Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Billions, unless otherwise specified	Dec. 31, 2014
Significant Accounting Policies
Tender Option Bond Assets	$ 1.9bbt_TenderOptionBondAssets
Tender Option Bond Liabilities	1.7bbt_TenderOptionBondLiabilities
Stated Threshold	$ 5.0bbt_StatedThreshold
Loss sharing percentage on losses up to the stated threshold on assets subject to the stated threshold	80.00%
Loss sharing percentage on losses in excess of the stated threshold on assets subject to the stated threshold	95.00%
Loss sharing percentage on certain non-agency mortgage backed securities not subject to stated threshold	95.00%bbt_LossSharingPercentageOnNonAgencyMbs

Loss sharing percentage on losses in excess of the stated threshold on assets subject to the stated threshold

No definition available.

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Loss sharing percentage on losses up to the stated threshold on assets subject to the stated threshold

No definition available.

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Loss sharing percentage on certain non-agency mortgage backed securities not subject to stated threshold

No definition available.

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No authoritative reference available.

No definition available.

Total assets of consolidated tender option bond trusts for which BB&T is considered the primary beneficiary

No definition available.

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Total liabilities of consolidated tender option bond trusts for which BB&T is considered the primary beneficiary

No definition available.

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