Name:	bbt_RecognizedPretaxGainsOnMortgageLoansWithUnpaidPrincipalBalances
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents the weighted average servicing fee earned from servicing residential mortgage loans. The amount is presented as the percentage of fee income divided by the outstanding balances of the residential mortgage loans being serviced.

No definition available.

Name:	bbt_ResidentialMortgageLoansWeightedAverageServicingFeePercentage
Namespace Prefix:	bbt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Reflects the unpaid principal balances of residential mortgage loans sold to third-party investors during the period.

No definition available.

Name:	bbt_UnpaidPrincipalBalanceOfResidentialmortgageloanssold
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the weighted average interest rate on the portfolio of residential mortgage loans serviced for others.

No definition available.

Name:	bbt_WeightedAverageInterestRateServicedForOthers
Namespace Prefix:	bbt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Amount of revenue from servicing real estate mortgages, credit cards, and other financial assets held by others. Includes premiums received in lieu of regular servicing fees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.13 (d))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Name:	us-gaap_ServicingFeesNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.