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INCOME TAXES - Income Tax Expense (Benefit) Attributable to Continuing Operations (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Deferred Tax Assets, Capital Loss Carryforwards	$ 32.9
Income (Loss) from Continuing Operations before Income Taxes, Domestic	214.5	$ 444.1	$ 715.2
Valuation allowance	1,065.0	626.7
Undistributed Earnings, Basic	5,200.0
Income Taxes Paid, Net	250.1	339.4	273.6
Current:
Federal	(23.7)	25.4	590.6
Foreign	195.9	175.0	224.6
State	6.5	24.8	25.4
Total current	178.7	225.2	840.6
Deferred:
Federal	5.7	29.7	(513.0)
Foreign	(32.9)	132.7	(33.0)
State	9.3	28.7	6.3
Total deferred	(17.9)	191.1	(103.0)
Income taxes	160.8	416.3	300.9
Income Tax Refund	72.5	43.7	28.5
Income (Loss) from Continuing Operations before Income Taxes, Foreign	915.5	578.0	812.6
Earnings before income taxes and equity interest	1,130.0	1,022.1	1,527.8
Continuing Operations [Member]
Deferred:
Total deferred	(17.9)	$ 191.1	$ (539.7)
The Black & Decker Corporation
Undistributed Earnings, Basic	$ 159.3

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