CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Net sales	$ 2,051	$ 2,091	$ 3,852	$ 4,017
Cost of sales	1,278	1,306	2,435	2,547
Gross profit	772	785	1,416	1,470
Selling, general and administrative expenses	361	388	719	755
Operating profit	412	397	698	715
Other income (expense), net:
Interest expense	(26)	(26)	(52)	(50)
Other, net	(7)	(5)	(14)	(10)
Nonoperating income (expense)	(33)	(31)	(66)	(61)
Income before income taxes	378	366	632	655
Income tax expense	95	94	150	154
Net income	283	272	482	501
Less: Net income attributable to noncontrolling interest	13	14	25	28
Net income attributable to Masco Corporation	$ 270	$ 258	$ 456	$ 473
Basic:
Net income, basic (in dollars per share)	$ 1.29	$ 1.18	$ 2.16	$ 2.15
Diluted:
Net income, diluted (in dollars per share)	$ 1.28	$ 1.17	$ 2.15	$ 2.14