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INTERIM FINANCIAL INFORMATION (UNAUDITED) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
INTERIM FINANCIAL INFORMATION (UNAUDITED) | INTERIM FINANCIAL INFORMATION (UNAUDITED) Our quarterly results attributable to Masco Corporation were as follows:
|  |  | Quarters Ended
|  |  | (In Millions, Except Per Common Share Data)
| Total Year |  | December 31 |  | September 30 |  | June 30 |  | March 31
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ | 7,644 |  |  | $ | 1,874 |  |  | $ | 1,936 |  |  | $ | 2,057 |  |  | $ | 1,777 |
Gross profit | $ | 2,611 |  |  | $ | 616 |  |  | $ | 650 |  |  | $ | 737 |  |  | $ | 608 |
Net income | $ | 533 |  |  | $ | 87 |  |  | $ | 148 |  |  | $ | 158 |  |  | $ | 140 |
Earnings per common share: |  |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |  |
Net income | $ | 1.68 |  |  | $ | 0.28 |  |  | $ | 0.47 |  |  | $ | 0.50 |  |  | $ | 0.44 |
Diluted: |  |  |  |  |  |  |  |  |
Net income | $ | 1.66 |  |  | $ | 0.27 |  |  | $ | 0.46 |  |  | $ | 0.49 |  |  | $ | 0.43 |
2016 |  |  |  |  |  |  |  |  |
Net sales | $ | 7,357 |  |  | $ | 1,759 |  |  | $ | 1,877 |  |  | $ | 2,001 |  |  | $ | 1,720 |
Gross profit | $ | 2,456 |  |  | $ | 573 |  |  | $ | 614 |  |  | $ | 700 |  |  | $ | 569 |
Net income | $ | 491 |  |  | $ | 98 |  |  | $ | 134 |  |  | $ | 150 |  |  | $ | 109 |
Earnings per common share: |  |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |  |
Net income | $ | 1.49 |  |  | $ | 0.30 |  |  | $ | 0.41 |  |  | $ | 0.45 |  |  | $ | 0.33 |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | $ | 1.47 |  |  | $ | 0.30 |  |  | $ | 0.40 |  |  | $ | 0.45 |  |  | $ | 0.32 |
Earnings per common share amounts for the four quarters of December 31, 2017 and 2016 may not total to the earnings per common share amounts for the years ended December 31, 2017 and 2016 due to the allocation of income to participating securities.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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