| Document And Entity Information - USD ($) | 12 Months Ended | ||
| Dec. 31, 2019 | Feb. 12, 2020 | Jun. 28, 2019 | |
| Cover page. | |||
| Document Type | 10-K/A | ||
| Document Period End Date | Dec. 31, 2019 | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Entity File Number | 1-1043 | ||
| Entity Registrant Name | Brunswick Corporation | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Tax Identification Number | 36-0848180 | ||
| Entity Address, Address Line One | 26125 N. Riverwoods Blvd., Suite 500 | ||
| Entity Address, City or Town | Mettawa | ||
| Entity Address, State or Province | IL | ||
| Entity Address, Postal Zip Code | 60045-3420 | ||
| City Area Code | 847 | ||
| Local Phone Number | 735-4700 | ||
| Entity Information [Line Items] | |||
| Entity Well-known Seasoned Issuer | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Large Accelerated Filer | ||
| Entity Small Business | false | ||
| Entity Emerging Growth Company | false | ||
| Entity Shell Company | false | ||
| Entity Public Float | $ 3,906,175,936 | ||
| Entity Common Stock, Shares Outstanding | 79,470,343 | ||
| Document Fiscal Year Focus | 2019 | ||
| Document Fiscal Period Focus | FY | ||
| Amendment Flag | true | ||
| Amendment Description | Brunswick Corporation (the “Company”) is filing this Amendment No. 1 (this “Amendment No. 1”) to its Annual Report on Form 10-K for the year ended December 31, 2019 (the “Original Filing ”), originally filed with the Securities and Exchange Commission on February 18, 2020 (the “Original Filing Date”), solely to correct the Report of Independent Registered Public Accounting Firm (included in the Index to Financial Statements and Financial Statement Schedule on pages 52-53 of the Original Filing) and the Consent of Deloitte & Touche LLP (filed as Exhibit 23.1 of the Original Filing), each of which inadvertently omitted the typeset signature of Deloitte & Touche LLP. The Report of Independent Registered Public Accounting Firm included below and the Consent of Deloitte & Touche LLP filed as an exhibit to this Amendment No. 1 include the omitted signatures. | ||
| Entity Central Index Key | 0000014930 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Common Stock | CHICAGO STOCK EXCHANGE, INC [Member] | |||
| Entity Information [Line Items] | |||
| Title of 12(b) Security | Common stock, par value $0.75 per share | ||
| Trading Symbol | BC | ||
| Security Exchange Name | CHX | ||
| Common Stock | NEW YORK STOCK EXCHANGE, INC. [Member] | |||
| Entity Information [Line Items] | |||
| Title of 12(b) Security | Common stock, par value $0.75 per share | ||
| Trading Symbol | BC | ||
| Security Exchange Name | NYSE | ||
| 6.500% Senior Notes due 2048 [Member] | NEW YORK STOCK EXCHANGE, INC. [Member] | |||
| Entity Information [Line Items] | |||
| Title of 12(b) Security | 6.500% Senior Notes due 2048 | ||
| Trading Symbol | BC-A | ||
| Security Exchange Name | NYSE | ||
| 6.625% Senior Notes due 2049 [Member] | NEW YORK STOCK EXCHANGE, INC. [Member] | |||
| Entity Information [Line Items] | |||
| Title of 12(b) Security | 6.625% Senior Notes due 2049 | ||
| Trading Symbol | BC-B | ||
| Security Exchange Name | NYSE | ||
| 6.375% Senior Notes due 2049 [Member] | NEW YORK STOCK EXCHANGE, INC. [Member] | |||
| Entity Information [Line Items] | |||
| Title of 12(b) Security | 6.375% Senior Notes due 2049 | ||
| Trading Symbol | BC-C | ||
| Security Exchange Name | NYSE |
