Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets by class

Identifiable intangible assets consisted of the following:

(In millions)	Gross Carrying Amount		Accumulated Amortization		Net Book Value
June 30, 2020
Customer relationships	$	15,821	$	2,924	$	12,897
Acquired software and technology	2,543		723		1,820
Trade names	616		138		478
Capitalized software development costs	1,104		363		741
Purchased software	917		217		700
Total	$	21,001	$	4,365	$	16,636

(In millions)	Gross Carrying Amount		Accumulated Amortization		Net Book Value
December 31, 2019
Customer relationships	$	16,187	$	2,145	$	14,042
Acquired software and technology	2,607		639		1,968
Trade names	620		105		515
Capitalized software development costs	942		332		610
Purchased software	680		173		507
Total	$	21,036	$	3,394	$	17,642

Schedule of amortization expense of intangible assets

Amortization expense associated with the above identifiable intangible assets was as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2020		2019		2020		2019
Amortization expense	$	664	$	96	$	1,311	$	191