Brunswick Corporation Annual report pursuant to Section 13 and 15(d)

Financial Instruments (Details) - USD ($) $ in Millions	12 Months Ended
Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 684.8	$ 519.8
Foreign Exchange Option [Member]
Derivative [Line Items]
Derivative, Notional Amount	0.0
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months	18.2
Forward-Starting Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	0.0
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months	0.1
Amount of Gain (Loss) Estimated to be Reclassified From Accumulated Other Comprehensive Loss to Cost of Sales or Interest Expense	3.2	(2.4)
Commodity Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	24.1	25.3
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months	1.9
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	0.0
Amount of Gain (Loss) Estimated to be Reclassified From Accumulated Other Comprehensive Loss to Cost of Sales or Interest Expense	1.6
Cross Currency Interest Rate Contract
Derivative [Line Items]
Derivative, Notional Amount	$ 450.0	$ 200.0
Minimum [Member]
Derivative [Line Items]
Term of Derivative Instruments (in Months)		1 month
Maximum [Member]
Derivative [Line Items]
Term of Derivative Instruments (in Months)		18 months