Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v2.4.0.6
Document And Entity Information (USD $)
3 Months Ended
Mar. 31, 2012
May 01, 2012
Jun. 30, 2011
Document and Entity Information [Abstract]      
Entity Registrant Name BRUNSWICK CORP    
Entity Central Index Key 0000014930    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 1,797,945,334
Entity Common Stock, Shares Outstanding   89,313,117  
Document Fiscal Year Focus 2012    
Document Fiscal Period Focus Q1    
Document Type 10-Q    
Amendment Flag false    
Document Period End Date Mar. 31, 2012