Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets

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		(7)		(8)		(59)		(6)		(80)
Balance as of June 30, 2021	$	4,680	$	1,850	$	6,933	$	259	$	13,722

Acquired Intangible Assets

	June 30,		December 31,
(Millions)	2021		2020
Customer related intangible assets	$	4,276	$	4,280
Patents		518		537
Other technology-based intangible assets		2,115		2,114
Definite-lived tradenames		1,173		1,178
Other amortizable intangible assets		107		104
Total gross carrying amount	$	8,189	$	8,213
Accumulated amortization — customer related		(1,539)		(1,422)
Accumulated amortization — patents		(500)		(512)
Accumulated amortization — other technology-based		(739)		(638)
Accumulated amortization — definite-lived tradenames		(414)		(385)
Accumulated amortization — other		(81)		(79)
Total accumulated amortization	$	(3,273)	$	(3,036)
Total finite-lived intangible assets — net	$	4,916	$	5,177
Non-amortizable intangible assets (primarily tradenames)		656		658
Total intangible assets — net	$	5,572	$	5,835

Schedule of amortization expense for acquired intangible assets

Amortization expense for the three and six months ended June 30, 2021 and 2020 follows:

	Three months ended				Six months ended
	June 30,				June 30,
(Millions)	2021		2020		2021		2020
Amortization expense	$	134	$	134	$	267	$	268

Schedule of expected amortization expense for acquired amortizable intangible assets

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

	Remainder of												After
(Millions)	2021		2022		2023		2024		2025		2026		2026
Amortization expense	$	262	$	516	$	487	$	459	$	429	$	421	$	2,342