Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets

Goodwill

	December 31, 2017		Acquisition		Divestiture		Translation		September 30, 2018
(Millions)	Balance		activity		activity		and other		Balance
Industrial	$	2,678	$	—	$	(4)	$	(50)	$	2,624
Safety and Graphics		4,419		7		(8)		(53)		4,365
Health Care		1,682		—		—		(20)		1,662
Electronics and Energy		1,524		—		(247)		(11)		1,266
Consumer		210		—		—		(4)		206
Total Company	$	10,513	$	7	$	(259)	$	(138)	$	10,123

Acquired Intangible Assets

	September 30,		December 31,
(Millions)	2018		2017
Customer related intangible assets	$	2,301	$	2,332
Patents		544		561
Other technology-based intangible assets		578		583
Definite-lived tradenames		664		678
Other amortizable intangible assets		125		207
Total gross carrying amount	$	4,212	$	4,361
Accumulated amortization — customer related		(966)		(874)
Accumulated amortization — patents		(486)		(489)
Accumulated amortization — other technology based		(323)		(292)
Accumulated amortization — definite-lived tradenames		(268)		(256)
Accumulated amortization — other		(86)		(162)
Total accumulated amortization	$	(2,129)	$	(2,073)
Total finite-lived intangible assets — net	$	2,083	$	2,288
Non-amortizable intangible assets (primarily tradenames)		643		648
Total intangible assets — net	$	2,726	$	2,936

Schedule of amortization expense for acquired intangible assets

Amortization expense for acquired intangible assets for the three and nine months ended September 30, 2018 and 2017 follows:

	Three months ended				Nine months ended
	September 30,				September 30,
(Millions)	2018		2017		2018		2017
Amortization expense	$	61	$	51	$	188	$	162

Schedule of expected amortization expense for acquired amortizable intangible assets

Expected amortization expense for acquired amortizable intangible assets recorded as of September 30, 2018:

	Remainder of												After
(Millions)	2018		2019		2020		2021		2022		2023		2023
Amortization expense	$	62	$	241	$	229	$	220	$	206	$	175	$	950