Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The goodwill balance by business segment follows:

(Millions)	Safety and Industrial		Transportation and Electronics		Health Care		Consumer		Total Company
Balance as of December 31, 2019	$	4,621	$	1,830	$	6,739	$	254	$	13,444
Acquisition activity	—		—		(34)		—		(34)
Divestiture activity	—		(10)		(19)		—		(29)
Translation and other	66		38		306		11		421
Balance as of December 31, 2020	4,687		1,858		6,992		265		13,802
Translation and other	(65)		(33)		(206)		(12)		(316)
Balance as of December 31, 2021	$	4,622	$	1,825	$	6,786	$	253	$	13,486

Schedule of acquired intangible assets

The carrying amount and accumulated amortization of acquired finite-lived intangible assets, in addition to the balance of non-amortizable intangible assets, as of December 31, follow:

(Millions)	2021		2020
Customer related intangible assets	$	4,216	$	4,280
Patents	513		537
Other technology-based intangible assets	2,111		2,114
Definite-lived tradenames	1,171		1,178
Other amortizable intangible assets	105		104
Total gross carrying amount	8,116		8,213
Accumulated amortization — customer related	(1,616)		(1,422)
Accumulated amortization — patents	(500)		(512)
Accumulated amortization — other technology-based	(839)		(638)
Accumulated amortization — definite-lived tradenames	(447)		(385)
Accumulated amortization — other	(79)		(79)
Total accumulated amortization	(3,481)		(3,036)
Total finite-lived intangible assets — net	4,635		5,177
Non-amortizable intangible assets (primarily tradenames)	653		658
Total intangible assets — net	$	5,288	$	5,835

Schedule of amortization expense for acquired intangible assets

Amortization expense for the years ended December 31 follows:

(Millions)	2021		2020		2019
Amortization expense	$	529	$	537	$	341

Schedule of expected amortization expense for acquired amortizable intangible assets

Expected amortization expense for acquired amortizable intangible assets recorded as of December 31, 2021 follows:

(Millions)	2022		2023		2024		2025		2026		After 2026
Amortization expense	$	514	$	485	$	457	$	427	$	420	$	2,332