Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The goodwill balance by business segment as of December 31, 2020 and September 30, 2021, follow:

Goodwill

(Millions)	Safety and Industrial		Transportation and Electronics		Health Care		Consumer		Total Company
Balance as of December 31, 2020	$	4,687	$	1,858	$	6,992	$	265	$	13,802
Translation and other	(43)		(21)		(133)		(8)		(205)
Balance as of September 30, 2021	$	4,644	$	1,837	$	6,859	$	257	$	13,597

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 September 30, 2021, and December 31, 2020, follow:

(Millions)	September 30, 2021		December 31, 2020
Customer related intangible assets	$	4,229	$	4,280
Patents	516		537
Other technology-based intangible assets	2,112		2,114
Definite-lived tradenames	1,172		1,178
Other amortizable intangible assets	104		104
Total gross carrying amount	8,133		8,213
Accumulated amortization — customer related	(1,563)		(1,422)
Accumulated amortization — patents	(500)		(512)
Accumulated amortization — other technology-based	(789)		(638)
Accumulated amortization — definite-lived tradenames	(431)		(385)
Accumulated amortization — other	(79)		(79)
Total accumulated amortization	(3,362)		(3,036)
Total finite-lived intangible assets — net	4,771		5,177
Non-amortizable intangible assets (primarily tradenames)	655		658
Total intangible assets — net	$	5,426	$	5,835

Schedule of amortization expense for acquired intangible assets

Amortization expense for the three and nine months ended September 30, 2021 and 2020 follows:

	Three months ended September 30,				Nine months ended September 30,
(Millions)	2021		2020		2021		2020
Amortization expense	$	131	$	137	$	398	$	405

Schedule of expected amortization expense for acquired amortizable intangible assets

Expected amortization expense for acquired amortizable intangible assets recorded as of September 30, 2021:

(Millions)	Remainder of 2021		2022		2023		2024		2025		2026		After 2026
Amortization expense	$	131	$	514	$	486	$	458	$	428	$	420	$	2,334