Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amounts of Goodwill Attributable to Operating Segments

(Dollars in millions)	CB&W		C&CB		IH		Total
Goodwill, January 1, 2019	$	3,906	$	3,938	$	1,974	$	9,818
Mergers and acquisitions	10,134		4,187		21		14,342
Adjustments	—		—		(6)		(6)
Goodwill, December 31, 2019	$	14,040	$	8,125	$	1,989	$	24,154
Mergers and acquisitions	—		—		31		31
Adjustments	1,483		(1,741)		—		(258)
Goodwill, March 31, 2020	$	15,523	$	6,384	$	2,020	$	23,927

Identifiable Intangible Assets Subject to Amortization

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

	Weighted Average Remaining Amortization Period	March 31, 2020						December 31, 2019
(Dollars in millions)		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
CDI	9.3 years	$	2,599	$	(485)	$	2,114	$	2,474	$	(365)	$	2,109
Other, primarily client relationship intangibles	11.2	1,873		(819)		1,054		1,808		(775)		1,033
Total		$	4,472	$	(1,304)	$	3,168	$	4,282	$	(1,140)	$	3,142