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

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Notes Tables
Notes Details

Investments (Details)

v2.3.0.11

Investments (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
Investments (Details) (USD $) In Millions	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010	Dec. 31, 2010
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, amortized cost	$ 78.9		$ 78.9		$ 84.8
Due after one year through two years, amortized cost	71.0		71.0		21.0
Total available-for-sale debt securities, amortized cost	149.9		149.9		105.8
Due in one year or less, fair value	78.8		78.8		84.7
Due after one year through two years, fair value	71.0		71.0		21.0
Total available-for-sale debt securities, fair value	149.8		149.8		105.7
Sales of available-for-sale securities			55.3	0
Redemptions of available-for-sale securities			24.0	0
Net adjustment to Unrealized investment losses on available-for-sale securities	0	0	0.1	0
Agency Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	76.0		76.0		31.0
Gross unrealized gains	0		0		0
Gross unrealized losses	0		0		0
Fair value (net carrying amount)	76.0		76.0		31.0
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	53.6		53.6		44.5
Gross unrealized gains	0		0		0
Gross unrealized losses	(0.1)		(0.1)		(0.1)
Fair value (net carrying amount)	53.5		53.5		44.4
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	19.5		19.5		29.5
Gross unrealized gains	0		0		0
Gross unrealized losses	0		0		0
Fair value (net carrying amount)	19.5		19.5		29.5
U.S. Treasury Bills [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	0.8		0.8		0.8
Gross unrealized gains	0		0		0
Gross unrealized losses	0		0		0
Fair value (net carrying amount)	0.8		0.8		0.8
Total [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	149.9		149.9		105.8
Gross unrealized gains	0		0		0
Gross unrealized losses	(0.1)		(0.1)		(0.1)
Fair value (net carrying amount)	$ 149.8		$ 149.8		$ 105.7

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