XML 61 R11.htm IDEA: XBRL DOCUMENT v2.4.0.6

Depreciation and Amortization Expense	9 Months Ended
	Sep. 30, 2012
Depreciation and Amortization Expense	D. Depreciation and amortization expense was $154 million and $188 million, including accelerated depreciation (relating to business rationalization initiatives) of $12 million and $28 million, for the nine months ended September 30, 2012 and 2011, respectively.

X

- Definition

Depreciation And Amortization Expense Disclosure [Text Block]

+ References

No definition available.

+ Details

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