Results of Black & Decker's Operations within each of Segments and Activity since the Merger Date (Detail) (USD $) In Millions	3 Months Ended	9 Months Ended
Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Segment Reporting Information [Line Items]
Net sales	$ 2,636.4	$ 2,369.1	$ 7,640.3	$ 5,996.7
Segment profit	385.2	326.7	1,111.8	713.2
Corporate overhead	(55.4)	(55.0)	(172.3)	(183.3)
Other, net	(89.9)	(52.3)	(202.2)	(182.3)
Restructuring charges and asset impairments	(24.3)	(24.8)	(58.7)	(208.0)
Interest expense	(34.9)	(29.2)	(103.6)	(75.3)
Interest income	8.0	2.5	20.4	5.9
(Loss) earnings from continuing operations before income taxes and equity in earnings of subsidiaries	188.7	167.9	595.4	70.2
Construction and Do It Yourself \| Segment, Continuing Operations
Segment Reporting Information [Line Items]
Net sales	1,337.6	1,266.8	3,912.8	3,115.8
Segment profit	169.9	158.8	516.9	319.1
Industrial Segment \| Segment, Continuing Operations
Segment Reporting Information [Line Items]
Net sales	642.4	539.2	1,891.3	1,332.5
Segment profit	105.8	80.7	310.2	175.1
Securities Industry \| Segment, Continuing Operations
Segment Reporting Information [Line Items]
Net sales	656.4	563.1	1,836.2	1,548.4
Segment profit	$ 109.5	$ 87.2	$ 284.7	$ 219.0

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The cost of borrowed funds accounted for as interest that was charged against earnings during the period.

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