XML 258 R219.htm IDEA: XBRL DOCUMENT v3.8.0.1

Equity (Details 1) - shares	Dec. 31, 2017	Dec. 31, 2016	[1]	Dec. 31, 2015	[1]
Composition of share capital in number of shares
Subtotal	6,108,961,905	6,108,961,905
Number of shares outstanding on	6,085,073,610	6,085,073,610		6,085,665,540
Common shares
Composition of share capital in number of shares
Subtotal	3,054,481,112	3,054,481,112
Number of shares outstanding on	3,049,448,563	3,049,448,563		3,050,040,493
Preferred shares
Composition of share capital in number of shares
Subtotal	3,054,480,793	3,054,480,793
Number of shares outstanding on	3,035,625,047	3,035,625,047		3,035,625,047
Treasury (common shares)
Composition of share capital in number of shares
Number of shares outstanding on	(5,032,549)	(5,032,549)
Treasury (preferred shares)
Composition of share capital in number of shares
Number of shares outstanding on	(18,855,746)	(18,855,746)
[1] All share amounts presented for prior periods have been adjusted to reflect the stock split approved at the Board of Directors' Meeting of March 10, 2017 in proportion of one new share for every 10 shares held.

X

- Definition

Composition of share capital in number of shares

+ References

No definition available.

+ Details

Name:	bbd_CompositionOfShareCapitalInNumberOfSharesAbstract
Namespace Prefix:	bbd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of shares issued by the entity, for which full payment has been received.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 79
-Subparagraph a
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_79_a_ii&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_NumberOfSharesIssuedAndFullyPaid
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 79
-Subparagraph a
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_79_a_iv&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_NumberOfSharesOutstanding
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_PreferenceSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=bbd_TreasuryCommonSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=bbd_TreasuryPreferredSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: