Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets

Goodwill

	December 31, 2017		Acquisition		Divestiture		Translation		March 31, 2018
(Millions)	Balance		activity		activity		and other		Balance
Industrial	$	2,678	$	—	$	(4)	$	38	$	2,712
Safety and Graphics		4,419		(20)		(8)		18		4,409
Health Care		1,682		—		—		17		1,699
Electronics and Energy		1,524		—		—		12		1,536
Consumer		210		—		—		4		214
Total Company	$	10,513	$	(20)	$	(12)	$	89	$	10,570

Acquired Intangible Assets

	March 31,		December 31,
(Millions)	2018		2017
Customer related intangible assets	$	2,341	$	2,332
Patents		564		561
Other technology-based intangible assets		584		583
Definite-lived tradenames		679		678
Other amortizable intangible assets		208		207
Total gross carrying amount	$	4,376	$	4,361
Accumulated amortization — customer related		(912)		(874)
Accumulated amortization — patents		(496)		(489)
Accumulated amortization — other technology based		(304)		(292)
Accumulated amortization — definite-lived tradenames		(265)		(256)
Accumulated amortization — other		(166)		(162)
Total accumulated amortization	$	(2,143)	$	(2,073)
Total finite-lived intangible assets — net	$	2,233	$	2,288
Non-amortizable intangible assets (primarily tradenames)		652		648
Total intangible assets — net	$	2,885	$	2,936

Schedule of amortization expense for acquired intangible assets

Amortization expense for acquired intangible assets for the three-month periods ended March 31, 2018 and 2017 follows:

	Three months ended
	March 31,
(Millions)	2018		2017
Amortization expense	$	64	$	64

Schedule of expected amortization expense for acquired amortizable intangible assets

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

	Remainder of												After
(Millions)	2018		2019		2020		2021		2022		2023		2023
Amortization expense	$	190	$	243	$	232	$	222	$	208	$	176	$	962