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LONG-TERM RECEIVABLES (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Receivables [Abstract]
Income taxes	$ 339	$ 295
Loan to DRC public electric utility	149	138
Disputed tax assessments (refer to Note 13)	148	109
Loan with La Generale des Carrieres et des Mines (related party)	32	30
Other	101	103
Total long-term receivables	$ 769	$ 675

Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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- Definition

Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle).

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