LOANS AND LEASES (Details 1) (BRL) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Recorded Amount	14,256	14,165
Unpaid principal balance	871
Related Allowance for loan losses	454	737
Average book value	10,895	15,195
Recognized interest revenue	50
Businesses [Member]
Recorded Amount	884
Unpaid principal balance	871
Related Allowance for loan losses	454
Average book value	1,371
Recognized interest revenue	50
Businesses [Member] \| Loans Individually Reviewed [Member]
Recorded Amount	884
Unpaid principal balance	871
Related Allowance for loan losses	454
Average book value	1,371
Recognized interest revenue	50

The average recorded investment related to impaired financing receivables.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5212-111524
-Subparagraph (c)(1)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5258-111524

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The interest income recognized during the time within that period that the financing receivables were impaired.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The recorded investment related to impaired financing receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953550-111524
-Subparagraph (b)

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of allowance for credit losses related to recorded investment.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The unpaid principal balance related to impaired financing receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5212-111524

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant