Discontinued Operations - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) income from discontinued operations, net	$ (58)		$ 10	$ (64)	$ 23
UK Window Group | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	172		197	515	575
Cost of sales	137		153	408	450
Gross profit	35		44	107	125
Selling, general and administrative expenses	29		30	93	93
Impairment charge for goodwill	0		0	7	0
Other income (expense), net	0		0	0	1
Income from discontinued operations	6		14	7	33
(Loss) on disposal of discontinued operations	(70)		0	(70)	0
(Loss) income before income tax	(64)		14	(63)	33
Income tax benefit (expense)	6		(4)	(1)	(10)
(Loss) income from discontinued operations, net	$ (58)		$ 10	$ (64)	$ 23
Noncash goodwill impairment		$ 7