XML 52 R13.htm IDEA: XBRL DOCUMENT v3.8.0.1

Net gains/(losses) on financial instruments classified as held for trading

12 Months Ended

Dec. 31, 2017

Net gains/(losses) on financial instruments classified as held for trading [Abstract]

Net gains/(losses) on financial instruments classified as held for trading

8. Net gains/(losses) on financial instruments classified as held for trading

	R$ thousand
	Years ended December 31
	2017	2016	2015
Fixed income securities	9,862,617	4,654,959	(5,174,739)
Derivative financial instruments	(1,426,160)	10,887,800	(4,267,748)
Equity securities	1,186,651	860,011	1,190,432
Total	9,623,108	16,402,770	(8,252,055)

X

- Definition

Net gains/(losses) on financial instruments classified as held for trading [Abstract].

+ References

No definition available.

+ Details

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

X

- Definition

Net gains/(losses) on financial instruments classified as held for trading.

+ References

No definition available.

+ Details

Name:	bbd_NetGainslossesOnFinancialInstrumentsClassifiedAsHeldForTradingTextBlock
Namespace Prefix:	bbd_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration