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Debt with Affiliated Companies (Details) (Affiliated Entity [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Affiliated Entity [Member]
Debt Instrument [Line Items]
Other short-term debt	$ 28	$ 48
Notes payable within one year	4	466
Notes payable after one year	340	91
Debt with affiliated companies	$ 372	$ 605

The amount for notes payable (written promise to pay), due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

The amount for notes payable (written promise to pay), due to related parties.

+ References+ Details

- Definition

The amount for notes payable (written promise to pay), payable to related parties, which are due after one year (or one business cycle).

+ References+ Details