CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 8,375	$ 7,188	$ 6,707
Cost of sales	5,512	4,601	4,336
Gross profit	2,863	2,587	2,371
Selling, general and administrative expenses	1,413	1,292	1,274
Impairment charges for goodwill and other intangible assets	45	0	9
Operating profit	1,405	1,295	1,088
Other income (expense), net:
Interest expense	(278)	(144)	(159)
Other, net	(439)	(20)	(15)
Other income (expense), net	(717)	(164)	(174)
Income from continuing operations before income taxes	688	1,131	914
Income tax expense	210	269	230
Income from continuing operations	478	862	684
Income from discontinued operations, net	0	414	296
Net income	478	1,276	980
Less: Net income attributable to noncontrolling interest	68	52	45
Net income attributable to Masco Corporation	$ 410	$ 1,224	$ 935
Basic:
Income from continuing operations (in dollars per share)	$ 1.63	$ 3.05	$ 2.21
Income from discontinued operations, net (in dollars per share)	0	1.55	1.03
Net income, basic (in dollars per share)	1.63	4.60	3.24
Diluted:
Income from continuing operations (in dollars per share)	1.62	3.04	2.20
Income from discontinued operations, net (in dollars per share)	0	1.55	1.02
Net income, diluted (in dollars per share)	$ 1.62	$ 4.59	$ 3.22
Amounts attributable to Masco Corporation:
Income from continuing operations	$ 410	$ 810	$ 639
Income from discontinued operations, net	$ 0	$ 414	$ 296