Condensed Consolidating Statement of Operations and Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Schedule of Condensed Consolidating Statement of Operations [Line Items]
NET SALES	$ 2,487.2	$ 2,426.1
Costs and Expenses
Cost of sales	1,576.3	1,514.1
Selling, general and administrative	669.9	637.3
Other - net	71.0	67.9
Restructuring charges	42.9	40.0
Interest expense, net	36.7	31.4
Costs and Expenses, Total	2,396.8	2,290.7
Earnings from continuing operations before income taxes	90.4	135.4
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries	8.8	29.8
Equity in earnings of subsidiaries	0	0
Earnings from continuing operations	81.6	105.6
Less: net loss attributable to non-controlling interests	(0.4)	(0.7)
Net earnings from continuing operations attributable to common shareowners	82.0	106.3
Net earnings from discontinued operations	(0.9)	15.5
Net Earnings Attributable to Common Shareowners	81.1	121.8
Total Comprehensive (Loss) Income Attributable to Common Shareowners	(61.1)	198.7
Parent Stanley Black & Decker, Inc.
Schedule of Condensed Consolidating Statement of Operations [Line Items]
NET SALES	311.8	338.4
Costs and Expenses
Cost of sales	231.4	220.3
Selling, general and administrative	170.8	168.4
Other - net	(20.2)	(12.9)
Restructuring charges	16.5	0
Interest expense, net	30.3	20.4
Costs and Expenses, Total	428.8	396.2
Earnings from continuing operations before income taxes	(117.0)	(57.8)
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries	(43.3)	(17.9)
Equity in earnings of subsidiaries	155.7	146.2
Earnings from continuing operations	82.0	106.3
Less: net loss attributable to non-controlling interests	0	0
Net earnings from continuing operations attributable to common shareowners	82.0	106.3
Net earnings from discontinued operations	(0.9)	15.5
Net Earnings Attributable to Common Shareowners	81.1	121.8
Total Comprehensive (Loss) Income Attributable to Common Shareowners	(61.1)	198.7
The Black & Decker Corporation
Schedule of Condensed Consolidating Statement of Operations [Line Items]
NET SALES	0	0
Costs and Expenses
Cost of sales	0	0
Selling, general and administrative	0.7	6.1
Other - net	(15.5)	(17.8)
Restructuring charges	0	0
Interest expense, net	6.6	11.7
Costs and Expenses, Total	(8.2)	0
Earnings from continuing operations before income taxes	8.2	0
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries	3.0	0
Equity in earnings of subsidiaries	114.9	109.0
Earnings from continuing operations	120.1	109.0
Less: net loss attributable to non-controlling interests	0	0
Net earnings from continuing operations attributable to common shareowners	120.1	109.0
Net earnings from discontinued operations	0	14.5
Net Earnings Attributable to Common Shareowners	120.1	123.5
Total Comprehensive (Loss) Income Attributable to Common Shareowners	26.4	54.0
Non-Guarantor Subsidiaries
Schedule of Condensed Consolidating Statement of Operations [Line Items]
NET SALES	2,261.9	2,177.7
Costs and Expenses
Cost of sales	1,416.2	1,365.3
Selling, general and administrative	513.6	481.3
Other - net	106.7	98.6
Restructuring charges	26.4	40.0
Interest expense, net	(0.2)	(0.7)
Costs and Expenses, Total	2,062.7	1,984.5
Earnings from continuing operations before income taxes	199.2	193.2
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries	49.1	47.7
Equity in earnings of subsidiaries	0	0
Earnings from continuing operations	150.1	145.5
Less: net loss attributable to non-controlling interests	(0.4)	(0.7)
Net earnings from continuing operations attributable to common shareowners	150.5	146.2
Net earnings from discontinued operations	(0.9)	15.5
Net Earnings Attributable to Common Shareowners	149.6	161.7
Total Comprehensive (Loss) Income Attributable to Common Shareowners	(53.1)	270.0
Eliminations
Schedule of Condensed Consolidating Statement of Operations [Line Items]
NET SALES	(86.5)	(90.0)
Costs and Expenses
Cost of sales	(71.3)	(71.5)
Selling, general and administrative	(15.2)	(18.5)
Other - net	0	0
Restructuring charges	0	0
Interest expense, net	0	0
Costs and Expenses, Total	(86.5)	(90.0)
Earnings from continuing operations before income taxes	0	0
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries	0	0
Equity in earnings of subsidiaries	(270.6)	(255.2)
Earnings from continuing operations	(270.6)	(255.2)
Less: net loss attributable to non-controlling interests	0	0
Net earnings from continuing operations attributable to common shareowners	(270.6)	(255.2)
Net earnings from discontinued operations	0.9	(30.0)
Net Earnings Attributable to Common Shareowners	(269.7)	(285.2)
Total Comprehensive (Loss) Income Attributable to Common Shareowners	$ 26.7	$ (324.0)