CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 980	$ 784	$ 580
Less: Net income attributable to noncontrolling interest	45	50	47
Net income attributable to Masco Corporation	935	734	533
Other comprehensive (loss) income, net of tax (Note O):
Cumulative translation adjustment	6	(31)	133
Interest rate swaps	2
Interest rate swaps		2	3
Pension and other post-retirement benefits	(64)	9	63
Other comprehensive (loss) income, net of tax	(56)	(20)	199
Less: Other comprehensive (loss) income attributable to the noncontrolling interest:
Cumulative translation adjustment	(1)	(15)	28
Pension and other post-retirement benefits	(3)	(2)	1
Less: Other comprehensive (loss) income attributable to noncontrolling interest	(4)	(17)	29
Other comprehensive (loss) income attributable to Masco Corporation	(52)	(3)	170
Total comprehensive income	924	764	779
Less: Total comprehensive income attributable to noncontrolling interest	41	33	76
Total comprehensive income attributable to Masco Corporation	$ 883	$ 731	$ 703