Debt (Non-Recourse Debt Carrying Amounts and Terms) (Details) (USD $)	Dec. 31, 2013		Dec. 31, 2012
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.