Depreciation and Amortization	3 Months Ended
Mar. 31, 2017
Depreciation, Depletion and Amortization [Abstract]
Depreciation and Amortization	DEPRECIATION AND AMORTIZATION Depreciation and amortization expense was $31 million and $32 million for the three-month periods ended March 31, 2017 and 2016, respectively.

The entire disclosure for depreciation and amortization expense.

No definition available.

Name:	mas_DepreciationAndAmortizationExpenseDisclosureTextBlock
Namespace Prefix:	mas_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration