Account receivable (Tables)

12 Months Ended

Dec. 31, 2012

Account receivable

Schedule of accounts receivable

	As of December 31,
	2012	2011
Customers
Denominated in Brazilian Reais	849	1,228
Denominated in other currencies, mainly US dollars	6,060	7,382
	6,909	8,610
Allowance for doubtful accounts	(114)	(105)
Total	6,795	8,505