$SWK
STANLEY BLACK & DECKER, INC. Stock $swk

$swk Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000009355620000006 Filed on February 21, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2018 Q3
Revenue	$3.714B	$3.635B	$3.633B
YoY Change	2.19%	0.0%	3.96%
Cost Of Revenue	$2.536B	$2.423B	$2.256B
YoY Change	4.66%	9.42%	7.12%
Gross Profit	$1.161B	$1.160B	$1.240B
YoY Change	0.06%	0.0%	0.09%
Gross Profit Margin	31.25%	31.91%	34.12%
Selling, General & Admin	$671.7M	$729.4M	$792.9M
YoY Change	-7.91%	-6.94%	3.86%
% of Gross Profit	57.88%	62.88%	63.97%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$139.8M	$125.5M	$129.7M
YoY Change	11.39%	2.28%	12.0%
% of Gross Profit	12.05%	10.82%	10.46%
Operating Expenses	$720.4M	$780.7M	$792.9M
YoY Change	-7.72%	-4.79%	3.86%
Operating Profit	$440.2M	$379.2M	$492.0M
YoY Change	16.09%	11.56%	-8.94%
Interest Expense	-$57.40M	-$47.00M	$72.10M
YoY Change	22.13%	21.45%	26.05%
% of Operating Profit	-13.04%	-12.39%	14.65%
Other Income/Expense, Net
YoY Change
Pretax Income	$236.8M	$171.0M	$304.9M
YoY Change	38.48%	-49.96%	-13.97%
Income Tax	$25.30M	$100.5M	$56.60M
% Of Pretax Income	10.68%	58.77%	18.56%
Net Earnings	$199.1M	-$106.8M	$230.5M
YoY Change	-286.42%	0.0%	-6.98%
Net Earnings / Revenue	5.36%	-2.94%	6.34%
Basic Earnings Per Share	$1.34	-$0.72	$1.55
Diluted Earnings Per Share	$1.32	-$0.72	$1.53
COMMON SHARES
Basic Shares Outstanding	152.0M shares	151.1M shares	148.0M shares
Diluted Shares Outstanding			150.6M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$298.0M	$289.0M	$369.0M
YoY Change	3.11%	-54.7%	-31.67%
Cash & Equivalents	$297.7M	$288.7M	$368.7M
Short-Term Investments
Other Short-Term Assets	$53.90M	$58.90M	$300.8M
YoY Change	-8.49%	47.99%	4.37%
Inventory	$2.255B	$2.374B	$2.650B
Prepaid Expenses	$395.4M	$240.5M
Receivables	$1.455B	$1.608B	$2.236B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.457B	$4.569B	$5.555B
YoY Change	-2.47%	0.23%	10.47%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.960B	$1.915B	$1.846B
YoY Change	2.31%	9.91%	10.07%
Goodwill	$7.381B	$8.957B	$9.007B
YoY Change	-17.6%	2.06%	3.77%
Intangibles	$3.622B	$3.484B	$3.547B
YoY Change	3.95%	-0.66%	-0.39%
Long-Term Investments
YoY Change
Other Assets	$1.321B	$482.3M	$492.0M
YoY Change	173.9%	-5.93%	-40.46%
Total Long-Term Assets	$16.14B	$14.84B	$14.89B
YoY Change	8.77%	2.06%	1.0%
TOTAL ASSETS
Total Short-Term Assets	$4.457B	$4.569B	$5.555B
Total Long-Term Assets	$16.14B	$14.84B	$14.89B
Total Assets	$20.60B	$19.41B	$20.45B
YoY Change	6.12%	1.62%	3.41%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.088B	$2.233B	$2.320B
YoY Change	-6.51%	10.5%	10.93%
Accrued Expenses	$1.978B	$1.390B	$1.344B
YoY Change	42.29%	0.15%	1.45%
Deferred Revenue
YoY Change
Short-Term Debt	$337.3M	$376.1M	$1.408B
YoY Change	-10.32%	6996.23%	144.04%
Long-Term Debt Due	$3.100M	$977.5M	$979.6M
YoY Change	-99.68%	0.0%	11159.77%
Total Short-Term Liabilities	$4.406B	$4.002B	$6.052B
YoY Change	10.1%	-8.88%	51.22%
LONG-TERM LIABILITIES
Long-Term Debt	$3.176B	$3.820B	$2.831B
YoY Change	-16.84%	35.06%	-25.86%
Other Long-Term Liabilities	$2.532B	$2.446B	$2.468B
YoY Change	3.5%	-2.43%	16.62%
Total Long-Term Liabilities	$5.708B	$6.266B	$5.299B
YoY Change	-8.9%	17.44%	-10.71%
TOTAL LIABILITIES
Total Short-Term Liabilities	$4.406B	$4.002B	$6.052B
Total Long-Term Liabilities	$5.708B	$6.266B	$5.299B
Total Liabilities	$10.11B	$10.27B	$11.35B
YoY Change	-1.5%	5.56%	14.23%
SHAREHOLDERS EQUITY
Retained Earnings	$6.773B	$6.219B	$6.424B
YoY Change	8.9%	3.67%	10.69%
Common Stock	$4.935B	$5.063B	$5.062B
YoY Change	-2.53%	-0.44%	-0.24%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.185B	$2.371B	$2.390B
YoY Change	-7.86%	23.24%	21.08%
Treasury Stock Shares	23.40M shares	25.60M shares
Shareholders Equity	$9.136B	$7.836B	$8.082B
YoY Change
Total Liabilities & Shareholders Equity	$20.60B	$19.41B	$20.45B
YoY Change	6.12%	1.62%	3.41%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$199.1M	-$106.8M	$230.5M
YoY Change	-286.42%	0.0%	-6.98%
Depreciation, Depletion And Amortization	$139.8M	$125.5M	$129.7M
YoY Change	11.39%	2.28%	12.0%
Cash From Operating Activities	$1.243B	$1.221B	$191.5M
YoY Change	1.84%	70.69%	65.66%
INVESTING ACTIVITIES
Capital Expenditures	-$141.2M	-$164.7M	$109.4M
YoY Change	-14.27%	0.12%	20.22%
Acquisitions			$15.10M
YoY Change			-90.07%
Other Investing Activities	$72.50M	$23.80M	-$2.100M
YoY Change	204.62%	-91.26%	-125.93%
Cash From Investing Activities	-$68.70M	-$140.9M	-$134.4M
YoY Change	-51.24%	-230.71%	317.39%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$289.8M
YoY Change			-2170.0%
Debt Paid & Issued, Net			$0.00
YoY Change
Cash From Financing Activities	-1.203B	-1.137B	-$97.60M
YoY Change	5.8%	74.8%	-39.72%
NET CHANGE
Cash From Operating Activities	1.243B	1.221B	$191.5M
Cash From Investing Activities	-68.70M	-140.9M	-$134.4M
Cash From Financing Activities	-1.203B	-1.137B	-$97.60M
Net Change In Cash	-28.80M	-57.50M	-$34.70M
YoY Change	-49.91%	-133.37%	-38.26%
FREE CASH FLOW
Cash From Operating Activities	$1.243B	$1.221B	$191.5M
Capital Expenditures	-$141.2M	-$164.7M	$109.4M
Free Cash Flow	$1.385B	$1.386B	$82.10M
YoY Change	-0.07%	57.5%	233.74%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000093556
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CY2017Q3	swk	Business Combination Acquisition Related Costs Diluted Earnings Per Share Impact BusinessCombinationAcquisitionRelatedCostsDilutedEarningsPerShareImpact	-0.64
CY2017Q3	swk	Business Combination Acquisition Related Costs Diluted Earnings Per Share Impact BusinessCombinationAcquisitionRelatedCostsDilutedEarningsPerShareImpact	-0.43
CY2017Q4	swk	Business Combination Acquisition Related Costs Diluted Earnings Per Share Impact BusinessCombinationAcquisitionRelatedCostsDilutedEarningsPerShareImpact	-2.83
CY2018Q1	swk	Business Combination Acquisition Related Costs Diluted Earnings Per Share Impact BusinessCombinationAcquisitionRelatedCostsDilutedEarningsPerShareImpact	-0.29
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CY2017Q3	swk	Business Combination Acquisition Related Costs Netof Tax BusinessCombinationAcquisitionRelatedCostsNetofTax	98000000	USD
CY2017Q3	swk	Business Combination Acquisition Related Costs Netof Tax BusinessCombinationAcquisitionRelatedCostsNetofTax	66000000	USD
CY2017Q4	swk	Business Combination Acquisition Related Costs Netof Tax BusinessCombinationAcquisitionRelatedCostsNetofTax	424000000	USD
CY2018Q1	swk	Business Combination Acquisition Related Costs Netof Tax BusinessCombinationAcquisitionRelatedCostsNetofTax	43000000	USD
CY2018Q2	swk	Business Combination Acquisition Related Costs Netof Tax BusinessCombinationAcquisitionRelatedCostsNetofTax	44000000	USD
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CY2019Q4	swk	Business Combination Acquisition Related Costs Netof Tax BusinessCombinationAcquisitionRelatedCostsNetofTax	131000000	USD
CY2018Q4	swk	Preferred Stock Shares Unissued PreferredStockSharesUnissued	9250000	shares
CY2019Q4	swk	Preferred Stock Shares Unissued PreferredStockSharesUnissued	8500000	shares
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CY2019	dei	Trading Symbol TradingSymbol	SWK
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
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CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-28
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-05224
CY2019	dei	Entity Registrant Name EntityRegistrantName	STANLEY BLACK & DECKER, INC.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	CT
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	06-0548860
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CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	CT
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CY2019	dei	Security12b Title Security12bTitle	Common Stock
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CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	885500000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	380000000.0	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1559800000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	297700000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	288700000	USD
CY2019Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	1454600000	USD
CY2018Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	1607800000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	2255000000.0	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	2373500000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	395400000	USD
CY2018Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	240500000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	53900000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	58900000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	4456600000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1321000000.0	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	482300000	USD
CY2019Q4	us-gaap	Assets Assets	20596600000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	4569400000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1959500000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1915200000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	9237500000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	8956700000	USD
CY2019Q4	swk	Customer Relationship Intangible Assets Net CustomerRelationshipIntangibleAssetsNet	1317300000	USD
CY2018Q4	swk	Customer Relationship Intangible Assets Net CustomerRelationshipIntangibleAssetsNet	1165200000	USD
CY2019Q4	swk	Trade Names Net TradeNamesNet	2253600000	USD
CY2018Q4	swk	Trade Names Net TradeNamesNet	2254800000	USD
CY2019Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	51100000	USD
CY2018Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	64400000	USD
CY2018Q4	us-gaap	Assets Assets	19408000000.0	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	337300000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	376100000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2500000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2087800000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2233200000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1977500000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1389800000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	4405700000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	4001600000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3819800000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	731200000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	705300000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	609400000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	595400000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2531700000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2446000000.0	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	1500000000.0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	750000000.0	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	442300000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	442300000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	6772800000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	6219000000.0	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	4492900000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	4621000000.0	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1884600000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1814300000	USD
CY2019Q4	us-gaap	Unearned Esop Shares UnearnedESOPShares	2300000	USD
CY2018Q4	us-gaap	Unearned Esop Shares UnearnedESOPShares	10500000	USD
CY2019Q4	swk	Stockholders Equity Subtotal StockholdersEquitySubtotal	11321100000	USD
CY2018Q4	swk	Stockholders Equity Subtotal StockholdersEquitySubtotal	10207500000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2184800000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2371300000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	9136300000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	7836200000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	5900000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	3700000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9142200000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7839900000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	20596600000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	19408000000.0	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	958000000.0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	605800000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1226900000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	372800000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	331200000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	296900000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	187400000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	175300000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	163800000	USD
CY2019	swk	Inventorystepupamortization Inventorystepupamortization	7400000	USD
CY2018	swk	Inventorystepupamortization Inventorystepupamortization	9600000	USD
CY2017	swk	Inventorystepupamortization Inventorystepupamortization	43200000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	17000000.0	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-800000	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	264100000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-17900000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	88800000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	76500000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	78700000	USD
CY2019	swk	Provision For Doubtful Accounts Including Divestiture ProvisionForDoubtfulAccountsIncludingDivestiture	33000000.0	USD
CY2018	swk	Provision For Doubtful Accounts Including Divestiture ProvisionForDoubtfulAccountsIncludingDivestiture	28000000.0	USD
CY2017	swk	Provision For Doubtful Accounts Including Divestiture ProvisionForDoubtfulAccountsIncludingDivestiture	16300000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-11200000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-17900000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	191100000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-103000000.0	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	13800000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-10100000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-24400000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-137800000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	48800000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	905600000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-137700000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	401600000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	303000000.0	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-169100000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	211000000.0	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	240400000	USD
CY2019	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	8500000	USD
CY2018	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	1500000	USD
CY2017	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	1600000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	183600000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	4400000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	5900000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	37300000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-28900000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-84900000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	123600000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	70100000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	123300000	USD
CY2019	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-47600000	USD
CY2018	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-44700000	USD
CY2017	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-66500000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-92100000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	20500000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	16200000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1505700000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1260900000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	668500000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	424700000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	492100000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	442400000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	100100000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	45200000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	50200000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	685400000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	524600000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	2583500000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	76600000	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	-3000000.0	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	756900000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	260600000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	21700000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	17900000	USD
CY2019	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-8000000.0	USD
CY2018	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-25700000	USD
CY2017	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	23300000	USD
CY2019	us-gaap	Supplemental Deferred Purchase Price SupplementalDeferredPurchasePrice	0	USD
CY2018	us-gaap	Supplemental Deferred Purchase Price SupplementalDeferredPurchasePrice	0	USD
CY2017	us-gaap	Supplemental Deferred Purchase Price SupplementalDeferredPurchasePrice	704700000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	22600000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	18600000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	11500000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1208600000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-989100000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1566800000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1150000000.0	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	977500000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2800000	USD
CY2019	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	496200000	USD
CY2018	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	990000000.0	USD
CY2017	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-18100000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	433200000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-76700000	USD
CY2019	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	40300000	USD
CY2018	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	40300000	USD
CY2017	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	20000000.0	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	27500000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	527100000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	28700000	USD
CY2019	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	735000000.0	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-36200000	USD
CY2018	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	726000000.0	USD
CY2019	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	19200000	USD
CY2018	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	57300000	USD
CY2017	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	25100000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	146000000.0	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	38500000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	90800000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	402000000.0	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	384900000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	362900000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-12600000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5400000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-292500000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-561600000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	295200000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-1400000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-53900000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	81000000.0	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	3200000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-343700000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-522100000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	311400000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	655100000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1177200000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	314600000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	311400000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	655100000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	297700000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	288700000	USD
CY2019Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	16900000	USD
CY2018Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	22700000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	314600000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	311400000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6380200000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1226900000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	332500000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	362900000	USD
CY2017	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	90800000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8305000000.0	USD
CY2017	swk	Treasury Stock Forward Share Repurchase Contracts TreasuryStockForwardShareRepurchaseContracts	28700000	USD
CY2017	us-gaap	Accelerated Share Repurchase Program Adjustment AcceleratedShareRepurchaseProgramAdjustment	726000000.0	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-117100000	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	3400000	USD
CY2017	swk	Purchase Of Call Options PurchaseOfCallOptions	-25100000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	78700000	USD
CY2017	swk	Employee Stock Ownership Plan And Related Tax Benefit EmployeeStockOwnershipPlanAndRelatedTaxBenefit	7100000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	605800000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-225200000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	384900000	USD
CY2018	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	38500000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	527100000	USD
CY2018	swk	Purchase Of Call Options PurchaseOfCallOptions	-57300000	USD
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-300000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	76500000	USD
CY2018	swk	Employee Stock Ownership Plan And Related Tax Benefit EmployeeStockOwnershipPlanAndRelatedTaxBenefit	8300000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7839900000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	958000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-70300000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-70300000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	402000000.0	USD
CY2019	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	146000000.0	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	27500000	USD
CY2019	us-gaap	Accelerated Share Repurchase Program Adjustment AcceleratedShareRepurchaseProgramAdjustment	734500000	USD
CY2019	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	114200000	USD
CY2019	swk	Purchase Of Call Options PurchaseOfCallOptions	-19200000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	88800000	USD
CY2019	swk	Employee Stock Ownership Plan And Related Tax Benefit EmployeeStockOwnershipPlanAndRelatedTaxBenefit	8200000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9142200000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1284000000.0	USD
CY2018Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1437100000	USD
CY2019Q4	us-gaap	Notes And Loans Receivable Gross Current NotesAndLoansReceivableGrossCurrent	156700000	USD
CY2018Q4	us-gaap	Notes And Loans Receivable Gross Current NotesAndLoansReceivableGrossCurrent	150000000.0	USD
CY2019Q4	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	126300000	USD
CY2018Q4	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	122700000	USD
CY2019Q4	swk	Trade Accounts And Notes Receivable Gross Current TradeAccountsAndNotesReceivableGrossCurrent	1567000000.0	USD
CY2018Q4	swk	Trade Accounts And Notes Receivable Gross Current TradeAccountsAndNotesReceivableGrossCurrent	1709800000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	112400000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	102000000.0	USD
CY2019Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	1454600000	USD
CY2018Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	1607800000	USD
CY2019Q3	us-gaap	Financing Receivable Threshold Period Past Due Writeoff FinancingReceivableThresholdPeriodPastDueWriteoff	P90D
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Receivable CapitalLeasesFutureMinimumPaymentsReceivable	210500000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P4Y
CY2019	swk	Share Based Compensation Arrangements By Share Based Payment Award Number Of Years Of Service For Eligibility ShareBasedCompensationArrangementsByShareBasedPaymentAwardNumberOfYearsOfServiceForEligibility	P10Y
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Receivable Current CapitalLeasesFutureMinimumPaymentsReceivableCurrent	78200000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Two Years CapitalLeasesFutureMinimumPaymentsReceivableInTwoYears	59700000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Three Years CapitalLeasesFutureMinimumPaymentsReceivableInThreeYears	39800000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Four Years CapitalLeasesFutureMinimumPaymentsReceivableInFourYears	20600000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Five Years CapitalLeasesFutureMinimumPaymentsReceivableInFiveYears	12200000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Receivable Due Thereafter CapitalLeasesFutureMinimumPaymentsReceivableDueThereafter	0	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	47700000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	45500000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	1300000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	700000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	200000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	0	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	0	USD
CY2019	us-gaap	Sales Type Lease Revenue SalesTypeLeaseRevenue	88900000	USD
CY2019	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	148900000	USD
CY2019	us-gaap	Sales Type Lease Lease Income SalesTypeLeaseLeaseIncome	35300000	USD
CY2019Q4	us-gaap	Derecognized Assets Securitized Or Assetbacked Financing Arrangement Assets And Any Other Financial Assets Managed Together Principal Amount Outstanding DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding	100000000.0	USD
CY2018Q4	us-gaap	Derecognized Assets Securitized Or Assetbacked Financing Arrangement Assets And Any Other Financial Assets Managed Together Principal Amount Outstanding DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding	100100000	USD
CY2019	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	495400000	USD
CY2018	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	194300000	USD
CY2019	swk	Cash Flows Between Transferor And Transferee Payment To Purchaser CashFlowsBetweenTransferorAndTransfereePaymentToPurchaser	495500000	USD
CY2018	swk	Cash Flows Between Transferor And Transferee Payment To Purchaser CashFlowsBetweenTransferorAndTransfereePaymentToPurchaser	94300000	USD
CY2019	us-gaap	Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale	-3600000	USD
CY2018	us-gaap	Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale	-700000	USD
CY2019	us-gaap	Cash Flows Between Transferee And Transferor Servicing Fees CashFlowsBetweenTransfereeAndTransferorServicingFees	900000	USD
CY2018	us-gaap	Cash Flows Between Transferee And Transferor Servicing Fees CashFlowsBetweenTransfereeAndTransferorServicingFees	200000	USD
CY2019Q4	us-gaap	Deferred Revenue DeferredRevenue	209800000	USD
CY2018Q4	us-gaap	Deferred Revenue DeferredRevenue	202000000.0	USD
CY2019Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	108900000	USD
CY2018Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	98600000	USD
CY2019	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	96400000	USD
CY2018	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	89300000	USD
CY2019Q4	us-gaap	Customer Advances And Progress Payments For Long Term Contracts Or Programs CustomerAdvancesAndProgressPaymentsForLongTermContractsOrPrograms	1118000000	USD
CY2019Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1526000000.0	USD
CY2018Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1707400000	USD
CY2019Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	162000000.0	USD
CY2018Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	150800000	USD
CY2019Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	567000000.0	USD
CY2018Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	515300000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	2255000000.0	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	2373500000	USD
CY2019Q4	us-gaap	Lifo Inventory Amount LIFOInventoryAmount	1100000000	USD
CY2018Q4	us-gaap	Lifo Inventory Amount LIFOInventoryAmount	1200000000	USD
CY2019Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	78100000	USD
CY2018Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	44600000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	4290800000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3970100000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2331300000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2054900000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1959500000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1915200000	USD
CY2019	us-gaap	Depreciation Depreciation	325200000	USD
CY2018	us-gaap	Depreciation Depreciation	288400000	USD
CY2017	us-gaap	Depreciation Depreciation	253600000	USD
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	47600000	USD
CY2018	us-gaap	Adjustment For Amortization AdjustmentForAmortization	42800000	USD
CY2017	us-gaap	Adjustment For Amortization AdjustmentForAmortization	43300000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	372800000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	331200000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	296900000	USD
CY2019	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	5
CY2018	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	6
CY2017	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	4	Acquisition
CY2019	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	14524600000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	14448600000	USD
CY2019	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	977800000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	620300000	USD
CY2019	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	6.49
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	4.09
CY2017Q4	us-gaap	Goodwill Goodwill	8776100000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	340300000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-159700000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	8956700000	USD
CY2018Q4	swk	Accrued Rebates And Returns AccruedRebatesAndReturns	116600000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	327400000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-46600000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	9237500000	USD
CY2019	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	33800000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	3209000000.0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1773300000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2884400000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1598900000	USD
CY2019Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	2186000000	USD
CY2018Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	2199000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	187400000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	175300000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	163800000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	175100000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	166500000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	157300000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	148300000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	139500000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	649000000.0	USD
CY2019Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	262400000	USD
CY2018Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	297000000.0	USD
CY2019Q4	swk	Accrued Income Taxes And Other Current AccruedIncomeTaxesAndOtherCurrent	243900000	USD
CY2018Q4	swk	Accrued Income Taxes And Other Current AccruedIncomeTaxesAndOtherCurrent	67500000	USD
CY2019Q4	swk	Accrued Rebates And Returns AccruedRebatesAndReturns	112000000.0	USD
CY2019Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	69800000	USD
CY2018Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	69400000	USD
CY2019Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	147800000	USD
CY2018Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	108800000	USD
CY2019Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	22400000	USD
CY2018Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	7500000	USD
CY2019Q4	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	69600000	USD
CY2018Q4	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	65500000	USD
CY2019Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	108900000	USD
CY2018Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	98600000	USD
CY2019Q4	swk	Accruedfreightcosts Accruedfreightcosts	72900000	USD
CY2018Q4	swk	Accruedfreightcosts Accruedfreightcosts	87300000	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	57800000	USD
CY2018Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	58100000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	249200000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	0	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	141300000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	419500000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	413500000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1977500000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1389800000	USD
CY2019Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	3204300000	USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1900000	USD
CY2019Q4	us-gaap	Deferred Gain Loss On Discontinuation Of Fair Value Hedge DeferredGainLossOnDiscontinuationOfFairValueHedge	-14500000	USD
CY2019Q4	swk	Fair Value Adjustment Of Debt FairValueAdjustmentOfDebt	9000000.0	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	17400000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	3179500000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	3822300000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	3100000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2500000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3176400000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3819800000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	400000000.0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	754300000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2050000000.000	USD
CY2019Q4	swk	Fair Value Adjustment Of Interest Rate Swap FairValueAdjustmentOfInterestRateSwap	16400000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	17400000	USD
CY2019	us-gaap	Interest Paid InterestPaid	252900000	USD
CY2018	us-gaap	Interest Paid InterestPaid	249600000	USD
CY2017	us-gaap	Interest Paid InterestPaid	198300000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	990000000.0	USD
CY2019Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	900000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	9100000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	977500000	USD
CY2014Q4	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	45300000	USD
CY2015	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	100000	USD
CY2015	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	300000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-17900000	USD
CY2017Q2	swk	Commercial Paper Maximum Borrowing Capacity CommercialPaperMaximumBorrowingCapacity	3000000000.0	USD
CY2019Q4	swk	Commercial Paper Amount Outstanding CommercialPaperAmountOutstanding	335500000	USD
CY2018Q4	swk	Commercial Paper Amount Outstanding CommercialPaperAmountOutstanding	228900000	USD
CY2018Q3	swk	Commercial Paper Maximum Borrowing Capacity CommercialPaperMaximumBorrowingCapacity	3000000000.0	USD
CY2019Q4	swk	Commercial Paper Maximum Borrowing Capacity CommercialPaperMaximumBorrowingCapacity	3000000000.0	USD
CY2019Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	3500000000	USD
CY2019	swk	Paymentsfor Proceedsfrom Derivative Instruments PaymentsforProceedsfromDerivativeInstruments	69900000	USD
CY2018	swk	Paymentsfor Proceedsfrom Derivative Instruments PaymentsforProceedsfromDerivativeInstruments	2400000	USD
CY2017	swk	Paymentsfor Proceedsfrom Derivative Instruments PaymentsforProceedsfromDerivativeInstruments	2600000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	9636700000	USD
CY2019	us-gaap	Interest Expense InterestExpense	284300000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	9131300000	USD
CY2018	us-gaap	Interest Expense InterestExpense	277900000	USD
CY2019	us-gaap	Interest Expense InterestExpense	284300000	USD
CY2018	us-gaap	Interest Expense InterestExpense	277900000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	955800000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	605200000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	1227300000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	148365000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	148919000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	149629000	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2193000	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2724000	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2820000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150558000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151643000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	152449000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.44
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.06
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.20
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.35
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.99
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.05
CY2019Q4	swk	Equityunitsissued Equityunitsissued	7500000	shares
CY2019Q4	swk	Equity Unit EquityUnit	750000000.0	USD
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	750000	shares
CY2019Q4	swk	Preferred Stock Conversion Rate Number Of Common Stock Shares PreferredStockConversionRateNumberOfCommonStockShares	5.2263
CY2019Q4	us-gaap	Option Indexed To Issuers Equity Strike Price1 OptionIndexedToIssuersEquityStrikePrice1	191.34
CY2017Q3	swk	Equityunitsissued Equityunitsissued	7500000	shares
CY2017Q3	swk	Equity Unit EquityUnit	750000000.0	USD
CY2017Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	750000	shares
CY2017Q3	swk	Preferred Stock Conversion Rate Number Of Common Stock Shares PreferredStockConversionRateNumberOfCommonStockShares	6.1627
CY2017Q3	us-gaap	Option Indexed To Issuers Equity Strike Price1 OptionIndexedToIssuersEquityStrikePrice1	162.27
CY2019	swk	Preferred Stock Conversion Rate Number Of Common Stock Shares PreferredStockConversionRateNumberOfCommonStockShares	6.1954
CY2017Q4	us-gaap	Option Indexed To Issuers Equity Strike Price1 OptionIndexedToIssuersEquityStrikePrice1	161.41
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	151302450	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	154038031	shares
CY2015Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	152559767	shares
CY2019	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	2391336	shares
CY2018	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	941854	shares
CY2017	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	1680339	shares
CY2019	us-gaap	Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	187377	shares
CY2018	us-gaap	Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	3677435	shares
CY2017	us-gaap	Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	202075	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	153506409	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	151302450	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	154038031	shares
CY2019Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	3645510	shares
CY2018Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	3645510	shares
CY2017Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	3645510	shares
CY2019Q4	swk	Common Stock Shares Outstanding Excluding Shares Subject To Forward Purchase Contract CommonStockSharesOutstandingExcludingSharesSubjectToForwardPurchaseContract	149860899	shares
CY2018Q4	swk	Common Stock Shares Outstanding Excluding Shares Subject To Forward Purchase Contract CommonStockSharesOutstandingExcludingSharesSubjectToForwardPurchaseContract	147656940	shares
CY2017Q4	swk	Common Stock Shares Outstanding Excluding Shares Subject To Forward Purchase Contract CommonStockSharesOutstandingExcludingSharesSubjectToForwardPurchaseContract	150392521	shares
CY2018Q2	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1399732	shares
CY2018Q2	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	200000000.0	USD
CY2018Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	2086792	shares
CY2018Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	300000000.0	USD
CY2015Q2	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	3645510	shares
CY2015Q2	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	350000000.0	USD
CY2019Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	12924290	shares
CY2018Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	15884117	shares
CY2019	swk	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Historical Volatility Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsHistoricalVolatilityTerm	P5Y3M
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7352263	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	107.36
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1225750	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	150.69
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1851761	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	78.17
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	271581	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	144.05
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6454671	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	122.42
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3720639	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	105.71
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	144700000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	34700000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	143700000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	18300000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	72700000	USD
CY2019	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	25800000	USD
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	2300000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	18300000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6454671	shares
CY2019	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P6Y9M29D
CY2019Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	122.42
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3720639	shares
CY2019	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P5Y2M8D
CY2019Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	105.71
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	283500000	USD
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	225500000	USD
CY2019	us-gaap	Stock Granted During Period Value Sharebased Compensation Gross StockGrantedDuringPeriodValueSharebasedCompensationGross	6800000	USD
CY2018	us-gaap	Stock Granted During Period Value Sharebased Compensation Gross StockGrantedDuringPeriodValueSharebasedCompensationGross	3400000	USD
CY2017	us-gaap	Stock Granted During Period Value Sharebased Compensation Gross StockGrantedDuringPeriodValueSharebasedCompensationGross	7000000.0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1	P3Y
CY2019	swk	Earnings Per Share And Return On Capital Employed As Percentage Of Share Based Payment EarningsPerShareAndReturnOnCapitalEmployedAsPercentageOfShareBasedPayment	0.75
CY2019	swk	Market Based Elements As Percentage Of Share Based Payment MarketBasedElementsAsPercentageOfShareBasedPayment	0.25
CY2019	swk	Market Based Elements As Percentage Of Share Based Payment MarketBasedElementsAsPercentageOfShareBasedPayment	0.25
CY2019Q4	swk	Equityunitsissued Equityunitsissued	7500000	shares
CY2019Q4	swk	Equity Unit EquityUnit	750000000.0	USD
CY2019Q4	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	100
CY2019Q4	us-gaap	Forward Contract Indexed To Issuers Equity Forward Rate ForwardContractIndexedToIssuersEquityForwardRate	100
CY2019Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2019Q4	swk	Equityunitproceeds Equityunitproceeds	735000000.0	USD
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	750000	shares
CY2019Q4	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	750000000.0	USD
CY2019Q4	swk	Purchase Of Call Options PurchaseOfCallOptions	19200000	USD
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	750000	shares
CY2019Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2019Q4	swk	Preferred Stock Conversion Rate Number Of Common Stock Shares PreferredStockConversionRateNumberOfCommonStockShares	5.2263
CY2019Q4	us-gaap	Option Indexed To Issuers Equity Strike Price1 OptionIndexedToIssuersEquityStrikePrice1	191.34
CY2019Q4	us-gaap	Forward Contract Indexed To Issuers Equity Shares ForwardContractIndexedToIssuersEquityShares	4700000	shares
CY2019Q4	swk	Equity Units Conversion Rate Number Of Common Stock Shares EquityUnitsConversionRateNumberOfCommonStockShares	0.6272	shares
CY2019Q4	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	159.45
CY2019Q4	us-gaap	Forward Contract Indexed To Issuers Equity Forward Rate ForwardContractIndexedToIssuersEquityForwardRate	100
CY2019Q4	us-gaap	Forward Contract Indexed To Issuers Equity Settlement Alternatives Cash At Fair Value ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue	114200000	USD
CY2019Q4	swk	Preferred Stock Conversion Rate Number Of Common Stock Shares PreferredStockConversionRateNumberOfCommonStockShares	5.2263
CY2019	swk	Purchase Of Call Options PurchaseOfCallOptions	-19200000	USD
CY2019	us-gaap	Option Indexed To Issuers Equity Shares OptionIndexedToIssuersEquityShares	3900000	shares
CY2019	swk	Purchase Of Call Options PurchaseOfCallOptions	-19200000	USD
CY2018Q1	us-gaap	Option Indexed To Issuers Equity Shares OptionIndexedToIssuersEquityShares	3200000	shares
CY2018Q1	swk	Purchase Of Call Options PurchaseOfCallOptions	57300000	USD
CY2018Q3	us-gaap	Option Indexed To Issuers Equity Settlement Alternatives Cash At Fair Value OptionIndexedToIssuersEquitySettlementAlternativesCashAtFairValue	56400000	USD
CY2017Q3	swk	Equityunitsissued Equityunitsissued	7500000	shares
CY2017Q3	swk	Equity Unit EquityUnit	750000000.0	USD
CY2017Q3	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	100
CY2017Q3	us-gaap	Forward Contract Indexed To Issuers Equity Forward Rate ForwardContractIndexedToIssuersEquityForwardRate	100
CY2017Q3	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2017Q3	swk	Equityunitproceeds Equityunitproceeds	726000000.0	USD
CY2017Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	750000	shares
CY2017Q3	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	750000000.0	USD
CY2017Q3	swk	Purchase Of Call Options PurchaseOfCallOptions	25100000	USD
CY2017Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	750000	shares
CY2017Q3	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2017Q3	swk	Preferred Stock Conversion Rate Number Of Common Stock Shares PreferredStockConversionRateNumberOfCommonStockShares	6.1627
CY2017Q3	us-gaap	Option Indexed To Issuers Equity Strike Price1 OptionIndexedToIssuersEquityStrikePrice1	162.27
CY2019	swk	Preferred Stock Conversion Rate Number Of Common Stock Shares PreferredStockConversionRateNumberOfCommonStockShares	6.1954
CY2019	us-gaap	Option Indexed To Issuers Equity Strike Price1 OptionIndexedToIssuersEquityStrikePrice1	161.41
CY2019	us-gaap	Forward Contract Indexed To Issuers Equity Forward Rate ForwardContractIndexedToIssuersEquityForwardRate	100
CY2019	us-gaap	Forward Contract Indexed To Issuers Equity Shares ForwardContractIndexedToIssuersEquityShares	5400000	shares
CY2017Q3	swk	Equity Units Conversion Rate Number Of Common Stock Shares EquityUnitsConversionRateNumberOfCommonStockShares	0.7241	shares
CY2017Q2	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	138.10
CY2017Q4	swk	Equity Units Conversion Rate Number Of Common Stock Shares EquityUnitsConversionRateNumberOfCommonStockShares	0.7279	shares
CY2019Q4	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	137.38
CY2017Q4	us-gaap	Forward Contract Indexed To Issuers Equity Forward Rate ForwardContractIndexedToIssuersEquityForwardRate	100
CY2019Q4	us-gaap	Derivative Forward Interest Rate DerivativeForwardInterestRate	0.05375
CY2017Q2	us-gaap	Forward Contract Indexed To Issuers Equity Settlement Alternatives Cash At Fair Value ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue	117100000	USD
CY2019	us-gaap	Accretion Expense AccretionExpense	1300000	USD
CY2019Q4	us-gaap	Forward Contract Indexed To Issuers Equity Settlement Alternatives Cash At Fair Value ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue	19700000	USD
CY2017Q3	swk	Preferred Stock Conversion Rate Number Of Common Stock Shares PreferredStockConversionRateNumberOfCommonStockShares	6.1627
CY2018	swk	Shares Purchased Transaction Costs SharesPurchasedTransactionCosts	25100000	USD
CY2018	us-gaap	Option Indexed To Issuers Equity Shares OptionIndexedToIssuersEquityShares	4600000	shares
CY2018	swk	Shares Purchased Transaction Costs SharesPurchasedTransactionCosts	25100000	USD
CY2019Q4	us-gaap	Option Indexed To Issuers Equity Settlement Alternatives Cash At Fair Value OptionIndexedToIssuersEquitySettlementAlternativesCashAtFairValue	36000000.0	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1589100000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-241100000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-15900000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-225200000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1814300000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-69800000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	500000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-70300000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1884600000	USD
CY2019	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	700000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	28800000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	29000000.0	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25400000	USD
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	7200000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	7000000.0	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	4800000	USD
CY2019Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	226212	shares
CY2018Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	207049	shares
CY2017Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	133694	shares
CY2019	us-gaap	Employee Stock Ownership Plan Esop Gain Loss On Transactions In Deferred Shares EmployeeStockOwnershipPlanESOPGainLossOnTransactionsInDeferredShares	-500000	USD
CY2018	us-gaap	Employee Stock Ownership Plan Esop Gain Loss On Transactions In Deferred Shares EmployeeStockOwnershipPlanESOPGainLossOnTransactionsInDeferredShares	-400000	USD
CY2017	us-gaap	Employee Stock Ownership Plan Esop Gain Loss On Transactions In Deferred Shares EmployeeStockOwnershipPlanESOPGainLossOnTransactionsInDeferredShares	-1300000	USD
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	7200000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	7000000.0	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	4800000	USD
CY2019	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	7200000	USD
CY2018	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	7300000	USD
CY2017	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	7200000	USD
CY2019	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	36200000	USD
CY2018	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	12900000	USD
CY2017	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	27500000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-300000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	0	USD
CY2017	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	0	USD
CY2017	us-gaap	Defined Benefit Plan Settlements Benefit Obligation DefinedBenefitPlanSettlementsBenefitObligation	12200000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	63300000	USD
CY2019	swk	Defined Benefit Plan Other Comprehensive Income Amortization Of Actuarial Gain Loss During Period Before Tax DefinedBenefitPlanOtherComprehensiveIncomeAmortizationOfActuarialGainLossDuringPeriodBeforeTax	-15300000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	2100000	USD
CY2019	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-1000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	4200000	USD
CY2019	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	53300000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Amortization Next Fiscal Year DefinedBenefitPlanExpectedAmortizationNextFiscalYear	19700000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	2768000000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	2513000000	USD
CY2019Q4	swk	Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	1448600000	USD
CY2018Q4	swk	Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	1301700000	USD
CY2019Q4	swk	Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	1391200000	USD
CY2018Q4	swk	Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	1252700000	USD
CY2019Q4	swk	Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	1092000000.0	USD
CY2018Q4	swk	Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	969700000	USD
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0470
CY2019	swk	Defined Benefit Plan Percentage Of Pension Liability Invested In Fixed Income Securities DefinedBenefitPlanPercentageOfPensionLiabilityInvestedInFixedIncomeSecurities	0.50
CY2019	swk	Defined Benefit Plan Target Allocation Percentage Of Assetsequity Securities Range Minimum DefinedBenefitPlanTargetAllocationPercentageOfAssetsequitySecuritiesRangeMinimum	0.20
CY2019	swk	Defined Benefit Plan Target Allocation Percentage Of Assetsequity Securities Range Maximum DefinedBenefitPlanTargetAllocationPercentageOfAssetsequitySecuritiesRangeMaximum	0.40
CY2019	swk	Defined Benefit Plan Target Allocation Percentage Of Assets Fixed Income Securities Range Minimum DefinedBenefitPlanTargetAllocationPercentageOfAssetsFixedIncomeSecuritiesRangeMinimum	0.50
CY2019	swk	Defined Benefit Plan Target Allocation Percentage Of Assets Fixed Income Securities Range Maximum DefinedBenefitPlanTargetAllocationPercentageOfAssetsFixedIncomeSecuritiesRangeMaximum	0.70
CY2018Q4	us-gaap	Defined Benefit Plan Funded Percentage DefinedBenefitPlanFundedPercentage	0.78
CY2019	swk	Defined Benefit Plan Target Allocation Percentage Of Assets Alternative Investments Range Maximum DefinedBenefitPlanTargetAllocationPercentageOfAssetsAlternativeInvestmentsRangeMaximum	0.10
CY2019Q4	us-gaap	Defined Benefit Plan Funded Percentage DefinedBenefitPlanFundedPercentage	0.79
CY2017Q4	us-gaap	Defined Benefit Plan Funded Percentage DefinedBenefitPlanFundedPercentage	0.79
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	38000000	USD
CY2019	swk	Defined Benefit Plan Expected Future Benefit Paymentsten Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentstenFiscalYearsThereafter	P10Y
CY2019Q4	swk	Defined Benefit Plan Expected Future Benefit Payments DefinedBenefitPlanExpectedFutureBenefitPayments	1393700000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	138500000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	138600000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	139100000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	140900000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	139800000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	696800000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.066
CY2019Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.050
CY2019Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	14800000	USD
CY2018Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	7700000	USD
CY2019Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3601000000.0	USD
CY2018Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3905400000	USD
CY2019Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	196100000	USD
CY2018Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	169200000	USD
CY2019Q4	swk	Sensitivity Analysisof Fair Value Contingent Consideration Liability Impactof10 Percent Adverse Changein Discount Rate SensitivityAnalysisofFairValueContingentConsiderationLiabilityImpactof10PercentAdverseChangeinDiscountRate	7500000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	255200000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	275800000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	252300000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	108800000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	154100000	USD
CY2019	us-gaap	Payments For Restructuring PaymentsForRestructuring	115300000	USD
CY2019	us-gaap	Restructuring Reserve Translation Adjustment RestructuringReserveTranslationAdjustment	200000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	147800000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	147800000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	154000000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	Segment
CY2019	us-gaap	Revenues Revenues	14442200000	USD
CY2018	us-gaap	Revenues Revenues	13982400000	USD
CY2017	us-gaap	Revenues Revenues	12966600000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	1994000000.0	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	1882200000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	1996500000	USD
CY2019	swk	Corporate Overhead Expense CorporateOverheadExpense	229500000	USD
CY2018	swk	Corporate Overhead Expense CorporateOverheadExpense	202800000	USD
CY2017	swk	Corporate Overhead Expense CorporateOverheadExpense	217400000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	249100000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	287000000.0	USD
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	269200000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	17000000.0	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-800000	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	264100000	USD
CY2019	us-gaap	Defined Benefit Plan Settlements Benefit Obligation DefinedBenefitPlanSettlementsBenefitObligation	0	USD
CY2018	us-gaap	Defined Benefit Plan Settlements Benefit Obligation DefinedBenefitPlanSettlementsBenefitObligation	0	USD
CY2017	us-gaap	Defined Benefit Plan Settlements Benefit Obligation DefinedBenefitPlanSettlementsBenefitObligation	12200000	USD
CY2019	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	154100000	USD
CY2018	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	160300000	USD
CY2017	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	51500000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-17900000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1130000000.0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1022100000	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	53900000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	68700000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	40100000	USD
CY2019	us-gaap	Interest Expense InterestExpense	284300000	USD
CY2018	us-gaap	Interest Expense InterestExpense	277900000	USD
CY2017	us-gaap	Interest Expense InterestExpense	222600000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1527800000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	424700000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	492100000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	442400000	USD
CY2019Q4	us-gaap	Assets Assets	20596600000	USD
CY2018Q4	us-gaap	Assets Assets	19408000000.0	USD
CY2017Q4	us-gaap	Assets Assets	19097700000	USD
CY2019	us-gaap	Revenues Revenues	14442200000	USD
CY2018	us-gaap	Revenues Revenues	13982400000	USD
CY2017	us-gaap	Revenues Revenues	12966600000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1959500000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1915200000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1742500000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	144900000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	128500000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	731800000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	672800000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	159300000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	202500000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	129700000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	89500000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	73900000	USD
CY2019Q4	swk	Deferred Tax Liabilities Gross DeferredTaxLiabilitiesGross	1255200000	USD
CY2018Q4	swk	Deferred Tax Liabilities Gross DeferredTaxLiabilitiesGross	1077700000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	235400000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	222100000	USD
CY2018Q4	swk	Deferred Tax Assets Operating Loss And Capital Loss Carryforwards DeferredTaxAssetsOperatingLossAndCapitalLossCarryforwards	710600000	USD
CY2019Q4	us-gaap	Lease Incentive Receivable LeaseIncentiveReceivable	129600000	USD
CY2018Q4	us-gaap	Lease Incentive Receivable LeaseIncentiveReceivable	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	82000000.0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	93300000	USD
CY2019Q4	swk	Deferred Tax Assets Operating Loss And Capital Loss Carryforwards DeferredTaxAssetsOperatingLossAndCapitalLossCarryforwards	1100300000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	149200000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	147300000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1696500000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1173300000	USD
CY2019Q4	swk	Deferred Tax Assets Liabilities Gross DeferredTaxAssetsLiabilitiesGross	441300000	USD
CY2018Q4	swk	Deferred Tax Assets Liabilities Gross DeferredTaxAssetsLiabilitiesGross	95600000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1065000000.0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	626700000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	623700000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	531100000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1065000000.0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	626700000	USD
CY2019	us-gaap	Undistributed Earnings UndistributedEarnings	5200000000	USD
CY2019Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	4300000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	32900000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	214500000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	444100000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	715200000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	915500000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	578000000.0	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	812600000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1130000000.0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1022100000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1527800000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	25400000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	590600000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	195900000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	175000000.0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-23700000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	224600000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6500000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	24800000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	25400000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	178700000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	225200000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	840600000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5700000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	29700000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-513000000.0	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-32900000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	132700000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-33000000.0	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	9300000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	28700000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6300000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	160800000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	416300000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	300900000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	250100000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	339400000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	273600000	USD
CY2019	swk	Income Tax Refund IncomeTaxRefund	72500000	USD
CY2018	swk	Income Tax Refund IncomeTaxRefund	43700000	USD
CY2017	swk	Income Tax Refund IncomeTaxRefund	28500000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	237300000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	214600000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	534100000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	22100000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	24700000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	13300000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-53300000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-33200000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-149000000.0	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-53100000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	4500000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	64400000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	10500000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	5100000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-5400000	USD
CY2018	swk	Income Tax Reconciliation Change In Undistributed Earnings IncomeTaxReconciliationChangeInUndistributedEarnings	0	USD
CY2017	swk	Income Tax Reconciliation Change In Undistributed Earnings IncomeTaxReconciliationChangeInUndistributedEarnings	94100000	USD
CY2019	swk	Tax Provision Basis Differencefor Businesses Heldfor Sale TaxProvisionBasisDifferenceforBusinessesHeldforSale	0	USD
CY2018	swk	Tax Provision Basis Differencefor Businesses Heldfor Sale TaxProvisionBasisDifferenceforBusinessesHeldforSale	0	USD
CY2017	swk	Tax Provision Basis Differencefor Businesses Heldfor Sale TaxProvisionBasisDifferenceforBusinessesHeldforSale	27900000	USD
CY2019	us-gaap	Income Tax Effects Allocated Directly To Equity Employee Stock Options IncomeTaxEffectsAllocatedDirectlyToEquityEmployeeStockOptions	24100000	USD
CY2018	us-gaap	Income Tax Effects Allocated Directly To Equity Employee Stock Options IncomeTaxEffectsAllocatedDirectlyToEquityEmployeeStockOptions	4100000	USD
CY2017	us-gaap	Income Tax Effects Allocated Directly To Equity Employee Stock Options IncomeTaxEffectsAllocatedDirectlyToEquityEmployeeStockOptions	-23200000	USD
CY2019	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	6700000	USD
CY2018	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	0	USD
CY2017	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	-47300000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	199600000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	23600000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	14700000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	5100000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-43400000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	160800000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	416300000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	300900000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	406300000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	387800000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	309800000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	48600000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	28300000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	34600000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	78500000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	103000000.0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	82500000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	91100000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	91500000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	4200000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	300000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	2500000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	300000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	35700000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	18800000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	34600000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	406300000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	406300000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	387800000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	398200000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	397000000.0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	4300000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	15800000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	3800000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	47800000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	52100000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	67900000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	230600000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Deferred Tax Asset Income Tax Expense TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxAssetIncomeTaxExpense	21900000	USD
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Deferred Tax Liability Income Tax Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxLiabilityIncomeTaxBenefit	252500000	USD
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense	447200000	USD
CY2019Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense	2900000	USD
CY2018Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Liability TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiability	450100000	USD
CY2019Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Liability TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiability	344100000	USD
CY2017Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	4800000000	USD
CY2017Q4	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability Undistributed Earnings Of Foreign Subsidiaries DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries	217700000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense	188300000	USD
CY2019	swk	Increaseinleaseliability Increaseinleaseliability	186900000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	536900000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	535400000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	151600000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	26600000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	8500000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	2800000	USD
CY2019	us-gaap	Lease Cost LeaseCost	183900000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	154400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	607400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	144100000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	110700000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	82400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	59400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	53700000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	157100000	USD
CY2019	us-gaap	Sale Leaseback Transaction Net Proceeds Investing Activities SaleLeasebackTransactionNetProceedsInvestingActivities	93000000.0	USD
CY2019	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	69500000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	177600000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	150400000	USD
CY2019Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	321700000	USD
CY2019Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	6300000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	102100000	USD
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	108500000	USD
CY2016Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	103400000	USD
CY2019	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	128100000	USD
CY2018	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	110400000	USD
CY2017	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	105300000	USD
CY2019	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	130100000	USD
CY2018	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	116800000	USD
CY2017	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	100200000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	100100000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	102100000	USD
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	108500000	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due After Fifth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear	33600000	USD
CY2019Q4	swk	Superfund Sites SuperfundSites	28	sites
CY2019Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	15600000	USD
CY2019	swk	Environmentalremediation.Periodconstructionoftreatmentfacilitytobemaintained Environmentalremediation.Periodconstructionoftreatmentfacilitytobemaintained	P30Y
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due Within One Year AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear	1400000	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Second Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear	3000000.0	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Third Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear	3000000.0	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Fourth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear	3000000.0	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Fifth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear	3100000	USD
CY2017Q3	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-13700000	USD
CY2019	swk	Gain Losson Disposalofbusiness Netof Tax Not Discontinuedoperations GainLossonDisposalofbusinessNetofTaxNOTDiscontinuedoperations	-264100000	USD
CY2018	us-gaap	Income Loss From Individually Significant Component Disposed Of Or Held For Sale Excluding Discontinued Operations Before Income Tax IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsBeforeIncomeTax	7000000.0	USD
CY2018Q1	us-gaap	Revenues Revenues	3333600000	USD
CY2018Q2	us-gaap	Revenues Revenues	3761300000	USD
CY2018Q3	us-gaap	Revenues Revenues	3633100000	USD
CY2019Q4	us-gaap	Revenues Revenues	3714200000	USD
CY2019	us-gaap	Revenues Revenues	14442200000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	1105600000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	1299800000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	1239500000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	1160600000	USD
CY2019	us-gaap	Gross Profit GrossProfit	4805500000	USD
CY2018Q1	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	778900000	USD
CY2018Q2	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	782300000	USD
CY2018Q3	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	756100000	USD
CY2019Q4	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	723700000	USD
CY2019	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	3041000000.0	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	170400000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	357400000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	231100000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	199100000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	958000000.0	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	500000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	1100000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	600000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	0	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	2200000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	169900000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	356300000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	230500000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	199100000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	955800000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.41
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.55
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.44
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.13
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.37
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.53
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.32
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.35
CY2017Q2	us-gaap	Revenues Revenues	3209300000	USD
CY2017Q3	us-gaap	Revenues Revenues	3643600000	USD
CY2017Q3	us-gaap	Revenues Revenues	3494800000	USD
CY2017Q4	us-gaap	Revenues Revenues	3634700000	USD
CY2018	us-gaap	Revenues Revenues	13982400000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	1165700000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	1287100000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	1238400000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	1159900000	USD
CY2018	us-gaap	Gross Profit GrossProfit	4851100000	USD
CY2017Q2	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	785600000	USD
CY2017Q3	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	805800000	USD
CY2017Q3	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	798900000	USD
CY2017Q4	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	781400000	USD
CY2018	swk	Selling Generaland Administrative Expense Totalincluding Allowancefor Doubtful Accounts SellingGeneralandAdministrativeExpenseTotalincludingAllowanceforDoubtfulAccounts	3171700000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	170100000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	293400000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	248300000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-106000000.0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	605800000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-500000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-200000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	500000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	800000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	600000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	170600000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	293600000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	247800000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	-106800000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	605200000	USD
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.13
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.96
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.72
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.06
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.11
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.93
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.65
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.72
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.99
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	363000000	USD
CY2019Q4	swk	Tax Cutsand Jobs Actof2017 TaxCutsandJobsActof2017	78000000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	450000000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	181000000	USD

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$SWK
STANLEY BLACK & DECKER, INC. Stock $swk

2019 Q4 Form 10-K Financial Statement

#000009355620000006 Filed on February 21, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SWK STANLEY BLACK & DECKER, INC. Stock $swk

2019 Q4 Form 10-K Financial Statement

#000009355620000006 Filed on February 21, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SWK
STANLEY BLACK & DECKER, INC. Stock $swk