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Postretirement Benefits (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | [1] | Sep. 28, 2019 | [1] | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Defined Contribution Plan Expense |  |  |  |  | $ 44.1 |  | $ 45.3 | $ 42.2
Settlement Loss | $ 1.3 | $ (294.1) | $ 0.0 | $ 0.0 | 292.8 | [1] | 0.0 | 96.6
Pension Plans [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Settlement Payments |  |  |  |  | 673.9 |  | 0.0 |
Settlement Loss |  |  |  |  | 292.8 |  | 0.0 | 96.6
Other Postretirement Benefit Plans [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Settlement Payments |  |  |  |  | 0.0 |  | 0.0 |
Settlement Loss |  |  |  |  | 0.0 |  | 0.0 | 0.0
Brunswick Pension Plan For Salaried Employees and Brunswick Pension Plan For Hourly Bargaining Unit Employees [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Settlement Payments |  |  |  |  | 673.9 |  |  |
Settlement Loss |  |  |  |  | 292.8 |  |  |
Defined Benefit Plan Lump Sum Payment |  |  |  |  | 77.1 |  |  |
Defined Benefit Plan, Purchase of Group Annuity Contract |  |  |  |  | $ 596.8 |  |  |
Brunswick Pension Plan For Hourly Bargaining Unit Employees and the Brunswick Pension Plan For Salaried Employees [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Settlement Payments |  |  |  |  |  |  |  | 132.7
Brunswick Pension Plan For Hourly Employees and the Brunswick Pension Plan For Hourly Wage Employees [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Settlement Payments |  |  |  |  |  |  |  | 101.7
Bargaining Plan, Salaried Plan, Hourly Plan and Muskegon Plan [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Settlement Loss |  |  |  |  |  |  |  | $ 96.6
Total Pension Plan Net Assets [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  |  |  |  |  |  | $ 642.0 |
[1] | (D) Pension settlement charges are discussed in Note 17 – Postretirement Benefits.

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- Definition The amount that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments, including those amounts which did not trigger settlement accounting, to plan participants in exchange for their rights to receive specified benefits and/or (b) purchasing nonparticipating annuity contracts. + References No definition available. + Details
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- Definition Dollar amount paid to purchase group annuity contract to pay certain plan participants. + References No definition available. + Details
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