CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Income Statement [Abstract]
Net Sales	$ 4,393.0	$ 3,798.9	$ 8,841.0	$ 7,519.7
Costs and Expenses
Cost of sales	3,185.9	2,437.1	6,328.5	4,770.1
Selling, general and administrative	849.4	772.0	1,798.6	1,488.9
Provision for credit losses	3.3	(4.9)	14.4	(2.7)
Other, net	79.1	42.5	141.1	90.5
(Gain) loss on sales of businesses	(0.2)	2.6	(0.2)	3.6
Asset impairment charge	168.4	0.0	168.4	0.0
Restructuring charges	19.5	10.4	72.2	12.2
Interest income	(6.5)	(2.7)	(9.3)	(5.6)
Interest expense	78.2	46.5	132.9	94.0
Costs and Expenses	4,377.1	3,303.5	8,646.6	6,451.0
Earnings from continuing operations before income taxes and equity interest	15.9	495.4	194.4	1,068.7
Income taxes on continuing operations	(62.8)	67.3	(39.9)	182.8
Net earnings from continuing operations before equity interest	78.7	428.1	234.3	885.9
Share of net earnings of equity method investment	0.0	4.4	0.0	6.2
Net earnings from continuing operations	78.7	432.5	234.3	892.1
Less: Net earnings (losses) attributable to non-controlling interests	0.1	(1.0)	0.2	(1.6)
Net earnings from continuing operations attributable to Stanley Black & Decker, Inc.	78.6	433.5	234.1	893.7
Less: Preferred stock dividends and beneficial conversion feature	0.0	4.8	0.0	14.2
Net Earnings from Continuing Operations Attributable to Common Shareowners	78.6	428.7	234.1	879.5
Add: Contract adjustment payments accretion	0.4	0.3	0.7	0.5
Net Earnings from Continuing Operations Attributable to Common Shareowners - Diluted	79.0	429.0	234.8	880.0
Earnings from discontinued operations before income taxes	6.4	32.4	28.6	63.5
Income taxes on discontinued operations	(2.6)	6.4	(0.2)	10.3
Net earnings from discontinued operations	9.0	26.0	28.8	53.2
Net Earnings Attributable to Common Shareowners - Diluted	88.0	455.0	263.6	933.2
Net Earnings Attributable to Stanley Black & Decker, Inc.	87.6	459.5	262.9	946.9
Total Comprehensive (Loss) Income Attributable to Common Shareowners	$ (190.1)	$ 479.1	$ (42.5)	$ 859.4
Basic earnings per share of common stock:
Continuing operations (in dollars per share)	$ 0.54	$ 2.70	$ 1.56	$ 5.56
Discontinuing operations (in dollars per share)	0.06	0.16	0.19	0.34
Total basic earnings per share of common share (in dollars per share)	0.60	2.87	1.75	5.90
Diluted earnings per share of common stock:
Continuing operations (in dollars per share)	0.51	2.60	1.47	5.34
Discontinued operations (in dollars per share)	0.06	0.16	0.18	0.32
Total diluted earnings per share of common stock (in dollars per share)	$ 0.57	$ 2.75	$ 1.65	$ 5.67