Weighted-Average Shares Outstanding Used to Calculate Basic and Diluted Earnings (Loss) Per Share (Detail) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Numerator (in millions):
Net Earnings (Loss) Attributable to Stanley Black & Decker, Inc.	$ 197.3	$ 45.8	$ 356.0	$ (62.8)
Less Earnings (Loss) Attributable to participating RSUs	0.4	0.2	0.8	(0.1)
Net Earnings (Loss)- basic	196.9	45.6	355.2	(62.7)
Net Earnings (Loss) - dilutive	$ 197.3	$ 45.8	$ 356.0	$ (62.8)
Denominator (in thousands):
Basic earnings per share - weighted-average shares	168,119	162,847	167,679	129,163
Dilutive effect of stock options and awards	4,956	3,237	4,750
Diluted earnings per share - weighted-average shares	173,075	166,084	172,429	129,163
Earnings (Loss) per share of common stock:
Basic	$ 1.17	$ 0.28	$ 2.12	$ (0.49)
Diluted	$ 1.14	$ 0.28	$ 2.06	$ (0.49)

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Income Loss From Continuing Operations Allocable To Non Vested Restricted Shares

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Potential Dilutive Securities That Could Be Included In the Computation of Earnings Per Share, Amount

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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