Regulatory Requirements and Other Restrictions (Summary Information Regarding Regulatory Capital) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
BB&T [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 actual capital ratio	12.40%	11.80%
Tier 1 actual capital amount	$ 17,840	$ 16,074
Tier 1 minimum capital requirements	5,747	5,460
Tier 1 well-capitalized requirements	8,620	8,189
Total actual capital ratio	14.90%	14.30%
Total actual capital amount	21,381	19,514
Total minimum capital requirements	11,494	10,919
Total well-capitalized requirements	14,367	13,649
Actual leverage capital ratio	9.90%	9.30%
Actual leverage capital amount	17,840	16,074
Leverage capital minimum requirements	7,191	6,897
Leverage capital well-capitalized requirements	8,989	8,621
Branch Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 actual capital ratio	11.70%	11.90%
Tier 1 actual capital amount	16,329	15,785
Tier 1 minimum capital requirements	5,591	5,315
Tier 1 well-capitalized requirements	8,387	7,973
Total actual capital ratio	13.40%	13.40%
Total actual capital amount	18,761	17,872
Total minimum capital requirements	11,183	10,631
Total well-capitalized requirements	13,979	13,288
Actual leverage capital ratio	9.30%	9.40%
Actual leverage capital amount	16,329	15,785
Leverage capital minimum requirements	5,265	5,058
Leverage capital well-capitalized requirements	$ 8,775	$ 8,429