Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.8.0.1
Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Oct. 25, 2017
Oct. 17, 2017
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Subsequent Event [Line Items]            
Cash Dividends Declared Per Share     $ 0.165 $ 0.15 $ 0.495 $ 0.45
Subsequent Event [Member]            
Subsequent Event [Line Items]            
Cash Dividends Declared Per Share   $ 0.19        
Subsequent Event [Member] | Brunswick Pension Plan For Hourly Bargaining Unit Employees and the Brunswick Pension Plan For Salaried Employees [Member]            
Subsequent Event [Line Items]            
Defined Benefit Plan, Plan Assets, Payment for Settlement $ 132.6          
Subsequent Event [Member] | Brunswick Pension Plan For Hourly Employees and the Brunswick Pension Plan For Hourly Wage Employees [Member]            
Subsequent Event [Line Items]            
Defined Benefit Plan, Plan Assets, Payment for Settlement $ 101.7