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted Average Interest Rate | 10.51% | [2] |  |
Non Recourse Debt Total | 1,845,000,000 | [2] | 1,887,000,000 | [2]
Variable Rate Debt | Debt to (or guaranteed by) multilateral, export credit agencies or development banks |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted Average Interest Rate | 2.46% | [2],[3] |  |
Non Recourse Debt Total | 2,446,000,000 | [2],[3] | 1,711,000,000 | [2],[3]
Variable Rate Debt | Other |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted Average Interest Rate | 4.62% | [2] |  |
Non Recourse Debt Total | 349,000,000 | [2] | 349,000,000 | [2]
Fixed Rate Debt | Bank loans |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted Average Interest Rate | 5.06% |  |  |
Non Recourse Debt Total | 477,000,000 |  | 209,000,000 |
Fixed Rate Debt | Notes and bonds |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted Average Interest Rate | 6.25% |  |  |
Non Recourse Debt Total | 7,164,000,000 |  | 6,448,000,000 |
Fixed Rate Debt | Debt to (or guaranteed by) multilateral, export credit agencies or development banks |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted Average Interest Rate | 4.65% | [3] |  |
Non Recourse Debt Total | 164,000,000 | [3] | 411,000,000 | [3]
Fixed Rate Debt | Other |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted Average Interest Rate | 6.55% |  |  |
Non Recourse Debt Total | $ 152,000,000 |  | $ 188,000,000 |
[1] | Non-recourse debt of $658 million as of December 31, 2013 was excluded from non-recourse debt and included in current and noncurrent liabilities of held for sale and discontinued businesses in the accompanying Consolidated Balance Sheets. There were no amounts excluded in 2012.
[2] | The interest rate on variable rate debt represents the total of a variable component that is based on changes in an interest rate index and of a fixed component. The Company has interest rate swaps and option agreements in an aggregate notional principal amount of approximately $3.6 billion on non-recourse debt outstanding at December 31, 2013. These agreements economically fix the variable component of the interest rates on the portion of the variable-rate debt being hedged so that the total interest rate on that debt has been fixed at rates ranging from approximately 4.09% to 8.98% and 5.85% to 8.75% for swaps and options, respectively. These agreements expire at various dates from 2014 through 2030.
[3] | Multilateral loans include loans funded and guaranteed by bilaterals, multilaterals, development banks and other similar institutions.

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