CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net sales	$ 6,707	$ 6,654	$ 6,014
Cost of sales	4,336	4,327	3,794
Gross profit	2,371	2,327	2,220
Selling, general and administrative expenses	1,274	1,250	1,191
Impairment charge for other intangible assets	9	0	0
Operating profit	1,088	1,077	1,029
Other income (expense), net:
Interest expense	(159)	(156)	(279)
Other, net	(15)	(14)	(32)
Total other income (expense), net	(174)	(170)	(311)
Income from continuing operations before income taxes	914	907	718
Income tax expense	230	221	245
Income from continuing operations	684	686	473
Income from discontinued operations, net	296	98	107
Net income	980	784	580
Less: Net income attributable to noncontrolling interest	45	50	47
Net income attributable to Masco Corporation	$ 935	$ 734	$ 533
Basic:
Income from continuing operations (in dollars per share)	$ 2.21	$ 2.06	$ 1.34
Income from discontinued operations, net (in dollars per share)	1.03	0.32	0.34
Net income, basic (in dollars per share)	3.24	2.38	1.68
Diluted:
Income from continuing operations (in dollars per share)	2.20	2.05	1.33
Income from discontinued operations, net (in dollars per share)	1.02	0.32	0.33
Net income, diluted (in dollars per share)	$ 3.22	$ 2.37	$ 1.66
Amounts attributable to Masco Corporation:
Income from continuing operations	$ 639	$ 636	$ 426
Income from discontinued operations, net	$ 296	$ 98	$ 107