SHARE BASED COMPENSATION (Details Texuals) (BRL) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of dividend rate estimated	0.50%
Deferred Compensation Liability	525	618
Proceeds from Stock Options Exercised	268	278	107
Share-based Compensation	198	618	(181)
Proceeds from acquisition of share-based instruments	62	0	0
Simple Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of dividend rate estimated	3.13%	3.02%	3.50%
Deferred Compensation Liability	525	618
Stock or Unit Option Plan Expense	138	595	(181)
Compensation Cost to be Allocated in Future Periods	317
Weighted Average Allocation Period of Compensation Cost	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	257	301	248
Proceeds from Stock Options Exercised	107	278	268
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	200
Weighted average grant date fair value for shares granted	11.88	18.63	10.40
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate	30.23%	30.52%	24.67%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	5.95%	6.40%	6.78%
Simple Stock Options [Member] \| Prior Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Basis of Calculation of Stock Exercise Price			20
Simple Stock Options [Member] \| Post Acquisition Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Basis of Calculation of Stock Exercise Price			20
Partners Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Cost to be Allocated in Future Periods	264
Weighted Average Allocation Period of Compensation Cost	5 years
Weighted average grant date fair value for shares granted	35.01	18.08
Partners Plan [Member] \| Share Based Instruments [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	60	23
Share Based Instruments [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value for shares granted	0
Proceeds from acquisition of share-based instruments	0

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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