Discontinued Operations - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) income from discontinued operations, net	$ 14	$ 29		$ 411	$ 38
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	436		101	831
Cost of sales	0	327		78	645
Gross profit	0	109		23	186
Selling, general and administrative expenses (A)	(1)	64		31	120
Impairment charge for goodwill	0	0		0	7
Other income (expense), net	0	(1)		0	0
Income (loss) from discontinued operations	1	44		(8)	59
Gain on disposal of discontinued operations	17	0		602	0
Income before income tax	18	44		594	59
Income tax benefit (expense)	(4)	(15)		(183)	(21)
(Loss) income from discontinued operations, net	$ 14	$ 29		$ 411	$ 38
UK Window Group | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncash goodwill impairment			$ 7