INTERIM FINANCIAL INFORMATION (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of interim financial information

Our quarterly results attributable to Masco Corporation were as follows:

			Quarters Ended
			(In Millions, Except Per Common Share Data)
	Total Year		December 31		September 30		June 30		March 31
2018
Net sales	$	8,359	$	2,041	$	2,101	$	2,297	$	1,920
Gross profit	$	2,689	$	653	$	667	$	750	$	619
Net income	$	734	$	194	$	180	$	211	$	149
Income per common share:
Basic:
Net income	$	2.38	$	0.65	$	0.59	$	0.69	$	0.48
Diluted:
Net income	$	2.37	$	0.64	$	0.58	$	0.68	$	0.47
2017
Net sales	$	7,642	$	1,853	$	1,945	$	2,066	$	1,778
Gross profit	$	2,612	$	604	$	657	$	746	$	605
Net income	$	533	$	80	$	152	$	163	$	138
Income per common share:
Basic:
Net income	$	1.68	$	0.25	$	0.48	$	0.51	$	0.43
Diluted:
Net income	$	1.66	$	0.25	$	0.48	$	0.51	$	0.43