Intangible Assets (Tables)

9 Months Ended

Sep. 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
September 30, 2020
Customer relationships	$	15,124	$	3,217	$	11,907
Acquired software and technology	2,555		802		1,753
Trade names	616		154		462
Capitalized software and other intangibles	1,236		400		836
Purchased software	930		239		691
Total	$	20,461	$	4,812	$	15,649

(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 and other intangibles	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 September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Amortization expense	$	623	$	459	$	1,934	$	650

Schedule of estimated annual amortization expense of intangible assets

The Company estimates that annual amortization expense with respect to intangible assets recorded at September 30, 2020 will be as follows:

(In millions)
Year ending December 31,
Remainder of 2020	$	621
2021	2,432
2022	2,244
2023	1,979
2024	1,531
Thereafter	6,842
Total	$	15,649