CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,581	$ 1,513
Cost of sales	1,034	991
Gross profit	547	522
Selling, general and administrative expenses	322	316
Impairment charge for other intangible assets	0	9
Operating profit	225	197
Other income (expense), net:
Interest expense	(35)	(39)
Other, net	(16)	(5)
Total other income (expense), net	(51)	(44)
Income from continuing operations before income taxes	174	153
Income tax expense	33	35
Income from continuing operations	141	118
Income from discontinued operations, net	397	9
Net income	538	127
Less: Net income attributable to noncontrolling interest	8	11
Net income attributable to Masco Corporation	$ 530	$ 116
Basic:
Income from continuing operations (in dollars per share)	$ 0.49	$ 0.36
(Loss) income from discontinued operations, net (in dollars per share)	1.44	0.03
Net income (in dollars per share)	1.93	0.39
Diluted:
Income from continuing operations (in dollars per share)	0.48	0.36
(Loss) income from discontinued operations, net (in dollars per share)	1.44	0.03
Net income (in dollars per share)	$ 1.92	$ 0.39
Amounts attributable to Masco Corporation:
Income from continuing operations	$ 133	$ 107
Income from discontinued operations, net	$ 397	$ 9