Regulatory Requirements and Other Restrictions (Tables)

12 Months Ended

Dec. 31, 2018

Regulatory Capital Requirements [Abstract]

Summary Information Regarding Regulatory Capital

Risk-based capital ratios, which include CET1, Tier 1 Capital and Total Capital, are calculated based on regulatory guidance related to the measurement of capital and risk-weighted assets. 

	2018								2017
	Actual Capital				Capital Requirements				Actual Capital				Capital Requirements
December 31, (Dollars in millions)	Ratio		Amount		Minimum		Well-Capitalized		Ratio		Amount		Minimum		Well-Capitalized
CET1 capital:
BB&T Corporation	10.2	%	$	18,405	$	8,157	$	11,782	10.2	%	$	18,051	$	7,975	$	11,519
Branch Bank	11.2		19,571		7,875		11,375		11.3		19,480		7,752		11,197
Tier 1 capital:
BB&T Corporation	11.8		21,456		10,876		14,501		11.9		21,102		10,633		14,177
Branch Bank	11.2		19,571		10,500		14,000		11.3		19,480		10,336		13,781
Total capital:
BB&T Corporation	13.8		24,963		14,501		18,126		13.9		24,653		14,177		17,722
Branch Bank	13.2		23,049		14,000		17,500		13.3		22,915		13,781		17,226
Leverage capital:
BB&T Corporation	9.9		21,456		8,635		10,794		9.9		21,102		8,567		10,708
Branch Bank	9.3		19,571		8,378		10,473		9.4		19,480		8,315		10,394