v2.4.0.6

Debt (Debt) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Debt Instrument [Line Items]
Long-term Debt	$ 10,750		$ 10,425
Debt, Current	115		104
Debt, net of current portion	10,635		10,321
Corporate Debt Securities [Member]
Debt Instrument [Line Items]
Long-term Debt	5,303	[1]	5,892	[1]
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term Debt	1,789	[1]	1,691	[1]
Loans Payable [Member]
Debt Instrument [Line Items]
Long-term Debt	2,463	[1]	1,646	[1]
Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	978		972
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 217		$ 224
[1] During the fourth quarter of 2012, we redeemed 10% of the aggregate principal amount of our First Lien Notes and repaid project debt with proceeds received from the issuance of our 2019 First Lien Term Loan.

X

- Definition

Carrying value as of the balance sheet date of the sum of short-term debt and current maturities of long-term debt and capital lease obligations, which are due within one year (or one business cycle if longer).

+ References

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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