CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net sales	$ 1,936	$ 1,877	$ 5,770	$ 5,598
Cost of sales	1,286	1,263	3,775	3,715
Gross profit	650	614	1,995	1,883
Selling, general and administrative expenses	355	345	1,090	1,045
Operating profit	295	269	905	838
Other income (expense), net:
Interest expense	(43)	(43)	(239)	(186)
Other, net	4	1	58	5
Total other income (expense), net	(39)	(42)	(181)	(181)
Income before income taxes	256	227	724	657
Income tax expense	96	81	243	229
Net income	160	146	481	428
Less: Net income attributable to noncontrolling interest	12	12	35	35
Net income attributable to Masco Corporation	$ 148	$ 134	$ 446	$ 393
Basic:
Net income (in dollars per share)	$ 0.47	$ 0.41	$ 1.40	$ 1.18
Diluted:
Net income (in dollars per share)	$ 0.46	$ 0.40	$ 1.38	$ 1.17