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Cover Page Document
May 12, 2021
Cover [Abstract]  
Entity Central Index Key 0000062996
Title of 12(b) Security Common Stock, $1.00 par value
Local Phone Number 274-7400
Entity Address, Address Line One 17450 College Parkway,
Entity Incorporation, State or Country Code DE
Document Type 8-K
Document Period End Date May 12, 2021
Entity Registrant Name Masco Corporation
City Area Code 313
Entity File Number 1-5794
Entity Tax Identification Number 38-1794485
Entity Address, City or Town Livonia,
Entity Address, State or Province MI
Entity Address, Postal Zip Code 48152
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Trading Symbol MAS
Security Exchange Name NYSE
Entity Emerging Growth Company false
Amendment Flag false