CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Income Statement [Abstract]
Net Sales	$ 4,119.6	$ 3,779.7	$ 12,960.6	$ 11,299.4
Costs and Expenses
Cost of sales	3,101.5	2,564.1	9,430.0	7,334.2
Selling, general and administrative	799.0	770.8	2,597.6	2,259.7
Provision for credit losses	0.8	2.7	15.2	0.0
Other, net	69.1	28.9	210.2	119.4
Loss on sales of businesses	8.6	0.0	8.4	3.6
Asset impairment charge	0.0	0.0	168.4	0.0
Restructuring charges	68.6	0.6	140.8	12.8
Interest income	(15.4)	(2.2)	(24.7)	(7.8)
Interest expense	91.7	45.6	224.6	139.6
Costs and Expenses	4,123.9	3,410.5	12,770.5	9,861.5
(Loss) earnings from continuing operations before income taxes and equity interest	(4.3)	369.2	190.1	1,437.9
Income taxes on continuing operations	(40.9)	(0.5)	(80.8)	182.3
Net earnings from continuing operations before equity interest	36.6	369.7	270.9	1,255.6
Share of net earnings of equity method investment	0.0	9.8	0.0	16.0
Net earnings from continuing operations	36.6	379.5	270.9	1,271.6
Less: Net (losses) earnings attributable to non-controlling interests	0.0	(0.1)	0.2	(1.7)
Net earnings from continuing operations attributable to Stanley Black & Decker, Inc.	36.6	379.6	270.7	1,273.3
Less: Preferred stock dividends and beneficial conversion feature	0.0	0.0	0.0	14.2
Net Earnings from Continuing Operations Attributable to Common Shareowners	36.6	379.6	270.7	1,259.1
Add: Contract adjustment payments accretion	0.3	0.4	1.0	0.9
Net Earnings from Continuing Operations Attributable to Common Shareowners - Diluted	36.9	380.0	271.7	1,260.0
Earnings from discontinued operations before income taxes (including pre-tax gain on Security sale of $1,220.0 million)	1,204.9	34.7	1,233.5	98.2
Income taxes on discontinued operations (including income taxes for gain on Security sale of $390.7 million)	396.9	0.1	396.7	10.4
Net earnings from discontinued operations	808.0	34.6	836.8	87.8
Net Earnings Attributable to Common Shareowners - Diluted	844.9	414.6	1,108.5	1,347.8
Net Earnings Attributable to Stanley Black & Decker, Inc.	844.6	414.2	1,107.5	1,361.1
Total Comprehensive Income Attributable to Common Shareowners	$ 569.3	$ 326.4	$ 526.8	$ 1,185.8
Basic earnings per share of common stock:
Continuing operations (in dollars per share)	$ 0.25	$ 2.38	$ 1.82	$ 7.94
Discontinuing operations (in dollars per share)	5.60	0.22	5.64	0.55
Total basic earnings per share of common share (in dollars per share)	5.85	2.60	7.46	8.50
Diluted earnings per share of common stock:
Continuing operations (in dollars per share)	0.24	2.30	1.72	7.64
Discontinued operations (in dollars per share)	5.26	0.21	5.30	0.53
Total diluted earnings per share of common stock (in dollars per share)	$ 5.50	$ 2.51	$ 7.02	$ 8.17