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Warranty Liability - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2017	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2016
Product Warranty Liability [Line Items]
Increase in expected future warranty claims	$ 13			$ 66
Windows and Other Specialty Products
Product Warranty Liability [Line Items]
Increase in expected future warranty claims		$ 21	$ 10

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph ((c)(3))
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

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