Brunswick Corporation Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Dec. 31, 2013
Foreign exchange contracts [Member]
Derivative [Line Items]
Amount of net losses estimated to be reclassified from accumulated other comprehensive loss	$ (0.3)
Foreign exchange contracts [Member] \| Forward contracts [Member]
Derivative [Line Items]
Notional values	155.4	159.1
Foreign exchange contracts [Member] \| Options contracts [Member]
Derivative [Line Items]
Notional values	75.7	71.9
Interest rate contracts [Member] \| Forward contracts [Member]
Derivative [Line Items]
Notional values	0	0
Amount of net losses estimated to be reclassified from accumulated other comprehensive loss	(0.1)
Amount of net deferred losses associated with all forward starting interest rate swaps included in accumulated other comprehensive income	5.3	5.3
Commodity contracts [Member]
Derivative [Line Items]
Notional values	32.7	26.2
Amount of net losses estimated to be reclassified from accumulated other comprehensive loss	$ (0.3)
Minimum [Member]
Derivative [Line Items]
Term of derivative instruments (in months)	1 month
Maximum [Member]
Derivative [Line Items]
Term of derivative instruments (in months)	20 months