CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 171	$ 163	$ 321	$ 282
Less: Net income attributable to noncontrolling interest	13	13	23	23
Net income attributable to Masco Corporation	158	150	298	259
Other comprehensive income (loss), net of tax (Note J):
Cumulative translation adjustment	65	(33)	86	(9)
Interest rate swaps	2	1	2	1
Pension and other post-retirement benefits	3	3	7	6
Realized gain on available-for-sale securities	0	(1)	0	(1)
Other comprehensive income (loss)	70	(30)	95	(3)
Less: Other comprehensive income (loss) attributable to noncontrolling interest	14	(5)	18	2
Other comprehensive income (loss) attributable to Masco Corporation	56	(25)	77	(5)
Total comprehensive income	241	133	416	279
Less: Total comprehensive income attributable to the noncontrolling interest	27	8	41	25
Total comprehensive income attributable to Masco Corporation	$ 214	$ 125	$ 375	$ 254