Name:	bbt_CoveredMortgageLoans
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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

Residential mortgage loans securitized and transferred to securities available for sale.

No definition available.

Name:	bbt_LoansSecuritizedAndTransferredToSecuritiesAvailableForSale
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the total exposure to the Registrant from residential mortgage loans sold with recourse liability.

No definition available.

Name:	bbt_MaximumRecourseExposureOnResidentialMortgageLoansSold
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the cumulative portion of residential mortgage loans that have been charged-off through the allowance for loan losses during the period. Charge-offs represent the portion of loan carrying amounts that are deemed uncollectible and are not expected to be recovered.

No definition available.

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

Mortgage Loans On Nonaccrual Status

No definition available.

Name:	bbt_MortgageLoansOnNonaccrualStatus
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Difference between the sale price and the carrying value when a financial asset transferred in a securitization or asset-backing financing arrangement is accounted for as a sale.

No definition available.

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

Represents the reserve recorded on the Registrant's books for expected losses related to residential mortgage loans sold with recourse.

No definition available.

Name:	bbt_ReserveForResidentialMortgageLoansSoldWithRecourse
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Reserves related to potential losses resulting from repurchases of mortgage loans sold to government-sponsored entities

No definition available.

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

Represents total residential mortgage loans managed or securitized, excluding loans serviced for others with no other continuing involvement. This balance represents the sum of residential mortgage loans held for investment on the balance sheet plus mortgage loans sold with recourse, plus mortgage loans purchased that are covered by FDIC loss sharing agreements, plus residential mortgage loans held for sale, plus loans securitized and transferred to securities available for sale.

No definition available.

Name:	bbt_ResidentialMortgageLoansManagedOrSecuritized
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Reflects the carrying amount of residential mortgage loans past due ninety days or more on which interest is continuing to be earned or accrued.

No definition available.

Name:	bbt_ResidentialMortgageLoansReceivablePastDueOver90DaysStillAccruingInterest
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_ResidentialMortgageLoansSold
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the carrying amount of residential mortgage loans sold with recourse.

No definition available.

Name:	bbt_ResidentialMortgageLoansSoldWithRecourse
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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

Represents the unpaid principal balance of total residential mortgage servicing portfolio. This includes the unpaid principal balances held for investment included on the balance sheet as well as the portion serviced for others representing the balances sold to third-party investors.

No definition available.

Name:	bbt_TotalResidentialMortgageServicingPortfolio
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the unpaid principal balance of residential mortgage loans serviced for others that were previously sold to third-party investors.

No definition available.

Name:	bbt_UnpaidPrincipalBalancesOfResidentialMortgageLoansServicedForOthers
Namespace Prefix:	bbt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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

No definition available.

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

The total gross amount of money lent to individual customers including construction financing, residential mortgage loans, and home equity lines of credit.

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

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Chapter 8

-Paragraph 40-43

-IssueDate 2006-05-01

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a)(2),(3),(b))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 9

-Section 03

-Paragraph 7

-Subparagraph a, b

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Chapter V

-Section 563c.102

-Subsection I

-Paragraph 8

-Subparagraph c(i)

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Name:	us-gaap_LoansAndLeasesReceivableConsumerRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Carrying amount of mortgage loans to individuals not classified as held for investment but are held-for-sale.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6490309&loc=d3e48678-111004

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a)(3))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Chapter V

-Section 563c.102

-Subsection I

-Paragraph 8

-Subparagraph h

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Permanent Investor

-URI http://asc.fasb.org/extlink&oid=6520390

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 65

-Paragraph 1, 34

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522

Name:	us-gaap_LoansHeldForSaleMortgages
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Income from servicing real estate mortgages, credit cards, and other financial assets held by others. Also include any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans. May also be net of any related impairment of fair value of capitalized service costs.

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

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Chapter V

-Section 563c.102

-Paragraph 13

-Subsection II

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 13

-Article 9

Reference 3: 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