Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2018

Goodwill and Other Intangible Assets [Abstract]

Carrying Amount of Goodwill by Segment

	Display		Optical		Specialty		Life		All
	Technologies		Communications		Materials		Sciences		Other		Total
Balance at December 31, 2017	$	136	$	671	$	150	$	623	$	114	$	1,694
Acquired goodwill (1)				242								242
Foreign currency translation    adjustment		(4)		(6)				(5)		(3)		(18)
Balance at June 30, 2018	$	132	$	907	$	150	$	618	$	111	$	1,918

(1)The Company completed the acquisition of 3M in the Optical Communications segment during the second quarter of 2018.  Refer to Note 8 (Acquisitions) to the Consolidated Financial Statements for additional information on this acquisition.

Other Intangible Assets

	June 30, 2018						December 31, 2017
			Accumulated						Accumulated
	Gross		amortization		Net		Gross		amortization		Net
Amortized intangible assets:
Patents, trademarks, and    trade names	$	468	$	195	$	273	$	382	$	188	$	194
Customer lists and other		1,297		238		1,059		884		209		675
Total	$	1,765	$	433	$	1,332	$	1,266	$	397	$	869