Long-Term Debt (Schedule of Long Term Debt, Interest Rates and Maturity Dates) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt	$ 21,965	$ 23,769
Other long-term debt	$ 152	154
FHLB Advances
Debt Instrument [Line Items]
Weighted average maturity of FHLB advances	5 years 6 months
BB&T Corporation
Debt Instrument [Line Items]
Long-term debt	$ 10,836	10,274
BB&T Corporation \| Senior Notes \| Fixed rate
Debt Instrument [Line Items]
Effective Rate	2.33%
Long-term debt	$ 7,600	7,831
BB&T Corporation \| Senior Notes \| Fixed rate \| Min
Debt Instrument [Line Items]
Stated Rate	1.45%
BB&T Corporation \| Senior Notes \| Fixed rate \| Max
Debt Instrument [Line Items]
Stated Rate	6.85%
BB&T Corporation \| Senior Notes \| Floating rate
Debt Instrument [Line Items]
Effective Rate	1.67%
Long-term debt	$ 1,898	1,050
BB&T Corporation \| Senior Notes \| Floating rate \| Min
Debt Instrument [Line Items]
Stated Rate	1.55%
BB&T Corporation \| Senior Notes \| Floating rate \| Max
Debt Instrument [Line Items]
Stated Rate	1.82%
BB&T Corporation \| Subordinated Notes \| Fixed rate
Debt Instrument [Line Items]
Effective Rate	1.53%
Long-term debt	$ 1,338	1,382
BB&T Corporation \| Subordinated Notes \| Fixed rate \| Min
Debt Instrument [Line Items]
Stated Rate	3.95%
BB&T Corporation \| Subordinated Notes \| Fixed rate \| Max
Debt Instrument [Line Items]
Stated Rate	5.25%
Branch Bank \| Senior Notes \| Fixed rate
Debt Instrument [Line Items]
Effective Rate	1.80%
Long-term debt	$ 4,209	4,071
Branch Bank \| Senior Notes \| Fixed rate \| Min
Debt Instrument [Line Items]
Stated Rate	1.00%
Branch Bank \| Senior Notes \| Fixed rate \| Max
Debt Instrument [Line Items]
Stated Rate	2.85%
Branch Bank \| Senior Notes \| Floating rate
Debt Instrument [Line Items]
Effective Rate	1.48%
Long-term debt	$ 250	375
Branch Bank \| Senior Notes \| Floating rate \| Min
Debt Instrument [Line Items]
Stated Rate	1.42%
Branch Bank \| Senior Notes \| Floating rate \| Max
Debt Instrument [Line Items]
Stated Rate	1.42%
Branch Bank \| Subordinated Notes \| Fixed rate
Debt Instrument [Line Items]
Effective Rate	3.48%
Long-term debt	$ 2,138	2,562
Branch Bank \| Subordinated Notes \| Fixed rate \| Min
Debt Instrument [Line Items]
Stated Rate	3.63%
Branch Bank \| Subordinated Notes \| Fixed rate \| Max
Debt Instrument [Line Items]
Stated Rate	3.80%
Branch Bank \| Subordinated Notes \| Floating rate
Debt Instrument [Line Items]
Effective Rate	3.73%
Long-term debt	$ 262	612
Branch Bank \| Subordinated Notes \| Floating rate \| Min
Debt Instrument [Line Items]
Stated Rate	1.22%
Branch Bank \| Subordinated Notes \| Floating rate \| Max
Debt Instrument [Line Items]
Stated Rate	1.22%
Branch Bank \| FHLB Advances
Debt Instrument [Line Items]
Effective Rate	4.20%
Long-term debt	$ 4,118	$ 5,732
Branch Bank \| FHLB Advances \| Min
Debt Instrument [Line Items]
Stated Rate	0.00%
Branch Bank \| FHLB Advances \| Max
Debt Instrument [Line Items]
Stated Rate	6.38%

Weighted average maturity of FHLB advances

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount of long-term debt classified as other.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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