Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets

Goodwill

(Millions)	Industrial		Safety and Graphics		Health Care		Electronics and Energy		Consumer		Total Company
Balance as of December 31, 2016	$	2,536	$	3,324	$	1,609	$	1,489	$	208	$	9,166
Acquisition activity		—		1,296		6		—		—		1,302
Divestiture activity		—		(323)		—		—		—		(323)
Translation and other		142		122		67		35		2		368
Balance as of December 31, 2017		2,678		4,419		1,682		1,524		210		10,513
Acquisition activity		—		7		—		—		—		7
Divestiture activity		(4)		(8)		—		(260)		—		(272)
Translation and other		(60)		(93)		(28)		(14)		(2)		(197)
Balance as of December 31, 2018	$	2,614	$	4,325	$	1,654	$	1,250	$	208	$	10,051

Acquired Intangible Assets

	December 31,		December 31,
(Millions)	2018		2017
Customer related intangible assets	$	2,291	$	2,332
Patents		542		561
Other technology-based intangible assets		576		583
Definite-lived tradenames		664		678
Other amortizable intangible assets		125		207
Total gross carrying amount	$	4,198	$	4,361
Accumulated amortization — customer related		(998)		(874)
Accumulated amortization — patents		(487)		(489)
Accumulated amortization — other technology based		(333)		(292)
Accumulated amortization — definite-lived tradenames		(276)		(256)
Accumulated amortization — other		(88)		(162)
Total accumulated amortization	$	(2,182)	$	(2,073)
Total finite-lived intangible assets — net	$	2,016	$	2,288
Non-amortizable intangible assets (primarily tradenames)		641		648
Total intangible assets — net	$	2,657	$	2,936

Schedule of amortization expense for acquired intangible assets

Amortization expense for the years ended December 31 follows:

(Millions)	2018		2017		2016
Amortization expense	$	249	$	238	$	262

Schedule of expected amortization expense for acquired amortizable intangible assets

Expected amortization expense for acquired amortizable intangible assets recorded as of December 31, 2018 follows:

											After
(Millions)	2019		2020		2021		2022		2023		2023
Amortization expense	$	240	$	228	$	219	$	205	$	174	$	950