PARENT AND SUBSIDIARY DEBT GUARANTEES - Condensed Consolidating Statement of Operations (Detail) (USD $) In Millions, unless otherwise specified	2 Months Ended	12 Months Ended
	Aug. 31, 2012	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Net Sales		$ 10,190.5	$ 9,435.5	$ 7,496.9
Costs and Expenses
Cost of sales		6,485.9	5,967.3	4,806.6
Selling, general and administrative		2,520.4	2,380.9	2,004.0
Other-net		301.9	255.7	184.9
Restructuring charges and asset impairments		175.1	69.3	231.7
Loss on debt extinguishment	45.5	45.5	0	0
Interest expense, net		134.1	113.9	101.1
Costs and Expenses, Total		9,662.9	8,787.1	7,328.3
(Loss) earnings from continuing operations before income taxes (benefit) and equity in earnings of subsidiaries		527.6	648.4	168.6
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries		78.9	50.1	18.0
Equity in earnings of subsidiaries		0	0	0
Earnings from continuing operations		448.7	598.3	150.6
Less: Net (loss) attributable to non-controlling interests		(0.8)	(0.1)	0
Net earnings from continuing operations attributable to common shareowners		449.5	598.4	150.6
Net earnings from discontinued operations		434.3	76.2	47.6
Net Earnings Attributable to Common Shareowners		883.8	674.6	198.2
Comprehensive income attributable to common shareowners		845.0	441.7	158.4
Parent Stanley Black & Decker, Inc.
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Net Sales		1,396.2	1,380.2	1,565.4
Costs and Expenses
Cost of sales		972.5	942.3	1,043.1
Selling, general and administrative		696.7	647.3	560.9
Other-net		(50.5)	(10.4)	38.4
Restructuring charges and asset impairments		3.4	7.0	25.4
Loss on debt extinguishment		9.2
Interest expense, net		93.1	76.0	56.0
Costs and Expenses, Total		1,724.4	1,662.2	1,723.8
(Loss) earnings from continuing operations before income taxes (benefit) and equity in earnings of subsidiaries		(328.2)	(282.0)	(158.4)
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries		(105.9)	(90.9)	(35.6)
Equity in earnings of subsidiaries		671.8	789.5	273.4
Earnings from continuing operations		449.5	598.4	150.6
Less: Net (loss) attributable to non-controlling interests		0	0	0
Net earnings from continuing operations attributable to common shareowners		449.5	598.4	150.6
Net earnings from discontinued operations		434.3	76.2	47.6
Net Earnings Attributable to Common Shareowners		883.8	674.6	198.2
Comprehensive income attributable to common shareowners		845.0	441.7	158.4
The Black & Decker Corporation
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Net Sales		0	0	0
Costs and Expenses
Cost of sales		0	0	0
Selling, general and administrative		19.6	3.0	96.3
Other-net		(100.2)	(87.7)	(207.7)
Restructuring charges and asset impairments		0	0	91.3
Loss on debt extinguishment		36.3
Interest expense, net		38.7	49.8	89.5
Costs and Expenses, Total		(5.6)	(34.9)	69.4
(Loss) earnings from continuing operations before income taxes (benefit) and equity in earnings of subsidiaries		5.6	34.9	(69.4)
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries		2.8	13.4	(29.2)
Equity in earnings of subsidiaries		567.3	525.0	138.7
Earnings from continuing operations		570.1	546.5	98.5
Less: Net (loss) attributable to non-controlling interests		0	0	0
Net earnings from continuing operations attributable to common shareowners		570.1	546.5	98.5
Net earnings from discontinued operations		458.7	43.3	24.0
Net Earnings Attributable to Common Shareowners		1,028.8	589.8	122.5
Comprehensive income attributable to common shareowners		570.0	521.7	(51.8)
Non-Guarantor Subsidiaries
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Net Sales		9,163.2	8,420.2	6,328.0
Costs and Expenses
Cost of sales		5,812.3	5,318.5	4,086.1
Selling, general and administrative		1,874.1	1,802.0	1,420.7
Other-net		452.6	353.8	354.2
Restructuring charges and asset impairments		171.7	62.3	115.0
Loss on debt extinguishment		0
Interest expense, net		2.3	(11.9)	(44.4)
Costs and Expenses, Total		8,313.0	7,524.7	5,931.6
(Loss) earnings from continuing operations before income taxes (benefit) and equity in earnings of subsidiaries		850.2	895.5	396.4
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries		182.0	127.6	82.8
Equity in earnings of subsidiaries		0	0	0
Earnings from continuing operations		668.2	767.9	313.6
Less: Net (loss) attributable to non-controlling interests		(0.8)	(0.1)	0
Net earnings from continuing operations attributable to common shareowners		669.0	768.0	313.6
Net earnings from discontinued operations		460.4	76.2	47.6
Net Earnings Attributable to Common Shareowners		1,129.4	844.2	361.2
Comprehensive income attributable to common shareowners		1,163.7	620.2	470.4
Eliminations
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Net Sales		(368.9)	(364.9)	(396.5)
Costs and Expenses
Cost of sales		(298.9)	(293.5)	(322.6)
Selling, general and administrative		(70.0)	(71.4)	(73.9)
Other-net		0	0	0
Restructuring charges and asset impairments		0	0	0
Loss on debt extinguishment		0
Interest expense, net		0	0	0
Costs and Expenses, Total		(368.9)	(364.9)	(396.5)
(Loss) earnings from continuing operations before income taxes (benefit) and equity in earnings of subsidiaries		0	0	0
Income taxes (benefit) on continuing operations before equity in earnings of subsidiaries		0	0	0
Equity in earnings of subsidiaries		(1,239.1)	(1,314.5)	(412.1)
Earnings from continuing operations		(1,239.1)	(1,314.5)	(412.1)
Less: Net (loss) attributable to non-controlling interests		0	0	0
Net earnings from continuing operations attributable to common shareowners		(1,239.1)	(1,314.5)	(412.1)
Net earnings from discontinued operations		(919.1)	(119.5)	(71.6)
Net Earnings Attributable to Common Shareowners		(2,158.2)	(1,434.0)	(483.7)
Comprehensive income attributable to common shareowners		$ (1,733.7)	$ (1,141.9)	$ (418.6)