Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Revenue [Abstract]

Disaggregation of Revenue

	Three months ended				Six months ended
	June 30,				June 30,
	2020		2019		2020		2019
Display products	$	744	$	820	$	1,377	$	1,615
Telecommunication products		887		1,090		1,678		2,154
Specialty glass products		417		369		769		678
Environmental substrate and filter products		215		353		522		704
Life science products		236		255		487		494
All Other		62		53		119		107
Total revenue	$	2,561	$	2,940	$	4,952	$	5,752
Impact of foreign currency movements (1)		27		46		60		84
Cumulative adjustment related to customer contract						105
Net sales of reportable segments and All Other	$	2,588	$	2,986	$	5,117	$	5,836

(1)This amount primarily represents the impact of foreign currency adjustments in the Display Technologies and Environmental Technologies segments.