Regulatory Requirements and Other Restrictions (Tables)

12 Months Ended

Dec. 31, 2017

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. 

	December 31, 2017								December 31, 2016
	Actual Capital				Capital Requirements				Actual Capital				Capital Requirements
(Dollars in millions)	Ratio		Amount		Minimum		Well-Capitalized		Ratio		Amount		Minimum		Well-Capitalized
CET1 Capital:
BB&T Corporation	10.2	%	$	18,051	$	7,975	$	11,519	10.2	%	$	18,050	$	7,926	$	11,449
Branch Bank	11.3		19,480		7,752		11,197		11.5		19,839		7,730		11,166
Tier 1 Capital:
BB&T Corporation	11.9		21,102		10,633		14,177		12.0		21,102		10,568		14,091
Branch Bank	11.3		19,480		10,336		13,781		11.5		19,839		10,307		13,743
Total Capital:
BB&T Corporation	13.9		24,653		14,177		17,722		14.1		24,872		14,091		17,614
Branch Bank	13.3		22,915		13,781		17,226		13.6		23,289		13,743		17,179
Leverage Capital:
BB&T Corporation	9.9		21,102		8,567		10,708		10.0		21,102		8,460		10,576
Branch Bank	9.4		19,480		8,315		10,394		9.6		19,839		8,249		10,311