CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Income Statement [Abstract]
Net Sales	$ 4,448.0	$ 3,720.8
Costs and Expenses
Cost of sales	3,142.6	2,333.0
Selling, general and administrative	949.2	716.9
Provision for credit losses	11.1	2.2
Other, net	62.0	48.0
Loss on sale of business	0.0	1.0
Restructuring charges	52.7	1.8
Interest income	(2.8)	(2.9)
Interest expense	54.7	47.5
Costs and Expenses	4,269.5	3,147.5
Earnings from continuing operations before income taxes and equity interest	178.5	573.3
Income taxes on continuing operations	22.9	115.5
Net earnings from continuing operations before equity interest	155.6	457.8
Share of net earnings of equity method investment	0.0	1.8
Net earnings from continuing operations	155.6	459.6
Less: Net earnings (losses) attributable to non-controlling interests	0.1	(0.6)
Net earnings from continuing operations attributable to Stanley Black & Decker, Inc.	155.5	460.2
Less: Preferred stock dividends and beneficial conversion feature	0.0	9.4
Net Earnings from Continuing Operations Attributable to Common Shareowners	155.5	450.8
Add: Contract adjustment payments accretion	0.3	0.2
Net Earnings from Continuing Operations Attributable to Common Shareowners - Diluted	155.8	451.0
Earnings from discontinued operations before income taxes	22.2	31.1
Income taxes on discontinued operations	2.4	3.9
Net earnings from discontinued operations	19.8	27.2
Net Earnings Attributable to Common Shareowners - Diluted	175.6	478.2
Net Earnings Attributable to Stanley Black & Decker, Inc.	175.3	487.4
Total Comprehensive Income Attributable to Common Shareowners	$ 147.6	$ 380.3
Basic earnings per share of common stock:
Continuing operations (in dollars per share)	$ 1.00	$ 2.86
Discontinuing operations (in dollars per share)	0.13	0.17
Total basic earnings per share of common share (in dollars per share)	1.13	3.04
Diluted earnings per share of common stock:
Continuing operations (in dollars per share)	0.94	2.74
Discontinued operations (in dollars per share)	0.12	0.17
Total diluted earnings per share of common stock (in dollars per share)	$ 1.06	$ 2.91