Reportable Segments (Reconciliation of Reportable Segment and All Other Net Sales to Consolidated Net Sales) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Reportable Segments [Abstract]
Net sales of reportable segments and All Other		$ 2,986	$ 2,759	$ 5,836	$ 5,272
Impact of foreign currency movements	[1]	(46)	(12)	(84)	(25)
Net sales		$ 2,940	$ 2,747	$ 5,752	$ 5,247

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