Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets

Goodwill

(Millions)	Safety and Industrial		Transportation and Electronics		Health Care		Consumer		Total Company
Balance as of December 31, 2018		4,716		1,857		3,248		230		10,051
Acquisition activity		—		—		508		—		508
Divestiture activity		(49)		—		—		—		(49)
Translation and other		(51)		(27)		(53)		31		(100)
Balance as of September 30, 2019	$	4,616	$	1,830	$	3,703	$	261	$	10,410

Acquired Intangible Assets

	September 30,		December 31,
(Millions)	2019		2018
Customer related intangible assets	$	2,525	$	2,291
Patents		536		542
Other technology-based intangible assets		727		576
Definite-lived tradenames		673		664
Other amortizable intangible assets		122		125
Total gross carrying amount	$	4,583	$	4,198
Accumulated amortization — customer related		(1,107)		(998)
Accumulated amortization — patents		(493)		(487)
Accumulated amortization — other technology-based		(382)		(333)
Accumulated amortization — definite-lived tradenames		(300)		(276)
Accumulated amortization — other		(89)		(88)
Total accumulated amortization	$	(2,371)	$	(2,182)
Total finite-lived intangible assets — net	$	2,212	$	2,016
Non-amortizable intangible assets (primarily tradenames)		635		641
Total intangible assets — net	$	2,847	$	2,657

Schedule of amortization expense for acquired intangible assets

Amortization expense for the three and nine months ended September 30, 2019 and 2018 follows:

	Three months ended				Nine months ended
	September 30,				September 30,
(Millions)	2019		2018		2019		2018
Amortization expense	$	69	$	61	$	208	$	188

Schedule of expected amortization expense for acquired amortizable intangible assets

Expected amortization expense for acquired amortizable intangible assets recorded as of September 30, 2019:

	Remainder of												After
(Millions)	2019		2020		2021		2022		2023		2024		2024
Amortization expense	$	69	$	264	$	256	$	242	$	213	$	183	$	950