Reportable Segments (Reconciliation of Reportable Segment and All Other Net Sales to Consolidated Net Sales) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reportable Segments [Abstract]
Net sales of reportable segments and All Other		$ 11,656	$ 11,398	$ 10,258
Impact of foreign currency movements	[1]	(153)	(108)	(142)
Net sales		$ 11,503	$ 11,290	$ 10,116

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