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

Financial Instruments, Fair Values of Derivative Instruments (Details)

Financial Instruments, Fair Values of Derivative Instruments (Details) (USD $) In Millions, unless otherwise specified	Apr. 04, 2015	Dec. 31, 2014	Mar. 29, 2014
Other Hedging Activity [Member]
Derivatives, Fair Value [Line Items]
Total derivative assets	$ 1.0	$ 1.0	$ 0.2
Total derivative liabilities	0	0.1	0.1
Foreign exchange contracts [Member] \| Prepaid expenses and other [Member] \| Other Hedging Activity [Member]
Derivatives, Fair Value [Line Items]
Total derivative assets	1.0	1.0	0.2
Foreign exchange contracts [Member] \| Accrued expenses [Member] \| Other Hedging Activity [Member]
Derivatives, Fair Value [Line Items]
Total derivative liabilities	0	0.1	0.1
Cash Flow Hedging [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative assets	6.9	6.2	2.0
Total derivative liabilities	3.4	2.2	3.0
Cash Flow Hedging [Member] \| Foreign exchange contracts [Member] \| Prepaid expenses and other [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative assets	6.9	5.9	2.0
Cash Flow Hedging [Member] \| Foreign exchange contracts [Member] \| Accrued expenses [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative liabilities	0.9	1.5	1.5
Cash Flow Hedging [Member] \| Commodity contracts [Member] \| Prepaid expenses and other [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0.3	0
Cash Flow Hedging [Member] \| Commodity contracts [Member] \| Accrued expenses [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative liabilities	2.5	0.7	1.5
Fair Value Hedging [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative assets	7.9	3.9
Total derivative liabilities	1.7	1.3
Fair Value Hedging [Member] \| Interest rate contracts [Member] \| Prepaid expenses and other [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative assets	3.0	3.9
Fair Value Hedging [Member] \| Interest rate contracts [Member] \| Accrued expenses [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative liabilities	1.7	1.3
Fair Value Hedging [Member] \| Interest rate contracts [Member] \| Other long-term assets [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative assets	4.9
Fair Value Hedging [Member] \| Interest rate contracts [Member] \| Other long-term liabilities [Member] \| Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total derivative liabilities	$ 0