Shareholders' Equity (Equity-Based Compensation Plans) (Details) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013 Yr
Equity-Based Compensation Plans [Abstract]
Shares available for future grant	30,562
Vesting period, awards granted prior to 2010	5.0
Vesting period, awards granted after 2009, minimum	3.0
Vesting period, awards granted after 2009, maximum	5.0
Option term (in years)	10.0

Name:	bbt_EquityBasedCompensationPlansAbstract
Namespace Prefix:	bbt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Share based compensation arrangement by share based payment award options term years

+ References

No definition available.

+ Details

Name:	bbt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsTermYears
Namespace Prefix:	bbt_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Share based compensation arrangement by share based payment award stock option vesting period minimum years

+ References

No definition available.

+ Details

Name:	bbt_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockOptionVestingPeriodMaximumYears
Namespace Prefix:	bbt_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Share Based Compensation Arrangement By Share Based Payment Award Stock Option Vesting Period Maximum Years

+ References

No definition available.

+ Details

Name:	bbt_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockOptionVestingPeriodMaximumYearsBefore2010
Namespace Prefix:	bbt_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

Name:	bbt_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockOptionVestingPeriodMinimumYears
Namespace Prefix:	bbt_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant