Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill Activity by Operating Segment

The changes in the carrying amounts of goodwill attributable to BB&T’s operating segments are reflected in the table below. During the fourth quarter of 2017, the operating segments were reorganized and goodwill was reallocated to the new segments based upon the relative fair value of the underlying reporting units, as applicable. Refer to "Note 19. Operating Segments" for additional information. There have been no goodwill impairments recorded to date.

(Dollars in millions)	Community Banking			Residential Mortgage Banking		Dealer Financial Services		Specialized Lending			Insurance Holdings			Financial Services		Total
Goodwill, January 1, 2015	$	4,634		$	326	$	111	$	88		$	1,518		$	192	$	6,869
Acquired goodwill, net	1,501			43		—		155			16			11		1,726
American Coastal sale	—			—		—		—			(49		)	—		(49		)
Other adjustments	5			—		—		—			(3		)	—		2
Goodwill, December 31, 2015	6,140			369		111		243			1,482			203		8,548
Acquired goodwill, net	753			39		—		2			270			9		1,073
Other adjustments	139			8		—		(132		)	—			2		17
Goodwill, December 31, 2016	7,032			416		111		113			1,752			214		9,638
Other adjustments	(12		)	6		—		(9		)	(5		)	—		(20		)
Goodwill, prior to reorganization	$	7,020		$	422	$	111	$	104		$	1,747		$	214	$	9,618
Goodwill, after reorganization						CB-Retail		CB-Commercial			FS&CF			IH&PF		Total
Goodwill, December 31, 2017						$	3,724	$	3,862		$	259		$	1,773	$	9,618

Identifiable Intangible Assets Subject to Amortization

The following table, which excludes fully amortized intangibles, presents information for identifiable intangible assets: 

		December 31, 2017							December 31, 2016
(Dollars in millions)	Wtd. Avg. Remaining Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
CDI	7.0 years	$	605	$	(409	)	$	196	$	825	$	(565	)	$	260
Other, primarily customer relationship intangibles	12.0	1,211		(696		)	515		1,249		(655		)	594
Total		$	1,816	$	(1,105	)	$	711	$	2,074	$	(1,220	)	$	854

Future Amortization Expense of Identifiable Intangible Assets

 The estimated amortization expense for the next five years is presented as follows:

	Year Ended December 31,
(Dollars in millions)	2018		2019		2020		2021		2022
Estimated amortization expense of identifiable intangibles	$	122	$	104	$	87	$	74	$	64