Other Income (Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other Nonoperating Income (Expense) [Abstract]
Interest income	$ 45	$ 38	$ 52
Income (loss) from investments	16	(13)	4
Gain (loss) on disposal of operations and affiliates	1	(12)	16
Equity income (loss) in Wilsonart	0	61	(4)
Gain (loss) on foreign currency transactions, net	(25)	9	5
Other, net	(1)	(2)	5
Total other income (expense)	$ 36	$ 81	$ 78