Warranty Liability - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2017	Dec. 31, 2016
Product Warranty Liability [Line Items]
Increase in expected future warranty claims			$ 43	$ 66
Windows and Other Specialty Products
Product Warranty Liability [Line Items]
Increase in expected future warranty claims	$ 21	$ 10