Brunswick (BC) 10-K 16 Feb 21 2020 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 12, 2021	Jun. 28, 2019
Document and Entity Information [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
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]
ICFR Auditor Attestation Flag	true
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			$ 4,898,235,570
Entity Common Stock, Shares Outstanding		77,774,754
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Central Index Key	0000014930
Current Fiscal Year End Date	--12-31
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
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
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

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Income Statement [Abstract]
Net Sales	$ 4,347.5		$ 4,108.4		$ 4,120.9
Cost of Sales	3,134.5		2,987.4		3,073.9
Selling, General and Administrative Expense	543.7		509.6		515.2
Research And Development Expense	125.9		121.6		121.5
Restructuring, Exit and Impairment Charges	4.1		18.8	[1]	54.8
Operating Earnings	539.3		471		355.5
Equity Earnings	4.5		7.3		7.7
Pension Settlement Charge	1.1	[2]	(292.8)	[2]	0
Other Expense, Net	(6.1)		(2.1)		(4.3)
Earnings Before Interest and Income Taxes	538.8		183.4		358.9
Interest Expense	(67.3)		(76)		(46)
Interest Income	1.2		3.3		2.9
Transaction Financing Charges	0		0		(5.1)
Earnings Before Income Taxes	472.7		110.7		310.7
Income Tax Provision	98		80.3		57.3
Net Earnings from Continuing Operations	374.7		30.4	[3]	253.4
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
(Loss) Earnings from Discontinued Operations, Net of Tax	(0.5)	[4]	(117.5)	[5],[6]	11.9	[4],[5]
Gain on disposal of discontinued operations, net of tax	(1.5)	[7]	(43.9)	[7]	0
Net (Loss) Earnings from Discontinued Operations, Net of Tax	(2)		(161.4)		11.9
Net Earnings (Loss)	$ 372.7		$ (131)		$ 265.3
Basic
Earnings from Continuing Operations (in Dollars Per Share)	$ 4.73		$ 0.36		$ 2.89
Earnings (Loss) from Discontinued Operations (in Dollars Per Share)	(0.03)		(1.90)		0.14
Net Earnings (Loss) (in Dollars per Share)	4.70		(1.54)		3.03
Diluted
Earnings from Continuing Operations (in Dollars per Share)	4.70		0.36		2.87
Earnings (Loss) from Discontinued Operations (in Dollars per Share)	(0.02)		(1.89)		0.14
Net Earnings (Loss) (in Dollars per Share)	$ 4.68		$ (1.53)		$ 3.01
Weighted Average Shares Used for Computation of:
Basic Earnings Per Common Share (in Shares)	79.2		85.2		87.6
Diluted Earnings Per Common Share (in Shares)	79.7		85.6		88.2
[1]	(C) Restructuring, exit, integration and impairment charges are discussed in Note 4 – Restructuring, Exit and Impairment Activities.
[2]	(D) Pension settlement charges are discussed in Note 17 – Postretirement Benefits
[3]	(E ) During the first, second, third and fourth quarter and full-year of 2020, Net earnings (loss) from continuing operations inclu des $6.9 million, $7.0 million, $6.5 million, $7.2 million and $27.6 million, res pectively, related to purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Net earnings (loss) from continuing operations also includes $(0.3) million, $0.4 million, $(0.7) million, $0.9 million and $0.3 million related to discrete tax items. During the first, second, third and fourth quarter and full-year ended 2019, Net earnings (loss) from continuing operations includ es $5.7 million, $9.0 million, $6.1 million, $8.2 million and $29.0 million, respec tively, related to SYY, purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Refer to Note 5 – Acquisitions for further details. Net earnings (loss) from continuing operations also includes $(1.7) million, $1.8 million, $(2.5) million, $(14.8) million and $(17.2) million related to discrete tax items. In the third quarter and full-year of 2019, the Company had a loss of extinguishment of debt, net of tax, of $0.8 million.
[4]	(B) The Company recorded $(0.5) million for the year ended December 31, 2020, primarily resulting from adjustments in certain liabilities as part of the sale of the Fitness business. During 2018, the Company recorded adjustments to certain liabilities that were retained as part of the sale of the bowling businesses. As a result, Earnings (loss) from discontinued operations, net of tax, includes a gain of $3.0 million ($2.2 million after tax) for the year ended December 31, 2018.
[5]	(A) The Company recorded $16.5 million and $19.3 million for the year ended December 31, 2019 and December 31, 2018, respectively, of net costs incurred in connection with the sale of its Fitness business
[6]	(C) In the first quarter of 2019, the Company re-evaluated the fair value of the Fitness reporting unit and determined the fair value of the business was less than its carrying value. As a result, (Loss) earnings from discontin ued operations, net of tax, includes a $137.2 million ($103.0 million after tax) goodwill impairment charge for the year ended December 31, 2019.
[7]	(D) The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2020 includes a pre-tax loss o f $2.0 million and a net tax benefit of $0.5 million. The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2019 includes a pre-tax loss of $51.3 million and a net tax benefit of $7.4 million.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Comprehensive Income (Loss) [Abstract]
Net Earnings		$ 372.7		$ (131)		$ 265.3
Foreign Currency Translation [Abstract]
Foreign Currency Translation Adjustments		22.5		25.1	[1]	(17.3)	[1]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax		0	[2]	(13.8)		0
Net Foreign Currency Translation		22.5		11.3		(17.3)
Defined Benefit Plans [Abstract]
Net Actuarial Losses	[1]	(2.4)		(11.3)		(3.3)
Amortization of Prior Service Credits	[2]	(0.5)		3.1		(0.5)
Amortization of Net Actuarial Losses	[2]	0.8		310.2		7.9
Net Defined Benefit Plans		(2.1)		302		4.1
Derivatives [Abstract]
Net Deferred Gains (Losses) on Derivatives	[1]	(4.7)		3.6		7.3
Reclassification to Earnings	[2]	(5)		(7.2)		2.6
Net Deferred Gains (Losses) on Derivatives		(9.7)		(3.6)		9.9
Other Comprehensive Income		10.7		309.7		(3.3)
Comprehensive Income		383.4		178.7		262
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent [Abstract]
Foreign Currency Translation Adjustments, Tax Effect		(1.2)		(0.7)		1.5
Net Actuarial Gains (Losses), Tax Effect		0.3		5.1		1.2
Gains (Losses) on Derivatives, Tax Effect		$ 1.8		$ (1.4)		$ (3.3)
[1]	The tax effects for the year ended December 31, 2020 were $(1.2) million for foreign currency translation, $0.3 million for net actuarial losses arising during the period and $1.8 million for derivatives. The tax effects for the year ended December 31, 2019 were $(0.7) million for foreign currency translation, $5.1 million for net actuarial losses arising during the period and $(1.4) million for derivatives. The tax effects for the year ended December 31, 2018 were $1.5 million for foreign currency translation, $1.2 million for net actuarial losses arising during the period and $(3.3) million for derivatives.
[2]	See Note 19 – Comprehensive Income (Loss) for the tax effects for the years ended December 31, 2020, December 31, 2019 and December 31, 2018.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current Assets
Cash and Cash Equivalents, at Cost, Which Approximates Fair Value	$ 519.6	$ 320.3
Short-Term Investments in Marketable Securities	56.7	0.8
Total Cash and Short-Term Investments in Marketable Securities	587	332.7
Accounts and Notes Receivable, Less Allowances of $11.3 and $9.2	337.6	331.8
Inventories
Finished Goods	446.8	554.3
Work-In-Process	94	101.3
Raw Materials	171	168.9
Net Inventories	711.8	824.5
Prepaid Expenses and Other	34.1	36.8
Current Assets	1,670.5	1,525.8
Property
Land	17.7	17.8
Buildings and Improvements	435.5	415.4
Equipment	1,184.9	1,090.1
Total Land, Buildings and Improvements and Equipment	1,638.1	1,523.3
Accumulated Depreciation	(929.8)	(863.8)
Net Land, Buildings and Improvements and Equipment	708.3	659.5
Unamortized Product Tooling Costs	155.3	136.9
Net Property	863.6	796.4
Other Assets
Goodwill	417.7	415
Other Intangibles, Net	552.3	583.5
Equity Investments	32.5	29.5
Deferred Revenue	136.6	118.7
Operating lease assets	83	83.2
Other long-term assets	14.4	12.3
Other Assets	1,236.5	1,242.2
Total Assets	3,770.6	3,564.4
Current Liabilities
Short-Term Debt and Current Maturities of Long-Term Debt	43.1	41.3
Accounts Payable	457.6	393.5
Accrued Expenses	578.5	509.6
Current Liabilities	1,079.2	944.4
Long-Term Liabilities
Debt	908.3	1,068
Non-Current Operating Lease Liabilities	69.8	70.1
Postretirement Benefits	74.7	73.6
Other	128.6	107.4
Long-Term Liabilities	1,181.4	1,319.1
Shareholders' Equity
Common Stock; Authorized: 200,000,000 Shares, $0.75 Par Value; Issued: 102,538,000 Shares; Outstanding: 86,757,000 and 87,537,000 Shares	76.9	76.9
Additional Paid-In Capital	383.8	369.2
Retained Earnings	2,225.7	1,931.3
Treasury Stock, at Cost: 15,781,000 and 15,001,000 Shares	(1,133.7)	(1,023.1)
Accumulated Other Comprehensive Loss, Net of Tax:
Foreign Currency Translation	(15.1)	(37.6)
Prior Service Credits	(3.5)	(3)
Net Actuarial Losses	(8.9)	(7.3)
Unrealized Losses on Derivatives	(15.2)	(5.5)
Total Accumulated Other Comprehensive Loss, Net of Tax	(42.7)	(53.4)
Shareholders' Equity	1,510	1,300.9
Total Liabilities and Shareholders' Equity	$ 3,770.6	$ 3,564.4
Common Stock, Shares Authorized (in Shares)	200,000,000	200,000,000
Common Stock, Par Value (in Dollars per Share)	$ 0.75	$ 0.75
Common Stock, Shares Outstanding	77,875,000	79,569,000
Common Stock, Shares Issued (in Shares)	102,538,000	102,538,000
Treasury Stock, Shares (in Shares)	24,663,000	22,969,000
Accounts and Notes Receivable, Allowances	$ 10.7	$ 8.5
Less: Restricted Cash	$ 10.7	$ 11.6

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current Assets
Accounts and Notes Receivable, Allowances	$ 10.7	$ 8.5
Shareholders' Equity
Common Stock, Shares Authorized (in Shares)	200,000,000	200,000,000
Common Stock, Par Value (in Dollars per Share)	$ 0.75	$ 0.75
Common Stock, Shares Issued (in Shares)	102,538,000	102,538,000
Common Stock, Shares Outstanding	77,875,000	79,569,000
Treasury Stock, Shares (in Shares)	24,663,000	22,969,000	15,781,000	15,001,000

Consolidated Statements of Cash

Consolidated Statements of Cash Flows $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)		Dec. 31, 2018USD ($)
Cash Flows From Operating Activities
Net Earnings	$ 372.7	$ (131)		$ 265.3
Net (Loss) Earnings from Discontinued Operations, Net of Tax	2	161.4		(11.9)
Net Earnings from Continuing Operations	374.7	30.4	[1]	253.4
Depreciation and Amortization	153.4	138.7		124
Stock Compensation Expense	27.1	17.3		16.7
Pension Expense Including Settlement Charges, Net of (Funding)	(3.2)	293.3		(156.1)
Asset Impairment Charges	1.5	3		32.1
Deferred Income Taxes	(17.6)	(49.8)		31
Changes in Certain Current Assets and Current Liabilities
Change in Accounts and Notes Receivable	(19.9)	41.4		(30.2)
Change in Inventory	109.3	(50.5)		(82.4)
Change in Prepaid Expenses and Other, Excluding Income Taxes	(2.6)	5.7		(8.9)
Change in Accounts Payable	64.5	(32.7)		61.4
Change in Accrued Expenses	75.3	(44.7)		17.6
Increase (Decrease) in Contract with Customer, Liability	12.1	4		7.9
Income Taxes	6.1	114.4		4.9
Other, Net	19.3	4.8		3.1
Net Cash Provided by Operating Activities of Continuing Operations	800	475.3		274.5
Net Cash Used for Operating Activities of Discontinued Operations	(1.7)	(41.1)		62.5
Net Cash Provided by Operating Activities	798.3	434.2		337
Cash Flows from Investing Activities
Capital Expenditures	(182.4)	(232.6)		(180.2)
Payments to Acquire Debt Securities, Available-for-sale	(55.9)	0		0
Payments for (Proceeds from) Investments	4	(2.4)		8.8
Acquisition of Businesses, Net of Cash Acquired	0	(64.1)		(909.6)
Proceeds from the Sale of Property, Plant and Equipment	2.9	7.3		0.4
Other, net	0	0		(0.2)
Net cash used for investing activities of continuing operations	(239.4)	(287)		(1,098.4)
Net cash provided by (used for) investing activities of discontinued operations	(7.5)	481.7		(8.9)
Net Cash Used for Investing Activities	(246.9)	194.7		(1,107.3)
Cash Flows from Financing Activities
Net Proceeds From Issuances of Short-Term Debt	610	655		298.9
Repayment of Short-Term Debt	(610)	(655)		(300)
Net Proceeds from Issuances of Long-Term Debt	0	223.6		794.6
Payments of Long-Term Debt Including Current Maturities	(159.1)	(341)		(12.6)
Common Stock Repurchases	(118.3)	(400)		(75)
Cash Dividends Paid	(78.3)	(73.4)		(67.8)
Proceeds from Share-Based Compensation Activity	1.5	2.8		1.4
Tax Witholding Associated with Shares Issued for Share-Based Compensation	(7.7)	(12.1)		(12.5)
Other, Net	0.1	(0.7)		(6.5)
Net Cash Used for Financing Activities	(361.8)	(600.8)		620.5
Effect of Exchange Rate Changes	8.8	0.4		(5)
Net Increase (Decrease) in Cash and Cash Equivalents and Restricted Cash	198.4	28.5		(154.8)
Cash and Cash Equivalents and Restricted Cash at Beginning of Period	331.9	303.4		458.2
Cash and Cash Equivalents and Restricted Cash at End of Period	530.3	331.9		303.4
Less: Restricted Cash	10.7	11.6		9
Cash and Cash Equivalents at End of Period	519.6	320.3		294.4
Supplemental Cash Flow Disclosures:
Interest Paid	72.8	79.5		46.8
Income Taxes Paid, Net	$ 111.5	$ 18.2		$ 21.7
[1]	(E ) During the first, second, third and fourth quarter and full-year of 2020, Net earnings (loss) from continuing operations inclu des $6.9 million, $7.0 million, $6.5 million, $7.2 million and $27.6 million, res pectively, related to purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Net earnings (loss) from continuing operations also includes $(0.3) million, $0.4 million, $(0.7) million, $0.9 million and $0.3 million related to discrete tax items. During the first, second, third and fourth quarter and full-year ended 2019, Net earnings (loss) from continuing operations includ es $5.7 million, $9.0 million, $6.1 million, $8.2 million and $29.0 million, respec tively, related to SYY, purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Refer to Note 5 – Acquisitions for further details. Net earnings (loss) from continuing operations also includes $(1.7) million, $1.8 million, $(2.5) million, $(14.8) million and $(17.2) million related to discrete tax items. In the third quarter and full-year of 2019, the Company had a loss of extinguishment of debt, net of tax, of $0.8 million.

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance, at Beginning of Year at Dec. 31, 2017	$ 1,482.9	$ 76.9	$ 374.4	$ 1,966.8	$ (575.4)	$ (359.8)
Net Earnings	265.3	0	0	265.3	0	0
Other Comprehensive Income	(3.3)	0	0	0	0	(3.3)
Dividends	(67.8)	0	0	(67.8)	0	0
Compensation Plans and Other	(9.1)	0	(3.3)	0	(12.4)	0
Common Stock Repurchases	(75)	0	0	0	(75)	0
Balance, at End of Year at Dec. 31, 2018	1,582.6	76.9	371.1	2,135.7	(638)	(363.1)
Revenue Not from Contract with Customer	$ (28.6)	0	0	(28.6)	0	0
Cash Dividends Declared Per Common Share (in Dollars per Share)	$ 0.78
Net Earnings	$ (131)	0	0	(131)	0	0
Other Comprehensive Income	309.7	0	0	0	0	309.7
Dividends	(73.4)	0	0	(73.4)	0	0
Compensation Plans and Other	(13)	0	(1.9)	0	(14.9)	0
Common Stock Repurchases	(400)	0	0	0	(400)	0
Balance, at End of Year at Dec. 31, 2019	$ 1,300.9	76.9	369.2	1,931.3	(1,023.1)	(53.4)
Cash Dividends Declared Per Common Share (in Dollars per Share)	$ 0.87
Net Earnings	$ 372.7	0	0	372.7	0	0
Other Comprehensive Income	10.7	0	0	0	0	10.7
Dividends	(78.3)	0	0	(78.3)	0	0
Compensation Plans and Other	(22.3)	0	(14.6)	0	(7.7)	0
Common Stock Repurchases	(118.3)	0	0	0	(118.3)	0
Balance, at End of Year at Dec. 31, 2020	$ 1,510	$ 76.9	$ 383.8	$ 2,225.7	$ (1,133.7)	$ (42.7)
Cash Dividends Declared Per Common Share (in Dollars per Share)	$ 0.99

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Cash Dividends Declared Per Common Share (in Dollars per Share)	$ 0.27	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.21	$ 0.21	$ 0.21	$ 0.99	$ 0.87	$ 0.78

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Basis of Presentation. Brunswick Corporation (Brunswick or the Company) has prepared its consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Effective January 1, 2020, the Company changed its management reporting and updated its reportable segments to Propulsion, Parts and Accessories (P&A) and Boat (inclusive of Business Acceleration) to align with its strategy. As a result of this change, the Company has recast all segment information for all prior periods presented. Refer to Note 6 – Segment Information for further information on the Company's reportable segments. Additionally, as stated in Note 3 – Discontinued Operations , Brunswick's results reflect continuing operations only, unless otherwise noted. Principles of Consolidation. Brunswick's consolidated financial statements include the accounts of all majority owned and controlled domestic and foreign subsidiaries. Intercompany balances and transactions have been eliminated. Use of Estimates. The preparation of the consolidated financial statements in accordance with accounting principles generally accepted in the United States (GAAP) requires management to make certain estimates. Actual results could differ materially from those estimates. These estimates affect: • The reported amounts of revenues and expenses during the reporting periods; • The reported amounts of assets and liabilities at the date of the financial statements; and • The disclosure of contingent assets and liabilities at the date of the financial statements. Estimates in these consolidated financial statements include, but are not limited to: • Allowances for doubtful accounts; • Inventory valuation reserves; • Variable consideration related to recorded revenue; • Reserves related to repurchase and recourse obligations; • Warranty related reserves; • Losses on litigation and other contingencies; • Environmental reserves; • Insurance reserves; • Valuation of goodwill and other intangible assets; • Impairments of long-lived assets; • Reserves related to restructuring, exit and impairment activities; • Postretirement benefit liabilities; • Valuation allowances on deferred tax assets; and • Income tax reserves. Cash and Cash Equivalents. The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. These investments include, but are not limited to, investments in money market funds, bank deposits, federal government and agency debt securities and commercial paper. Restricted Cash. Restricted Cash is primarily related to cash deposited in a trust that is pledged as collateral against certain workers' compensation-related obligations. Refer to Note 13 – Commitments and Contingencies for more information. Investments in Marketable Securities . The Company classifies investments in debt securities that are not considered to be cash equivalents as Short-term investments in marketable securities as discussed in Note 9 – Investments . Short-term investments in marketable securities have a stated maturity of twelve months or less from the balance sheet date. These securities are considered as available-for-sale and are reported at fair value. Unrealized gains and losses on these debt securities are recorded net of tax as a component of Accumulated other comprehensive loss in Unrealized investment losses within Shareholders' equity. Declines in market value from the original cost deemed to be "other-than-temporary" are charged to Other expense, net in the Consolidated Statements of Operations in the period in which the loss occurs. The Company considers both the duration for which a decline in value has occurred and the extent of the decline in its determination of whether a decline in value has been "other than temporary." Realized gains and losses are calculated based on the specific identification method and are included in Other expense, net in the Consolidated Statements of Operations. Accounts and Notes Receivable and Allowance for Doubtful Accounts. The Company carries its accounts and notes receivable at their face amounts less an allowance for doubtful accounts. On a regular basis, the Company records an allowance for uncollectible receivables based upon known bad debt risks and past loss history, customer payment practices and economic conditions. Actual collection experience may differ from the current estimate of net receivables. A change to the allowance for doubtful accounts may be required if a future event or other change in circumstances results in a change in the estimate of the ultimate collectability of a specific account. Inventories. Inventories are valued at the lower of cost or net realizable value, with net realizable value equal to the estimated selling price less the estimated costs to transact. Approximately 50 percent and 45 percent of the Company's inventories were determined by the first-in, first-out method (FIFO) at December 31, 2020 and December 31, 2019, respectively. Remaining inventories valued at the last-in, first-out method (LIFO) were $145.3 million and $139.9 million lower than the FIFO cost of inventories at December 31, 2020 and 2019, respectively. Inventory cost includes material, labor and manufacturing overhead. During 2020, a reduction in inventory quantities resulted in a liquidation of applicable LIFO inventory quantities carried at lower costs in prior years. This LIFO liquidation resulted in a decrease in cost of sales of approximately $7 million. There were no liquidations of LIFO inventory layers in 2019 or 2018. Property. Property, including major improvements and product tooling costs, is recorded at cost. Product tooling costs principally comprise the cost to acquire and construct various long-lived molds, dies and other tooling the Company uses in its manufacturing processes. Design and prototype development costs associated with product tooling are expensed as incurred. Maintenance and repair costs are also expensed as incurred. Depreciation is recorded over the estimated service lives of the related assets, principally using the straight-line method. Buildings and improvements are depreciated over a useful life of five to forty years. Equipment is depreciated over a useful life of two to twenty years. Product tooling costs are amortized over the shorter of the useful life of the tooling or the anticipated life of the applicable product, for a period up to eight years. The Company capitalizes interest on qualifying assets during the construction period and capitalized $4.4 million and $5.0 million in the periods ending December 31, 2020 and 2019, respectively. The Company presents capital expenditures on a cash basis within the Consolidated Statements of Cash Flows. There were $31.7 million and $27.5 million of unpaid capital expenditures within Accounts payable as of December 31, 2020 and 2019, respectively. The Company includes gains and losses recognized on the sale and disposal of property in either Selling, general and administrative expenses or Restructuring, exit and impairment charges as appropriate. The amount of gains and losses for the years ended December 31 were as follows: (in millions) 2020 2019 2018 Gains on the sale of property $ 0.7 $ 1.8 $ 0.3 Losses on the sale and disposal of property (0.5) (2.4) (0.8) Net gains (losses) on sale and disposal of property $ 0.2 $ (0.6) $ (0.5) At both December 31, 2020 and 2019, the Company had $3.0 million of net assets classified as held-for-sale within Net property in the Consolidated Balance Sheets. Software Development Costs for Internal Use. The Company expenses all software development and implementation costs incurred until the Company has determined that the software will result in probable future economic benefit and management has committed to funding the project. Once this is determined, external direct costs of material and services, payroll-related costs of employees working on the project and related interest costs incurred during the application development stage are capitalized. These capitalized costs are amortized over three to seven years. All other related costs, including training costs and costs to re-engineer business processes, are expensed as incurred. Goodwill. Goodwill results from the excess of purchase price over the net assets of businesses acquired. The Company reviews goodwill for impairment annually and whenever events or changes in circumstances indicate that the fair value of a reporting unit may be below its carrying value. As part of the annual test, the Company may perform a qualitative, rather than quantitative, assessment to determine whether the fair values of its reporting units are "more likely than not" to be greater than their carrying values. In performing this qualitative analysis, the Company considers various factors, including the effect of market or industry changes and the reporting units' actual results compared to projected results. If the fair value of a reporting unit does not meet the "more likely than not" criteria discussed above, the Company performs a quantitative assessment which begins by measuring the fair value of the reporting unit. If the carrying value of the reporting unit exceeds its fair value, a goodwill impairment is recorded equal to the carrying value of the reporting unit less its fair value, not to exceed the carrying value of goodwill. The Company calculates the fair value of its reporting units considering both the income approach and the guideline public company method. The income approach calculates the fair value of the reporting unit using a discounted cash flow approach utilizing a Gordon Growth model. Internally forecasted future cash flows, which the Company believes reasonably approximate market participant assumptions, are discounted using a weighted average cost of capital (Discount Rate) developed for each reporting unit. The Discount Rate is developed using market observable inputs, as well as considering whether or not there is a measure of risk related to the specific reporting unit’s forecasted performance. Fair value under the guideline public company method is determined for each unit by applying market multiples for comparable public companies to the unit’s current and forecasted financial results. The key uncertainties in these calculations are the assumptions used in determining the reporting unit’s forecasted future performance, including revenue growth and operating margins, as well as the perceived risk associated with those forecasts in determining the Discount Rate, along with selecting representative market multiples. The Company did not record any goodwill impairments in 2020, 2019 or 2018 in continuing operations. Refer to Note 3 – Discontinued Operations for further information on the Fitness goodwill impairment recorded during 2019. Other intangible assets. The Company's primary intangible assets are customer relationships and trade names acquired in business combinations. Intangible assets are initially valued using a methodology commensurate with the intended use of the asset. The customer relationships were valued using the income approach, specifically the multi-period excess earnings method (MPEEM). The fair value of trade names is measured using a relief-from-royalty (RFR) approach, which assumes the value of the trade name is the discounted amount of cash flows that would be paid to third parties had the Company not owned the trade name and instead licensed the trade name from another company. Higher royalty rates are assigned to premium brands within the marketplace based on name recognition and profitability, while other brands receive lower royalty rates. The basis for future sales projections for both the RFR and MPEEM are based on internal revenue forecasts by brand, which the Company believes represent reasonable market participant assumptions. The future cash flows are discounted using an applicable discount rate as well as any potential risk premium to reflect the inherent risk of holding a standalone intangible asset. The key uncertainties in the RFR and MPEEM calculations, as applicable, are: the selection of an appropriate royalty rate, assumptions used in developing internal revenue growth and expense forecasts, assumed customer attrition rates, as well as the perceived risk associated with those forecasts in determining the discount rate and risk premium. The costs of amortizable intangible assets are recognized over their expected useful lives, typically between three and fifteen years, using the straight-line method. Intangible assets that are subject to amortization are evaluated for impairment using a process similar to that used to evaluate long-lived assets described below. Intangible assets not subject to amortization are assessed for impairment at least annually and whenever events or changes in circumstances indicate that it is more likely than not that an asset may be impaired. As we determined the COVID-19 pandemic was a triggering event, we performed an interim impairment test of certain intangible assets as of March 28, 2020 in addition to our annual impairment test during the fourth quarter. The impairment test for indefinite-lived intangible assets consists of a comparison of the fair value of the intangible asset with its carrying amount. An impairment loss is recognized for the amount by which the carrying value exceeds the fair value of the asset. The Company did not record any intangible asset impairments in 2020, 2019 or 2018. Refer to Note 5 – Acquisitions and Note 11 – Goodwill and Other Intangibles in the Notes to Consolidated Financial Statements for more information. Equity Investments. For investments in which the Company owns or controls from 20 percent to 50 percent of the voting shares, the Company uses the equity method of accounting. The Company's share of net earnings or losses from equity method investments is included in the Consolidated Statements of Operations. The Company carries other investments, for which the Company does not have the ability to exercise significant influence, at fair value, with changes in fair value recognized in net income. For equity investments that do not have a readily determinable fair value, the Company measures the investment at cost less impairment, plus or minus observable price changes. The Company periodically evaluates the carrying value of its investments. See Note 9 – Investments for further details about the Company's evaluation of the fair value of its investments. Long-Lived Assets. The Company continually evaluates whether events and circumstances have occurred that indicate the remaining estimated useful lives of its definite-lived intangible assets and other long-lived assets may warrant revision or that the remaining balance of such assets may not be recoverable. Once an impairment indicator is identified, the Company tests for recoverability of the related asset group using an estimate of undiscounted cash flows over the asset group's remaining life. If an asset group's carrying value is not recoverable, the Company records an impairment loss based on the excess of the carrying value of the asset group over the long-lived asset group's fair value. Fair value is determined using observable inputs, including the use of appraisals from independent third parties, when available, and, when observable inputs are not available, based on the Company's assumptions of the data that market participants would use in pricing the asset, based on the best information available in the circumstances. Specifically, the Company uses discounted cash flows to determine the fair value of the asset when observable inputs are unavailable. The Company tested its long-lived asset balances for impairment as indicators arose during 2020, 2019 and 2018, resulting in impairment charges of $0.9 million, $3.0 million and $12.7 million, respectively, which are recognized either in Restructuring, exit and impairment charges or Selling, general and administrative expense in the Consolidated Statements of Operations. Other Long-Term Assets. Other long-term assets consists mainly of capitalized financing costs and deposits. Revenue Recognition. Revenue is recognized as performance obligations under the terms of contracts with customers are satisfied; this occurs when control of promised goods is transferred to the customer. The Company recognizes revenue related to the sale of extended warranty contracts that extend the coverage period beyond the standard warranty period over the life of the extended warranty period. Revenue is measured as the amount of consideration expected to be entitled to in exchange for transferring goods or providing services. The Company has excluded sales, value add, and other taxes collected concurrent with revenue-producing activities from the determination of the transaction price for all contracts. The Company has elected to account for shipping and handling activities that occur after the customer has obtained control of a good as a fulfillment activity. For all contracts with customers, the Company has not adjusted the promised amount of consideration for the effects of a significant financing component as the period between the transfer of the promised goods and the customer's payment is expected to be one year or less. For product sales, the Company transfers control and recognizes revenue at the time the product ships from a manufacturing or distribution facility ("free on board shipping point"), or at the time the product arrives at the customer's facility ("free on board destination"). When the shipping terms are "free on board shipping point", the customer obtains control and is able to direct the use of, and obtain substantially all of the benefits from, the products at the time the products are shipped. For shipments provided under "free on board destination", control transfers to the customer upon delivery. Payment terms vary but are generally due within 30 days of transferring control. For the Company's Boat and Propulsion segments, most product sales to dealers are wholesale financed through the Company's joint venture, Brunswick Acceptance Company, LLC (BAC), or other lending institutions, and payment is typically due in the month of shipment. For further information on the BAC joint venture, refer to Note 10 – Financing Joint Venture . In addition, periodically the Company may require the customer to provide up-front cash deposits in advance of performance. The Company also sells separately priced extended warranty contracts that extend the coverage period beyond the standard warranty period. When determining an appropriate allocation of the transaction price to the extended warranty performance obligation, the Company uses an observable price to determine the stand-alone selling price. Extended warranties typically range from an additional 1 year to 3 years. The Company receives payment at the inception of the contract and recognizes revenue over the extended warranty coverage period. This time-elapsed method is used to measure progress because the Company, on average, satisfies its performance obligation evenly over the warranty period. See Note 2 – Revenue Recognition for more information. Advertising Costs. The Company records advertising and promotion costs in Selling, general and administrative expense in the Consolidated Statements of Operations in the period when the advertising first takes place. Advertising and promotion costs were $29.7 million, $35.6 million and $31.7 million for the years ended December 31, 2020, 2019 and 2018, respectively. Foreign Currency. The functional currency for the majority of Brunswick's operations is the U.S. dollar. All assets and liabilities of operations with a functional currency other than the U.S. dollar are translated at period end current rates. The resulting translation adjustments are recorded in Accumulated other comprehensive loss, net of tax. Revenues and expenses of operations with a functional currency other than the U.S. dollar are translated at the average exchange rates for the period. Transaction gains and losses resulting from changes in foreign currency exchange rates are recorded in either Cost of sales or Other expense, net in the Consolidated Statements of Operations. Share-Based Compensation. The Company records amounts for all share-based compensation, including non-vested stock awards and performance-based share awards over the vesting period in the Consolidated Statements of Operations based upon their fair values at the date of the grant. Share-based compensation costs are included in Selling, general and administrative expense in the Consolidated Statements of Operations. See Note 18 – Stock Plans and Management Compensation for a description of the Company's accounting for share-based compensation plans. Research and Development . Research and development costs are expensed as incurred. Derivatives. The Company uses derivative financial instruments to manage its risk associated with movements in foreign currency exchange rates, interest rates, and commodity prices. These instruments are used in accordance with guidelines established by the Company's management and are not used for trading or speculative purposes. The Company records all derivatives on the Consolidated Balance Sheets at fair value. See Note 14 – Financial Instruments for further discussion. Recently Adopted Accounting Standards Current Expected Credit Loss : In June 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-13, Measurement of Credit Losses on Financial Instruments, which updated the Accounting Standards Codification (ASC) to add an impairment model that is based on expected losses rather than incurred losses. On January 1, 2020, the Company adopted this standard and the adoption did not have a material impact on the consolidated financial statements. Defined Benefit Plan Disclosures : In August 2018, the FASB issued ASU 2018-14, Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans, which modifies the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. The amendment is effective for interim and annual periods ending after December 15, 2020, with early adoption permitted. The Company adopted this standard and it did not have a material impact on the consolidated financial statements.

Revenue Recognition (Notes)

Revenue Recognition (Notes)	12 Months Ended
	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	Revenue Recognition The following table presents the Company's revenue into categories that depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors: Year Ended December 31, 2020 (in millions) Propulsion Parts & Accessories Boat Total Geographic Markets United States $ 1,207.8 $ 1,091.0 $ 957.5 $ 3,256.3 Europe 255.2 180.5 128.5 564.2 Asia-Pacific 240.4 117.9 27.7 386.0 Canada 66.7 80.9 114.2 261.8 Rest-of-World 108.3 38.5 22.4 169.2 Segment Eliminations (263.1) (26.9) — (290.0) Total $ 1,615.3 $ 1,481.9 $ 1,250.3 $ 4,347.5 Major Product Lines Outboard Engines $ 1,471.8 $ — $ — $ 1,471.8 Controls, Rigging, and Propellers 258.4 — — 258.4 Sterndrive Engines 148.2 — — 148.2 Distribution Parts and Accessories — 664.2 — 664.2 Advanced Systems Group — 412.1 — 412.1 Engine Parts and Accessories — 432.5 — 432.5 Aluminum Freshwater Boats — — 488.5 488.5 Recreational Fiberglass Boats — — 427.1 427.1 Saltwater Fishing Boats — — 298.7 298.7 Business Acceleration — — 40.5 40.5 Boat Eliminations/Other — — (4.5) (4.5) Segment Eliminations (263.1) (26.9) — (290.0) Total $ 1,615.3 $ 1,481.9 $ 1,250.3 $ 4,347.5 Year Ended December 31, 2019 (in millions) Propulsion Parts & Accessories Boat Total Geographic Markets United States $ 1,152.1 $ 978.5 $ 1,009.0 $ 3,139.6 Europe 235.1 175.8 115.6 526.5 Asia-Pacific 143.2 103.4 31.2 277.8 Canada 62.7 80.1 154.8 297.6 Rest-of-World 99.8 42.3 23.7 165.8 Segment Eliminations (269.7) (29.2) — (298.9) Total $ 1,423.2 $ 1,350.9 $ 1,334.3 $ 4,108.4 Major Product Lines Outboard Engines $ 1,306.7 $ — $ — $ 1,306.7 Controls, Rigging, and Propellers 213.6 — — 213.6 Sterndrive Engines 172.6 — — 172.6 Distribution Parts and Accessories — 571.8 — 571.8 Advanced Systems Group — 413.0 — 413.0 Engine Parts and Accessories — 395.3 — 395.3 Aluminum Freshwater Boats — — 556.6 556.6 Recreational Fiberglass Boats — — 438.8 438.8 Saltwater Fishing Boats — — 316.6 316.6 Business Acceleration — — 24.1 24.1 Boat Eliminations/Other — — (1.8) (1.8) Segment Eliminations (269.7) (29.2) — (298.9) Total $ 1,423.2 $ 1,350.9 $ 1,334.3 $ 4,108.4 As of January 1, 2020, $96.2 million of contract liabilities associated with extended warranties and customer deposits were reported in Accrued expenses and Other Long-term liabilities with $34.8 million of this amount recognized as revenue during year ended December 31, 2020. As of December 31, 2020, total contract liabilities were $113.0 million. The total amount of the transaction price allocated to unsatisfied performance obligations as of December 31, 2020 is $106.2 million for contracts greater than one year, which includes extended warranties. The Company expects to recognize approximately $30.9 million of this amount in 2021 and $75.3 million thereafter. Contract assets as of January 1, 2020 and December 31, 2020 were not material. In addition, costs to obtain and fulfill contracts during the period were not material.

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Groups, Including Discontinued Operations, Disclosure [Text Block]	Discontinued Operations On June 27, 2019, the Company completed the sale of its Fitness business to KPS Capital Partners, LP. As a result, this business, which was previously reported in the Company's Fitness segment, is being reported as discontinued operations in the Consolidated Statements of Operations and Consolidated Statements of Cash Flows for all periods presented. The sale of the Fitness business resulted in net proceeds of $466.2 million and an after-tax loss of $45.4 million. During the third quarter of 2020, the Company made a payment of $3.3 million, including a $7.5 million final working capital settlement as well as $1.2 million of retained liabilities partially offset by a $5.4 million cash true-up. In connection with the sale of its Fitness business, the Company retained assets of $26.4 million primarily related to VAT receivables, and retained liabilities of $45.1 million primarily related to VAT payables, product warranty liabilities and certain employee benefits. As of December 31, 2020, retained assets and liabilities were $4.6 million and $12.7 million , respectively. As of December 31, 2019, retained assets and liabilities were $16.4 million and $30.5 million , respectively. The following table discloses the results of operations of the business reported as discontinued operations for the years ended December 31, 2020, December 31, 2019 and December 31, 2018 respectively: (in millions) 2020 2019 2018 Net sales $ — $ 448.3 $ 1,038.3 Cost of sales — 334.6 764.3 Selling, general and administrative expense (A) (B) 0.5 113.3 206.1 Research and development expense — 12.6 27.4 Restructuring, exit and impairment charges (C) — 138.3 26.1 Other (income), net — (0.3) (0.1) (Loss) earnings from discontinued operations before income taxes (A) (B) (C) (0.5) (150.2) 14.5 Income tax provision (benefit) 0.0 (32.7) 2.6 (Loss) earnings from discontinued operations, net of tax (A) (B) (C) (0.5) (117.5) 11.9 Loss on disposal of discontinued operations, net of tax (D) (1.5) (43.9) — Net (loss) earnings from discontinued operations, net of tax $ (2.0) $ (161.4) $ 11.9 (A) The Company recorded $16.5 million and $19.3 million for the year ended December 31, 2019 and December 31, 2018, respectively, of net costs incurred in connection with the sale of its Fitness business (B) The Company recorded $(0.5) million for the year ended December 31, 2020, primarily resulting from adjustments in certain liabilities as part of the sale of the Fitness business. During 2018, the Company recorded adjustments to certain liabilities that were retained as part of the sale of the bowling businesses. As a result, Earnings (loss) from discontinued operations, net of tax, includes a gain of $3.0 million ($2.2 million after tax) for the year ended December 31, 2018. (C) In the first quarter of 2019, the Company re-evaluated the fair value of the Fitness reporting unit and determined the fair value of the business was less than its carrying value. As a result, (Loss) earnings from discontin ued operations, net of tax, includes a $137.2 million ($103.0 million after tax) goodwill impairment charge for the year ended December 31, 2019. (D) The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2020 includes a pre-tax loss o f $2.0 million and a net tax benefit of $0.5 million. The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2019 includes a pre-tax loss of $51.3 million and a net tax benefit of $7.4 million.

Restructuring, Exit, Impairment

Restructuring, Exit, Impairment and Integration Activities	12 Months Ended
	Dec. 31, 2020
Restructuring and Related Activities [Abstract]
Restructuring Activities	Restructuring, Exit and Impairment Activities The Company has announced and implemented a number of initiatives designed to improve its cost structure and general operating efficiencies and better utilize overall capacity. These initiatives resulted in the recognition of restructuring, exit and impairment charges in the Consolidated Statements of Operations during 2020, 2019 and 2018. The costs incurred under these initiatives include: • Restructuring and Exit Activities – These amounts relate to: • Employee termination and other benefits • Inventory adjustments to lower of cost or net realizable value • Costs to retain and relocate employees • Consulting costs • Consolidation of manufacturing footprint • Facility shutdown costs • Costs associated with the wind-down of Sport Yacht & Yachts • Asset Disposition and Impairment Actions The Company has reported restructuring, exit and impairment activities based on the specific driver of the cost and reflected the expense in the accounting period when the Company has committed to or incurred the cost, as appropriate. The following table is a summary of the net expense associated with the restructuring, exit and impairment activities. (in millions) 2020 2019 2018 Restructuring and exit activities: Employee termination and other benefits $ 3.0 $ 11.7 $ 9.5 Current asset write-downs — 0.5 18.9 Professional fees 0.1 3.1 8.0 Other (A) 0.5 0.5 10.7 Asset disposition and impairment actions: Definite-lived and other asset impairments 0.5 3.0 12.7 Valuation (reversal) allowance on disposal group — — (5.0) Total restructuring, exit and impairment charges $ 4.1 $ 18.8 $ 54.8 (A) The charges in 2018 primarily relate to warranty adjustments in connection with the wind-down of Sport Yacht & Yachts. The following tables summarize the change in accrued restructuring, exit and impairment charges within Accrued expenses in the Consolidated Balance Sheets for the years ended December 31, 2020, 2019 and 2018: Dec 31, 2019 2020 Activity Dec 31, 2020 (in millions) Accrued Charges Total Charges Non-Cash Charges Payments (A) Accrued Charges (B) Parts & Accessories $ 1.2 $ 0.8 $ — $ (1.7) $ 0.3 Boat 6.1 1.3 (0.5) (5.7) 1.2 Corporate 1.5 2.0 — (1.8) 1.7 Total $ 8.8 $ 4.1 $ (0.5) $ (9.2) $ 3.2 Dec 31, 2018 2019 Activity Dec 31, 2019 (in millions) Accrued Charges Total Charges Non-Cash Charges Payments (A) Accrued Charges Parts & Accessories $ — $ 4.6 $ — $ (3.4) $ 1.2 Boat 15.4 9.7 (3.5) (15.5) 6.1 Corporate 0.7 4.5 — (3.7) 1.5 Total $ 16.1 $ 18.8 $ (3.5) $ (22.6) $ 8.8 Dec 31, 2017 2018 Activity Dec 31, 2018 (in millions) Accrued Charges Total Charges Non-Cash Charges Payments (A) Accrued Charges Boat $ 3.7 $ 54.1 $ (26.6) $ (15.8) $ 15.4 Corporate — 0.7 — — 0.7 Total $ 3.7 $ 54.8 $ (26.6) $ (15.8) $ 16.1 (A) Cash payments may include payments related to prior period charges. (B) The accrued charges as of December 31, 2020 are expected to be paid during 2021. Reductions in demand for the Company's products, further refinement of its product portfolio, further opportunities to reduce costs or the cost of integrating future acquisitions may result in additional restructuring, exit and impairment charges in future periods. Actions Initiated in 2020 During 2020, the Company recorded restructuring charges within the Boat segment related to the consolidation of its Greenville manufacturing location in order to streamline the overall cost structure. The following table is a summary of the expenses associated with the restructuring, exit and impairment activities for the year ended December 31, 2020, related to actions initiated in 2020: (in millions) Parts & Accessories Boat Corporate Total Restructuring and exit activities: Employee termination and other benefits $ 0.5 $ 0.4 $ 1.8 $ 2.7 Other — 0.5 — 0.5 Asset disposition and impairment actions: Definite-lived and other asset impairments — 0.5 — 0.5 Total restructuring, exit and impairment charges $ 0.5 $ 1.4 $ 1.8 $ 3.7 Actions Initiated in 2019 During 2019, the Company recorded restructuring charges within the Boat segment related to consolidating its commercial and government products operations in order to rationalize its product line to better align with customer demand. In addition, the Company announced headcount reductions aimed at streamlining the cost structure of its enterprise-wide general and administrative functions, and recorded restructuring charges in 2019 as a result of these actions. The following table is a summary of the expenses associated with the restructuring, exit and impairment activities for the year ended December 31, 2020 and December 31, 2019, related to actions initiated in 2019: December 31, 2020 December 31, 2019 (in millions) Parts & Accessories Boat Corporate Total Parts & Accessories Boat Corporate Total Restructuring and exit activities: Employee termination and other benefits $ 0.3 $ (0.1) $ 0.1 $ 0.3 $ 4.6 $ 4.0 $ 3.1 $ 11.7 Current asset write-downs — — — — — 0.5 — 0.5 Professional fees — — 0.1 0.1 — 1.7 1.4 3.1 Other — — — — — 0.5 — 0.5 Asset disposition and impairment actions: Definite-lived and other asset impairments — — — — — 3.0 — 3.0 Total restructuring, exit and impairment charges $ 0.3 $ (0.1) $ 0.2 $ 0.4 $ 4.6 $ 9.7 $ 4.5 $ 18.8 Actions Initiated in 2018 In the second quarter of 2018, the Company ended the sale process of Sea Ray. As a result, the Company recorded an additional impairment of long-lived assets. During the second, third and fourth quarters of 2018, the Company also recorded additional charges in connection with the wind down of Sport Yacht & Yachts, mainly relating to inventory write-downs, increased warranty liabilities and employee severance and retention bonuses. These costs were partially offset by the reversal of the valuation allowance in the second quarter of 2018 for estimated transaction costs which was recorded when the assets and liabilities of Sea Ray were initially classified as held for sale. In 2018, the Company executed headcount reductions in the Boat segment aimed at improving general operating efficiencies. The Company also recorded charges within Corporate related to the transition of certain corporate officers. The following table is a summary of the expenses associated with the restructuring, exit and impairment activities for the year ended December 31, 2018, related to actions initiated in 2018: (in millions) Boat Corporate Total Restructuring and exit activities: Employee termination and other benefits $ 4.7 $ 0.7 $ 5.4 Current asset write-downs 18.9 — 18.9 Professional fees 3.9 — 3.9 Other 10.7 — 10.7 Asset disposition and impairment actions: Definite-lived and other asset impairments 12.7 — 12.7 Total restructuring, exit and impairment charges $ 50.9 $ 0.7 $ 51.6 Actions Initiated in 2017 In the fourth quarter of 2017, the Board of Directors authorized the Company to exit its Sea Ray business, including the Meridian brand. In conjunction with this decision, the Company evaluated the disposal group's fair value, less costs to sell, and compared that to its carrying value at the time. As a result, the Company recorded an impairment of long-lived assets as well as a valuation allowance for estimated transaction costs. In the second, third and fourth quarters of 2017, the Company implemented headcount reductions in the Boat segment aimed at improving general operating efficiencies. In the first quarter of 2017, the Company announced the closure of its boat manufacturing facility in Joinville, Santa Catarina, Brazil, as a result of continued market weakness due partially to unfavorable foreign currency impacts in the region. As a result, the Company recorded restructuring, exit and impairment charges including the write-down of inventory. The facility manufactured certain Bayliner and Sea Ray boat models for the Latin American market. The long-lived assets at this facility were previously fully impaired. The following table is a summary of the expense associated with the restructuring, exit and impairment activities within the Boat segment, for the year ended December 31, 2018, related to actions initiated in 2017: (in millions) Restructuring and exit activities: Employee termination and other benefits $ 4.1 Professional fees 4.1 Asset disposition and impairment actions: Valuation allowance (reversal) on disposal (5.0) Total restructuring, exit, integration and impairment charges $ 3.2

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Acquisitions	Acquisitions 2019 Acquisitions On May 21, 2019, the Company acquired 100 percent of Freedom Boat Club, a leading boat club operator based in Florida. The acquisition expands the Company's presence and scale within the emerging and fast-growing boat club market, providing its members access to a fleet of boats. Freedom Boat Club is included as part of the Company's Boat segment. The net cash consideration the Company paid to acquire Freedom Boat Club was $64.1 million, in addition to acquisition-related transaction costs of $2.5 million, for the year ended December 31, 2019. The final opening balance sheet included $29.2 million of identifiable intangible assets, including customer relationships, franchise agreements and trade names for $11.1 million, $4.9 million and $13.2 million, respectively, along with $27.3 million of goodwill, most of which is deductible for tax purposes. Included in the goodwill amount is $0.9 million of purchase accounting adjustments, primarily related to deferred taxes recorded in the year ended December 31, 2020. The amount assigned to Freedom Boat Club's customer relationships and franchise agreements will be amortized over their estimated useful lives of approximately 10 years and 15 years, respectively. The 2019 Freedom Boat Club acquisition was not material to the Company's net sales, results of operations or total assets during any period presented. Accordingly, the Company's consolidated results from operations do not differ materially from historical performance as a result of this acquisition and, therefore, pro forma results are not presented. 2018 Acquisitions On August 9, 2018, the Company completed its acquisition of the Global Marine & Mobile business of Power Products Holdings, LLC (Power Products) for $909.6 million in cash, on a cash-free, debt-free basis. Brunswick used proceeds from a combination of 364-day, three-year and five-year term loans (Term Loans) totaling $800.0 million as described in the Annual Report on Form 10-K for the fiscal year ended December 31, 2018, along with cash on hand, to fund this acquisition. Power Products is a leading provider of electrical products to marine and other recreational and specialty vehicle markets. The acquisition advances Brunswick's leadership by adding integrated electrical systems solutions to the marine market and an array of other mobile, specialty vehicle and industrial applications. Power Products is managed as part of the Parts and Accessories segment. The following table is a summary of the assets acquired, liabilities assumed and net cash consideration paid for the Power Products acquisition during 2018: (in millions) Fair Value Useful Life Accounts and notes receivable $ 38.3 Inventory 64.3 Goodwill (A) (B) (C) 355.5 Trade names 111.0 Indefinite Customer relationships 430.0 15 years Property and equipment 10.6 Other assets 5.6 Total assets acquired 1,015.3 Accounts payable (B) 27.3 Accrued expenses (B) (C) 22.0 Deferred tax liabilities (C) 56.4 Total liabilities assumed 105.7 Net cash consideration paid (B) (C) $ 909.6 (A) The goodwill recorded for the acquisition of Power Products is partially deductible for tax purposes. (B) Includes $4.4 million and $3.0 million of purchase accounting adjustments in the first and second quarters of 2019, respectively, primarily related to contingency reserves. (C) Includes $3.9 million of purchase accounting adjustments in the third quarter of 2019 primarily related to deferred taxes. Pro Forma Financial Information (Unaudited) The pro forma information has been prepared as if the Power Products acquisition and the related debt financing had occurred on January 1, 2018. These pro forma results are based on estimates and assumptions which the Company believes to be reasonable. They are not the results that would have been realized had the acquisition actually occurred on January 1, 2018 and are not necessarily indicative of Brunswick's consolidated net earnings in future periods. The pro forma results include adjustments primarily related to interest expense on the Term Loans and amortization of intangible assets. (in millions) Year Ended December 31, 2018 Pro forma Net sales $ 4,271.1 Pro forma Operating earnings 362.8 Pro forma Net earnings from continuing operations 239.8 The pro forma results reflect an effective income tax rate of 17.2 percent for the year ended December 31, 2018.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Segment Data	Segment Information Change in Reportable Segments Effective January 1, 2020, the Company changed its management reporting and updated its reportable segments to Propulsion, Parts and Accessories and Boat (inclusive of Business Acceleration) to align with its strategy. Concurrent with this change, the Company has changed its measurement of segment profit and loss due to a decision to streamline internal and external reporting practices relating to marine engines sold from the Propulsion segment to the Boat segment. This change in presentation, which is not the result of a change in business practice, more closely follows current market dynamics, and provides improved comparability with other boat companies. Reportable Segments The Company's segments are defined by management's reporting structure and operating activities. The Company's reportable segments are the following: Propulsion . The Propulsion segment manufactures and markets a full range of outboard, sterndrive, and inboard engines, as well as propulsion-related controls, rigging, and propellers. These products are principally sold directly to boat builders, including Brunswick's Boat segment, and through marine retail dealers worldwide. The Propulsion segment primarily markets under the Mercury, Mercury MerCruiser, Mariner, Mercury Racing, and Mercury Diesel brands. The segment's engine manufacturing plants are located mainly in the United States and China, along with a joint venture in Japan, with sales mainly to markets in the Americas, Europe and Asia-Pacific. Parts & Accessories. The Parts & Accessories (P&A) segment consists of the Engine Parts and Accessories and the Advanced Systems Group operating segments, which are aggregated and presented as a single reportable segment. The P&A segment manufactures, markets, and supplies parts and accessories for both marine and non-marine markets. These products are designed for and sold mostly to aftermarket retailers, distributors, and distribution businesses, as well as original equipment manufacturers (including Brunswick brands). Branded parts and accessories include consumables, such as engine oils and lubricants, and are sold under the Mercury, Mercury Precision Parts, Quicksilver, and Seachoice brands. The P&A segment also consists of distribution businesses such as Land 'N' Sea, Kellogg Marine Supply, Lankhorst Taselaar, BLA, and Payne's Marine Group, which distribute third-party and Company products. These businesses are leading distributors of marine parts and accessories throughout North America, Europe, and Asia-Pacific. The P&A segment also includes the collection of brands acquired with Power Products in 2018 and certain other businesses operating under the Ancor, Attwood, BEP, Blue Sea Systems, CZone, Del City, Garelick, Lenco Marine, Marinco, Mastervolt, MotorGuide, ParkPower, Progressive Industries, ProMariner, and Whale brand names. Products include marine electronics and control systems, instruments, trolling motors, fuel systems, electrical systems, as well as specialty vehicle, mobile, and transportation aftermarket products. The P&A segment's manufacturing and distribution facilities are primarily located in North America, Europe, Australia and New Zealand. Boat. The Boat segment designs, manufactures and markets the following boat brands and products: Sea Ray sport boats and cruisers; Bayliner sport cruisers, runabouts, and Heyday wake boats; Boston Whaler fiberglass offshore boats; Lund fiberglass fishing boats; Crestliner, Cypress Cay, Harris, Lowe, Lund and Princecraft aluminum fishing, utility, pontoon boats, and deck boats; and Thunder Jet heavy-gauge aluminum boats. The Boat segment procures substantially all of its outboard engines, gasoline sterndrive engines, and gasoline inboard engines from Brunswick's Propulsion segment. The Boat Group also includes Brunswick boat brands based in Europe and Asia-Pacific, which include Quicksilver, Uttern, and Rayglass (including Protector and Legend). The Boat segment's products are manufactured mainly in the United States, Europe and Mexico and sold through a global network of dealer and distributor locations, primarily in North America and Europe. The Boat segment also includes the Business Acceleration business, which through innovative service models, shared access solutions, including the Freedom Boat Club business acquired in 2019, dealer services and emerging technology, aims to provide exceptional experiences to attract a wide range of customers to the marine industry and shape the future of boating. The Company evaluates performance based on segment operating earnings. Segment operating earnings do not include the expenses of corporate administration, pension costs and pension settlement charges, impairments or gains on the sale of equity investments, earnings from unconsolidated affiliates, other expenses and income of a non-operating nature, transaction financing charges, interest expense, and income or provisions or benefits for income taxes. Corporate/Other results include items such as corporate staff and administrative costs, investments in technology solutions, business development and other growth-related expenses, including IT enhancements. Corporate/Other total assets consist of mainly cash, cash equivalents and investments in short-term marketable securities, restricted cash, income tax balances and investments in unconsolidated affiliates. Segment eliminations adjust for sales between the Company's reportable segments and primarily relate to the sale of engines and parts and accessories to various boat brands, which are consummated at established arm's length transfer prices as the intersegment pricing for these engines and parts and accessories are based upon and consistent with selling prices to third party customers. Information about the operations of Brunswick's reportable segments is set forth below: Reportable Segments Net Sales Operating Earnings (Loss) Total Assets (in millions) 2020 2019 2018 2020 2019 2018 2020 2019 Propulsion $ 1,878.4 $ 1,692.9 $ 1,759.3 $ 285.5 $ 240.3 $ 243.8 $ 962.4 $ 1,002.8 Parts & Accessories 1,508.8 1,380.1 1,234.3 275.4 237.5 188.0 1,500.6 1,519.0 Boat 1,250.3 1,334.3 1,471.3 70.2 76.2 9.1 488.1 473.0 Corporate/Other — — — (91.8) (83.0) (85.4) 819.5 569.6 Segment Eliminations (290.0) (298.9) (344.0) — — — — — Total $ 4,347.5 $ 4,108.4 $ 4,120.9 $ 539.3 $ 471.0 $ 355.5 $ 3,770.6 $ 3,564.4 Depreciation Amortization (in millions) 2020 2019 2018 2020 2019 2018 Propulsion $ 72.0 $ 62.9 $ 58.2 $ 0.0 $ 0.0 $ 0.0 Parts & Accessories 14.3 13.3 11.1 30.1 30.3 23.0 Boat 30.7 28.2 26.7 1.8 1.3 1.0 Corporate/Other 4.5 2.7 4.0 — — — Total $ 121.5 $ 107.1 $ 100.0 $ 31.9 $ 31.6 $ 24.0 Capital Expenditures Research & Development Expense (in millions) 2020 2019 2018 2020 2019 2018 Propulsion $ 113.7 $ 157.2 $ 109.2 $ 85.4 $ 84.6 $ 85.1 Parts & Accessories 21.1 23.4 17.1 19.8 18.8 10.7 Boat 37.6 47.0 48.5 20.7 18.2 25.7 Corporate/Other 10.0 5.0 5.4 — — — Total $ 182.4 $ 232.6 $ 180.2 $ 125.9 $ 121.6 $ 121.5 Geographic Segments Net sales Net property (in millions) 2020 2019 2018 2020 2019 United States $ 2,998.0 $ 2,871.1 $ 2,918.0 $ 774.2 $ 714.6 International 1,349.5 1,237.3 1,202.9 65.1 63.0 Corporate/Other — — — 24.3 18.8 Total $ 4,347.5 $ 4,108.4 $ 4,120.9 $ 863.6 $ 796.4

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. There is a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable. • Level 1 - Quoted prices in active markets for identical assets or liabilities. These are typically obtained from real-time quotes for transactions in active exchange markets involving identical assets or liabilities. • Level 2 - Inputs, other than quoted prices included within Level 1, which are observable for the asset or liability, either directly or indirectly. These are typically obtained from readily available pricing sources for comparable instruments. • Level 3 - Unobservable inputs, for which there is little or no market activity for the asset or liability. These inputs reflect the reporting entity's own assumptions of the data that market participants would use in pricing the asset or liability, based on the best information available in the circumstances. The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2020: (in millions) Level 1 Level 2 Total Assets: Cash equivalents $ 19.3 $ — $ 19.3 Short-term investments in marketable securities 56.7 — 56.7 Restricted cash 10.7 — 10.7 Derivatives — 2.2 2.2 Total assets $ 86.7 $ 2.2 $ 88.9 Liabilities: Derivatives $ — $ 12.0 $ 12.0 Deferred compensation 1.1 18.7 19.8 Total liabilities at fair value $ 1.1 $ 30.7 $ 31.8 Liabilities measured at net asset value 10.7 Total liabilities $ 42.5 The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2019: (in millions) Level 1 Level 2 Total Assets: Cash equivalents $ 0.3 $ — $ 0.3 Short-term investments in marketable securities 0.8 — 0.8 Restricted cash 11.6 — 11.6 Derivatives — 4.2 4.2 Total assets $ 12.7 $ 4.2 $ 16.9 Liabilities: Derivatives $ — $ 3.2 $ 3.2 Deferred compensation 1.2 18.8 20.0 Total liabilities at fair value $ 1.2 $ 22.0 $ 23.2 Liabilities measured at net asset value 8.5 Total liabilities $ 31.7 Refer to Note 14 – Financial Instruments for additional information related to the fair value of derivative assets and liabilities by class. In addition to the items shown in the tables above, see Note 17 – Postretirement Benefits for further discussion regarding the fair value measurements associated with the Company's postretirement benefit plans.

Financing Receivables

Financing Receivables	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Financing Receivables	Financing Receivables The Company has recorded financing receivables, which are defined as a contractual right to receive money, as assets on its Consolidated Balance Sheets as of December 31, 2020 and 2019. Substantially all of the Company’s financing receivables are for commercial customers, which includes receivables sold to third-party finance companies (Third-Party Receivables) and customer notes and other (Other Receivables). Third-Party Receivables are accounts that have been sold to third-party finance companies, but do not meet the definition of a true sale and are therefore recorded as an asset with an offsetting balance recorded as a secured obligation in Accrued expenses. Other Receivables are mostly comprised of notes from customers, which are originated by the Company in the normal course of business. Financing receivables are carried at their face amounts less an allowance for credit losses. The Company sells a broad range of marine products to a worldwide customer base and extends credit to its customers based upon an ongoing credit evaluation program. The Company’s business units maintain credit departments to manage financial exposure and perform credit risk assessments on an individual account basis. Accounts are not aggregated into categories for credit risk determinations. Due to the composition of the account portfolio, the Company does not believe that the credit risk posed by the Company’s financing receivables is significant to its operations, financial condition or cash flows. There were no significant troubled debt restructurings during the years ended December 31, 2020, 2019 or 2018. The Company’s financing receivables, excluding trade accounts receivable contractually due within one year as of December 31, 2020 and December 31, 2019 were $6.5 million and $8.8 million, respectively. The activity related to the allowance for credit loss on financing receivables during the years ended December 31, 2020 and December 31, 2019 was not material.

Investments

Investments	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investments	Investments Investments in Marketable Securities The Company may invest a portion of its cash reserves in marketable debt securities. These investments are reported in Short-term investments in marketable securities on the Consolidated Balance Sheets. The following is a summary of the fair values, which were equal to the amortized costs, of the Company's available-for-sale securities, all due in one year or less, as of December 31, 2020 and 2019. (in millions) December 31, 2020 December 31, 2019 Corporate Bonds $ 4.7 $ — Commercial Paper 51.2 — U.S. Treasury Bills 0.8 0.8 Total available-for-sale-securities $ 56.7 $ 0.8 The Company had no maturities of available-for-sale securities in 2020, 2019 and 2018. Equity Investments The Company has certain unconsolidated international and domestic affiliates that are accounted for using the equity method. The equity method is applied in situations in which the Company has the ability to exercise significant influence, but not control, over the investees. Management reviews equity investments for impairment whenever indicators are present, suggesting that the carrying value of an investment is not recoverable. The following items are examples of impairment indicators: significant, sustained declines in an investee’s revenue, earnings, and cash flow trends; adverse market conditions of the investee’s industry or geographic area; the investee’s inability to execute its operating plan; the investee’s inability to continue operations measured by several items, including liquidity; and other factors. Once an impairment indicator is identified, management uses considerable judgment to determine if the decline in value is other than temporary, in which case the equity investment is written down to its estimated fair value, which could negatively impact reported results of operations. The Company has a 50 percent interest in a Japanese manufacturing company, Tohatsu Marine Corporation (TMC), which is accounted for as an equity method investment. The Company purchases engines from TMC, which are sold mostly in international markets. The Company reported a net amount payable to TMC of $44.7 million and $27.3 million at December 31, 2020 and December 31, 2019, respectively, within Accounts payable in the Consolidated Balance Sheets. Purchases from TMC were $91.0 million, $102.6 million and $117.1 million in 2020, 2019, and 2018, respectively. In the fourth quarter of 2018, the Company sold its 36 percent equity investment in Bella-Veneet Oy (Bella), a Finnish boat manufacturer, which had previously been fully impaired due to significant declines in profitability that were deemed other than temporary. As a result, the Company recorded a gain of $2.3 million within Equity earnings on the Consolidated Statements of Operations, which was equal to the proceeds from the sale. Refer to Note 10 – Financing Joint Venture

Financing Joint Venture

Financing Joint Venture	12 Months Ended
	Dec. 31, 2020
Financial Services [Abstract]
Financial Services	Financing Joint Venture The Company, through its Brunswick Financial Services Corporation (BFS) subsidiary, owns a 49 percent interest in a joint venture, Brunswick Acceptance Company, LLC (BAC). CDF Joint Ventures, LLC (CDFJV), a subsidiary of Wells Fargo and Company, owns the remaining 51 percent. In February 2018, the parties entered into an amended and restated joint venture agreement (JV Agreement) to extend the term of their financial services through December 31, 2022. The JV Agreement contains a financial covenant that conforms to the maximum leverage ratio test in the Credit Facility described in Note 16 – Debt . The joint venture agreement contains provisions allowing for the renewal of the agreement or the purchase of the other party's interest in the joint venture at the end of its term. Alternatively, either partner may terminate the agreement at the end of its term. BAC is funded in part through a $1.0 billion secured borrowing facility from Wells Fargo Commercial Distribution Finance, LLC (WFCDF), which is in place through the term of the joint venture, and with equity contributions from both partners. BAC also sells a portion of its receivables to a securitization facility, the Wells Fargo Dealer Floorplan Master Note Trust, which is arranged by Wells Fargo. The sales of these receivables meet the requirements of a "true sale" and are therefore not retained on the financial statements of BAC. Neither the Company nor any of its subsidiaries guarantee the indebtedness of BAC. In addition, BAC is not responsible for any continuing servicing costs or obligations with respect to the securitized receivables. The Company considers BFS's investment in BAC as an investment in a variable interest entity of which the Company is not the primary beneficiary. As a result, the Company accounts for BFS's investment in BAC under the equity method and records it as a component of Equity investments in its Consolidated Balance Sheets. The Company records BFS's share of income or loss in BAC based on its ownership percentage in the joint venture in Equity earnings in its Consolidated Statements of Operations. BFS's equity investment is adjusted monthly to maintain a 49 percent interest in accordance with the capital provisions of the joint venture agreement. The Company funds its investment in BAC through cash contributions and reinvested earnings. BFS's total investment in BAC at December 31, 2020 and December 31, 2019 was $12.0 million and $18.8 million, respectively. The Company's maximum loss exposure relating to BAC is detailed as follows: (in millions) December 31, December 31, Investment $ 12.0 $ 18.8 Repurchase and recourse obligations (A) 37.0 36.5 Liabilities (B) (1.0) (1.7) Total maximum loss exposure $ 48.0 $ 53.6 (A) Repurchase and recourse obligations are off-balance sheet obligations provided by the Company for the Propulsion, Parts and Accessories and Boat segments, respectively, and are included within the Maximum Potential Obligations disclosed in Note 13 – Commitments and Contingencies . Repurchase and recourse obligations include a North American repurchase agreement with WFCDF and could be reduced by repurchase activity occurring under other similar agreements with WFCDF and affiliates. The Company's risk under these repurchase arrangements is partially mitigated by the value of the products repurchased as part of the transaction. Amounts above exclude any potential recoveries from the value of the repurchased product. (B) Represents accrued amounts for potential losses related to recourse exposure and the Company's expected losses on obligations to repurchase products, after giving effect to proceeds anticipated to be received from the resale of these products to alternative dealers. BFS recorded income related to the operations of BAC of $4.6 million, $6.9 million and $6.4 million in Equity earnings in the Consolidated Statements of Operations for the years ended December 31, 2020, 2019 and 2018, respectively. Cash Flows BFS reported cash flows from operating activities of $4.3 million, $7.6 million and $6.3 million within Other, net on the Consolidated Statements of Cash Flows in 2020, 2019 and 2018, respectively. In 2020, BFS reported net cash flows from investing activities within Investments on the Consolidated Statements of Cash flows. Such cash flows for 2020 were $7.2 million, consisting of $10.3 million of cash received and $(3.1) million of cash contributions; in 2019 were $2.2 million, consisting of $7.9 million of cash received and $(5.7) million of cash contributions; and in 2018 were $(3.8) million, consisting of $8.2 million of cash received and $(12.0) million of cash contributions.

Goodwill and Other Intangibles

Goodwill and Other Intangibles	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangibles	Goodwill and Other Intangibles Effective January 1, 2020, the Company changed its management reporting and updated its reportable segments to Propulsion, Parts and Accessories (P&A) and Boat (inclusive of Business Acceleration) to align with its strategy. Refer to Note 6 –Segment Information for further information on the Company's reportable segments. As a result, the Company reallocated goodwill to its reporting units within the Propulsion and P&A segments based on each reporting unit's relative fair value. Changes in the Company's goodwill during the period ended December 31, 2020, by segment, are summarized below: (in millions) 2019 Acquisitions Adjustments 2020 Propulsion $ 14.5 $ — $ 0.8 $ 15.3 Parts & Accessories 371.9 — 0.6 372.5 Boat 28.6 — 1.3 29.9 Total $ 415.0 $ — $ 2.7 $ 417.7 Changes in the Company's goodwill during the period ended December 31, 2019, by segment, are summarized below: (in millions) 2018 Acquisitions Adjustments 2019 Propulsion $ 14.6 $ — $ (0.1) $ 14.5 Parts & Accessories 360.5 — 11.4 371.9 Boat 2.2 26.0 0.4 28.6 Total $ 377.3 $ 26.0 $ 11.7 $ 415.0 Adjustments in the Boat segment for 2020 relate to finalizing purchase accounting related to the Freedom Boat Club acquisition, primarily related to deferred taxes. Adjustments in the Parts and Accessories segment for 2019 mainly relate to finalizing purchase accounting related to the Power Products acquisition. See Note 5 – Acquisitions for further details on the Company's acquisitions. Adjustments in both periods include the effect of foreign currency translation on goodwill denominated in currencies other than the U.S. dollar. As of December 31, 2020 and 2019, the Company had no accumulated impairment loss on Goodwill. The Company's intangible assets, included within Other intangibles, net on the Consolidated Balance Sheets as of December 31, 2020 and 2019, are summarized by intangible asset type below: 2020 2019 (in millions) Gross Amount Accumulated Amortization Gross Amount Accumulated Amortization Intangible assets: Customer relationships (A) $ 687.7 $ (306.4) $ 687.0 $ (274.6) Trade names 166.2 — 165.8 — Other (A) 18.5 (13.7) 18.4 (13.1) Total $ 872.4 $ (320.1) $ 871.2 $ (287.7) (A) The weighted average remaining amortization period for Customer relationships and Other intangibles assets were 12.1 years and 11.2 years, respectively, as of December 31, 2020. The Company's intangible assets, included within Other intangibles, net on the Consolidated Balance Sheets as of December 31, 2020 and 2019, are summarized by segment below: 2020 2019 (in millions) Gross Amount Accumulated Amortization Gross Amount Accumulated Amortization Propulsion $ 1.0 $ (0.5) $ 1.0 $ (0.5) Parts & Accessories 618.8 (112.4) 617.6 (81.9) Boat 252.6 (207.2) 252.6 (205.3) Total $ 872.4 $ (320.1) $ 871.2 $ (287.7) See Note 5 – Acquisitions for further details on intangibles acquired during 2019. Aggregate amortization expense for intangibles was $31.9 million , $31.6 million and $14.8 million for the years ended December 31, 2020, 2019 and 2018, respectively. Estimated amortization expense for intangible assets is $31.9 million for the year ending December 31, 2021, $31.6 million in 2022, $31.1 million in 2023, $31.1 million in 2024, and $31.1 million in 2025.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes On December 22, 2017, the Tax Cuts and Jobs Act (TCJA) was signed into law. The TCJA made significant changes to the U.S. tax code effective for 2018, although certain provisions affected the Company’s 2017 financial results. The changes impacting 2017 included, but are not limited to, the write-down of net deferred tax assets resulting from the reduction in the U.S. federal corporate income tax rate from 35 percent to 21 percent, imposing a one-time deemed repatriation tax on certain unremitted earnings of foreign subsidiaries, and bonus depreciation that will allow for immediate full expensing of qualified property acquired and placed in service after September 27, 2017. The TCJA also established new corporate tax laws that were effective in 2018 but did not impact the Company’s 2017 financial results. These changes included, but were not limited to, lowering the U.S. federal corporate income tax rate from 35 percent to 21 percent, a general elimination of U.S. federal income taxes on income and dividends from foreign subsidiaries, a new tax on global intangible low-taxed income (GILTI) net of allowable foreign tax credits, a new deduction for foreign derived intangible income (FDII), the repeal of the domestic production activity deduction, new limitations on the deductibility of certain executive compensation and interest expense, and limitations on the use of foreign tax credits to reduce the U.S. federal income tax liability. Due to the complexities involved in accounting for the enactment of the TCJA, the SEC staff issued Staff Accounting Bulletin (SAB) 118 which provided guidance on accounting for the income tax effects of the TCJA. SAB 118 provided a measurement period that should not extend beyond one year from the TCJA enactment date to complete the accounting for the impact of the TCJA. In 2018, the Company completed its accounting for the income tax effects of the TCJA and based on additional guidance from the IRS, we updated our calculations. For the year ended December 31, 2018, the Company recorded a tax benefit of $5.1 million. This benefit consists primarily of an additional $7.0 million tax expense related to the one-time deemed repatriation tax and a tax benefit of $12.1 million primarily related to additional tax benefits for pension contributions. The TCJA created a new requirement that certain income (i.e. GILTI) earned by controlled foreign corporations (CFC's) must be included in the gross income of the CFC's U.S. shareholder. Under U.S. GAAP, we are allowed to make an accounting policy choice of either (1) treating taxes due on future U.S. inclusions in taxable income related to GILTI as a current period expense when incurred (the “period cost method”) or (2) factoring such amounts into the Company's measurement of its deferred taxes (the “deferred method”). The Company has elected to use the period cost method and has reflected the impact of the GILTI tax in its financial statements for the periods ended December 31, 2020, December 31, 2019 and December 31, 2018, using such method. The sources of Earnings before income taxes were as follows: (in millions) 2020 2019 2018 United States $ 354.5 $ 10.1 $ 237.3 Foreign 118.2 100.6 73.4 Earnings before income taxes $ 472.7 $ 110.7 $ 310.7 The Income tax provision consisted of the following: (in millions) 2020 2019 2018 Current tax expense (benefit): U.S. Federal $ 66.9 $ 94.5 $ (2.3) State and local 9.8 6.3 5.7 Foreign 38.9 29.3 22.9 Total current 115.6 130.1 26.3 Deferred tax expense (benefit): U.S. Federal (17.3) (19.7) 30.5 State and local 1.1 (29.5) 0.9 Foreign (1.4) (0.6) (0.4) Total deferred (17.6) (49.8) 31.0 Income tax provision $ 98.0 $ 80.3 $ 57.3 Temporary differences and carryforwards giving rise to deferred tax assets and liabilities at December 31, 2020 and 2019 are summarized in the table below: (in millions) 2020 2019 Deferred tax assets: Loss carryforwards $ 71.2 $ 81.9 Tax credit carryforwards 51.1 71.8 Product warranties 28.1 28.4 Sales incentives and discounts 21.9 25.9 Compensation and benefits 20.9 10.5 Deferred revenue 18.1 16.1 Operating lease liabilities 16.3 17.1 Equity compensation 12.0 12.0 Deferred compensation 11.7 10.9 Postretirement and postemployment benefits 11.0 11.5 Other 54.3 51.4 Gross deferred tax assets 316.6 337.5 Valuation allowance (93.4) (93.3) Deferred tax assets 223.2 244.2 Deferred tax liabilities: Depreciation and amortization (48.0) (85.5) State and local income taxes (22.7) (24.3) Operating lease assets (14.9) (15.7) Other (6.3) (5.3) Deferred tax liabilities (91.9) (130.8) Total net deferred tax assets $ 131.3 $ 113.4 The Company's total net deferred tax asset as of December 31, 2020 and 2019 reflects the impact of the U.S. federal corporate tax rate at 21 percent that was part of the TCJA. The Company was required to value its net deferred tax balance at the lower tax rate. At December 31, 2020, the Company had a total valuation allowance against its deferred tax assets of $93.4 million. The remaining realizable value of deferred tax assets at December 31, 2020 was determined by evaluating the potential to recover the value of these assets through the utilization of tax loss and credit carrybacks, the reversal of existing taxable temporary differences and carryforwards, certain tax planning strategies and future taxable income exclusive of reversing temporary differences and carryforwards. At December 31, 2020, the Company retained valuation allowance reserves of $59.1 million against deferred tax assets in the U.S. primarily related to non-amortizable intangibles and various state operating loss carryforwards and state tax credits that are subject to restrictive rules for future utilization, and valuation allowances of $34.3 million for deferred tax assets related to foreign jurisdictions, primarily Brazil and Luxembourg. At December 31, 2020, the tax benefit of loss carryforwards totaling $71.2 million was available to reduce future tax liabilities. This deferred tax asset was comprised of $1.7 million for the tax benefit of federal net operating loss (NOL) carryforwards, $36.3 million for the tax benefit of state NOL carryforwards and $33.2 million for the tax benefit of foreign NOL carryforwards. NOL carryforwards of $57.0 million expire at various intervals between the years 2021 and 2039, while $14.2 million have an unlimited life. At December 31, 2020, tax credit carryforwards totaling $51.4 million were available to reduce future tax liabilities. This deferred tax asset was comprised of $7.5 million related to federal tax credits, and $43.9 million of various state tax credits related to research and development, capital investment and job incentives. Tax credit carryforwards of $51.4 million expire at various intervals between the years 2021 and 2035. No deferred income taxes have been provided as of December 31, 2020 or 2019, on the applicable undistributed earnings of the non-U.S. subsidiaries where the indefinite reinvestment assertion has been applied. If at some future date these earnings cease to be indefinitely reinvested and are repatriated, the Company may be subject to additional U.S. income taxes and foreign withholding and other taxes on such amounts. Pursuant to changes made by the TCJA, remittances from foreign subsidiaries made in 2018 and future years are generally not subject to U.S. income taxation. These remittances are either excluded from U.S. taxable income as earnings that have already been subjected to taxation, or in the alternative are subject to a 100 percent foreign dividends received deduction. The Company continues to provide deferred taxes, primarily related to foreign withholding taxes, on the undistributed net earnings of foreign subsidiaries and unconsolidated affiliates that are not deemed to be indefinitely reinvested in operations outside the United States, although such amounts were immaterial as of December 31, 2020 and 2019. As of December 31, 2020, 2019 and 2018 the Company had $4.1 million, $3.9 million and $2.3 million of gross unrecognized tax benefits, including interest, respectively. Substantially all of these amounts, if recognized, would impact the Company's tax provision and the effective tax rate. The Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense. As of December 31, 2020, 2019 and 2018, the amounts accrued for interest and penalties were not material. The following is a reconciliation of the total amounts of unrecognized tax benefits excluding interest and penalties for the 2020, 2019 and 2018 annual reporting periods: (in millions) 2020 2019 2018 Balance at January 1 $ 3.7 $ 2.3 $ 2.1 Gross increases - tax positions prior periods 0.1 2.0 0.6 Gross decreases - tax positions prior periods — (0.8) (0.7) Gross increases - current period tax positions 0.6 0.4 0.4 Decreases - settlements with taxing authorities (0.1) — (0.1) Reductions - lapse of statute of limitations (0.6) (0.2) — Balance at December 31 $ 3.7 $ 3.7 $ 2.3 The Company believes it is reasonably possible that the total amount of gross unrecognized tax benefits as of December 31, 2020 could decrease by approximately $0.5 million in 2021 due to settlements with taxing authorities or lapses in applicable statutes of limitation. Due to the various jurisdictions in which the Company files tax returns and the uncertainty regarding the timing of the settlement of tax audits, it is possible that there could be significant changes in the amount of unrecognized tax benefits in 2021, but the amount cannot be estimated at this time. The Company is regularly audited by federal, state and foreign tax authorities. The Internal Revenue Service (IRS) has completed its field examination and has issued its Revenue Agents Report through the 2014 tax year and all open issues have been resolved. The Company is currently open to tax examinations by the IRS for the 2017 through 2019 tax years. Primarily as a result of filing amended returns, which were generated by the closing of federal income tax audits, the Company is still open to state and local tax audits in major tax jurisdictions dating back to the 2014 taxable year. The Company is no longer subject to income tax examinations by any major foreign tax jurisdiction for years prior to 2013. The difference between the actual income tax provision and the tax provision computed by applying the statutory Federal income tax rate to Earnings before income taxes is attributable to the following: (in millions) 2020 2019 2018 Income tax provision at 21 percent $ 99.2 $ 23.2 $ 65.2 State and local income taxes, net of Federal income tax effect 11.6 (3.6) 8.8 Deferred tax asset valuation allowance (0.2) (3.5) 4.0 Equity compensation (1.1) (2.9) (3.1) Change in estimates related to prior years and prior years amended tax return filings 0.9 (2.9) 1.6 Federal and state tax credits (12.0) (11.6) (11.6) Taxes related to foreign income, net of credits 0.7 (5.2) (6.5) Deferred tax reassessment 5.4 1.9 3.3 Tax law changes — — (5.2) FDII deduction (11.4) (5.5) (2.6) Disproportionate tax effect released from Other comprehensive income — 91.4 — Other 4.9 (1.0) 3.4 Actual income tax provision $ 98.0 $ 80.3 $ 57.3 Effective tax rate 20.7 % 72.6 % 18.5 % During 2019, the Company fully exited its remaining defined benefit pension plans and recorded a pretax pension settlement charge of $292.8 million. The tax impact of this action consisted of a tax benefit of $73.9 million from the pension settlement charge, which was netted against a tax charge of $91.4 million resulting from the release of disproportionate tax effects in Accumulated Other Comprehensive Income. See Note 17 – Postretirement Benefits for more information. The Company's effective tax rate for 2019 and 2018 also reflects the benefit of having earnings from foreign entities that are in jurisdictions that have lower statutory tax rates than the U.S. with the most significant impact related to China and Poland, which have applicable statutory tax rates of 15 percent and 19 percent, respectively. In 2020, the Company has fewer foreign entities in jurisdictions that have a lower statutory tax rates than the U.S., with the most significant impact related to Poland, which has a 19% applicable statutory tax rate. Income tax provision allocated to continuing operations and discontinued operations for the years ended December 31 was as follows: (in millions) 2020 2019 2018 Continuing operations $ 98.0 $ 80.3 $ 57.3 Discontinued operations (0.5) (40.1) 2.6 Total income tax provision $ 97.5 $ 40.2 $ 59.9

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Financial Commitments The Company has entered into guarantees of indebtedness of third parties, primarily in connection with customer financing programs. Under these arrangements, the Company has guaranteed customer obligations to the financial institutions in the event of customer default, generally subject to a maximum amount that is less than the total outstanding obligations. The Company has also extended guarantees to third parties that have purchased customer receivables from Brunswick and, in certain instances, has guaranteed secured term financing of its customers. Potential payments in connection with these customer financing arrangements generally extend over several years. The single year and maximum potential cash obligations associated with these customer financing arrangements as of December 31, 2020 and December 31, 2019 were $30.9 million and $4.3 million, respectively. In most instances, upon repurchase of the receivable or note, the Company receives rights to the collateral securing the financing. The Company’s risk under these arrangements is partially mitigated by the value of the collateral that secures the financing. The Company has accounts receivable sale arrangements with third parties which are included in the guarantee arrangements discussed above. The Company treats the sale of receivables in which the Company retains an interest as a secured obligation as the transfers of the receivables under these arrangements do not meet the requirements of a "true sale." Accordingly, the current portion of receivables underlying these arrangements of $1.6 million and $1.7 million was recorded in Accounts and notes receivable and Accrued expenses as of December 31, 2020 and December 31, 2019, respectively. As of December 31, 2020 and 2019, the Company did not have any long-term receivables related to these arrangements. The Company has also entered into arrangements with third-party lenders in which it has agreed, in the event of a customer or franchisee default, to repurchase from the third-party lender those Brunswick products repossessed from the customer or franchisee. These arrangements are typically subject to a maximum repurchase amount. The single year and maximum potential cash payments the Company could be required to make to repurchase collateral as of December 31, 2020 and December 31, 2019 were $54.3 million and $63.1 million, respectively. Included within this repurchase amount are amounts related to BAC, as discussed in Note 10 –Financing Joint Venture. The Company’s risk under these repurchase arrangements is partially mitigated by the value of the products repurchased as part of the transaction. The Company had $0.8 million and $1.5 million accrued for potential losses related to repurchase exposure as of December 31, 2020 and December 31, 2019, respectively. The Company’s repurchase accrual represents the expected losses that could result from obligations to repurchase products, after giving effect to proceeds anticipated to be received from the resale of those products to alternative dealers. The Company has recorded its estimated net liability associated with losses from these guarantee and repurchase obligations on its Consolidated Balance Sheets based on historical experience and current facts and circumstances. Historical cash requirements and losses associated with these obligations have not been significant, but could increase if dealer defaults exceed current expectations. Financial institutions have issued standby letters of credit and surety bonds conditionally guaranteeing obligations on behalf of the Company totaling $6.1 million and $13.5 million, respectively, as of December 31, 2020. A large portion of these standby letters of credit and surety bonds are related to the Company’s self-insured workers' compensation program as required by its insurance companies and various state agencies. The Company has recorded reserves to cover the anticipated liabilities associated with these programs. Under certain circumstances, such as an event of default under the Company's revolving credit facility, or, in the case of surety bonds, a ratings downgrade, the Company could be required to post collateral to support the outstanding letters of credit and surety bonds. The Company was not required to post letters of credit as collateral against surety bonds as of December 31, 2020. The Company has a collateral trust arrangement with insurance carriers and a trustee bank. The trust is owned by the Company, but the assets are pledged as collateral against workers’ compensation related obligations in lieu of other forms of collateral including letters of credit. In connection with this arrangement, the Company had $9.1 million of cash in the trust at both December 31, 2020 and December 31, 2019, respectively, which was classified as Restricted cash in the Company's Consolidated Balance Sheets. Product Warranties The Company records a liability for product warranties at the time of the related product sale. The liability is estimated using historical warranty experience, projected claim rates and expected costs per claim. The Company adjusts its liability for specific warranty matters when they become known and the exposure can be estimated. Product failure rates as well as material usage and labor costs incurred in correcting a product failure affect the Company's warranty liabilities. If actual costs differ from estimated costs, the Company must make a revision to the warranty liability. Changes in the Company's warranty liabilities resulting from the Company's experience and adjustments related to changes in estimates are included as Aggregate changes for preexisting warranties presented in the table below. The following activity related to product warranty liabilities was recorded in Accrued expenses during the years ended December 31, 2020 and December 31, 2019: (in millions) 2020 2019 Balance at beginning of period $ 117.6 $ 116.8 Payments - Recurring (53.5) (59.2) Payments - Sport Yacht & Yachts and Fitness businesses (6.2) (12.5) Provisions/additions for contracts issued/sold 58.0 59.0 Aggregate changes for preexisting warranties 0.9 7.6 Foreign currency translation 0.9 0.0 Other (A) (1.8) 5.9 Balance at end of period $ 115.9 $ 117.6 (A) The Company retained a $5.9 million warranty liability from the sale of its Fitness business in 2019. The warranty liability pertains to product field campaigns for certain Cybex products designed prior to the Cybex acquisition. The Company recorded $(1.8) million of adjustments as of December 31, 2020. Extended Product Warranties End users of the Company's products may purchase a contract from the Company that extends product warranty beyond the standard period. For certain extended warranty contracts in which the Company retains the warranty or administration obligation, a deferred revenue liability is recorded based on the aggregate sales price for contracts sold. The liability is reduced and revenue is recognized on a straight-line basis over the contract period during which corresponding costs are expected to be incurred. The following activity related to deferred revenue for extended product warranty contracts was recorded in Accrued expenses and Other long-term liabilities during the years ended December 31, 2020 and December 31, 2019: (in millions) 2020 2019 Balance at beginning of period $ 75.3 $ 66.4 Extended warranty contracts sold 29.5 24.3 Revenue recognized on existing extended warranty contracts (17.3) (15.2) Foreign currency translation 0.2 0.2 Other (0.3) (0.4) Balance at end of period $ 87.4 $ 75.3 Legal The Company accrues for litigation exposure when it is probable that future costs will be incurred and such costs can be reasonably estimated. Adjustments to estimates are recorded in the period they are identified. Management does not believe that there is a reasonable possibility that a material loss exceeding the amounts already recognized for the Company's litigation claims and matters, if any, has been incurred. In light of existing accruals, the Company's litigation claims, when finally resolved, are not expected, in the opinion of management, to have a material adverse effect on the Company's consolidated financial position, results of operations or cash flows. Environmental The Company is involved in certain legal and administrative proceedings under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 and other federal and state legislation governing the generation and disposal of certain hazardous wastes. These proceedings, which involve both on- and off-site waste disposal or other contamination, in many instances seek compensation or remedial action from the Company as a waste generator under Superfund legislation, which authorizes action regardless of fault, legality of original disposition or ownership of a disposal site. The Company has established accruals based on a range of cost estimates for all known claims. The environmental remediation and clean-up projects in which the Company is involved have an aggregate estimated range of exposure of approximately $15.9 million to $38.2 million as of December 31, 2020. At December 31, 2020 and 2019, the Company had accruals for environmental liabilities of $15.9 million and $14.8 million, respectively, which were recorded within Accrued expenses and Other long-term liabilities in the Consolidated Balance Sheets. The Company recorded $1.6 million of environmental provisions for the year ended December 31, 2020 and recorded nominal environmental provisions for the year ended December 31, 2019 and December 31, 2018. The Company accrues for environmental remediation-related activities for which commitments or clean-up plans have been developed and for which costs can be reasonably estimated. All accrued amounts are generally determined in consultation with third-party experts on an undiscounted basis and do not consider recoveries from third parties until such recoveries are realized. In light of existing accruals, the Company's environmental claims, when finally resolved, are not expected, in the opinion of management, to have a material adverse effect on the Company's consolidated financial position, results of operations or cash flows.

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments	Financial Instruments The Company operates globally with manufacturing and sales facilities around the world. Due to the Company’s global operations, the Company engages in activities involving both financial and market risks. The Company utilizes normal operating and financing activities, along with derivative financial instruments, to minimize these risks. Derivative Financial Instruments. The Company uses derivative financial instruments to manage its risks associated with movements in foreign currency exchange rates and interest rates. Derivative instruments are not used for trading or speculative purposes. The Company formally documents its hedge relationships, including identification of the hedging instruments and the hedged items, as well as its risk management objectives and strategies for undertaking the hedge transaction. This process includes linking derivatives that are designated as hedges to specific forecasted transactions. The Company also assesses, both at the hedge’s inception and monthly thereafter, whether the derivatives used in hedging transactions are highly effective in offsetting the changes in the anticipated cash flows of the hedged item. If the hedging relationship ceases to be highly effective, or it becomes probable that a forecasted transaction is no longer expected to occur, the Company discontinues hedge accounting prospectively and immediately recognizes the gains and losses associated with those hedges. There were no material adjustments as a result of ineffectiveness to the results of operations for the years ended December 31, 2020, 2019 and 2018. The fair value of derivative financial instruments is determined through market-based valuations and may not be representative of the actual gains or losses that will be recorded when these instruments mature due to future fluctuations in the markets in which they are traded. The effects of derivative financial instruments are not expected to be material to the Company’s financial position or results of operations when considered together with the underlying exposure being hedged. Use of derivative financial instruments exposes the Company to credit risk with its counterparties when the fair value of a derivative contract is an asset. The Company mitigates this risk by entering into derivative contracts with highly rated counterparties. The maximum amount of loss due to counterparty credit risk is limited to the asset value of derivative financial instruments. Cash Flow Hedges. The Company enters into certain derivative instruments that are designated and qualify as cash flow hedges. The Company executes both forward and option contracts, based on forecasted transactions, to manage foreign currency exchange exposure mainly related to inventory purchase and sales transactions. A cash flow hedge requires that as changes in the fair value of derivatives occur, the portion of the change deemed to be effective is recorded temporarily in Accumulated other comprehensive loss and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. As of December 31, 2020, the term of derivative instruments hedging forecasted transactions ranged up to 18 months. The following activity related to cash flow hedges was recorded in Accumulated other comprehensive loss as of December 31: Accumulated Unrealized Derivative Gains (Losses) 2020 2019 (in millions) Pretax After-tax Pretax After-tax Beginning balance $ 1.1 $ (5.5) $ 6.2 $ (1.9) Net change in value of outstanding hedges (6.4) (4.7) 5.1 3.6 Net amount recognized into earnings (6.8) (5.0) (10.2) (7.2) Ending balance $ (12.1) $ (15.2) $ 1.1 $ (5.5) Other Hedging Activity. The Company has entered into certain foreign currency forward contracts that have not been designated as a hedge for accounting purposes. These contracts are used to manage foreign currency exposure related to changes in the value of assets or liabilities caused by changes in foreign exchange rates. The change in the fair value of the foreign currency derivative contract and the corresponding change in the fair value of the asset or liability of the Company are both recorded through earnings, each period as incurred. Commodity Price. The Company uses commodity swaps to hedge anticipated purchases of aluminum. As of December 31, 2020, the notional value of commodity swap contracts outstanding was $10.0 million , with the contracts maturing through 2021. The Company had no outstanding commodity swap contracts at December 31, 2019. The amount of gain or loss associated with the change in fair value of these instruments is deferred in Accumulated other comprehensive loss and recognized in Cost of sales in the same period or periods during which the hedged transaction affects earnings. As of December 31, 2020, the Company estimates that during the next 12 months it will reclassify $0.1 million of net gains (based on current prices) from Accumulated other comprehensive loss to Cost of sales. Foreign Currency Derivatives. The Company enters into forward and option contracts to manage foreign exchange exposure related to forecasted transactions and assets and liabilities that are subject to risk from foreign currency rate changes. These exposures include: product costs; revenues and expenses; associated receivables and payables; intercompany obligations and receivables and other related cash flows. Forward exchange contracts outstanding at December 31, 2020 and December 31, 2019 had notional contract values of $395.9 million and $332.5 million, respectively. There were no option contracts outstanding at December 31, 2020. Option contracts outstanding at December 31, 2019, had a notional contract value of $17.8 million. The forward and options contracts outstanding at December 31, 2020, mature during 2021 and 2022 and mainly relate to t he Euro, Australian dollar, Canadian dollar and Japanese yen. As of December 31, 2020, the Company estimates that during the next 12 months, it will reclassify approximately $8.2 million of net losses (based on rates as of December 31, 2020) from Accumulated other comprehensive loss to Cost of sales. Interest Rate Derivatives. The Company previously entered into fixed-to-floating interest rate swaps to convert a portion of its long-term debt from fixed to floating rate debt. In the second half of 2019, the Company settled its fixed-to-floating interest rate swaps, resulting in a net deferred gain of $2.5 million included within Debt. The Company will reclassify $0.7 million of net deferred gains from Debt to Interest expense during the next 12 months. As a result, there are no outstanding interest rate swaps as of both December 31, 2020 and December 31, 2019. The Company may also enter into forward-starting interest rate swaps to hedge the interest rate risk associated with anticipated debt issuances. There were no forward-starting interest rate swaps outstanding at December 31, 2020 or December 31, 2019, however the Company had $1.4 million and $2.0 million, respectively, of net deferred losses associated with previously settled forward-starting interest rate swaps which were included in Accumulated other comprehensive loss. As of December 31, 2020, the Company will reclassify approximately $0.6 million of net losses resulting from settled forward-starting interest rate swaps from Accumulated other comprehensive loss to Interest expense during the next 12 months. As of December 31, 2020 and December 31, 2019, the fair values of the Company’s derivative instruments were: (in millions) Derivative Assets Derivative Liabilities Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value 2020 2019 2020 2019 Derivatives Designated as Cash Flow Hedges Foreign exchange contracts Prepaid expenses and other $ 1.3 $ 4.1 Accrued expenses $ 11.3 $ 2.3 Commodity contracts Prepaid expenses and other 0.9 — Accrued expenses — — Total $ 2.2 $ 4.1 $ 11.3 $ 2.3 Other Hedging Activity Foreign exchange contracts Prepaid expenses and other $ 0.0 $ 0.1 Accrued expenses $ 0.7 $ 0.9 The effect of derivative instruments on the Consolidated Statements of Operations for the years ended December 31, 2020 and December 31, 2019 was: (in millions) Derivatives Designated as Cash Flow Hedging Instruments Amount of Gain (Loss) on Derivatives Recognized in Accumulated Other Comprehensive Loss (Effective Portion) Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Earnings (Effective Portion) Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Earnings (Effective Portion) 2020 2019 2020 2019 Interest rate contracts $ — $ — Interest expense $ (0.6) $ (0.6) Foreign exchange contracts (7.3) 5.1 Cost of sales 7.4 10.8 Commodity contracts 0.9 — Cost of sales 0.0 — Total $ (6.4) $ 5.1 $ 6.8 $ 10.2 Derivatives Designated as Fair Value Hedging Instruments Location of Gain (Loss) on Derivatives Amount of Gain (Loss) on Derivatives Recognized in Earnings 2020 2019 Interest rate contracts Interest expense $ 0.7 $ 0.1 Other Hedging Activity Location of Gain (Loss) on Derivatives Amount of Gain (Loss) on Derivatives Recognized in Earnings 2020 2019 Foreign exchange contracts Cost of sales $ (0.8) $ 2.4 Foreign exchange contracts Other expense, net 1.0 (1.3) Total $ 0.2 $ 1.1 Fair Value of Other Financial Instruments. The carrying values of the Company’s short-term financial instruments, including cash and cash equivalents and accounts and notes receivable approximate their fair values because of the short maturity of these instruments. At December 31, 2020 and December 31, 2019, the fair value of the Company’s long-term debt was approximately $1,062.3 million and $1,214.6 million, respectively, and was determined using Level 1 and Level 2 inputs described in Note 7 – Fair Value Measurements , including quoted market prices or discounted cash flows based on quoted market rates for similar types of debt. The carrying value of long-term debt, including current maturities, was $972.1 million and $1,131.6 million as of December 31, 2020 and December 31, 2019, respectively.

Accrued Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2020
Accrued Liabilities, Current [Abstract]
Accrued Expenses	Accrued Expenses Accrued Expenses at December 31, 2020 and 2019 were as follows: (in millions) 2020 2019 Compensation and benefit plans $ 167.8 $ 118.9 Product warranties 115.9 117.6 Sales incentives and discounts 113.6 116.9 Deferred revenue and customer deposits 48.2 38.7 Current operating lease liabilities 19.2 18.4 Legal fees 16.5 15.1 Insurance reserves 15.9 16.3 Real, personal and other non-income taxes 15.5 4.5 Interest 15.3 16.5 Derivatives 12.0 3.2 Environmental reserves 6.9 6.6 Other 31.7 36.9 Total accrued expenses $ 578.5 $ 509.6

Debt

Debt	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Debt Long-term debt at December 31, 2020 and December 31, 2019 consisted of the following: (in millions) 2020 2019 Senior Notes, 6.375%, due 2049, net of debt issuances costs of $7.5 and $7.8 $ 222.5 $ 222.2 Senior Notes, 6.500% due 2048, net of debt issuance costs of $8.0 and $8.2 177.0 176.8 Notes, 7.125% due 2027, net of discount of $0.2 and $0.3 and debt issuance costs of $0.3 and $0.4 162.7 162.5 Term loan, floating rate due 2023, net of debt issuance costs of $0.6 and $1.3 (A) (C) 150.7 305.0 Senior Notes, 6.625%, due 2049, net of debt issuances costs of $4.2 and $4.4 120.8 120.6 Debentures, 7.375% due 2023, net of discount of $0.1 and $0.1 and debt issuance costs of $0.1 and $0.2 (B) 104.6 105.2 Loan with Fond du Lac County Economic Development Corporation, 2.0% due 2021, net of discount of $0.8 and $1.6 and debt issuance costs of $0.0 and $0.0 6.9 11.1 Notes, various up to 5.9% payable through 2028 6.2 5.9 Total long-term debt 951.4 1,109.3 Current maturities of long-term debt (43.1) (41.3) Long-term debt, net of current maturities $ 908.3 $ 1,068.0 (A) Beginning in December 2018, scheduled repayment of the 5-year term loan occurs each March, June, September and December equal to 2.50% of the aggregate principal amount of $350.0 million. The remaining principal amount is due August 2023. (B) Included in Debentures, 7.375% percent due 2023 at December 31, 2020 and December 31, 2019, are the aggregate fair values related to the fixed-to-floating interest rate swaps as discussed in Note 14 – Financial Instruments . (C) As of December 31, 2020 and December 31, 2019, the interest rate was 1.74% and 3.50%, respectively. Debt issuance costs paid for the year ended December 31, 2019 was $8.1 million. Debt issuance costs are reported in net proceeds from issuances of long-term debt within cash flows from financing activities on the Consolidated Statements of Cash Flows. There were no debt issuance costs paid during 2020. Scheduled maturities, net: (in millions) 2021 $ 43.1 2022 36.4 2023 186.3 2024 0.5 2025 2.0 Thereafter 683.1 Total long-term debt including current maturities $ 951.4 Activity Term Loan During 2020, the Company made principal repayments totaling $155.0 million of its 2023 floating rate term loan. The term loan was redeemed at 100 percent of the principal amount plus accrued interest, in accordance with the redemption provisions of the term loan. Senior Notes due 2021 In July 2019, the Company called $150.0 million of its 4.625% senior notes due 2021. The bonds were retired in August 2019 at par plus accrued interest, in accordance with the call provisions of the notes, and the associated interest rate swaps have been terminated. Refer to Note 14 – Financial Instruments for further information on the terminated interest rate swaps. Senior Notes due 2049 In March 2019, the Company issued an aggregate principal amount of $230.0 million of its 6.375% Senior Notes due April 2049 (6.375% Notes) in a public offering, which resulted in aggregate net proceeds to the Company of $222.0 million. Net proceeds from the offering of the 6.375% Notes were used to prepay all of the $150.0 million, 3-year tranche loan due 2021 and for general corporate purposes. Interest on the 6.375% Notes is due quarterly, commencing on April 15, 2019. The Company may, at its option, redeem the 6.375% Notes on or after April 15, 2024, either in whole or in part, at a redemption price equal to 100 percent of the principal amount plus any accrued and unpaid interest. Additionally, in the event of a change in control, the Company may be required to repurchase some or all of its 6.375% Notes at a price equal to 101 percent of the principal amount plus any accrued and unpaid interest. The 6.375% Notes are unsecured and do not contain subsidiary guarantees. Short-term Borrowing Arrangements The Company maintains an Amended and Restated Credit Agreement (Credit Facility). The Credit Facility provides for $400.0 million of borrowing capacity and is in effect through September 2024. The Credit Facility includes provisions to add up to $100.0 million of additional borrowing capacity and extend the facility for two additional one-year terms, subject to lender approval. In November 2019, the Credit Facility was amended to extend the maturity date from September 2023 to September 2024. The Company currently pays a facility fee of 15 basis points per annum. The facility fee per annum will be within a range of 12.5 to 35 basis points based on the Company's credit rating. Under the terms of the Credit Facility, the Company has two borrowing options: borrowing at a rate tied to adjusted LIBOR plus a spread of 110 basis points or a base rate plus a margin of 10.0 basis points. The rates are determined by the Company's credit ratings, with spreads ranging from 100 to 190 basis points for LIBOR rate borrowings and 0 to 90 basis points for base rate borrowings. The Company is required to maintain compliance with two financial covenants included in the Credit Facility: a minimum interest coverage ratio and a maximum leverage ratio. The minimum interest coverage ratio, as defined in the agreement, is not permitted to be less than 3.00 to 1.00. The maximum leverage ratio, as defined in the agreement, is not permitted to be more than 3.50 to 1.00. As of December 31, 2020, the Company was in compliance with the financial covenants in the Credit Facility. On March 23, 2020, the Company delivered a borrowing request to the administrative agent for the Credit Facility to increase the Company’s borrowings to $385.0 million, which was substantially all of the amount available for borrowing under the Credit Facility, net of outstanding letters of credit. The Company borrowed the amount described above under the Credit Facility as a precautionary action in order to increase its cash position and to enhance its liquidity and financial flexibility in response to the COVID-19 pandemic. During 2020 and 2019, gross borrowings under the Credit Facility totaled $610.0 million and $655.0 million, respectively. As of December 31, 2020 and December 31, 2019, there were no borrowings outstanding and available borrowing capacity totaled $395.0 million, net of $5.0 million of letters of credit outstanding under the Credit Facility. The maximum amount utilized under the Credit Facility during the years ended December 31, 2020 and December 31, 2019, including letters of credit outstanding under the Credit Facility were $397.1 million and $258.6 million, respectively. In December 2019, the Company entered into an unsecured commercial paper program (CP Program) pursuant to which the Company, may issue short-term, unsecured commercial paper notes (CP Notes). Amounts available under the CP Program may be borrowed, repaid and re-borrowed from time to time, with the aggregate principal amount of CP Notes outstanding under the CP Program at any time not to exceed the lower of $300.0 million or the available borrowing amount under the Credit Facility. The net proceeds of the issuances of the CP Notes are expected to be used for general corporate purposes. The maturities of the CP Notes will vary but may not exceed 397 days from the date of issue. The CP Notes will be sold under customary terms in the commercial paper market and will be issued at a discount from par or, alternatively, will be issued at par and bear varying interest rates on a fixed or floating basis. During 2020, borrowings under the CP Program totaled $175.0 million, all of which were repaid during the period. During 2020, the maximum amount utilized under the CP Program was $100.0 million. There were no borrowings under the CP program during 2019. Other Debt As provided under the terms of its loan agreement with the Fond du Lac County Economic Development Corporation, which is secured by the Company's property located in Fond du Lac, Wisconsin, up to a maximum 43 percent of the principal due annually can be forgiven if the Company achieves certain employment targets as outlined in the agreement. The amount of loan forgiveness is based on average employment levels at the end of the previous four quarters. Total loan forgiveness for 2020, 2019 and 2018 was $2.1 million or 43 percent of the principal due each year. General Provisions Pursuant to the indenture governing the 6.500% Notes, the 6.625% Notes and the 6.375% Notes, the Company and its restricted subsidiaries are subject to restrictions on the incurrence of debt secured by liens on principal property (as defined in the indenture) or shares of capital stock of such restricted subsidiaries, entering into sale and leaseback transactions in respect of principal property and mergers or consolidations with another entity or sales, transfers or leases of the Company's properties and assets substantially as an entirety to another person. Interest on the Company's 2023 and 2027 notes is due semi-annually. Interest on the Company's 6.500% Notes, 6.625% Notes, 6.375% Notes and the Term Loan is due quarterly. Unless otherwise noted, the Company's debt is unsecured and does not contain subsidiary guarantees. The Company may be required to repurchase some or all of the 6.500% Notes, 6.625% Notes and the 6.375% Notes in the event of a change of control, subject to certain circumstances, for an amount equal to 101 percent of the outstanding principal plus any accrued and unpaid interest.

Postretirement Benefits

Postretirement Benefits	12 Months Ended
	Dec. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Postretirement Benefits	Postretirement Benefits Overview . The Company has defined contribution plans and makes contributions including matching and annual discretionary contributions which are based on various percentages of compensation, and in some instances are based on the amount of the employees' contributions to the plans. The expense related to the defined contribution plans was $49.4 million in 2020, $44.1 million in 2019 and $45.3 million in 2018. The Company's domestic pension and retiree health care and life insurance benefit plans, which are discussed below, provide benefits based on years of service and, for some plans, average compensation prior to retirement. Benefit accruals are frozen for all plan participants. The Company uses a December 31 measurement date for these plans. The Company's foreign postretirement benefit plans are not significant individually or in the aggregate. Plan Developments. The Company historically maintained four qualified defined benefit plans: the Brunswick Pension Plan for Salaried Employees (Salaried Plan), the Brunswick Pension Plan for Hourly Bargaining Unit Employees (Bargaining Plan), the Brunswick Pension Plan For Hourly Employees (Hourly Plan) and the Brunswick Pension Plan For Hourly Wage Employees (Muskegon Plan). During the third quarter of 2018, the Company initiated actions to terminate its two remaining plans, the Salaried Plan and the Bargaining Plan, effective October 31, 2018. All benefits were settled during 2019, either through a lump-sum payment to participants or the purchase of an annuity offering on behalf of the participants. As a result of the planned terminations, the remaining over-funded position for each plan is currently recorded within Accounts and notes receivable in the Consolidated Balance Sheets. The Company had previously completed actions to terminate the Hourly Plan and the Muskegon Plan, effective as of December 31, 2016, and all benefits were paid during 2017 as described below. During 2019, total settlement payments of $673.9 million were made from the Salaried Plan and the Bargaining Plan, consisting of lump-sum pension distributions of $77.1 million and the purchase of group annuity contracts totaling $596.8 million to cover future benefit payments. The annuity contracts unconditionally and irrevocably guarantee the full payment of all future annuity payments to the affected participants. The insurance company assumed all risk associated with the assets and obligations that were transferred. The Company recognized a pretax settlement loss of $292.8 million during the year related to these actions. Costs. Pension and other postretirement benefit costs included the following components for 2020, 2019 and 2018: Pension Benefits Other Postretirement Benefits (in millions) 2020 2019 2018 2020 2019 2018 Interest cost $ 0.7 $ 6.0 $ 22.6 $ 0.8 $ 1.3 $ 1.1 Expected return on plan assets — (7.4) (24.8) — — — Amortization of prior service credits — — — (0.7) (0.7) (0.7) Amortization of net actuarial losses 0.6 5.8 9.9 — — — Settlement charges (1.1) 292.8 — — — — Net pension and other benefit costs $ 0.2 $ 297.2 $ 7.7 $ 0.1 $ 0.6 $ 0.4 Net pension and other benefit costs are recorded in Pension settlement benefit (charge) and Other expense, net in the Consolidated Statements of Operations. Benefit Obligations and Funded Status. A reconciliation of the changes in the benefit obligations and fair value of assets over the two-year period ending December 31, 2020, and a statement of the funded status at December 31 for these years for the Company's pension and other postretirement benefit plans follow: Pension Benefits Other Postretirement Benefits (in millions) 2020 2019 2020 2019 Reconciliation of benefit obligation: Benefit obligation at previous December 31 $ 28.1 $ 652.8 $ 33.0 $ 34.3 Interest cost 0.7 6.0 0.8 1.3 Actuarial losses 2.1 77.3 1.8 0.2 Benefit payments (3.4) (34.1) (2.4) (2.8) Settlement payments — (673.9) — — Benefit obligation at December 31 27.5 28.1 33.2 33.0 Reconciliation of fair value of plan assets: Fair value of plan assets at previous December 31 10.6 642.0 — — Actual return on plan assets — 70.8 — — Employer contributions 3.4 7.9 2.4 2.8 Benefit payments (3.4) (34.1) (2.4) (2.8) Settlement payments — (673.9) — — Adjustments (A) (10.6) (2.1) — — Fair value of plan assets at December 31 — 10.6 — — Funded status at December 31 $ (27.5) $ (17.5) $ (33.2) $ (33.0) Funded percentage NA 38 % NA NA (A) 2020 adjustment represents the overfunded position of the Company's salaried bargaining plans refunded during the year. The funded status of these pension plans includes the projected and accumulated benefit obligations for the Company's nonqualified pension plan of $27.5 million and $28.1 million at December 31, 2020 and 2019, respectively. The Company's nonqualified pension plan and other postretirement benefit plans are not funded. The projected benefit obligation, net of plan assets for the Company's foreign pension plans, was $17.1 million and $17.5 million as of December 31, 2020 and 2019, respectively. The amounts included in the Company's Consolidated Balance Sheets as of December 31, 2020 and 2019, were as follows: Pension Benefits Other Postretirement Benefits (in millions) 2020 2019 2020 2019 Prepaid expenses and other $ — $ — $ — $ — Accounts and notes receivable — 10.6 — — Assets recognized $ — $ 10.6 $ — $ — Accrued expenses $ 3.0 $ 3.5 $ 3.1 $ 3.6 Postretirement benefit liabilities 24.5 24.6 30.1 29.4 Liabilities recognized $ 27.5 $ 28.1 $ 33.2 $ 33.0 Accumulated Other Comprehensive Loss. The following pretax activity related to pensions and other postretirement benefits was recorded in Accumulated other comprehensive loss as of December 31: Pension Benefits Other Postretirement Benefits (in millions) 2020 2019 2020 2019 Prior service credits Beginning balance $ — $ — $ (8.1) $ (8.8) Amount recognized as component of net benefit costs — — 0.7 0.7 Ending balance — — (7.4) (8.1) Net actuarial losses Beginning balance 12.0 298.3 (1.4) (1.5) Actuarial losses arising during the period 2.1 12.3 1.8 0.1 Amount recognized as component of net benefit costs (0.6) (298.6) — — Ending balance 13.5 12.0 0.4 (1.4) Total $ 13.5 $ 12.0 $ (7.0) $ (9.5) Prior service credits associated with other postretirement benefits are being amortized on a straight-line basis over the average future working lifetime to full eligibility for active hourly plan participants and over the average remaining life expectancy for those plans' participants who are fully eligible for benefits. Actuarial gains and losses in excess of 10 percent of the greater of the benefit obligation or the market value of assets are amortized over the remaining service period of active plan participants and over the average remaining life expectancy of inactive plan participants. Other Postretirement Benefits . Once participants eligible for other postretirement benefits turn 65 years old, the health care benefits become a flat dollar amount based on age and years of service. The assumed health care cost trend rate for other postretirement benefits for pre-age 65 benefits as of December 31 was as follows: Pre-age 65 Benefits 2020 2019 Health care cost trend rate for next year 5.3 % 5.4 % Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) 4.5 % 4.5 % Year rate reaches the ultimate trend rate 2037 2037 A one percent change in the assumed health care trend rate at December 31, 2020 would not have a material impact on the accumulated postretirement benefit obligation. The Company monitors the cost of health care and life insurance benefit plans and reserves the right to make additional changes or terminate these benefits in the future. Assumptions. Weighted average assumptions used to determine pension and other postretirement benefit obligations at December 31 were as follows: Pension Benefits Other Postretirement Benefits 2020 2019 2020 2019 Discount rate 2.00 % 2.96 % 2.13 % 3.07 % Weighted average assumptions used to determine net pension and other postretirement benefit costs for the years ended December 31 were as follows: 2020 2019 2018 Discount rate for pension benefits (A) (B) 2.55% 4.13% 3.27% Discount rate for other postretirement benefits (A) (B) 2.65% 3.85% 3.08% Long-term rate of return on plan assets (C) NA NA 4.25% (A) The Company utilizes a yield curve analysis to calculate the discount rates used to determine pension and other postretirement benefit obligations. The yield curve analysis matches the cash flows of the Company's benefit obligations. The yield curve consisted of spot interest rates at half year increments for each of the next 30 years and was developed based on pricing and yield information for high quality corporate bonds rated Aa by either Moody's or Standard & Poor's, private placement bonds that are traded in reliance with Rule 144A and are at least two years from date of issuance, bonds with make-whole provisions and bonds issued by foreign corporations that are denominated in U.S. dollars, excluding callable bonds and bonds less than a minimum size and other filtering criteria. Additionally, the Company's yield curve methodology includes bonds having a yield that is greater than the regression mean yield curve as the Company believes this methodology represents an appropriate estimate of the rates at which the Company could effectively settle its pension obligations. For the Company's Salaried and Bargaining plans which were terminated during 2018, the discount rate was a blend of the December 31, 2018 yield curve rate associated with those participants electing annuity contracts to cover future benefit payments, and a lump-sum segment rate for those participants electing lump-sum benefit payments. (B) The Company uses a "spot rate approach" in the calculation of pension and postretirement interest costs to provide a more accurate measurement of interest costs. The spot rate approach applies separate discount rates for each projected benefit payment in the calculation of pension and postretirement interest costs. (C) The Company evaluates its assumption regarding the estimated long-term rate of return on plan assets based on historical experience, future expectations of investment returns, asset allocations, investment strategies and views of investment professionals. Master Trust Investments. Assets of the Company's Master Pension Trust (Trust) are invested solely in the interest of the plan participants for the purpose of providing benefits to participants and their beneficiaries. During 2019, all assets of the Trust were distributed to participants in connection with the plan terminations. Expected Cash Flows. The expected cash flows for the Company's pension and other postretirement benefit plan are presented as follows: (in millions) Pension Benefits Other Postretirement Benefits Company contributions expected to be made in 2021 $ 3.0 $ 3.1 Expected benefit payments: 2021 3.0 3.1 2022 2.8 3.0 2023 2.7 2.8 2024 2.3 2.6 2025 2.2 2.5 2026-2030 9.0 10.3

Stock Plans and Management Comp

Stock Plans and Management Compensation	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock Plans and Management Compensation	Stock Plans and Management Compensation Under the Brunswick Corporation 2014 Stock Incentive Plan, the Company may grant stock appreciation rights (SARs), non-vested stock units, and performance awards to executives, other employees and non-employee directors, with shares from treasury shares and from authorized, but unissued, shares of common stock initially available for grant, in addition to: (i) the forfeiture of past awards; (ii) shares not issued upon the net settlement of SARs; or (iii) shares delivered to or withheld by the Company to pay the withholding taxes related to awards. As of December 31, 2020, 4.9 million shares remained available for grant. Share grant amounts, fair values, and fair value assumptions reflect all outstanding awards for both continuing and discontinued operations. Non-Vested Stock Units The Company grants both stock-settled and cash-settled non-vested stock units to key employees as determined by management and the Human Resources and Compensation Committee of the Board of Directors. Non-vested stock units have vesting periods of three years. Non-vested stock units are eligible for dividends, which are reinvested, and are non-voting. All non-vested units have restrictions on the sale or transfer of such awards during the vesting period. Generally, grants of non-vested stock units are forfeited if employment is terminated prior to vesting. Non-vested stock units vest pro rata over one year if (i) the grantee has attained the age of 62, or (ii) the grantee's age plus total years of service equals 70 or more. The Company recognizes the cost of non-vested stock units on a straight-line basis over the requisite service period. Additionally, cash-settled non-vested stock units are recorded as a liability on the balance sheet and adjusted to fair value each reporting period through stock compensation expense. During the years ended December 31, 2020, 2019 and 2018, the Company charged $13.3 million, $10.9 million and $11.1 million, respectively, to compensation expense for non-vested stock units. The related income tax benefit recognized in 2020, 2019 and 2018 was $3.3 million, $2.7 million and $2.8 million, respectively. The fair value of shares vested during 2020, 2019 and 2018 was $6.6 million, $19.2 million and $4.4 million respectively. The weighted average price per Non-vested stock unit at grant date was $64.13, $49.12 and $59.05 for units granted in 2020, 2019 and 2018, respectively. Non-vested stock unit activity for the year ended December 31, 2020 was as follows: (in thousands, except grant date fair value) Non-vested Stock Unit Activity Weighted Average Grant Date Fair Non-vested units, unvested at January 1, 2020 444 53.42 Awarded 272 64.13 Forfeited (58) 57.72 Vested (87) 58.58 Non-vested units, unvested at December 31, 2020 571 57.31 As of December 31, 2020, there was $11.0 million of total unrecognized compensation cost related to non-vested share-based compensation arrangements. The Company expects this expense to be recognized over a weighted average period of 1.4 years. SARs Between 2005 and 2012, the Company issued stock-settled SARs. Generally, SARs are exercisable over a period of 10 years, or as otherwise determined by management and the Human Resources and Compensation Committee of the Board of Directors, and subject to vesting periods of generally 4 years. However, with respect to SARs, all grants vest immediately: (i) in the event of a change in control; (ii) upon death or disability of the grantee; or (iii) with respect to awards granted prior to 2008, upon the sale or divestiture of the business unit to which the grantee is assigned. In addition, grantees continue to vest in accordance with the vesting schedule even upon termination if (i) the grantee has attained the age of 62, or (ii) the grantee's age plus total years of service equals 70 or more. An additional provision applies that prorates the grant in the event of termination prior to the first anniversary of the date of grant, provided the participant had met the appropriate retirement age definition of rule of 70 or age 62. SARs activity for all plans for the years ended December 31, 2020, 2019 and 2018, was as follows: 2020 2019 2018 (in thousands, except exercise price and terms) Weighted Weighted Aggregate Intrinsic Value Weighted Aggregate Intrinsic Value Aggregate Intrinsic Value Outstanding on January 1 119 $ 21.57 343 $ 16.04 594 $ 14.40 Exercised (97) $ 21.16 $ 5,353 (224) $ 13.13 $ 10,494 (248) $ 12.10 $ 12,636 Forfeited — $ 11.08 0 $ 5.86 (3) $ 17.06 Outstanding on December 31 22 $ 23.41 1.1 years $ 6,276 119 $ 21.57 $ 4,571 343 $ 16.04 $ 10,439 Exercisable and Vested on December 31 22 $ 23.41 1.1 years $ 6,276 119 $ 21.57 $ 4,571 343 $ 16.04 $ 10,439 The following table summarizes information about SARs outstanding as of December 31, 2020: Outstanding and Exercisable Exercise Price Number (in thousands) Weighted $14.68 0.6 0.7 years $21.52 1.4 0.1 years $23.79 19.7 1.1 years SARs expense was immaterial for all periods presented. Performance Awards In February 2020, 2019 and 2018, the Company granted performance shares to certain senior executives. Performance share awards are based on three performance measures: a cash flow return on investment (CFROI) measure, an operating margin (OM) measure and a total shareholder return (TSR) modifier. Performance shares are earned based on a three-year performance period commencing at the beginning of the calendar year of each grant. The performance shares earned are then subject to a TSR modifier based on stock returns measured against stock returns of a predefined comparator group over a three-year performance period. Additionally, in February 2020, 2019 and 2018, the Company granted 26,750, 24,605 and 24,490 performance shares, respectively, to certain officers and certain senior managers based on the respective measures and performance periods described above but excluding a TSR modifier. The fair values of the senior executives' performance share award grants with a TSR modifier at the grant date in 2020, 2019 and 2018 were $64.72, $49.64 and $61.59, respectively, which were estimated using the Monte Carlo valuation model, and incorporated the following assumptions: 2020 2019 2018 Risk-free interest rate 1.4 % 2.9 % 2.4 % Dividend yield 1.5 % 1.7 % 1.3 % Volatility factor 46.6 % 41.0 % 38.9 % Expected life of award 2.9 years 2.9 years 2.9 years The fair value of certain officers' and certain senior managers' performance awards granted based solely on the CFROI and OM performance factors was $61.91, $47.61 and $57.19, which was equal to the stock price on the date of grant in 2020, 2019 and 2018, respectively, less the present value of dividend payments over the vesting period. The Company recorded compensation expense related to performance awards of $13.8 million, $6.4 million and $5.6 million in 2020, 2019 and 2018, respectively. The related income tax benefit recognized in 2020, 2019 and 2018 was $3.4 million, $1.6 million and $1.4 million, respectively. The fair value of awards vested during 2020, 2019 and 2018 was $3.4 million, $4.9 million and $7.8 million, respectively. Performance award activity for the year ended December 31, 2020 was as follows: (in thousands, except grant date fair value) Performance Awards Weighted Average Grant Date Fair Value ($) Performance awards, unvested at January 1 88 53.55 Awarded 116 63.13 Forfeited (37) 57.71 Vested and earned 45 42.34 Performance awards, unvested at December 31 212 55.71 As of December 31, 2020, the Company had $4.0 million of total unrecognized compensation expense related to performance awards. The Company expects this expense to be recognized over a weighted average period of 1.5 years. Excess Tax Benefits/Shortfalls For tax purposes, share-based compensation expense is deductible in the year of exercise or release based on the intrinsic value of the award on the date of exercise or release. For financial reporting purposes, share-based compensation expense is based upon grant-date fair value, which is amortized over the vesting period. Excess or "windfall" tax benefits represent the excess tax deduction received by the Company resulting from the difference between the share-based compensation expense deductible for tax purposes and the share-based compensation expense recognized for financial reporting purposes. Conversely, the Company may recognize a tax "shortfall" in circumstances when share-based expense recognized for reporting purposes exceeds the expense deductible for tax purposes. Windfall tax benefits and shortfalls are recorded directly to Income tax provision on the Company's Consolidated Statement of Operations. Windfall tax benefits for the years ended December 31, 2020, 2019 and 2018 were $1.1 million, $2.8 million and $3.1 million, respectively. Director Awards The Company issues stock awards to non-employee directors in accordance with the terms and conditions determined by the Nominating and Corporate Governance Committee of the Board of Directors. A portion of each director’s annual fee is paid in Brunswick common stock, the receipt of which may be deferred until a director retires from the Board of Directors. Each director may elect to have the remaining portion paid in cash, in Brunswick common stock distributed at the time of the award, or in deferred Brunswick common stock units with a 20 percent premium.

Comprehensive Income

Comprehensive Income	12 Months Ended
	Dec. 31, 2020
Comprehensive Income [Abstract]
Comprehensive Income	Comprehensive Income (Loss) The following table presents reclassification adjustments out of Accumulated other comprehensive loss during the years ended December 31, 2020, 2019 and 2018: (in millions) Details about Accumulated other comprehensive loss components 2020 2019 2018 Affected line item in the statement where net income is presented Amount of loss reclassified into earnings from foreign currency: Foreign currency cumulative translation adjustment $ — $ (13.9) $ — Net (loss) earnings from discontinued operations, net of tax — (13.9) — Net (loss) earnings from discontinued operations, net of tax — 0.1 — Net (loss) earnings from discontinued operations, net of tax $ — $ (13.8) $ — Net (loss) earnings from discontinued operations, net of tax Amortization of defined benefit items: Prior service credits $ 0.7 $ 0.7 $ 0.7 Other expense, net (A) Net actuarial losses (1.1) (6.2) (10.3) Other expense, net (A) Net actuarial losses — (292.8) — Pension settlement benefit (charge) (A) (B) (0.4) (298.3) (9.6) Earnings before income taxes 0.1 (15.0) 2.2 Income tax provision (B) $ (0.3) $ (313.3) $ (7.4) Net earnings from continuing operations (B) Amount of gain (loss) reclassified into earnings on derivative contracts: Interest rate contracts $ (0.6) $ (0.6) $ (0.9) Interest expense Foreign exchange contracts 7.4 10.8 (2.5) Cost of sales Commodity Contracts 0.0 — — Cost of sales 6.8 10.2 (3.4) Earnings before income taxes (1.8) (3.0) 0.8 Income tax provision $ 5.0 $ 7.2 $ (2.6) Net earnings from continuing operations (A) These Accumulated other comprehensive loss components are included in the computation of net pension and other benefit costs. See Note 17 – Postretirement Benefits for additional details. (B) In 2019, the Company fully exited its qualified benefit pension plans and as a result, recorded a pre-tax settlement charge of $292.8 million. The income tax impact of the settlement action was a net provision of $17.5 million, consisting of an income tax benefit of $73.9 million associated with the pension settlement charge netted against an income tax charge of $91.4 million resulting from the release of disproportionate tax effects in Accumulated other comprehensive loss. Refer to Note 17 – Postretirement Benefits and Note 12 – Income Taxes in the Notes to Consolidated Financial Statements for further information on the pension settlement and related income tax consequences, respectively.

Treasury Stock

Treasury Stock	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Treasury Stock	Treasury Stock The Company has executed share repurchases against authorizations approved by the Board of Directors in 2016 and 2019. In 2020, the Company rep urchased $118.3 million of stock under these authorizations and as of December 31, 2020, the remaining authorization was $116.5 million. Treasury stock activity for the years ended December 31, 2020, 2019 and 2018, was as follows: (Shares in thousands) 2020 2019 2018 Balance at January 1 22,969 15,781 15,001 Compensation plans and other (263) (542) (460) Share repurchases 1,957 7,730 1,240 Balance at December 31 24,663 22,969 15,781

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Lessee, Operating Leases [Text Block]	Note 21 – Leases The Company has operating lease agreements for offices, branches, factories, distribution and service facilities and certain personal property. Leases with an initial lease term of 12 months or less are not recorded on the balance sheet. Finance leases are not material to the Company's consolidated financial statements. The Company determines if an arrangement is a lease at lease inception. Operating lease assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company's lease contracts do not include an implicit rate, the Company uses its incremental borrowing rate based on information available at commencement date in determining the present value of future payments. The incremental borrowing rate is estimated to approximate the interest rate on a collateralized basis with similar terms and payments, and in economic environments where the leased asset is located. The operating lease asset also includes any initial direct costs and lease payments made prior to lease commencement and excludes lease incentives incurred. Several leases include one or more options to renew, with renewal terms that can extend the lease term from one to five years or more. The exercise of lease renewal options is at our sole discretion. The Company's lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Certain of our lease agreements include rental payments that vary based on changes in volume activity, storage activity, or changes in the Consumer Price Index or other indices. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. Operating lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. The Company has certain lease agreements that contain both lease and non-lease components, which it has elected to account for as a single lease component for all asset classes. A summary of the Company's lease assets and lease liabilities as of December 31, 2020 and December 31, 2019 is as follows: (in millions) Classification Dec 31, 2020 Dec 31, 2019 Lease Assets Operating lease assets Operating lease assets $ 83.0 $ 83.2 Lease Liabilities Current operating lease liabilities Accrued expenses 19.2 18.4 Non-current operating lease liabilities Operating lease liabilities 69.8 70.1 Total lease liabilities $ 89.0 $ 88.5 A summary of the Company's total lease cost for the years ended December 31, 2020 and December 31, 2019 is as follows: (in millions) Classification Dec 31, 2020 Dec 31, 2019 Operating lease cost Selling, general, and administrative expense $ 13.2 $ 13.9 Cost of sales 24.9 25.6 Variable lease cost Selling, general, and administrative expense 1.1 0.5 Cost of sales 4.8 4.4 Total lease cost (A) $ 44.0 $ 44.4 (A) Includes total short-term lease cost which is immaterial. Total lease cost was $33.6 million for the year ended December 31, 2018. The Company's maturity analysis of its operating lease liabilities as of December 31, 2020 is as follows: (in millions) 2021 $ 24.4 2022 22.0 2023 19.0 2024 15.7 2025 8.8 Thereafter 9.9 Total lease payments 99.8 Less: Interest (10.8) Present value of lease liabilities $ 89.0 The total weighted-average discount rate and remaining lease term for the Company's operating leases was 5.05 percent and 4.9 years, respectively, as of December 31, 2020. Total operating lease payments reflected in operating cash flows were $22.7 million for the year ended December 31, 2020.

Quarterly Data (unaudited)

Quarterly Data (unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Data (unaudited)	Quarterly Data (unaudited) The Company maintains its financial records on the basis of a fiscal year ended on December 31, with the fiscal quarters spanning approximately thirteen weeks. The first quarter ends on the Saturday closest to the end of the first thirteen-week period. The second and third quarters are thirteen weeks in duration and the fourth quarter is the remainder of the year. The first three quarters of fiscal year 2020 ended on March 28, 2020, June 27, 2020, and September 26, 2020, and the first three quarters of fiscal year 2019 ended on March 30, 2019, June 29, 2019, and September 28, 2019. Quarter Ended (in millions, except per share data) March 28, June 27, September 26, December 31, Year Ended December 31, 2020 Net sales $ 965.5 $ 987.8 $ 1,233.1 $ 1,161.1 $ 4,347.5 Gross margin 243.8 256.0 376.9 336.3 1,213.0 Restructuring, exit and impairment charges (C) 0.4 2.1 1.8 (0.2) 4.1 Pension settlement benefit (charge) (D) — 1.3 (0.2) — 1.1 Net earnings from continuing operations (E) 70.7 71.2 136.8 96.0 374.7 Net (loss) earnings from discontinued operations, net of tax (1.7) (0.5) 1.1 (0.9) (2.0) Net earnings 69.0 70.7 137.9 95.1 372.7 Basic earnings (loss) per common share: Net earnings from continuing operations $ 0.88 $ 0.89 $ 1.72 $ 1.22 $ 4.73 Net (loss) earnings from discontinued operations (0.02) (0.00) 0.02 (0.01) (0.03) Net earnings $ 0.86 $ 0.89 $ 1.74 $ 1.21 $ 4.70 Diluted earnings (loss) per common share: Net earnings from continuing operations $ 0.88 $ 0.89 $ 1.71 $ 1.22 $ 4.70 Net (loss) earnings from discontinued operations (0.02) (0.00) 0.02 (0.02) (0.02) Net earnings $ 0.86 $ 0.89 $ 1.73 $ 1.20 $ 4.68 Dividends declared $ 0.24 $ 0.24 $ 0.24 $ 0.27 $ 0.99 Common stock price (NYSE symbol: BC): High $ 66.32 $ 67.39 $ 73.99 $ 84.00 $ 84.00 Low $ 25.22 $ 25.61 $ 56.50 $ 58.74 $ 25.22 Quarter Ended (in millions, except per share data) March 30, June 29, September 28, December 31, Year Ended December 31, 2019 Net sales (A) $ 1,050.7 $ 1,163.5 $ 976.6 $ 917.6 $ 4,108.4 Gross margin (B) 279.5 328.0 276.9 236.6 1,121.0 Restructuring, exit and impairment charges (C) 3.2 5.4 7.4 2.8 18.8 Pension settlement (charge) benefit (D) — — (294.1) 1.3 (292.8) Net earnings (loss) from continuing operations (E) 76.2 112.1 (232.9) 75.0 30.4 Net loss from discontinued operations, net of tax (112.5) (34.6) (6.4) (7.9) (161.4) Net (loss) earnings (36.3) 77.5 (239.3) 67.1 (131.0) Basic earnings (loss) per common share: Net earnings (loss) from continuing operations $ 0.87 $ 1.29 $ (2.74) $ 0.92 $ 0.36 Net loss from discontinued operations (1.29) (0.40) (0.08) (0.10) (1.90) Net (loss) earnings $ (0.42) $ 0.89 $ (2.82) $ 0.82 $ (1.54) Diluted earnings (loss) per common share: Net earnings (loss) from continuing operations $ 0.87 $ 1.28 $ (2.74) $ 0.92 $ 0.36 Net loss from discontinued operations (1.29) (0.39) (0.08) (0.10) (1.89) Net (loss) earnings $ (0.42) $ 0.89 $ (2.82) $ 0.82 $ (1.53) Dividends declared $ 0.21 $ 0.21 $ 0.21 $ 0.24 $ 0.87 Common stock price (NYSE symbol: BC): High $ 55.35 $ 54.76 $ 54.75 $ 62.23 $ 62.23 Low $ 44.89 $ 41.02 $ 42.57 $ 49.36 $ 41.02 (A) In the second quarter of 2018, the Company announced its intention to wind down Sport Yacht & Yachts (SYY) operations. During the second quarter and the full-year of 2019, SYY had Net sales of $(0.7) million. (B) Gross margin is defined as Net sales less Cost of sales (COS) as presented in the Consolidated Statements of Operations. During the second and fourth quarter and the full-year of 2019, the Company recorded $3.2 million, $3.9 million and $7.1 million in COS, respectively, related to SYY. (C) Restructuring, exit, integration and impairment charges are discussed in Note 4 – Restructuring, Exit and Impairment Activities. (D) Pension settlement charges are discussed in Note 17 – Postretirement Benefits (E ) During the first, second, third and fourth quarter and full-year of 2020, Net earnings (loss) from continuing operations inclu des $6.9 million, $7.0 million, $6.5 million, $7.2 million and $27.6 million, res pectively, related to purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Net earnings (loss) from continuing operations also includes $(0.3) million, $0.4 million, $(0.7) million, $0.9 million and $0.3 million related to discrete tax items. During the first, second, third and fourth quarter and full-year ended 2019, Net earnings (loss) from continuing operations includ es $5.7 million, $9.0 million, $6.1 million, $8.2 million and $29.0 million, respec tively, related to SYY, purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Refer to Note 5 – Acquisitions for further details. Net earnings (loss) from continuing operations also includes $(1.7) million, $1.8 million, $(2.5) million, $(14.8) million and $(17.2) million related to discrete tax items. In the third quarter and full-year of 2019, the Company had a loss of extinguishment of debt, net of tax, of $0.8 million.	[1],[2]
[1]	(B) Gross margin is defined as Net sales less Cost of sales (COS) as presented in the Consolidated Statements of Operations. During the second and fourth quarter and the full-year of 2019, the Company recorded $3.2 million, $3.9 million and $7.1 million in COS, respectively, related to SYY.
[2]	(A) In the second quarter of 2018, the Company announced its intention to wind down Sport Yacht & Yachts (SYY) operations. During the second quarter and the full-year of 2019, SYY had Net sales of $(0.7) million.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule II	(in millions) Allowances for Losses on Receivables Balance at Write-offs Recoveries Acquisitions Other Balance at End of Year 2020 $ 8.5 $ 3.3 $ (1.6) $ 0.1 $ — $ 0.4 $ 10.7 2019 8.7 1.6 (1.7) 0.2 — (0.3) 8.5 2018 7.2 0.8 (0.9) 0.1 1.1 0.4 8.7 Deferred Tax Asset Valuation Allowance Balance at Charges to Profit and Loss (A) Write-offs Recoveries Other (B) Balance at End of Year 2020 $ 93.3 $ (0.2) $ — $ — $ 0.3 $ 93.4 2019 74.7 (3.5) — — 22.1 93.3 2018 78.0 4.0 — — (7.3) 74.7 (A) For the year ended December 31, 2020, the deferred tax asset valuation benefit activity primarily relates to reassessments for state purposes and to certain federal tax credits. For the year ended December 31, 2019, the deferred tax asset valuation benefit activity primarily relates to reassessments for state recognition purposes. For the year ended December 31, 2018, the deferred tax asset valuation provision activity primarily relates to tax losses in foreign jurisdictions. (B) For the year ended December 31, 2020, the activity primarily relates to foreign currency translation. For the year ended December 31, 2019, the activity primarily relates to Federal and State impact of the sale of the stock of certain entities. For the year ended December 31, 2018, activity primarily relates to Federal tax law changes and foreign currency translation.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation. Brunswick Corporation (Brunswick or the Company) has prepared its consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Effective January 1, 2020, the Company changed its management reporting and updated its reportable segments to Propulsion, Parts and Accessories (P&A) and Boat (inclusive of Business Acceleration) to align with its strategy. As a result of this change, the Company has recast all segment information for all prior periods presented. Refer to Note 6 – Segment Information for further information on the Company's reportable segments. Additionally, as stated in Note 3 – Discontinued Operations
Principles of Consolidation	Principles of Consolidation. Brunswick's consolidated financial statements include the accounts of all majority owned and controlled domestic and foreign subsidiaries. Intercompany balances and transactions have been eliminated.
Use of Estimates	Use of Estimates. The preparation of the consolidated financial statements in accordance with accounting principles generally accepted in the United States (GAAP) requires management to make certain estimates. Actual results could differ materially from those estimates. These estimates affect: • The reported amounts of revenues and expenses during the reporting periods; • The reported amounts of assets and liabilities at the date of the financial statements; and • The disclosure of contingent assets and liabilities at the date of the financial statements. Estimates in these consolidated financial statements include, but are not limited to: • Allowances for doubtful accounts; • Inventory valuation reserves; • Variable consideration related to recorded revenue; • Reserves related to repurchase and recourse obligations; • Warranty related reserves; • Losses on litigation and other contingencies; • Environmental reserves; • Insurance reserves; • Valuation of goodwill and other intangible assets; • Impairments of long-lived assets; • Reserves related to restructuring, exit and impairment activities; • Postretirement benefit liabilities; • Valuation allowances on deferred tax assets; and • Income tax reserves.
Cash and Cash Equivalents	Cash and Cash Equivalents. The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. These investments include, but are not limited to, investments in money market funds, bank deposits, federal government and agency debt securities and commercial paper.
Restricted Cash	Restricted Cash. Restricted Cash is primarily related to cash deposited in a trust that is pledged as collateral against certain workers' compensation-related obligations. Refer to Note 13 – Commitments and Contingencies for more information.
Accounts and Notes Receivable and Allowance for Doubtful Accounts	Accounts and Notes Receivable and Allowance for Doubtful Accounts. The Company carries its accounts and notes receivable at their face amounts less an allowance for doubtful accounts. On a regular basis, the Company records an allowance for uncollectible receivables based upon known bad debt risks and past loss history, customer payment practices and economic conditions. Actual collection experience may differ from the current estimate of net receivables. A change to the allowance for doubtful accounts may be required if a future event or other change in circumstances results in a change in the estimate of the ultimate collectability of a specific account.
Inventories	Inventories. Inventories are valued at the lower of cost or net realizable value, with net realizable value equal to the estimated selling price less the estimated costs to transact. Approximately 50 percent and 45 percent of the Company's inventories were determined by the first-in, first-out method (FIFO) at December 31, 2020 and December 31, 2019, respectively. Remaining inventories valued at the last-in, first-out method (LIFO) were $145.3 million and $139.9 million lower than the FIFO cost of inventories at December 31, 2020 and 2019, respectively. Inventory cost includes material, labor and manufacturing overhead. During 2020, a reduction in inventory quantities resulted in a liquidation of applicable LIFO inventory quantities carried at lower costs in prior years. This LIFO liquidation resulted in a decrease in cost of sales of approximately $7 million. There were no liquidations of LIFO inventory layers in 2019 or 2018.
Property	Property. Property, including major improvements and product tooling costs, is recorded at cost. Product tooling costs principally comprise the cost to acquire and construct various long-lived molds, dies and other tooling the Company uses in its manufacturing processes. Design and prototype development costs associated with product tooling are expensed as incurred. Maintenance and repair costs are also expensed as incurred. Depreciation is recorded over the estimated service lives of the related assets, principally using the straight-line method. Buildings and improvements are depreciated over a useful life of five to forty years. Equipment is depreciated over a useful life of two to twenty years. Product tooling costs are amortized over the shorter of the useful life of the tooling or the anticipated life of the applicable product, for a period up to eight years. The Company capitalizes interest on qualifying assets during the construction period and capitalized $4.4 million and $5.0 million in the periods ending December 31, 2020 and 2019, respectively. The Company presents capital expenditures on a cash basis within the Consolidated Statements of Cash Flows. There were $31.7 million and $27.5 million of unpaid capital expenditures within Accounts payable as of December 31, 2020 and 2019, respectively. The Company includes gains and losses recognized on the sale and disposal of property in either Selling, general and administrative expenses or Restructuring, exit and impairment charges as appropriate. The amount of gains and losses for the years ended December 31 were as follows: (in millions) 2020 2019 2018 Gains on the sale of property $ 0.7 $ 1.8 $ 0.3 Losses on the sale and disposal of property (0.5) (2.4) (0.8) Net gains (losses) on sale and disposal of property $ 0.2 $ (0.6) $ (0.5) At both December 31, 2020 and 2019, the Company had $3.0 million of net assets classified as held-for-sale within Net property in the Consolidated Balance Sheets.
Software Development Costs	Software Development Costs for Internal Use. The Company expenses all software development and implementation costs incurred until the Company has determined that the software will result in probable future economic benefit and management has committed to funding the project. Once this is determined, external direct costs of material and services, payroll-related costs of employees working on the project and related interest costs incurred during the application development stage are capitalized. These capitalized costs are amortized over three to seven years. All other related costs, including training costs and costs to re-engineer business processes, are expensed as incurred.
Goodwill and Other Intangibles	Goodwill. Goodwill results from the excess of purchase price over the net assets of businesses acquired. The Company reviews goodwill for impairment annually and whenever events or changes in circumstances indicate that the fair value of a reporting unit may be below its carrying value. As part of the annual test, the Company may perform a qualitative, rather than quantitative, assessment to determine whether the fair values of its reporting units are "more likely than not" to be greater than their carrying values. In performing this qualitative analysis, the Company considers various factors, including the effect of market or industry changes and the reporting units' actual results compared to projected results. If the fair value of a reporting unit does not meet the "more likely than not" criteria discussed above, the Company performs a quantitative assessment which begins by measuring the fair value of the reporting unit. If the carrying value of the reporting unit exceeds its fair value, a goodwill impairment is recorded equal to the carrying value of the reporting unit less its fair value, not to exceed the carrying value of goodwill. The Company calculates the fair value of its reporting units considering both the income approach and the guideline public company method. The income approach calculates the fair value of the reporting unit using a discounted cash flow approach utilizing a Gordon Growth model. Internally forecasted future cash flows, which the Company believes reasonably approximate market participant assumptions, are discounted using a weighted average cost of capital (Discount Rate) developed for each reporting unit. The Discount Rate is developed using market observable inputs, as well as considering whether or not there is a measure of risk related to the specific reporting unit’s forecasted performance. Fair value under the guideline public company method is determined for each unit by applying market multiples for comparable public companies to the unit’s current and forecasted financial results. The key uncertainties in these calculations are the assumptions used in determining the reporting unit’s forecasted future performance, including revenue growth and operating margins, as well as the perceived risk associated with those forecasts in determining the Discount Rate, along with selecting representative market multiples. The Company did not record any goodwill impairments in 2020, 2019 or 2018 in continuing operations. Refer to Note 3 – Discontinued Operations for further information on the Fitness goodwill impairment recorded during 2019. Other intangible assets. The Company's primary intangible assets are customer relationships and trade names acquired in business combinations. Intangible assets are initially valued using a methodology commensurate with the intended use of the asset. The customer relationships were valued using the income approach, specifically the multi-period excess earnings method (MPEEM). The fair value of trade names is measured using a relief-from-royalty (RFR) approach, which assumes the value of the trade name is the discounted amount of cash flows that would be paid to third parties had the Company not owned the trade name and instead licensed the trade name from another company. Higher royalty rates are assigned to premium brands within the marketplace based on name recognition and profitability, while other brands receive lower royalty rates. The basis for future sales projections for both the RFR and MPEEM are based on internal revenue forecasts by brand, which the Company believes represent reasonable market participant assumptions. The future cash flows are discounted using an applicable discount rate as well as any potential risk premium to reflect the inherent risk of holding a standalone intangible asset. The key uncertainties in the RFR and MPEEM calculations, as applicable, are: the selection of an appropriate royalty rate, assumptions used in developing internal revenue growth and expense forecasts, assumed customer attrition rates, as well as the perceived risk associated with those forecasts in determining the discount rate and risk premium. The costs of amortizable intangible assets are recognized over their expected useful lives, typically between three and fifteen years, using the straight-line method. Intangible assets that are subject to amortization are evaluated for impairment using a process similar to that used to evaluate long-lived assets described below. Intangible assets not subject to amortization are assessed for impairment at least annually and whenever events or changes in circumstances indicate that it is more likely than not that an asset may be impaired. As we determined the COVID-19 pandemic was a triggering event, we performed an interim impairment test of certain intangible assets as of March 28, 2020 in addition to our annual impairment test during the fourth quarter. The impairment test for indefinite-lived intangible assets consists of a comparison of the fair value of the intangible asset with its carrying amount. An impairment loss is recognized for the amount by which the carrying value exceeds the fair value of the asset. The Company did not record any intangible asset impairments in 2020, 2019 or 2018. Refer to Note 5 – Acquisitions and Note 11 – Goodwill and Other Intangibles in the Notes to Consolidated Financial Statements for more information.
Equity Investments	Equity Investments. For investments in which the Company owns or controls from 20 percent to 50 percent of the voting shares, the Company uses the equity method of accounting. The Company's share of net earnings or losses from equity method investments is included in the Consolidated Statements of Operations. The Company carries other investments, for which the Company does not have the ability to exercise significant influence, at fair value, with changes in fair value recognized in net income. For equity investments that do not have a readily determinable fair value, the Company measures the investment at cost less impairment, plus or minus observable price changes. The Company periodically evaluates the carrying value of its investments. See Note 9 – Investments for further details about the Company's evaluation of the fair value of its investments.
Long-Lived Assets	Long-Lived Assets. The Company continually evaluates whether events and circumstances have occurred that indicate the remaining estimated useful lives of its definite-lived intangible assets and other long-lived assets may warrant revision or that the remaining balance of such assets may not be recoverable. Once an impairment indicator is identified, the Company tests for recoverability of the related asset group using an estimate of undiscounted cash flows over the asset group's remaining life. If an asset group's carrying value is not recoverable, the Company records an impairment loss based on the excess of the carrying value of the asset group over the long-lived asset group's fair value. Fair value is determined using observable inputs, including
Other Long-Term Assets	Other Long-Term Assets. Other long-term assets consists mainly of capitalized financing costs and deposits.
Revenue Recognition	Revenue Recognition. Revenue is recognized as performance obligations under the terms of contracts with customers are satisfied; this occurs when control of promised goods is transferred to the customer. The Company recognizes revenue related to the sale of extended warranty contracts that extend the coverage period beyond the standard warranty period over the life of the extended warranty period. Revenue is measured as the amount of consideration expected to be entitled to in exchange for transferring goods or providing services. The Company has excluded sales, value add, and other taxes collected concurrent with revenue-producing activities from the determination of the transaction price for all contracts. The Company has elected to account for shipping and handling activities that occur after the customer has obtained control of a good as a fulfillment activity. For all contracts with customers, the Company has not adjusted the promised amount of consideration for the effects of a significant financing component as the period between the transfer of the promised goods and the customer's payment is expected to be one year or less. For product sales, the Company transfers control and recognizes revenue at the time the product ships from a manufacturing or distribution facility ("free on board shipping point"), or at the time the product arrives at the customer's facility ("free on board destination"). When the shipping terms are "free on board shipping point", the customer obtains control and is able to direct the use of, and obtain substantially all of the benefits from, the products at the time the products are shipped. For shipments provided under "free on board destination", control transfers to the customer upon delivery. Payment terms vary but are generally due within 30 days of transferring control. For the Company's Boat and Propulsion segments, most product sales to dealers are wholesale financed through the Company's joint venture, Brunswick Acceptance Company, LLC (BAC), or other lending institutions, and payment is typically due in the month of shipment. For further information on the BAC joint venture, refer to Note 10 – Financing Joint Venture . In addition, periodically the Company may require the customer to provide up-front cash deposits in advance of performance. The Company also sells separately priced extended warranty contracts that extend the coverage period beyond the standard warranty period. When determining an appropriate allocation of the transaction price to the extended warranty performance obligation, the Company uses an observable price to determine the stand-alone selling price. Extended warranties typically range from an additional 1 year to 3 years. The Company receives payment at the inception of the contract and recognizes revenue over the extended warranty coverage period. This time-elapsed method is used to measure progress because the Company, on average, satisfies its performance obligation evenly over the warranty period. See Note 2 – Revenue Recognition for more information.
Advertising Costs	Advertising Costs. The Company records advertising and promotion costs in Selling, general and administrative expense in the Consolidated Statements of Operations in the period when the advertising first takes place. Advertising and promotion costs were $29.7 million, $35.6 million and $31.7 million for the years ended December 31, 2020, 2019 and 2018, respectively.
Foreign Currency	Foreign Currency. The functional currency for the majority of Brunswick's operations is the U.S. dollar. All assets and liabilities of operations with a functional currency other than the U.S. dollar are translated at period end current rates. The resulting translation adjustments are recorded in Accumulated other comprehensive loss, net of tax. Revenues and expenses of operations with a functional currency other than the U.S. dollar are translated at the average exchange rates for the period. Transaction gains and losses resulting from changes in foreign currency exchange rates are recorded in either Cost of sales or Other expense, net in the Consolidated Statements of Operations.
Share-Based Compensation	Share-Based Compensation. The Company records amounts for all share-based compensation, including non-vested stock awards and performance-based share awards over the vesting period in the Consolidated Statements of Operations based upon their fair values at the date of the grant. Share-based compensation costs are included in Selling, general and administrative expense in the Consolidated Statements of Operations. See Note 18 – Stock Plans and Management Compensation for a description of the Company's accounting for share-based compensation plans.
Research and Development	Research and Development. Research and development costs are expensed as incurred.
Derivatives	Derivatives. The Company uses derivative financial instruments to manage its risk associated with movements in foreign currency exchange rates, interest rates, and commodity prices. These instruments are used in accordance with guidelines established by the Company's management and are not used for trading or speculative purposes. The Company records all derivatives on the Consolidated Balance Sheets at fair value. See Note 14 – Financial Instruments for further discussion.
Recent Accounting Pronouncements	Recently Adopted Accounting Standards Current Expected Credit Loss : In June 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-13, Measurement of Credit Losses on Financial Instruments, which updated the Accounting Standards Codification (ASC) to add an impairment model that is based on expected losses rather than incurred losses. On January 1, 2020, the Company adopted this standard and the adoption did not have a material impact on the consolidated financial statements. Defined Benefit Plan Disclosures : In August 2018, the FASB issued ASU 2018-14, Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans, which modifies the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. The amendment is effective for interim and annual periods ending after December 15, 2020, with early adoption permitted. The Company adopted this standard and it did not have a material impact on the consolidated financial statements.
Marketable Securities, Policy	Investments in Marketable Securities . The Company classifies investments in debt securities that are not considered to be cash equivalents as Short-term investments in marketable securities as discussed in Note 9 – Investments . Short-term investments in marketable securities have a stated maturity of twelve months or less from the balance sheet date. These securities are considered as available-for-sale and are reported at fair value. Unrealized gains and losses on these debt securities are recorded net of tax as a component of Accumulated other comprehensive loss in Unrealized investment losses within Shareholders' equity. Declines in market value from the original cost deemed to be "other-than-temporary" are charged to Other expense, net in the Consolidated Statements of Operations in the period in which the loss occurs. The Company considers both the duration for which a decline in value has occurred and the extent of the decline in its determination of whether a decline in value has been "other than temporary." Realized gains and losses are calculated based on the specific identification method and are included in Other expense, net in the Consolidated Statements of Operations.

Significant Accounting Polici_3

Significant Accounting Policies Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Net Gains (Losses) on Sale and Disposal of Property [Table Text Block]	The amount of gains and losses for the years ended December 31 were as follows: (in millions) 2020 2019 2018 Gains on the sale of property $ 0.7 $ 1.8 $ 0.3 Losses on the sale and disposal of property (0.5) (2.4) (0.8) Net gains (losses) on sale and disposal of property $ 0.2 $ (0.6) $ (0.5)

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue [Table Text Block]	The following table presents the Company's revenue into categories that depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors: Year Ended December 31, 2020 (in millions) Propulsion Parts & Accessories Boat Total Geographic Markets United States $ 1,207.8 $ 1,091.0 $ 957.5 $ 3,256.3 Europe 255.2 180.5 128.5 564.2 Asia-Pacific 240.4 117.9 27.7 386.0 Canada 66.7 80.9 114.2 261.8 Rest-of-World 108.3 38.5 22.4 169.2 Segment Eliminations (263.1) (26.9) — (290.0) Total $ 1,615.3 $ 1,481.9 $ 1,250.3 $ 4,347.5 Major Product Lines Outboard Engines $ 1,471.8 $ — $ — $ 1,471.8 Controls, Rigging, and Propellers 258.4 — — 258.4 Sterndrive Engines 148.2 — — 148.2 Distribution Parts and Accessories — 664.2 — 664.2 Advanced Systems Group — 412.1 — 412.1 Engine Parts and Accessories — 432.5 — 432.5 Aluminum Freshwater Boats — — 488.5 488.5 Recreational Fiberglass Boats — — 427.1 427.1 Saltwater Fishing Boats — — 298.7 298.7 Business Acceleration — — 40.5 40.5 Boat Eliminations/Other — — (4.5) (4.5) Segment Eliminations (263.1) (26.9) — (290.0) Total $ 1,615.3 $ 1,481.9 $ 1,250.3 $ 4,347.5 Year Ended December 31, 2019 (in millions) Propulsion Parts & Accessories Boat Total Geographic Markets United States $ 1,152.1 $ 978.5 $ 1,009.0 $ 3,139.6 Europe 235.1 175.8 115.6 526.5 Asia-Pacific 143.2 103.4 31.2 277.8 Canada 62.7 80.1 154.8 297.6 Rest-of-World 99.8 42.3 23.7 165.8 Segment Eliminations (269.7) (29.2) — (298.9) Total $ 1,423.2 $ 1,350.9 $ 1,334.3 $ 4,108.4 Major Product Lines Outboard Engines $ 1,306.7 $ — $ — $ 1,306.7 Controls, Rigging, and Propellers 213.6 — — 213.6 Sterndrive Engines 172.6 — — 172.6 Distribution Parts and Accessories — 571.8 — 571.8 Advanced Systems Group — 413.0 — 413.0 Engine Parts and Accessories — 395.3 — 395.3 Aluminum Freshwater Boats — — 556.6 556.6 Recreational Fiberglass Boats — — 438.8 438.8 Saltwater Fishing Boats — — 316.6 316.6 Business Acceleration — — 24.1 24.1 Boat Eliminations/Other — — (1.8) (1.8) Segment Eliminations (269.7) (29.2) — (298.9) Total $ 1,423.2 $ 1,350.9 $ 1,334.3 $ 4,108.4

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations [Table Text Block]	The following table discloses the results of operations of the business reported as discontinued operations for the years ended December 31, 2020, December 31, 2019 and December 31, 2018 respectively: (in millions) 2020 2019 2018 Net sales $ — $ 448.3 $ 1,038.3 Cost of sales — 334.6 764.3 Selling, general and administrative expense (A) (B) 0.5 113.3 206.1 Research and development expense — 12.6 27.4 Restructuring, exit and impairment charges (C) — 138.3 26.1 Other (income), net — (0.3) (0.1) (Loss) earnings from discontinued operations before income taxes (A) (B) (C) (0.5) (150.2) 14.5 Income tax provision (benefit) 0.0 (32.7) 2.6 (Loss) earnings from discontinued operations, net of tax (A) (B) (C) (0.5) (117.5) 11.9 Loss on disposal of discontinued operations, net of tax (D) (1.5) (43.9) — Net (loss) earnings from discontinued operations, net of tax $ (2.0) $ (161.4) $ 11.9 (A) The Company recorded $16.5 million and $19.3 million for the year ended December 31, 2019 and December 31, 2018, respectively, of net costs incurred in connection with the sale of its Fitness business (B) The Company recorded $(0.5) million for the year ended December 31, 2020, primarily resulting from adjustments in certain liabilities as part of the sale of the Fitness business. During 2018, the Company recorded adjustments to certain liabilities that were retained as part of the sale of the bowling businesses. As a result, Earnings (loss) from discontinued operations, net of tax, includes a gain of $3.0 million ($2.2 million after tax) for the year ended December 31, 2018. (C) In the first quarter of 2019, the Company re-evaluated the fair value of the Fitness reporting unit and determined the fair value of the business was less than its carrying value. As a result, (Loss) earnings from discontin ued operations, net of tax, includes a $137.2 million ($103.0 million after tax) goodwill impairment charge for the year ended December 31, 2019. (D) The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2020 includes a pre-tax loss o f $2.0 million and a net tax benefit of $0.5 million. The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2019 includes a pre-tax loss of $51.3 million and a net tax benefit of $7.4 million.

Restructuring, Exit, Impairme_2

Restructuring, Exit, Impairment and Integration Activities (Tables)	12 Months Ended
	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Summary of the Expense Associated with Restructuring, Exit, Impairment and Integration Activities	The following table is a summary of the net expense associated with the restructuring, exit and impairment activities. (in millions) 2020 2019 2018 Restructuring and exit activities: Employee termination and other benefits $ 3.0 $ 11.7 $ 9.5 Current asset write-downs — 0.5 18.9 Professional fees 0.1 3.1 8.0 Other (A) 0.5 0.5 10.7 Asset disposition and impairment actions: Definite-lived and other asset impairments 0.5 3.0 12.7 Valuation (reversal) allowance on disposal group — — (5.0) Total restructuring, exit and impairment charges $ 4.1 $ 18.8 $ 54.8
Schedule of Restructuring Reserve by Segment [Table Text Block]	The following tables summarize the change in accrued restructuring, exit and impairment charges within Accrued expenses in the Consolidated Balance Sheets for the years ended December 31, 2020, 2019 and 2018: Dec 31, 2019 2020 Activity Dec 31, 2020 (in millions) Accrued Charges Total Charges Non-Cash Charges Payments (A) Accrued Charges (B) Parts & Accessories $ 1.2 $ 0.8 $ — $ (1.7) $ 0.3 Boat 6.1 1.3 (0.5) (5.7) 1.2 Corporate 1.5 2.0 — (1.8) 1.7 Total $ 8.8 $ 4.1 $ (0.5) $ (9.2) $ 3.2 Dec 31, 2018 2019 Activity Dec 31, 2019 (in millions) Accrued Charges Total Charges Non-Cash Charges Payments (A) Accrued Charges Parts & Accessories $ — $ 4.6 $ — $ (3.4) $ 1.2 Boat 15.4 9.7 (3.5) (15.5) 6.1 Corporate 0.7 4.5 — (3.7) 1.5 Total $ 16.1 $ 18.8 $ (3.5) $ (22.6) $ 8.8 Dec 31, 2017 2018 Activity Dec 31, 2018 (in millions) Accrued Charges Total Charges Non-Cash Charges Payments (A) Accrued Charges Boat $ 3.7 $ 54.1 $ (26.6) $ (15.8) $ 15.4 Corporate — 0.7 — — 0.7 Total $ 3.7 $ 54.8 $ (26.6) $ (15.8) $ 16.1 (A) Cash payments may include payments related to prior period charges. (B) The accrued charges as of December 31, 2020 are expected to be paid during 2021.
Actions Initiated in 2020 [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring, Exit, Impairment and Integration Charges by Type of Cost and Reportable Segment [Table Text Block]	The following table is a summary of the expenses associated with the restructuring, exit and impairment activities for the year ended December 31, 2020, related to actions initiated in 2020: (in millions) Parts & Accessories Boat Corporate Total Restructuring and exit activities: Employee termination and other benefits $ 0.5 $ 0.4 $ 1.8 $ 2.7 Other — 0.5 — 0.5 Asset disposition and impairment actions: Definite-lived and other asset impairments — 0.5 — 0.5 Total restructuring, exit and impairment charges $ 0.5 $ 1.4 $ 1.8 $ 3.7
Actions Initiated in 2019 [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring, Exit, Impairment and Integration Charges by Type of Cost and Reportable Segment [Table Text Block]	The following table is a summary of the expenses associated with the restructuring, exit and impairment activities for the year ended December 31, 2020 and December 31, 2019, related to actions initiated in 2019: December 31, 2020 December 31, 2019 (in millions) Parts & Accessories Boat Corporate Total Parts & Accessories Boat Corporate Total Restructuring and exit activities: Employee termination and other benefits $ 0.3 $ (0.1) $ 0.1 $ 0.3 $ 4.6 $ 4.0 $ 3.1 $ 11.7 Current asset write-downs — — — — — 0.5 — 0.5 Professional fees — — 0.1 0.1 — 1.7 1.4 3.1 Other — — — — — 0.5 — 0.5 Asset disposition and impairment actions: Definite-lived and other asset impairments — — — — — 3.0 — 3.0 Total restructuring, exit and impairment charges $ 0.3 $ (0.1) $ 0.2 $ 0.4 $ 4.6 $ 9.7 $ 4.5 $ 18.8
Actions Initiated in 2018 [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring, Exit, Impairment and Integration Charges by Type of Cost and Reportable Segment [Table Text Block]	The following table is a summary of the expenses associated with the restructuring, exit and impairment activities for the year ended December 31, 2018, related to actions initiated in 2018: (in millions) Boat Corporate Total Restructuring and exit activities: Employee termination and other benefits $ 4.7 $ 0.7 $ 5.4 Current asset write-downs 18.9 — 18.9 Professional fees 3.9 — 3.9 Other 10.7 — 10.7 Asset disposition and impairment actions: Definite-lived and other asset impairments 12.7 — 12.7 Total restructuring, exit and impairment charges $ 50.9 $ 0.7 $ 51.6
Actions Initiated in 2017 [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring, Exit, Impairment and Integration Charges by Type of Cost and Reportable Segment [Table Text Block]	The following table is a summary of the expense associated with the restructuring, exit and impairment activities within the Boat segment, for the year ended December 31, 2018, related to actions initiated in 2017: (in millions) Restructuring and exit activities: Employee termination and other benefits $ 4.1 Professional fees 4.1 Asset disposition and impairment actions: Valuation allowance (reversal) on disposal (5.0) Total restructuring, exit, integration and impairment charges $ 3.2

Acquisitions Schedule of assets

Acquisitions Schedule of assets acquired, liabilities assumed and cash consideration paid (Tables)	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The following table is a summary of the assets acquired, liabilities assumed and net cash consideration paid for the Power Products acquisition during 2018: (in millions) Fair Value Useful Life Accounts and notes receivable $ 38.3 Inventory 64.3 Goodwill (A) (B) (C) 355.5 Trade names 111.0 Indefinite Customer relationships 430.0 15 years Property and equipment 10.6 Other assets 5.6 Total assets acquired 1,015.3 Accounts payable (B) 27.3 Accrued expenses (B) (C) 22.0 Deferred tax liabilities (C) 56.4 Total liabilities assumed 105.7 Net cash consideration paid (B) (C) $ 909.6 (A) The goodwill recorded for the acquisition of Power Products is partially deductible for tax purposes. (B) Includes $4.4 million and $3.0 million of purchase accounting adjustments in the first and second quarters of 2019, respectively, primarily related to contingency reserves. (C) Includes $3.9 million of purchase accounting adjustments in the third quarter of 2019 primarily related to deferred taxes.
Business Acquisition, Pro Forma Information [Table Text Block]	The pro forma results include adjustments primarily related to interest expense on the Term Loans and amortization of intangible assets. (in millions) Year Ended December 31, 2018 Pro forma Net sales $ 4,271.1 Pro forma Operating earnings 362.8 Pro forma Net earnings from continuing operations 239.8 The pro forma results reflect an effective income tax rate of 17.2 percent for the year ended December 31, 2018.

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Operating Segments	Information about the operations of Brunswick's reportable segments is set forth below: Reportable Segments Net Sales Operating Earnings (Loss) Total Assets (in millions) 2020 2019 2018 2020 2019 2018 2020 2019 Propulsion $ 1,878.4 $ 1,692.9 $ 1,759.3 $ 285.5 $ 240.3 $ 243.8 $ 962.4 $ 1,002.8 Parts & Accessories 1,508.8 1,380.1 1,234.3 275.4 237.5 188.0 1,500.6 1,519.0 Boat 1,250.3 1,334.3 1,471.3 70.2 76.2 9.1 488.1 473.0 Corporate/Other — — — (91.8) (83.0) (85.4) 819.5 569.6 Segment Eliminations (290.0) (298.9) (344.0) — — — — — Total $ 4,347.5 $ 4,108.4 $ 4,120.9 $ 539.3 $ 471.0 $ 355.5 $ 3,770.6 $ 3,564.4 Depreciation Amortization (in millions) 2020 2019 2018 2020 2019 2018 Propulsion $ 72.0 $ 62.9 $ 58.2 $ 0.0 $ 0.0 $ 0.0 Parts & Accessories 14.3 13.3 11.1 30.1 30.3 23.0 Boat 30.7 28.2 26.7 1.8 1.3 1.0 Corporate/Other 4.5 2.7 4.0 — — — Total $ 121.5 $ 107.1 $ 100.0 $ 31.9 $ 31.6 $ 24.0 Capital Expenditures Research & Development Expense (in millions) 2020 2019 2018 2020 2019 2018 Propulsion $ 113.7 $ 157.2 $ 109.2 $ 85.4 $ 84.6 $ 85.1 Parts & Accessories 21.1 23.4 17.1 19.8 18.8 10.7 Boat 37.6 47.0 48.5 20.7 18.2 25.7 Corporate/Other 10.0 5.0 5.4 — — — Total $ 182.4 $ 232.6 $ 180.2 $ 125.9 $ 121.6 $ 121.5
Geographic Segments	Geographic Segments Net sales Net property (in millions) 2020 2019 2018 2020 2019 United States $ 2,998.0 $ 2,871.1 $ 2,918.0 $ 774.2 $ 714.6 International 1,349.5 1,237.3 1,202.9 65.1 63.0 Corporate/Other — — — 24.3 18.8 Total $ 4,347.5 $ 4,108.4 $ 4,120.9 $ 863.6 $ 796.4

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Summary of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2020: (in millions) Level 1 Level 2 Total Assets: Cash equivalents $ 19.3 $ — $ 19.3 Short-term investments in marketable securities 56.7 — 56.7 Restricted cash 10.7 — 10.7 Derivatives — 2.2 2.2 Total assets $ 86.7 $ 2.2 $ 88.9 Liabilities: Derivatives $ — $ 12.0 $ 12.0 Deferred compensation 1.1 18.7 19.8 Total liabilities at fair value $ 1.1 $ 30.7 $ 31.8 Liabilities measured at net asset value 10.7 Total liabilities $ 42.5 The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2019: (in millions) Level 1 Level 2 Total Assets: Cash equivalents $ 0.3 $ — $ 0.3 Short-term investments in marketable securities 0.8 — 0.8 Restricted cash 11.6 — 11.6 Derivatives — 4.2 4.2 Total assets $ 12.7 $ 4.2 $ 16.9 Liabilities: Derivatives $ — $ 3.2 $ 3.2 Deferred compensation 1.2 18.8 20.0 Total liabilities at fair value $ 1.2 $ 22.0 $ 23.2 Liabilities measured at net asset value 8.5 Total liabilities $ 31.7 Refer to Note 14 – Financial Instruments for additional information related to the fair value of derivative assets and liabilities by class. In addition to the items shown in the tables above, see Note 17 – Postretirement Benefits for further discussion regarding the fair value measurements associated with the Company's postretirement benefit plans.

Financing Receivables (Tables)

Financing Receivables (Tables)	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Financing Receivables, Excluding Trade Accounts Receivable Contractually Due Within One Year, by Segment	The Company’s financing receivables, excluding trade accounts receivable contractually due within one year as of December 31, 2020 and December 31, 2019 were $6.5 million and $8.8 million, respectively.

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities	The following is a summary of the fair values, which were equal to the amortized costs, of the Company's available-for-sale securities, all due in one year or less, as of December 31, 2020 and 2019. (in millions) December 31, 2020 December 31, 2019 Corporate Bonds $ 4.7 $ — Commercial Paper 51.2 — U.S. Treasury Bills 0.8 0.8 Total available-for-sale-securities $ 56.7 $ 0.8

Financing Joint Ventures (Table

Financing Joint Ventures (Tables)	12 Months Ended
	Dec. 31, 2020
Financial Services [Abstract]
Maximum Loss Exposure Related to Joint Venture	The Company's maximum loss exposure relating to BAC is detailed as follows: (in millions) December 31, December 31, Investment $ 12.0 $ 18.8 Repurchase and recourse obligations (A) 37.0 36.5 Liabilities (B) (1.0) (1.7) Total maximum loss exposure $ 48.0 $ 53.6 (A) Repurchase and recourse obligations are off-balance sheet obligations provided by the Company for the Propulsion, Parts and Accessories and Boat segments, respectively, and are included within the Maximum Potential Obligations disclosed in Note 13 – Commitments and Contingencies . Repurchase and recourse obligations include a North American repurchase agreement with WFCDF and could be reduced by repurchase activity occurring under other similar agreements with WFCDF and affiliates. The Company's risk under these repurchase arrangements is partially mitigated by the value of the products repurchased as part of the transaction. Amounts above exclude any potential recoveries from the value of the repurchased product. (B) Represents accrued amounts for potential losses related to recourse exposure and the Company's expected losses on obligations to repurchase products, after giving effect to proceeds anticipated to be received from the resale of these products to alternative dealers.

Goodwill and Other Intangibles

Goodwill and Other Intangibles (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Changes in the Company's goodwill during the period ended December 31, 2020, by segment, are summarized below: (in millions) 2019 Acquisitions Adjustments 2020 Propulsion $ 14.5 $ — $ 0.8 $ 15.3 Parts & Accessories 371.9 — 0.6 372.5 Boat 28.6 — 1.3 29.9 Total $ 415.0 $ — $ 2.7 $ 417.7 Changes in the Company's goodwill during the period ended December 31, 2019, by segment, are summarized below: (in millions) 2018 Acquisitions Adjustments 2019 Propulsion $ 14.6 $ — $ (0.1) $ 14.5 Parts & Accessories 360.5 — 11.4 371.9 Boat 2.2 26.0 0.4 28.6 Total $ 377.3 $ 26.0 $ 11.7 $ 415.0
Schedule of Other Intangible Assets	The Company's intangible assets, included within Other intangibles, net on the Consolidated Balance Sheets as of December 31, 2020 and 2019, are summarized by intangible asset type below: 2020 2019 (in millions) Gross Amount Accumulated Amortization Gross Amount Accumulated Amortization Intangible assets: Customer relationships (A) $ 687.7 $ (306.4) $ 687.0 $ (274.6) Trade names 166.2 — 165.8 — Other (A) 18.5 (13.7) 18.4 (13.1) Total $ 872.4 $ (320.1) $ 871.2 $ (287.7) (A) The weighted average remaining amortization period for Customer relationships and Other intangibles assets were 12.1 years and 11.2 years, respectively, as of December 31, 2020. The Company's intangible assets, included within Other intangibles, net on the Consolidated Balance Sheets as of December 31, 2020 and 2019, are summarized by segment below: 2020 2019 (in millions) Gross Amount Accumulated Amortization Gross Amount Accumulated Amortization Propulsion $ 1.0 $ (0.5) $ 1.0 $ (0.5) Parts & Accessories 618.8 (112.4) 617.6 (81.9) Boat 252.6 (207.2) 252.6 (205.3) Total $ 872.4 $ (320.1) $ 871.2 $ (287.7)

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Schedule of Earnings Before Income Taxes by Jurisdiction	The sources of Earnings before income taxes were as follows: (in millions) 2020 2019 2018 United States $ 354.5 $ 10.1 $ 237.3 Foreign 118.2 100.6 73.4 Earnings before income taxes $ 472.7 $ 110.7 $ 310.7
Schedule of Components of Income Tax Provision (Benefit)	The Income tax provision consisted of the following: (in millions) 2020 2019 2018 Current tax expense (benefit): U.S. Federal $ 66.9 $ 94.5 $ (2.3) State and local 9.8 6.3 5.7 Foreign 38.9 29.3 22.9 Total current 115.6 130.1 26.3 Deferred tax expense (benefit): U.S. Federal (17.3) (19.7) 30.5 State and local 1.1 (29.5) 0.9 Foreign (1.4) (0.6) (0.4) Total deferred (17.6) (49.8) 31.0 Income tax provision $ 98.0 $ 80.3 $ 57.3
Schedule of Deferred Tax Assets and Liabilities	Temporary differences and carryforwards giving rise to deferred tax assets and liabilities at December 31, 2020 and 2019 are summarized in the table below: (in millions) 2020 2019 Deferred tax assets: Loss carryforwards $ 71.2 $ 81.9 Tax credit carryforwards 51.1 71.8 Product warranties 28.1 28.4 Sales incentives and discounts 21.9 25.9 Compensation and benefits 20.9 10.5 Deferred revenue 18.1 16.1 Operating lease liabilities 16.3 17.1 Equity compensation 12.0 12.0 Deferred compensation 11.7 10.9 Postretirement and postemployment benefits 11.0 11.5 Other 54.3 51.4 Gross deferred tax assets 316.6 337.5 Valuation allowance (93.4) (93.3) Deferred tax assets 223.2 244.2 Deferred tax liabilities: Depreciation and amortization (48.0) (85.5) State and local income taxes (22.7) (24.3) Operating lease assets (14.9) (15.7) Other (6.3) (5.3) Deferred tax liabilities (91.9) (130.8) Total net deferred tax assets $ 131.3 $ 113.4
Reconciliation of Unrecognized Tax Benefits	The following is a reconciliation of the total amounts of unrecognized tax benefits excluding interest and penalties for the 2020, 2019 and 2018 annual reporting periods: (in millions) 2020 2019 2018 Balance at January 1 $ 3.7 $ 2.3 $ 2.1 Gross increases - tax positions prior periods 0.1 2.0 0.6 Gross decreases - tax positions prior periods — (0.8) (0.7) Gross increases - current period tax positions 0.6 0.4 0.4 Decreases - settlements with taxing authorities (0.1) — (0.1) Reductions - lapse of statute of limitations (0.6) (0.2) — Balance at December 31 $ 3.7 $ 3.7 $ 2.3
Reconciliation of Income Taxes at the Statutory Federal Income Tax Rate to Income Tax Provision (Benefit)	The difference between the actual income tax provision and the tax provision computed by applying the statutory Federal income tax rate to Earnings before income taxes is attributable to the following: (in millions) 2020 2019 2018 Income tax provision at 21 percent $ 99.2 $ 23.2 $ 65.2 State and local income taxes, net of Federal income tax effect 11.6 (3.6) 8.8 Deferred tax asset valuation allowance (0.2) (3.5) 4.0 Equity compensation (1.1) (2.9) (3.1) Change in estimates related to prior years and prior years amended tax return filings 0.9 (2.9) 1.6 Federal and state tax credits (12.0) (11.6) (11.6) Taxes related to foreign income, net of credits 0.7 (5.2) (6.5) Deferred tax reassessment 5.4 1.9 3.3 Tax law changes — — (5.2) FDII deduction (11.4) (5.5) (2.6) Disproportionate tax effect released from Other comprehensive income — 91.4 — Other 4.9 (1.0) 3.4 Actual income tax provision $ 98.0 $ 80.3 $ 57.3 Effective tax rate 20.7 % 72.6 % 18.5 %
Income Tax Provision (Benefit) Allocated to Continuing and Discontinued Operations	Income tax provision allocated to continuing operations and discontinued operations for the years ended December 31 was as follows: (in millions) 2020 2019 2018 Continuing operations $ 98.0 $ 80.3 $ 57.3 Discontinued operations (0.5) (40.1) 2.6 Total income tax provision $ 97.5 $ 40.2 $ 59.9

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Product Warranty Liabilities	The following activity related to product warranty liabilities was recorded in Accrued expenses during the years ended December 31, 2020 and December 31, 2019: (in millions) 2020 2019 Balance at beginning of period $ 117.6 $ 116.8 Payments - Recurring (53.5) (59.2) Payments - Sport Yacht & Yachts and Fitness businesses (6.2) (12.5) Provisions/additions for contracts issued/sold 58.0 59.0 Aggregate changes for preexisting warranties 0.9 7.6 Foreign currency translation 0.9 0.0 Other (A) (1.8) 5.9 Balance at end of period $ 115.9 $ 117.6 (A) The Company retained a $5.9 million warranty liability from the sale of its Fitness business in 2019. The warranty liability pertains to product field campaigns for certain Cybex products designed prior to the Cybex acquisition. The Company recorded $(1.8) million of adjustments as of December 31, 2020.
Extended Product Warranty Liabilities	The following activity related to deferred revenue for extended product warranty contracts was recorded in Accrued expenses and Other long-term liabilities during the years ended December 31, 2020 and December 31, 2019: (in millions) 2020 2019 Balance at beginning of period $ 75.3 $ 66.4 Extended warranty contracts sold 29.5 24.3 Revenue recognized on existing extended warranty contracts (17.3) (15.2) Foreign currency translation 0.2 0.2 Other (0.3) (0.4) Balance at end of period $ 87.4 $ 75.3

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Activity Related to Cash Flow Hedges Recorded in Accumulated Other Comprehensive Loss	The following activity related to cash flow hedges was recorded in Accumulated other comprehensive loss as of December 31: Accumulated Unrealized Derivative Gains (Losses) 2020 2019 (in millions) Pretax After-tax Pretax After-tax Beginning balance $ 1.1 $ (5.5) $ 6.2 $ (1.9) Net change in value of outstanding hedges (6.4) (4.7) 5.1 3.6 Net amount recognized into earnings (6.8) (5.0) (10.2) (7.2) Ending balance $ (12.1) $ (15.2) $ 1.1 $ (5.5)
Fair Values Of Derivative Instruments	As of December 31, 2020 and December 31, 2019, the fair values of the Company’s derivative instruments were: (in millions) Derivative Assets Derivative Liabilities Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value 2020 2019 2020 2019 Derivatives Designated as Cash Flow Hedges Foreign exchange contracts Prepaid expenses and other $ 1.3 $ 4.1 Accrued expenses $ 11.3 $ 2.3 Commodity contracts Prepaid expenses and other 0.9 — Accrued expenses — — Total $ 2.2 $ 4.1 $ 11.3 $ 2.3 Other Hedging Activity Foreign exchange contracts Prepaid expenses and other $ 0.0 $ 0.1 Accrued expenses $ 0.7 $ 0.9
Effect of Derivative Instruments on the Consolidated Statement of Operations	The effect of derivative instruments on the Consolidated Statements of Operations for the years ended December 31, 2020 and December 31, 2019 was: (in millions) Derivatives Designated as Cash Flow Hedging Instruments Amount of Gain (Loss) on Derivatives Recognized in Accumulated Other Comprehensive Loss (Effective Portion) Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Earnings (Effective Portion) Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Earnings (Effective Portion) 2020 2019 2020 2019 Interest rate contracts $ — $ — Interest expense $ (0.6) $ (0.6) Foreign exchange contracts (7.3) 5.1 Cost of sales 7.4 10.8 Commodity contracts 0.9 — Cost of sales 0.0 — Total $ (6.4) $ 5.1 $ 6.8 $ 10.2 Derivatives Designated as Fair Value Hedging Instruments Location of Gain (Loss) on Derivatives Amount of Gain (Loss) on Derivatives Recognized in Earnings 2020 2019 Interest rate contracts Interest expense $ 0.7 $ 0.1 Other Hedging Activity Location of Gain (Loss) on Derivatives Amount of Gain (Loss) on Derivatives Recognized in Earnings 2020 2019 Foreign exchange contracts Cost of sales $ (0.8) $ 2.4 Foreign exchange contracts Other expense, net 1.0 (1.3) Total $ 0.2 $ 1.1

Accrued Expenses Accrued Expens

Accrued Expenses Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2020
Accrued Liabilities, Current [Abstract]
Schedule of Accrued Expenses	Accrued Expenses at December 31, 2020 and 2019 were as follows: (in millions) 2020 2019 Compensation and benefit plans $ 167.8 $ 118.9 Product warranties 115.9 117.6 Sales incentives and discounts 113.6 116.9 Deferred revenue and customer deposits 48.2 38.7 Current operating lease liabilities 19.2 18.4 Legal fees 16.5 15.1 Insurance reserves 15.9 16.3 Real, personal and other non-income taxes 15.5 4.5 Interest 15.3 16.5 Derivatives 12.0 3.2 Environmental reserves 6.9 6.6 Other 31.7 36.9 Total accrued expenses $ 578.5 $ 509.6

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule of Long-term Debt	Long-term debt at December 31, 2020 and December 31, 2019 consisted of the following: (in millions) 2020 2019 Senior Notes, 6.375%, due 2049, net of debt issuances costs of $7.5 and $7.8 $ 222.5 $ 222.2 Senior Notes, 6.500% due 2048, net of debt issuance costs of $8.0 and $8.2 177.0 176.8 Notes, 7.125% due 2027, net of discount of $0.2 and $0.3 and debt issuance costs of $0.3 and $0.4 162.7 162.5 Term loan, floating rate due 2023, net of debt issuance costs of $0.6 and $1.3 (A) (C) 150.7 305.0 Senior Notes, 6.625%, due 2049, net of debt issuances costs of $4.2 and $4.4 120.8 120.6 Debentures, 7.375% due 2023, net of discount of $0.1 and $0.1 and debt issuance costs of $0.1 and $0.2 (B) 104.6 105.2 Loan with Fond du Lac County Economic Development Corporation, 2.0% due 2021, net of discount of $0.8 and $1.6 and debt issuance costs of $0.0 and $0.0 6.9 11.1 Notes, various up to 5.9% payable through 2028 6.2 5.9 Total long-term debt 951.4 1,109.3 Current maturities of long-term debt (43.1) (41.3) Long-term debt, net of current maturities $ 908.3 $ 1,068.0 (A) Beginning in December 2018, scheduled repayment of the 5-year term loan occurs each March, June, September and December equal to 2.50% of the aggregate principal amount of $350.0 million. The remaining principal amount is due August 2023. (B) Included in Debentures, 7.375% percent due 2023 at December 31, 2020 and December 31, 2019, are the aggregate fair values related to the fixed-to-floating interest rate swaps as discussed in Note 14 – Financial Instruments . (C) As of December 31, 2020 and December 31, 2019, the interest rate was 1.74% and 3.50%, respectively.
Schedule of Maturities of Long-term Debt, Net	Scheduled maturities, net: (in millions) 2021 $ 43.1 2022 36.4 2023 186.3 2024 0.5 2025 2.0 Thereafter 683.1 Total long-term debt including current maturities $ 951.4

Postretirement Benefits (Tables

Postretirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Schedule of Net Pension and Other Benefit Costs	Costs. Pension and other postretirement benefit costs included the following components for 2020, 2019 and 2018: Pension Benefits Other Postretirement Benefits (in millions) 2020 2019 2018 2020 2019 2018 Interest cost $ 0.7 $ 6.0 $ 22.6 $ 0.8 $ 1.3 $ 1.1 Expected return on plan assets — (7.4) (24.8) — — — Amortization of prior service credits — — — (0.7) (0.7) (0.7) Amortization of net actuarial losses 0.6 5.8 9.9 — — — Settlement charges (1.1) 292.8 — — — — Net pension and other benefit costs $ 0.2 $ 297.2 $ 7.7 $ 0.1 $ 0.6 $ 0.4
Reconciliation of the Changes in Plans Benefit Obligations, Fair Value of Plan Assets, and Statement of Funded Status	Benefit Obligations and Funded Status. A reconciliation of the changes in the benefit obligations and fair value of assets over the two-year period ending December 31, 2020, and a statement of the funded status at December 31 for these years for the Company's pension and other postretirement benefit plans follow: Pension Benefits Other Postretirement Benefits (in millions) 2020 2019 2020 2019 Reconciliation of benefit obligation: Benefit obligation at previous December 31 $ 28.1 $ 652.8 $ 33.0 $ 34.3 Interest cost 0.7 6.0 0.8 1.3 Actuarial losses 2.1 77.3 1.8 0.2 Benefit payments (3.4) (34.1) (2.4) (2.8) Settlement payments — (673.9) — — Benefit obligation at December 31 27.5 28.1 33.2 33.0 Reconciliation of fair value of plan assets: Fair value of plan assets at previous December 31 10.6 642.0 — — Actual return on plan assets — 70.8 — — Employer contributions 3.4 7.9 2.4 2.8 Benefit payments (3.4) (34.1) (2.4) (2.8) Settlement payments — (673.9) — — Adjustments (A) (10.6) (2.1) — — Fair value of plan assets at December 31 — 10.6 — — Funded status at December 31 $ (27.5) $ (17.5) $ (33.2) $ (33.0) Funded percentage NA 38 % NA NA (A) 2020 adjustment represents the overfunded position of the Company's salaried bargaining plans refunded during the year.
Schedule of Amounts Recognized in Consolidated Balance Sheet	The amounts included in the Company's Consolidated Balance Sheets as of December 31, 2020 and 2019, were as follows: Pension Benefits Other Postretirement Benefits (in millions) 2020 2019 2020 2019 Prepaid expenses and other $ — $ — $ — $ — Accounts and notes receivable — 10.6 — — Assets recognized $ — $ 10.6 $ — $ — Accrued expenses $ 3.0 $ 3.5 $ 3.1 $ 3.6 Postretirement benefit liabilities 24.5 24.6 30.1 29.4 Liabilities recognized $ 27.5 $ 28.1 $ 33.2 $ 33.0
Activity Recorded in Accumulated Other Comprehensive Income or Loss	Accumulated Other Comprehensive Loss. The following pretax activity related to pensions and other postretirement benefits was recorded in Accumulated other comprehensive loss as of December 31: Pension Benefits Other Postretirement Benefits (in millions) 2020 2019 2020 2019 Prior service credits Beginning balance $ — $ — $ (8.1) $ (8.8) Amount recognized as component of net benefit costs — — 0.7 0.7 Ending balance — — (7.4) (8.1) Net actuarial losses Beginning balance 12.0 298.3 (1.4) (1.5) Actuarial losses arising during the period 2.1 12.3 1.8 0.1 Amount recognized as component of net benefit costs (0.6) (298.6) — — Ending balance 13.5 12.0 0.4 (1.4) Total $ 13.5 $ 12.0 $ (7.0) $ (9.5)
Schedule of Health Care Cost Trend Rates [Table Text Block]	The assumed health care cost trend rate for other postretirement benefits for pre-age 65 benefits as of December 31 was as follows: Pre-age 65 Benefits 2020 2019 Health care cost trend rate for next year 5.3 % 5.4 % Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) 4.5 % 4.5 % Year rate reaches the ultimate trend rate 2037 2037
Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates	A one percent change in the assumed health care trend rate at December 31, 2020 would not have a material impact on the accumulated postretirement benefit obligation.
Weighted-Average Assumptions Used to Determine Benefit Obligations and Net Pension and Other Postretirement Benefit Costs	Weighted average assumptions used to determine pension and other postretirement benefit obligations at December 31 were as follows: Pension Benefits Other Postretirement Benefits 2020 2019 2020 2019 Discount rate 2.00 % 2.96 % 2.13 % 3.07 % Weighted average assumptions used to determine net pension and other postretirement benefit costs for the years ended December 31 were as follows: 2020 2019 2018 Discount rate for pension benefits (A) (B) 2.55% 4.13% 3.27% Discount rate for other postretirement benefits (A) (B) 2.65% 3.85% 3.08% Long-term rate of return on plan assets (C) NA NA 4.25% (A) The Company utilizes a yield curve analysis to calculate the discount rates used to determine pension and other postretirement benefit obligations. The yield curve analysis matches the cash flows of the Company's benefit obligations. The yield curve consisted of spot interest rates at half year increments for each of the next 30 years and was developed based on pricing and yield information for high quality corporate bonds rated Aa by either Moody's or Standard & Poor's, private placement bonds that are traded in reliance with Rule 144A and are at least two years from date of issuance, bonds with make-whole provisions and bonds issued by foreign corporations that are denominated in U.S. dollars, excluding callable bonds and bonds less than a minimum size and other filtering criteria. Additionally, the Company's yield curve methodology includes bonds having a yield that is greater than the regression mean yield curve as the Company believes this methodology represents an appropriate estimate of the rates at which the Company could effectively settle its pension obligations. For the Company's Salaried and Bargaining plans which were terminated during 2018, the discount rate was a blend of the December 31, 2018 yield curve rate associated with those participants electing annuity contracts to cover future benefit payments, and a lump-sum segment rate for those participants electing lump-sum benefit payments. (B) The Company uses a "spot rate approach" in the calculation of pension and postretirement interest costs to provide a more accurate measurement of interest costs. The spot rate approach applies separate discount rates for each projected benefit payment in the calculation of pension and postretirement interest costs. (C) The Company evaluates its assumption regarding the estimated long-term rate of return on plan assets based on historical experience, future expectations of investment returns, asset allocations, investment strategies and views of investment professionals.
Schedule of Expected Cash Flows	Expected Cash Flows. The expected cash flows for the Company's pension and other postretirement benefit plan are presented as follows: (in millions) Pension Benefits Other Postretirement Benefits Company contributions expected to be made in 2021 $ 3.0 $ 3.1 Expected benefit payments: 2021 3.0 3.1 2022 2.8 3.0 2023 2.7 2.8 2024 2.3 2.6 2025 2.2 2.5 2026-2030 9.0 10.3

Stock Plans and Management Co_2

Stock Plans and Management Compensation (Tables)	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Non-Vested Stock Award Activity	The weighted average price per Non-vested stock unit at grant date was $64.13, $49.12 and $59.05 for units granted in 2020, 2019 and 2018, respectively. Non-vested stock unit activity for the year ended December 31, 2020 was as follows: (in thousands, except grant date fair value) Non-vested Stock Unit Activity Weighted Average Grant Date Fair Non-vested units, unvested at January 1, 2020 444 53.42 Awarded 272 64.13 Forfeited (58) 57.72 Vested (87) 58.58 Non-vested units, unvested at December 31, 2020 571 57.31
SARs and Stock Option Activity	SARs activity for all plans for the years ended December 31, 2020, 2019 and 2018, was as follows: 2020 2019 2018 (in thousands, except exercise price and terms) Weighted Weighted Aggregate Intrinsic Value Weighted Aggregate Intrinsic Value Aggregate Intrinsic Value Outstanding on January 1 119 $ 21.57 343 $ 16.04 594 $ 14.40 Exercised (97) $ 21.16 $ 5,353 (224) $ 13.13 $ 10,494 (248) $ 12.10 $ 12,636 Forfeited — $ 11.08 0 $ 5.86 (3) $ 17.06 Outstanding on December 31 22 $ 23.41 1.1 years $ 6,276 119 $ 21.57 $ 4,571 343 $ 16.04 $ 10,439 Exercisable and Vested on December 31 22 $ 23.41 1.1 years $ 6,276 119 $ 21.57 $ 4,571 343 $ 16.04 $ 10,439
SARs and Stock Options Outstanding	The following table summarizes information about SARs outstanding as of December 31, 2020: Outstanding and Exercisable Exercise Price Number (in thousands) Weighted $14.68 0.6 0.7 years $21.52 1.4 0.1 years $23.79 19.7 1.1 years
Fair Value Assumptions for Performance Awards	The fair values of the senior executives' performance share award grants with a TSR modifier at the grant date in 2020, 2019 and 2018 were $64.72, $49.64 and $61.59, respectively, which were estimated using the Monte Carlo valuation model, and incorporated the following assumptions: 2020 2019 2018 Risk-free interest rate 1.4 % 2.9 % 2.4 % Dividend yield 1.5 % 1.7 % 1.3 % Volatility factor 46.6 % 41.0 % 38.9 % Expected life of award 2.9 years 2.9 years 2.9 years
Performance Award Activity	Performance award activity for the year ended December 31, 2020 was as follows: (in thousands, except grant date fair value) Performance Awards Weighted Average Grant Date Fair Value ($) Performance awards, unvested at January 1 88 53.55 Awarded 116 63.13 Forfeited (37) 57.71 Vested and earned 45 42.34 Performance awards, unvested at December 31 212 55.71

Comprehensive Income (Tables)

Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2020
Comprehensive Income [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	The following table presents reclassification adjustments out of Accumulated other comprehensive loss during the years ended December 31, 2020, 2019 and 2018: (in millions) Details about Accumulated other comprehensive loss components 2020 2019 2018 Affected line item in the statement where net income is presented Amount of loss reclassified into earnings from foreign currency: Foreign currency cumulative translation adjustment $ — $ (13.9) $ — Net (loss) earnings from discontinued operations, net of tax — (13.9) — Net (loss) earnings from discontinued operations, net of tax — 0.1 — Net (loss) earnings from discontinued operations, net of tax $ — $ (13.8) $ — Net (loss) earnings from discontinued operations, net of tax Amortization of defined benefit items: Prior service credits $ 0.7 $ 0.7 $ 0.7 Other expense, net (A) Net actuarial losses (1.1) (6.2) (10.3) Other expense, net (A) Net actuarial losses — (292.8) — Pension settlement benefit (charge) (A) (B) (0.4) (298.3) (9.6) Earnings before income taxes 0.1 (15.0) 2.2 Income tax provision (B) $ (0.3) $ (313.3) $ (7.4) Net earnings from continuing operations (B) Amount of gain (loss) reclassified into earnings on derivative contracts: Interest rate contracts $ (0.6) $ (0.6) $ (0.9) Interest expense Foreign exchange contracts 7.4 10.8 (2.5) Cost of sales Commodity Contracts 0.0 — — Cost of sales 6.8 10.2 (3.4) Earnings before income taxes (1.8) (3.0) 0.8 Income tax provision $ 5.0 $ 7.2 $ (2.6) Net earnings from continuing operations (A) These Accumulated other comprehensive loss components are included in the computation of net pension and other benefit costs. See Note 17 – Postretirement Benefits for additional details. (B) In 2019, the Company fully exited its qualified benefit pension plans and as a result, recorded a pre-tax settlement charge of $292.8 million. The income tax impact of the settlement action was a net provision of $17.5 million, consisting of an income tax benefit of $73.9 million associated with the pension settlement charge netted against an income tax charge of $91.4 million resulting from the release of disproportionate tax effects in Accumulated other comprehensive loss. Refer to Note 17 – Postretirement Benefits and Note 12 – Income Taxes in the Notes to Consolidated Financial Statements for further information on the pension settlement and related income tax consequences, respectively.

Treasury Stock (Tables)

Treasury Stock (Tables)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Treasury Stock Activity	Treasury stock activity for the years ended December 31, 2020, 2019 and 2018, was as follows: (Shares in thousands) 2020 2019 2018 Balance at January 1 22,969 15,781 15,001 Compensation plans and other (263) (542) (460) Share repurchases 1,957 7,730 1,240 Balance at December 31 24,663 22,969 15,781

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Lease Assets and Lease Liabilities [Table Text Block]	A summary of the Company's lease assets and lease liabilities as of December 31, 2020 and December 31, 2019 is as follows: (in millions) Classification Dec 31, 2020 Dec 31, 2019 Lease Assets Operating lease assets Operating lease assets $ 83.0 $ 83.2 Lease Liabilities Current operating lease liabilities Accrued expenses 19.2 18.4 Non-current operating lease liabilities Operating lease liabilities 69.8 70.1 Total lease liabilities $ 89.0 $ 88.5
Lease, Cost [Table Text Block]	A summary of the Company's total lease cost for the years ended December 31, 2020 and December 31, 2019 is as follows: (in millions) Classification Dec 31, 2020 Dec 31, 2019 Operating lease cost Selling, general, and administrative expense $ 13.2 $ 13.9 Cost of sales 24.9 25.6 Variable lease cost Selling, general, and administrative expense 1.1 0.5 Cost of sales 4.8 4.4 Total lease cost (A) $ 44.0 $ 44.4 (A) Includes total short-term lease cost which is immaterial.
Operating Lease Liability, Maturity Analysis [Table Text Block]	The Company's maturity analysis of its operating lease liabilities as of December 31, 2020 is as follows: (in millions) 2021 $ 24.4 2022 22.0 2023 19.0 2024 15.7 2025 8.8 Thereafter 9.9 Total lease payments 99.8 Less: Interest (10.8) Present value of lease liabilities $ 89.0

Quarterly Data (unaudited) (Tab

Quarterly Data (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Schedule of quarterly financial information	Quarter Ended (in millions, except per share data) March 28, June 27, September 26, December 31, Year Ended December 31, 2020 Net sales $ 965.5 $ 987.8 $ 1,233.1 $ 1,161.1 $ 4,347.5 Gross margin 243.8 256.0 376.9 336.3 1,213.0 Restructuring, exit and impairment charges (C) 0.4 2.1 1.8 (0.2) 4.1 Pension settlement benefit (charge) (D) — 1.3 (0.2) — 1.1 Net earnings from continuing operations (E) 70.7 71.2 136.8 96.0 374.7 Net (loss) earnings from discontinued operations, net of tax (1.7) (0.5) 1.1 (0.9) (2.0) Net earnings 69.0 70.7 137.9 95.1 372.7 Basic earnings (loss) per common share: Net earnings from continuing operations $ 0.88 $ 0.89 $ 1.72 $ 1.22 $ 4.73 Net (loss) earnings from discontinued operations (0.02) (0.00) 0.02 (0.01) (0.03) Net earnings $ 0.86 $ 0.89 $ 1.74 $ 1.21 $ 4.70 Diluted earnings (loss) per common share: Net earnings from continuing operations $ 0.88 $ 0.89 $ 1.71 $ 1.22 $ 4.70 Net (loss) earnings from discontinued operations (0.02) (0.00) 0.02 (0.02) (0.02) Net earnings $ 0.86 $ 0.89 $ 1.73 $ 1.20 $ 4.68 Dividends declared $ 0.24 $ 0.24 $ 0.24 $ 0.27 $ 0.99 Common stock price (NYSE symbol: BC): High $ 66.32 $ 67.39 $ 73.99 $ 84.00 $ 84.00 Low $ 25.22 $ 25.61 $ 56.50 $ 58.74 $ 25.22 Quarter Ended (in millions, except per share data) March 30, June 29, September 28, December 31, Year Ended December 31, 2019 Net sales (A) $ 1,050.7 $ 1,163.5 $ 976.6 $ 917.6 $ 4,108.4 Gross margin (B) 279.5 328.0 276.9 236.6 1,121.0 Restructuring, exit and impairment charges (C) 3.2 5.4 7.4 2.8 18.8 Pension settlement (charge) benefit (D) — — (294.1) 1.3 (292.8) Net earnings (loss) from continuing operations (E) 76.2 112.1 (232.9) 75.0 30.4 Net loss from discontinued operations, net of tax (112.5) (34.6) (6.4) (7.9) (161.4) Net (loss) earnings (36.3) 77.5 (239.3) 67.1 (131.0) Basic earnings (loss) per common share: Net earnings (loss) from continuing operations $ 0.87 $ 1.29 $ (2.74) $ 0.92 $ 0.36 Net loss from discontinued operations (1.29) (0.40) (0.08) (0.10) (1.90) Net (loss) earnings $ (0.42) $ 0.89 $ (2.82) $ 0.82 $ (1.54) Diluted earnings (loss) per common share: Net earnings (loss) from continuing operations $ 0.87 $ 1.28 $ (2.74) $ 0.92 $ 0.36 Net loss from discontinued operations (1.29) (0.39) (0.08) (0.10) (1.89) Net (loss) earnings $ (0.42) $ 0.89 $ (2.82) $ 0.82 $ (1.53) Dividends declared $ 0.21 $ 0.21 $ 0.21 $ 0.24 $ 0.87 Common stock price (NYSE symbol: BC): High $ 55.35 $ 54.76 $ 54.75 $ 62.23 $ 62.23 Low $ 44.89 $ 41.02 $ 42.57 $ 49.36 $ 41.02 (A) In the second quarter of 2018, the Company announced its intention to wind down Sport Yacht & Yachts (SYY) operations. During the second quarter and the full-year of 2019, SYY had Net sales of $(0.7) million. (B) Gross margin is defined as Net sales less Cost of sales (COS) as presented in the Consolidated Statements of Operations. During the second and fourth quarter and the full-year of 2019, the Company recorded $3.2 million, $3.9 million and $7.1 million in COS, respectively, related to SYY. (C) Restructuring, exit, integration and impairment charges are discussed in Note 4 – Restructuring, Exit and Impairment Activities. (D) Pension settlement charges are discussed in Note 17 – Postretirement Benefits (E ) During the first, second, third and fourth quarter and full-year of 2020, Net earnings (loss) from continuing operations inclu des $6.9 million, $7.0 million, $6.5 million, $7.2 million and $27.6 million, res pectively, related to purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Net earnings (loss) from continuing operations also includes $(0.3) million, $0.4 million, $(0.7) million, $0.9 million and $0.3 million related to discrete tax items. During the first, second, third and fourth quarter and full-year ended 2019, Net earnings (loss) from continuing operations includ es $5.7 million, $9.0 million, $6.1 million, $8.2 million and $29.0 million, respec tively, related to SYY, purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Refer to Note 5 – Acquisitions for further details. Net earnings (loss) from continuing operations also includes $(1.7) million, $1.8 million, $(2.5) million, $(14.8) million and $(17.2) million related to discrete tax items. In the third quarter and full-year of 2019, the Company had a loss of extinguishment of debt, net of tax, of $0.8 million.

Significant Accounting Polici_4

Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Significant Accounting Policies [Line Items]
Percentage of the Company's Inventories Utilizing First In, First Out Method (FIFO)	50.00%	45.00%
Amount Last In, First Out (LIFO) Inventory Method is Below First In, First Out (FIFO) Inventory Method in Inventory Calculation	$ 145.3	$ 139.9
Accumulated Capitalized Interest Costs	4.4	5
Capital Expenditures Incurred but Not yet Paid	31.7	27.5
Gains on the Sale of Property	0.7	1.8	$ 0.3
Losses on the Sale and Disposal of Property	(0.5)	(2.4)	(0.8)
Net Gains (Losses) on Sale and Disposal of Property	0.2	(0.6)	(0.5)
Assets Held-for-sale, Not Part of Disposal Group	3	3
Impairment of Long-Lived Assets	0.9	3	12.7
Advertising Costs	29.7	35.6	31.7
Effect of LIFO Inventory Liquidation on Income	$ 0	$ 0	$ 0
Minimum [Member]
Significant Accounting Policies [Line Items]
Extended Warranty Period of Coverage	1 year
Amortization Period for Customer Relationships and Trade Names	3 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Extended Warranty Period of Coverage	3 years
Building and Building Improvements [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Asset Depreciable Life (in Years)	5 years
Building and Building Improvements [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Asset Depreciable Life (in Years)	40 years
Equipment [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Asset Depreciable Life (in Years)	2 years
Equipment [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Asset Depreciable Life (in Years)	20 years
Tools, Dies and Molds [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Asset Depreciable Life (in Years)	8 years
Software Development [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Asset Depreciable Life (in Years)	3 years
Software Development [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Asset Depreciable Life (in Years)	7 years
Amortization Period for Customer Relationships and Trade Names	15 years

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 4,347.5	$ 4,108.4
Boat Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(4.5)	(1.8)
Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,250.3	1,334.3
Boat [Member] | Boat Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(4.5)	(1.8)
Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,481.9	1,350.9
Parts and Accessories [Member] | Boat Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,615.3	1,423.2
Propulsion [Member] | Boat Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Aluminum Freshwater Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	488.5	556.6
Aluminum Freshwater Boats [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	488.5	556.6
Aluminum Freshwater Boats [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Aluminum Freshwater Boats [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Recreational Fiberglass Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	427.1	438.8
Recreational Fiberglass Boats [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	427.1	438.8
Recreational Fiberglass Boats [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Recreational Fiberglass Boats [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Saltwater Fishing Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	298.7	316.6
Saltwater Fishing Boats [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	298.7	316.6
Saltwater Fishing Boats [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Saltwater Fishing Boats [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Business Acceleration [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	40.5	24.1
Business Acceleration [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	40.5	24.1
Business Acceleration [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Business Acceleration [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Outboard Engines [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,471.8	1,306.7
Outboard Engines [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Outboard Engines [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Outboard Engines [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,471.8	1,306.7
Controls, Rigging, and Propellers [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	258.4	213.6
Controls, Rigging, and Propellers [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Controls, Rigging, and Propellers [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Controls, Rigging, and Propellers [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	258.4	213.6
Sterndrive Engine [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	148.2	172.6
Sterndrive Engine [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Sterndrive Engine [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Sterndrive Engine [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	148.2	172.6
Distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	664.2	571.8
Distribution [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Distribution [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	664.2	571.8
Distribution [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Advanced Systems Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	412.1	413
Advanced Systems Group [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Advanced Systems Group [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	412.1	413
Advanced Systems Group [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Engine Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	432.5	395.3
Engine Parts and Accessories [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Engine Parts and Accessories [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	432.5	395.3
Engine Parts and Accessories [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Marine Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(290)	(298.9)
Marine Eliminations [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Marine Eliminations [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(26.9)	(29.2)
Marine Eliminations [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(263.1)	(269.7)
United States [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3,256.3	3,139.6
United States [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	957.5	1,009
United States [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,091	978.5
United States [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,207.8	1,152.1
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	564.2	526.5
Europe [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	128.5	115.6
Europe [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	180.5	175.8
Europe [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	255.2	235.1
Asia-Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	386	277.8
Asia-Pacific [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	27.7	31.2
Asia-Pacific [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	117.9	103.4
Asia-Pacific [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	240.4	143.2
Canada [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	261.8	297.6
Canada [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	114.2	154.8
Canada [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	80.9	80.1
Canada [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	66.7	62.7
Rest of World [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	169.2	165.8
Rest of World [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	22.4	23.7
Rest of World [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	38.5	42.3
Rest of World [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 108.3	$ 99.8

Revenue Recognition Contracts w

Revenue Recognition Contracts with Customer (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2020
Revenue from Contract with Customer [Abstract]
Contract with Customer, Liability	$ 113		$ 96.2
Contract with Customer, Liability, Revenue Recognized	34.8
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4,347.5	$ 4,108.4
Boat Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(4.5)	(1.8)
Outboard Engines [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,471.8	1,306.7
Controls, Rigging, and Propellers [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	258.4	213.6
Sterndrive Engine [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	148.2	172.6
Distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	664.2	571.8
Advanced Systems Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	412.1	413
Engine Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	432.5	395.3
Aluminum Freshwater Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	488.5	556.6
Recreational Fiberglass Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	427.1	438.8
Saltwater Fishing Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	298.7	316.6
Business Acceleration [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	40.5	24.1
Marine Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(290)	(298.9)
Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,250.3	1,334.3
Boat [Member] | Boat Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(4.5)	(1.8)
Boat [Member] | Outboard Engines [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Boat [Member] | Controls, Rigging, and Propellers [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Boat [Member] | Sterndrive Engine [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Boat [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Boat [Member] | Advanced Systems Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Boat [Member] | Engine Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Boat [Member] | Aluminum Freshwater Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	488.5	556.6
Boat [Member] | Recreational Fiberglass Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	427.1	438.8
Boat [Member] | Saltwater Fishing Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	298.7	316.6
Boat [Member] | Business Acceleration [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	40.5	24.1
Boat [Member] | Marine Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,615.3	1,423.2
Propulsion [Member] | Boat Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member] | Outboard Engines [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,471.8	1,306.7
Propulsion [Member] | Controls, Rigging, and Propellers [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	258.4	213.6
Propulsion [Member] | Sterndrive Engine [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	148.2	172.6
Propulsion [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member] | Advanced Systems Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member] | Engine Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member] | Aluminum Freshwater Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member] | Recreational Fiberglass Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member] | Saltwater Fishing Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member] | Business Acceleration [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Propulsion [Member] | Marine Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(263.1)	(269.7)
Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,481.9	1,350.9
Parts and Accessories [Member] | Boat Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Parts and Accessories [Member] | Outboard Engines [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Parts and Accessories [Member] | Controls, Rigging, and Propellers [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Parts and Accessories [Member] | Sterndrive Engine [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Parts and Accessories [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	664.2	571.8
Parts and Accessories [Member] | Advanced Systems Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	412.1	413
Parts and Accessories [Member] | Engine Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	432.5	395.3
Parts and Accessories [Member] | Aluminum Freshwater Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Parts and Accessories [Member] | Recreational Fiberglass Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Parts and Accessories [Member] | Saltwater Fishing Boats [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Parts and Accessories [Member] | Business Acceleration [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Parts and Accessories [Member] | Marine Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(26.9)	(29.2)
United States [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3,256.3	3,139.6
United States [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	957.5	1,009
United States [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,207.8	1,152.1
United States [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,091	978.5
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	564.2	526.5
Europe [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	128.5	115.6
Europe [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	255.2	235.1
Europe [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	180.5	175.8
Asia-Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	386	277.8
Asia-Pacific [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	27.7	31.2
Asia-Pacific [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	240.4	143.2
Asia-Pacific [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	117.9	103.4
Canada [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	261.8	297.6
Canada [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	114.2	154.8
Canada [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	66.7	62.7
Canada [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	80.9	80.1
Rest of World [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	169.2	165.8
Rest of World [Member] | Boat [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	22.4	23.7
Rest of World [Member] | Propulsion [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	108.3	99.8
Rest of World [Member] | Parts and Accessories [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 38.5	$ 42.3

Revenue Recognition Performance

Revenue Recognition Performance Obligations (Details) $ in Millions	Dec. 31, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 106.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	30.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 75.3

Discontinued Operations (Detail

Discontinued Operations (Details) - USD ($)	May 06, 2019	Dec. 31, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018		Jun. 27, 2019
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Net Sales										$ 0		$ 448,300,000		$ 1,038,300,000
Cost of Sales										0		334,600,000		764,300,000
Selling, General and Administrative Expense										500,000	[1]	113,300,000	[2]	206,100,000	[1],[2]
Research and Development Expense										0		12,600,000		27,400,000
Restructuring, Exit and Impairment Charges										0		138,300,000	[3]	26,100,000
Other (Income), Net										0		(300,000)		(100,000)
(Loss) Earnings from Discontinued Operations Before Income Taxes										(500,000)	[1]	(150,200,000)	[2],[3]	14,500,000	[1],[2]
Income Tax Provision (Benefit)										0		(32,700,000)		2,600,000
(Loss) Earnings from Discontinued Operations, Net of Tax										(500,000)	[1]	(117,500,000)	[2],[3]	11,900,000	[1],[2]
Gain on disposal of discontinued operations, net of tax										(1,500,000)	[4]	(43,900,000)	[4]	0
Net (Loss) Earnings from Discontinued Operations, Net of Tax		$ (900,000)	$ 1,100,000	$ (500,000)	$ (1,700,000)	$ (7,900,000)	$ (6,400,000)	$ (34,600,000)	$ (112,500,000)	(2,000,000)		(161,400,000)		11,900,000
Tax Benefit of Loss from Disposal of Discontinued Operations										500,000		7,400,000
Goodwill, Impairment Loss										0		0		0
Loss from Disposal of Discontinued Operations, Pre-Tax										2,000,000		51,300,000
Assets Held for Sale		0				0				0		0
Disposal Group, Including Discontinued Operation, Liabilities		0				0				0		0
Fitness [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Cash Proceeds	$ 466,200,000
Cash Divested from Divestiture of Businesses			3,300,000
Working Capital Settlement from Divestiture of Businesses			$ 7,500,000
Cash True Up from Divestiture of Businesses		5,400,000
Retained Assets		4,600,000				16,400,000				4,600,000		16,400,000				$ 26,400,000
Retained Liabilities		12,700,000				$ 30,500,000				12,700,000		30,500,000				$ 45,100,000
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Gain on disposal of discontinued operations, net of tax	$ (45,400,000)
Goodwill, Impairment Loss, Net of Tax												103,000,000
Goodwill, Impairment Loss												137,200,000
Business Exit Costs												$ 16,500,000		19,300,000
Loss from Disposal of Discontinued Operations, Pre-Tax										$ (500,000)
Fitness [Member] | Retained Liability [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash Divested from Divestiture of Businesses		$ 1,200,000
Bowling [Member]
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Tax Benefit of Loss from Disposal of Discontinued Operations														2,200,000
Loss from Disposal of Discontinued Operations, Pre-Tax														$ 3,000,000
[1]	(B) The Company recorded $(0.5) million for the year ended December 31, 2020, primarily resulting from adjustments in certain liabilities as part of the sale of the Fitness business. During 2018, the Company recorded adjustments to certain liabilities that were retained as part of the sale of the bowling businesses. As a result, Earnings (loss) from discontinued operations, net of tax, includes a gain of $3.0 million ($2.2 million after tax) for the year ended December 31, 2018.
[2]	(A) The Company recorded $16.5 million and $19.3 million for the year ended December 31, 2019 and December 31, 2018, respectively, of net costs incurred in connection with the sale of its Fitness business
[3]	(C) In the first quarter of 2019, the Company re-evaluated the fair value of the Fitness reporting unit and determined the fair value of the business was less than its carrying value. As a result, (Loss) earnings from discontin ued operations, net of tax, includes a $137.2 million ($103.0 million after tax) goodwill impairment charge for the year ended December 31, 2019.
[4]	(D) The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2020 includes a pre-tax loss o f $2.0 million and a net tax benefit of $0.5 million. The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2019 includes a pre-tax loss of $51.3 million and a net tax benefit of $7.4 million.

Restructuring, Exit, Impairme_3

Restructuring, Exit, Impairment and Integration Activities (Details) - USD ($) $ in Millions		3 Months Ended																12 Months Ended
		Dec. 31, 2020		Sep. 26, 2020	[1]	Jun. 27, 2020	[1]	Mar. 28, 2020		Dec. 31, 2019		Sep. 28, 2019	[1]	Jun. 29, 2019	[1]	Mar. 30, 2019		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges		$ (0.2)	[1]	$ 1.8		$ 2.1		$ 0.4	[1]	$ 2.8	[1]	$ 7.4		$ 5.4		$ 3.2	[1]	$ 4.1		$ 18.8	[1]	$ 54.8
Restructuring Reserve [Roll Forward]
Accrued Charges - Beginning								8.8								16.1		8.8		16.1		3.7
Restructuring, Exit and Impairment Charges		(0.2)	[1]	$ 1.8		$ 2.1		0.4	[1]	2.8	[1]	$ 7.4		$ 5.4		3.2	[1]	4.1		18.8	[1]	54.8
Non-Cash Charges																		(0.5)		(3.5)		(26.6)
Payments	[2]																	(9.2)		(22.6)		(15.8)
Accrued Charges - Ending		3.2	[3]							8.8								3.2	[3]	8.8		16.1
Boat [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		1.3		9.7		54.1
Restructuring Reserve [Roll Forward]
Accrued Charges - Beginning								6.1								15.4		6.1		15.4		3.7
Restructuring, Exit and Impairment Charges																		1.3		9.7		54.1
Non-Cash Charges																		(0.5)		(3.5)		(26.6)
Payments	[2]																	(5.7)		(15.5)		(15.8)
Accrued Charges - Ending		1.2	[3]							6.1								1.2	[3]	6.1		15.4
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		2		4.5		0.7
Restructuring Reserve [Roll Forward]
Accrued Charges - Beginning								1.5								0.7		1.5		0.7		0
Restructuring, Exit and Impairment Charges																		2		4.5		0.7
Non-Cash Charges																		0		0		0
Payments																		(1.8)	[2]	(3.7)	[2]	0
Accrued Charges - Ending		1.7	[3]							1.5								1.7	[3]	1.5		0.7
Parts and Accessories [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		0.8		4.6
Restructuring Reserve [Roll Forward]
Accrued Charges - Beginning								$ 1.2								$ 0		1.2		0
Restructuring, Exit and Impairment Charges																		0.8		4.6
Non-Cash Charges																		0		0
Payments	[2]																	(1.7)		(3.4)
Accrued Charges - Ending		$ 0.3	[3]							$ 1.2								0.3	[3]	1.2		0
Restructuring and Exit Activities [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		3		11.7		9.5
Current Asset Write-Downs																		0		0.5		18.9
Professional Fees																		0.1		3.1		8
Other																		0.5		0.5		10.7	[4]
Asset Disposition and Impairment Actions [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		0.5		3		12.7
Valuation Allowance (Reversal) on Disposal Group																		0		0		(5)
Actions Initiated in 2020 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		3.7
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																		3.7
Actions Initiated in 2020 [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		1.4
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																		1.4
Actions Initiated in 2020 [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		1.8
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																		1.8
Actions Initiated in 2020 [Member] | Parts and Accessories [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		0.5
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																		0.5
Actions Initiated in 2020 [Member] | Restructuring and Exit Activities [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		2.7
Other																		0.5
Actions Initiated in 2020 [Member] | Restructuring and Exit Activities [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		0.4
Other																		0.5
Actions Initiated in 2020 [Member] | Restructuring and Exit Activities [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		1.8
Other																		0
Actions Initiated in 2020 [Member] | Restructuring and Exit Activities [Member] | Parts and Accessories [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		0.5
Other																		0
Actions Initiated in 2020 [Member] | Asset Disposition and Impairment Actions [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		0.5
Actions Initiated in 2020 [Member] | Asset Disposition and Impairment Actions [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		0.5
Actions Initiated in 2020 [Member] | Asset Disposition and Impairment Actions [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		0
Actions Initiated in 2020 [Member] | Asset Disposition and Impairment Actions [Member] | Parts and Accessories [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		0
Actions Initiated in 2019 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		0.4		18.8
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																		0.4		18.8
Actions Initiated in 2019 [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		0.1		9.7
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																		0.1		9.7
Actions Initiated in 2019 [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		0.2		4.5
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																		0.2		4.5
Actions Initiated in 2019 [Member] | Parts and Accessories [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																		0.3		4.6
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																		0.3		4.6
Actions Initiated in 2019 [Member] | Restructuring and Exit Activities [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		0.3		11.7
Current Asset Write-Downs																		0		0.5
Professional Fees																		0.1		3.1
Other																		0		0.5
Actions Initiated in 2019 [Member] | Restructuring and Exit Activities [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		(0.1)		4
Current Asset Write-Downs																		0		0.5
Professional Fees																		0		1.7
Other																		0		0.5
Actions Initiated in 2019 [Member] | Restructuring and Exit Activities [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		0.1		3.1
Current Asset Write-Downs																		0		0
Professional Fees																		0.1		1.4
Other																		0		0
Actions Initiated in 2019 [Member] | Restructuring and Exit Activities [Member] | Parts and Accessories [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																		0.3		4.6
Current Asset Write-Downs																		0		0
Professional Fees																		0		0
Other																		0		0
Actions Initiated in 2019 [Member] | Asset Disposition and Impairment Actions [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		0		3
Actions Initiated in 2019 [Member] | Asset Disposition and Impairment Actions [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		0		3
Actions Initiated in 2019 [Member] | Asset Disposition and Impairment Actions [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		0		0
Actions Initiated in 2019 [Member] | Asset Disposition and Impairment Actions [Member] | Parts and Accessories [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																		$ 0		$ 0
Actions Initiated in 2018 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																						51.6
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																						51.6
Actions Initiated in 2018 [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																						50.9
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																						50.9
Actions Initiated in 2018 [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																						0.7
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																						0.7
Actions Initiated in 2018 [Member] | Restructuring and Exit Activities [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																						5.4
Current Asset Write-Downs																						18.9
Professional Fees																						3.9
Other																						10.7
Actions Initiated in 2018 [Member] | Restructuring and Exit Activities [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																						4.7
Current Asset Write-Downs																						18.9
Professional Fees																						3.9
Other																						10.7
Actions Initiated in 2018 [Member] | Restructuring and Exit Activities [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																						0.7
Current Asset Write-Downs																						0
Professional Fees																						0
Other																						0
Actions Initiated in 2018 [Member] | Asset Disposition and Impairment Actions [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																						12.7
Actions Initiated in 2018 [Member] | Asset Disposition and Impairment Actions [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																						12.7
Actions Initiated in 2018 [Member] | Asset Disposition and Impairment Actions [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Definite-Lived and Other Asset Impairments																						0
Actions Initiated in 2017 [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Exit and Impairment Charges																						3.2
Restructuring Reserve [Roll Forward]
Restructuring, Exit and Impairment Charges																						3.2
Actions Initiated in 2017 [Member] | Restructuring and Exit Activities [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Employee Termination and Other Benefits																						4.1
Professional Fees																						4.1
Actions Initiated in 2017 [Member] | Asset Disposition and Impairment Actions [Member] | Boat [Member]
Restructuring Cost and Reserve [Line Items]
Valuation Allowance (Reversal) on Disposal Group																						$ (5)
[1]	(C) Restructuring, exit, integration and impairment charges are discussed in Note 4 – Restructuring, Exit and Impairment Activities.
[2]	(A) Cash payments may include payments related to prior period charges.
[3]	(B) The accrued charges as of December 31, 2020 are expected to be paid during 2021.
[4]	(A) The charges in 2018 primarily relate to warranty adjustments in connection with the wind-down of Sport Yacht & Yachts.

Acquisitions (Details)

Acquisitions (Details) - USD ($) $ in Millions		May 21, 2019	Aug. 09, 2018	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 64.1
Debt Instrument, Face Amount			$ 800
Goodwill							$ 417.7	$ 415	$ 377.3
Customer Relationships [Member]
Business Acquisition [Line Items]
Useful Life							15 years	15 years
Freedom Boat Club [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 29.2
Goodwill		27.3
Purchase Price Adjustment							$ 0.9
Freedom Boat Club [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Trade Names		13.2
Freedom Boat Club [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Customer Relationships		$ 11.1
Useful Life		10 years
Freedom Boat Club [Member] | Franchise Rights [Member]
Business Acquisition [Line Items]
Customer Relationships		$ 4.9
Useful Life		15 years
Power Products [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred			909.6
Accounts and Notes Receivable			38.3
Inventory			64.3
Goodwill	[1],[2]		355.5
Trade Names			111
Property, Plant and Equipment			10.6
Other Assets			5.6
Total Assets Acquired			1,015.3
Accounts Payable	[3]		27.3
Accrued Expenses	[2],[3]		22
Deferred Tax Liabilities	[2]		56.4
Total Liabilities Assumed			105.7
Net Cash Consideration Paid	[2]		909.6
Purchase Price Adjustment				$ 3.9	$ 3	$ 4.4
Pro Forma Net Sales									4,271.1
Pro Forma Operating Earnings									362.8
Pro Forma Net Earnings									$ 239.8
Pro Forma Effective Income Tax Rate									17.20%
Power Products [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Customer Relationships			$ 430
Power Products [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Useful Life			15 years
Selling, General and Administrative Expenses [Member] | Freedom Boat Club [Member]
Business Acquisition [Line Items]
Transaction Costs								$ 2.5
[1]	(A) The goodwill recorded for the acquisition of Power Products is partially deductible for tax purposes.
[2]	(C) Includes $3.9 million of purchase accounting adjustments in the third quarter of 2019 primarily related to deferred taxes.
[3]	(B) Includes $4.4 million and $3.0 million of purchase accounting adjustments in the first and second quarters of 2019, respectively, primarily related to contingency reserves.

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Millions	3 Months Ended									12 Months Ended
	Dec. 31, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	[1]	Mar. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Net Sales	$ 1,161.1	$ 1,233.1	$ 987.8	$ 965.5	$ 917.6	$ 976.6	$ 1,163.5		$ 1,050.7	$ 4,347.5	$ 4,108.4	$ 4,120.9
Operating Earnings (Loss)										539.3	471	355.5
Total Assets	3,770.6				3,564.4					3,770.6	3,564.4
Depreciation										121.5	107.1	100
Amortization										31.9	31.6	24
Capital Expenditures										182.4	232.6	180.2
Research & Development Expense										125.9	121.6	121.5
Net property	863.6				796.4					863.6	796.4
United States [Member]
Segment Reporting Information [Line Items]
Net Sales										2,998	2,871.1	2,918
Net property	774.2				714.6					774.2	714.6
International [Member]
Segment Reporting Information [Line Items]
Net Sales										1,349.5	1,237.3	1,202.9
Net property	65.1				63					65.1	63
Corporate/Other [Member]
Segment Reporting Information [Line Items]
Net Sales										0	0	0
Net property	24.3				18.8					24.3	18.8
Propulsion [Member]
Segment Reporting Information [Line Items]
Net Sales										1,878.4	1,692.9	1,759.3
Operating Earnings (Loss)										285.5	240.3	243.8
Total Assets	962.4				1,002.8					962.4	1,002.8
Depreciation										72	62.9	58.2
Amortization										0	0	0
Capital Expenditures										113.7	157.2	109.2
Research & Development Expense										85.4	84.6	85.1
Parts and Accessories [Member]
Segment Reporting Information [Line Items]
Net Sales										1,508.8	1,380.1	1,234.3
Operating Earnings (Loss)										275.4	237.5	188
Total Assets	1,500.6				1,519					1,500.6	1,519
Depreciation										14.3	13.3	11.1
Amortization										30.1	30.3	23
Capital Expenditures										21.1	23.4	17.1
Research & Development Expense										19.8	18.8	10.7
Boat [Member]
Segment Reporting Information [Line Items]
Net Sales										1,250.3	1,334.3	1,471.3
Operating Earnings (Loss)										70.2	76.2	9.1
Total Assets	488.1				473					488.1	473
Depreciation										30.7	28.2	26.7
Amortization										1.8	1.3	1
Capital Expenditures										37.6	47	48.5
Research & Development Expense										20.7	18.2	25.7
Corporate/Other [Member]
Segment Reporting Information [Line Items]
Net Sales										0	0	0
Operating Earnings (Loss)										(91.8)	(83)	(85.4)
Total Assets	819.5				569.6					819.5	569.6
Depreciation										4.5	2.7	4
Amortization										0	0	0
Capital Expenditures										10	5	5.4
Research & Development Expense										0	0	0
Marine Eliminations [Member]
Segment Reporting Information [Line Items]
Net Sales										(290)	(298.9)	(344)
Operating Earnings (Loss)										0	0	$ 0
Total Assets	$ 0				$ 0					$ 0	$ 0
[1]	(A) In the second quarter of 2018, the Company announced its intention to wind down Sport Yacht & Yachts (SYY) operations. During the second quarter and the full-year of 2019, SYY had Net sales of $(0.7) million.

Fair Value Measurements (Detail

Fair Value Measurements (Details) - Fair Value, Recurring [Member] - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Assets:
Cash Equivalents	$ 19.3	$ 0.3
Short-Term Investments in Marketable Securities	56.7	0.8
Restricted Cash	10.7	11.6
Derivatives	2.2	4.2
Total Assets	88.9	16.9
Liabilities:
Derivatives	12	3.2
Deferred Compensation	19.8	20
Total Liabilities at Fair Value	31.8	23.2
Liabilities Measured at Net Asset Value	10.7	8.5
Total Liabilities	42.5	31.7
Fair Value, Inputs, Level 1 [Member]
Assets:
Cash Equivalents	19.3	0.3
Short-Term Investments in Marketable Securities	56.7	0.8
Restricted Cash	10.7	11.6
Derivatives	0	0
Total Assets	86.7	12.7
Liabilities:
Derivatives	0	0
Deferred Compensation	1.1	1.2
Total Liabilities at Fair Value	1.1	1.2
Fair Value, Inputs, Level 2 [Member]
Assets:
Cash Equivalents	0	0
Short-Term Investments in Marketable Securities	0	0
Restricted Cash	0	0
Derivatives	2.2	4.2
Total Assets	2.2	4.2
Liabilities:
Derivatives	12	3.2
Deferred Compensation	18.7	18.8
Total Liabilities at Fair Value	$ 30.7	$ 22

Financing Receivables (Details)

Financing Receivables (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Receivables [Abstract]
Total Financing Receivables	$ 6.5	$ 8.8

Investments (Details)

Investments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investment [Line Items]
Due to Affiliate	$ 44,700,000	$ 27,300,000
Related Party Transaction, Purchases from Related Party	$ 91,000,000	$ 102,600,000	$ 117,100,000
Gain (Loss) on Sale of Equity Investments			$ 2,300,000
Bella [Member]
Investment [Line Items]
Percentage of Ownership in Bella			36.00%
TMC [Member]
Investment [Line Items]
Percentage of Ownership in Bella	50.00%

Financing Joint Ventures (Detai

Financing Joint Ventures (Details) - USD ($)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Maximum loss exposure relating to joint venture [Abstract]
Income (Loss) from Equity Method Investments		$ 4,500,000	$ 7,300,000	$ 7,700,000
Other Operating Activities, Cash Flow Statement		19,300,000	4,800,000	3,100,000
Payments for (Proceeds from) Investments		4,000,000	(2,400,000)	8,800,000
BAC [Member]
Maximum loss exposure relating to joint venture [Abstract]
Investment		12,000,000	18,800,000
Repurchase and Recourse Obligations	[1]	37,000,000	36,500,000
Liabilities	[2]	(1,000,000)	(1,700,000)
Total Maximum Loss Exposure		$ 48,000,000	53,600,000
Percent of Ownership Held by BFS in BAC Joint Venture		49.00%
Percentage of Ownership Held by Third Party in Joint Venture		51.00%
Amount of Secured Borrowing Facility Funded for Joint Venture		$ 1,000,000,000
Total Investment of Subsidiary in Joint Venture		12,000,000	18,800,000
Income (Loss) from Equity Method Investments		4,600,000	6,900,000	6,400,000
Other Operating Activities, Cash Flow Statement		4,300,000	7,600,000	6,300,000
Payments for (Proceeds from) Investments		(7,200,000)	(2,200,000)	3,800,000
(Proceeds from) [Member] | BAC [Member]
Maximum loss exposure relating to joint venture [Abstract]
Payments for (Proceeds from) Investments		(10,300,000)	(7,900,000)	(8,200,000)
Payments for [Member] | BAC [Member]
Maximum loss exposure relating to joint venture [Abstract]
Payments for (Proceeds from) Investments		$ 3,100,000	$ 5,700,000	$ 12,000,000
[1]	Repurchase and recourse obligations are off-balance sheet obligations provided by the Company for the Propulsion, Parts and Accessories and Boat segments, respectively, and are included within the Maximum Potential Obligations disclosed in Note 13 – Commitments and Contingencies . Repurchase and recourse obligations include a North American repurchase agreement with WFCDF and could be reduced by repurchase activity occurring under other similar agreements with WFCDF and affiliates. The Company's risk under these repurchase arrangements is partially mitigated by the value of the products repurchased as part of the transaction. Amounts above exclude any potential recoveries from the value of the repurchased product.
[2]	Represents accrued amounts for potential losses related to recourse exposure and the Company's expected losses on obligations to repurchase products, after giving effect to proceeds anticipated to be received from the resale of these products to alternative dealers.

Goodwill and Other Intangible_2

Goodwill and Other Intangibles (Details 1) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 415,000,000	$ 377,300,000
Acquisitions	0	26,000,000
Adjustments	2,700,000	11,700,000
Goodwill, Ending Balance	417,700,000	415,000,000
Goodwill, Impaired, Accumulated Impairment Loss	0	0
Boat [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	28,600,000	2,200,000
Acquisitions	0	26,000,000
Adjustments	1,300,000	400,000
Goodwill, Ending Balance	29,900,000	28,600,000
Parts and Accessories [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	371,900,000	360,500,000
Acquisitions	0	0
Adjustments	600,000	11,400,000
Goodwill, Ending Balance	372,500,000	371,900,000
Propulsion [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	14,500,000	14,600,000
Acquisitions	0	0
Adjustments	800,000	(100,000)
Goodwill, Ending Balance	$ 15,300,000	$ 14,500,000
Customer Relationships [Member]
Goodwill [Roll Forward]
Finite-Lived Intangible Asset, Weighted Average Remaining Useful Life	13 years 2 months 12 days
Other
Goodwill [Roll Forward]
Finite-Lived Intangible Asset, Weighted Average Remaining Useful Life	10 years 8 months 12 days

Goodwill and Other Intangible_3

Goodwill and Other Intangibles (Details 2) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Amount		$ 872.4	$ 871.2
Accumulated Amortization		(320.1)	(287.7)
Amortization Expense for Intangibles		31.9	31.6	$ 14.8
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
2019		31.9
2020		31.6
2021		31.1
2022		31.1
2023		31.1
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount		166.2	165.8
Accumulated Amortization		0	0
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	[1]	687.7	687
Accumulated Amortization	[1]	(306.4)	(274.6)
Other
Finite-Lived Intangible Assets [Line Items]
Gross Amount	[1]	18.5	18.4
Accumulated Amortization	[1]	(13.7)	(13.1)
Boat [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount		252.6	252.6
Accumulated Amortization		(207.2)	(205.3)
Propulsion [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount		1	1
Accumulated Amortization		(0.5)	(0.5)
Parts and Accessories [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount		618.8	617.6
Accumulated Amortization		$ (112.4)	$ (81.9)
[1]	(A) The weighted average remaining amortization period for Customer relationships and Other intangibles assets were 12.1 years and 11.2 years, respectively, as of December 31, 2020

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability			$ (5.1)
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount			7
Income Tax Benefit, Due to Pension Contribution			12.1
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
United States	$ 354.5	$ 10.1	237.3
Foreign	118.2	100.6	73.4
Earnings Before Income Taxes	472.7	110.7	310.7
Current tax expense (benefit) [Abstract]
U.S. Federal	66.9	94.5	(2.3)
State and Local	9.8	6.3	5.7
Foreign	38.9	29.3	22.9
Total Current	115.6	130.1	26.3
Deferred tax expense (benefit) [Abstract]
U.S. Federal	(17.3)	(19.7)	30.5
State and Local	1.1	(29.5)	0.9
Foreign	(1.4)	(0.6)	(0.4)
Total Deferred	(17.6)	(49.8)	31
Income Tax Provision	98	80.3	$ 57.3
Deferred Tax Assets:
Loss Carryforwards	71.2	81.9
Tax Credit Carryforwards	51.1	71.8
Product Warranties	28.1	28.4
Sales Incentives and Discounts	21.9	25.9
Compensation and Benefits	20.9	10.5
Deferred Revenue	18.1	16.1
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	16.3	17.1
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	12	12
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits	11.7	10.9
Postretirement and Postemployment Benefits	11	11.5
Other	54.3	51.4
Gross Deferred Tax Assets	316.6	337.5
Valuation Allowance	(93.4)	(93.3)
Deferred Tax Assets	223.2	244.2
Deferred Tax Liabilities, Leasing Arrangements	(14.9)	(15.7)
Deferred Tax Liabilities:
Depreciation and Amortization	(48)	(85.5)
State and Local Income Taxes	(22.7)	(24.3)
Other	(6.3)	(5.3)
Deferred Tax Liabilities	(91.9)	(130.8)
Total Net Deferred Tax Assets	$ 131.3	$ 113.4

Income Taxes, Valuation Allowan

Income Taxes, Valuation Allowances and NOL Carryforwards (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 71.2
Tax Benefit of Loss Carryovers	71.2	$ 81.9
NOL Carryforwards which Expire	57
NOL Carryforwards which have an Unlimited Life	14.2
Valuation Allowance [Abstract]
Deferred Tax Assets, Valuation Allowance	(93.4)	$ (93.3)
Foreign Jurisdictions [Member]
Operating Loss Carryforwards [Line Items]
Tax Benefit of Loss Carryovers	33.2
Federal Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Tax Benefit of Loss Carryovers	1.7
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Tax Benefit of Loss Carryovers	36.3
United States [Member]
Valuation Allowance [Abstract]
Deferred Tax Assets, Valuation Allowance	(59.1)
Foreign Jurisdictions [Member]
Valuation Allowance [Abstract]
Deferred Tax Assets, Valuation Allowance	$ (34.3)

Income Taxes, Tax Credits and U

Income Taxes, Tax Credits and Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Gross Unrecognized Tax Benefits, Including Interest	$ 4.1	$ 3.9	$ 2.3
Reconciliation of the total amounts of unrecognized tax benefits [Roll Forward]
Balance at January 1	3.7	2.3	2.1
Gross Increases - Tax Positions Prior Periods	0.1	2	0.6
Gross Decreases - Tax Positions Prior Periods	0	(0.8)	(0.7)
Gross Increases - Current Period Tax Positions	0.6	0.4	0.4
Decreases - Settlements with Taxing Authorities	(0.1)	0	(0.1)
Reductions - Lapse of Statute of Limitations	(0.6)	(0.2)	0
Balance at December 31	3.7	3.7	$ 2.3
Possible Decrease in Unrecognized Tax Benefits in 2017	0.5
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	51.4
Tax Credit Carryforwards	51.1	$ 71.8
Tax Credit Carryforward, Expiration Date	51.4
General Business Credits [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	7.5
State Tax Credits [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	$ 43.9

Income Taxes, Income Tax Reconc

Income Taxes, Income Tax Reconciliation and Allocation of Income Tax Provision (Details) - USD ($)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax	[1]	$ 0	$ (292,800,000)	[2]	$ 0
Effective Income Tax Rate Reconciliation, Pension Settlement Charge, Income Tax Expense (Benefit)		(73,900,000)	(73,900,000)
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Income Tax Provision at 35 Percent		99,200,000	23,200,000		65,200,000
State and Local Income Taxes, Net of Federal Income Tax Effect		11,600,000	(3,600,000)		8,800,000
Deferred Tax Asset Valuation Allowance		(200,000)	(3,500,000)		4,000,000
Equity Compensation		(1,100,000)	(2,900,000)		(3,100,000)
Change in Estimates Related to Prior Years and Prior Years Amended Tax Return Filings		900,000	(2,900,000)		1,600,000
Federal and State Tax Credits		(12,000,000)	(11,600,000)		(11,600,000)
Taxes Related to Foreign Income, Net of Credits		700,000	(5,200,000)		(6,500,000)
Deferred Tax Reassessment		5,400,000	1,900,000		3,300,000
Tax Law Changes		0	0		(5,200,000)
FDII Deduction		(11,400,000)	(5,500,000)		(2,600,000)
Effective Income Tax Rate Reconciliation, Pension Settlement Charge, Gross		0	91,400,000		0
Other		4,900,000	(1,000,000)		3,400,000
Income Tax Provision		$ 98,000,000	$ 80,300,000		$ 57,300,000
Effective Tax Rate		20.70%	72.60%		18.50%
Income Tax Expense (Benefit), Intraperiod Tax Allocation [Abstract]
Continuing Operations		$ 98,000,000	$ 80,300,000		$ 57,300,000
Discontinued Operations		(500,000)	(40,100,000)		2,600,000
Total Tax Provision		$ 97,500,000	$ 40,200,000		$ 59,900,000
Federal Statutory Income Tax Rate		21.00%	21.00%		35.00%
Deferred Tax Liabilities, Undistributed Foreign Earnings		$ 0	$ 0
CHINA
Foreign Statutory Tax Rate		15.00%
POLAND
Foreign Statutory Tax Rate		19.00%
[1]	(A) These Accumulated other comprehensive loss components are included in the computation of net pension and other benefit costs. See Note 17 – Postretirement Benefits
[2]	(B) In 2019, the Company fully exited its qualified benefit pension plans and as a result, recorded a pre-tax settlement charge of $292.8 million. The income tax impact of the settlement action was a net provision of $17.5 million, consisting of an income tax benefit of $73.9 million associated with the pension settlement charge netted against an income tax charge of $91.4 million resulting from the release of disproportionate tax effects in Accumulated other comprehensive loss. Refer to Note 17 – Postretirement Benefits and Note 12 – Income Taxes in the Notes to Consolidated Financial Statements for further information on the pension settlement and related income tax consequences, respectively.

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loss Contingencies [Line Items]
Potential Cash Payments to Third Parties Recourse, Single Year Obligation		$ 30.9	$ 4.3
Amounts of Accounts Receivable Under Sale Arrangements, Current Portion		1.6	1.7
Potential Cash Payments To Third Parties To Repurchase Collateral Single Year Obligation		54.3	63.1
Amount of Accrual for Potential Losses Related to Repurchase Exposure		0.8	1.5
Letters of Credit Outstanding		6.1
Amount of Outstanding Surety Bonds		13.5
Amount of Restricted Cash Collateral Against Workers Comp Obligations		10.7	11.6	$ 9
Activity Related to Product Warranty Liabilities [Roll Forward]
Balance at Beginning of Period		117.6	116.8
Payments Made		(53.5)	(59.2)
Provisions/Additions for Contracts Issued/Sold		58	59
Aggregate Changes for Preexisting Warranties		0.9	7.6
Foreign Currency Translation		0.9	0
Other	[1]	(1.8)	5.9
Balance at End of Period		115.9	117.6
Activity Related to Extended Product Warranty Accrual [Roll Forward]
Balance at Beginning of Period		75.3	66.4
Extended Warranty Contracts Sold		29.5	24.3
Revenue Recognized on Existing Extended Warranty Contracts		(17.3)	(15.2)
Foreign Currency Translation		0.2	0.2
Balance at End of Period		87.4	75.3
Amount of Reserves for Environmental Liabilities		15.9	14.8
Amount of Environmental Provisions		1.6	0
Extended Product Warranty Accrual, Other Increase (Decrease)		(0.3)	(0.4)
Potential Cash Payments To Third Parties To Repurchase Collateral, Maximum Obligation		0	0
Indemnity - CPSC Fines Receivable		6.3
Amounts of Accounts Receivable Under Sale Arrangements, Long-Term Portion		0	0
Minimum [Member]
Activity Related to Extended Product Warranty Accrual [Roll Forward]
Loss Contingency, Estimate of Possible Loss		15.9
Maximum [Member]
Activity Related to Extended Product Warranty Accrual [Roll Forward]
Loss Contingency, Estimate of Possible Loss		38.2
Sport Yacht & Yachts and Fitness
Activity Related to Product Warranty Liabilities [Roll Forward]
Payments Made		(6.2)	(12.5)
Fitness [Member]
Activity Related to Product Warranty Liabilities [Roll Forward]
Standard Product Warranty Accrual, Warranty Liability Retained From Discontinued Operations			5.9
Trustee Bank [Domain]
Loss Contingencies [Line Items]
Amount of Restricted Cash Collateral Against Workers Comp Obligations		$ 9.1	$ 9.1
[1]	(A) The Company retained a $5.9 million warranty liability from the sale of its Fitness business in 2019. The warranty liability pertains to product field campaigns for certain Cybex products designed prior to the Cybex acquisition. The Company recorded $(1.8) million of adjustments as of December 31, 2020.

Financial Instruments Financial

Financial Instruments Financial Instruments, Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivatives Qualifying as Hedges, before Tax [Roll Forward]
Net Amount Recognized Into Earnings, Pretax		$ (6.8)	$ (10.2)	$ 3.4
Derivatives Qualifying as Hedges, Net of Tax [Roll Forward]
Beginning Balance, After-Tax		(5.5)
Net Change in Value of Outstanding Hedges, After-Tax	[1]	(4.7)	3.6	7.3
Net Amount Recognized Into Earnings, After-Tax	[2]	(5)	(7.2)	2.6
Ending Balance, After-Tax		(15.2)	(5.5)
Cash Flow Hedging [Member]
Derivatives Qualifying as Hedges, before Tax [Roll Forward]
Beginning Balance, Pretax		1.1	6.2
Net Change in Value of Outstanding Hedges, Pretax		(6.4)	5.1
Net Amount Recognized Into Earnings, Pretax		(6.8)	(10.2)
Ending Balance, Pretax		(12.1)	1.1	6.2
Derivatives Qualifying as Hedges, Net of Tax [Roll Forward]
Beginning Balance, After-Tax		(5.5)	(1.9)
Net Change in Value of Outstanding Hedges, After-Tax		(4.7)	3.6
Net Amount Recognized Into Earnings, After-Tax		(5)	(7.2)
Ending Balance, After-Tax		$ (15.2)	$ (5.5)	$ (1.9)
[1]	The tax effects for the year ended December 31, 2020 were $(1.2) million for foreign currency translation, $0.3 million for net actuarial losses arising during the period and $1.8 million for derivatives. The tax effects for the year ended December 31, 2019 were $(0.7) million for foreign currency translation, $5.1 million for net actuarial losses arising during the period and $(1.4) million for derivatives. The tax effects for the year ended December 31, 2018 were $1.5 million for foreign currency translation, $1.2 million for net actuarial losses arising during the period and $(3.3) million for derivatives.
[2]	See Note 19 – Comprehensive Income (Loss) for the tax effects for the years ended December 31, 2020, December 31, 2019 and December 31, 2018.

Financial Instruments (Details)

Financial Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 395.9	$ 332.5
Foreign Exchange Option [Member]
Derivative [Line Items]
Derivative, Notional Amount	0	17.8
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months	8.2
Forward-Starting Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	0
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months	(0.6)
Amount of Gain (Loss) Estimated to be Reclassified From Accumulated Other Comprehensive Loss to Cost of Sales or Interest Expense	1.4	$ (2)
Debentures Due 2023 [Member]
Derivative [Line Items]
Amount of Gain (Loss) Estimated to be Reclassified From Accumulated Other Comprehensive Loss to Cost of Sales or Interest Expense	2.5
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	0.7
Commodity Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	10
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months	0.1
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 0
Minimum [Member]
Derivative [Line Items]
Term of Derivative Instruments (in Months)		1 month
Maximum [Member]
Derivative [Line Items]
Term of Derivative Instruments (in Months)		18 months

Financial Instruments, Fair Val

Financial Instruments, Fair Values of Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Foreign Exchange Contracts [Member] | Prepaid Expenses and Other [Member] | Other Hedging Activity [Member]
Derivatives, Fair Value [Line Items]
Total Derivative Assets	$ 0	$ 0.1
Foreign Exchange Contracts [Member] | Accrued Expenses [Member] | Other Hedging Activity [Member]
Derivatives, Fair Value [Line Items]
Total Derivative Liabilities	0.7	0.9
Cash Flow Hedging [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total Derivative Assets	2.2	4.1
Total Derivative Liabilities	11.3	2.3
Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member] | Prepaid Expenses and Other [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total Derivative Assets	1.3	4.1
Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member] | Accrued Expenses [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total Derivative Liabilities	11.3	2.3
Cash Flow Hedging [Member] | Commodity Contracts [Member] | Prepaid Expenses and Other [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total Derivative Assets	0.9	0
Cash Flow Hedging [Member] | Commodity Contracts [Member] | Accrued Expenses [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total Derivative Liabilities	$ 0	$ 0

Financial Instruments, Consolid

Financial Instruments, Consolidated Statements of Operations, Effect of Derivative Instruments (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 26, 2020	Dec. 31, 2020	Dec. 31, 2019
Other Hedging Activity [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Earnings		$ 0.2	$ 1.1
Foreign Exchange Contracts [Member] | Cost of Sales [Member] | Other Hedging Activity [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Earnings		(0.8)	2.4
Foreign Exchange Contracts [Member] | Other Income, Net [Member] | Other Hedging Activity [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Earnings		1	(1.3)
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Accumulated Other Comprehensive Loss (Effective Portion)		(6.4)	5.1
Cash Flow Hedging [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Accumulated Other Comprehensive Loss (Effective Portion)		(6.4)	5.1
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Loss Into Earnings (Effective Portion)		6.8	10.2
Cash Flow Hedging [Member] | Interest Rate Contracts [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Accumulated Other Comprehensive Loss (Effective Portion)		0	0
Cash Flow Hedging [Member] | Interest Rate Contracts [Member] | Interest Expense [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Loss Into Earnings (Effective Portion)		(0.6)	(0.6)
Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Accumulated Other Comprehensive Loss (Effective Portion)		(7.3)	5.1
Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member] | Cost of Sales [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Loss Into Earnings (Effective Portion)		7.4	10.8
Cash Flow Hedging [Member] | Commodity Contracts [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Accumulated Other Comprehensive Loss (Effective Portion)		0.9	0
Cash Flow Hedging [Member] | Commodity Contracts [Member] | Cost of Sales [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Loss Into Earnings (Effective Portion)		$ 0	0
Fair Value Hedging [Member] | Interest Rate Contracts [Member] | Interest Expense [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) on Derivatives Recognized in Earnings	$ 0.7		$ 0.1

Financial Instruments, Fair V_2

Financial Instruments, Fair Value of Other Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value of the Company's Long-Term Debt Including Current Maturities	$ 1,062.3	$ 1,214.6
Long-Term Debt	$ 972.1	$ 1,131.6

Accrued Expenses Accrued Expe_2

Accrued Expenses Accrued Expenses (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Accrued Liabilities, Current [Abstract]
Compensation and Benefit Plans	$ 167.8	$ 118.9
Product Warranties	115.9	117.6
Sales Incentives and Discounts	113.6	116.9
Deferred Revenue and Customer Deposits	48.2	38.7
Current Operating Lease Liabilities	19.2	18.4
Legal reserves and contingencies	16.5	15.1
Accrued Insurance, Current	15.9	16.3
Derivatives	12	3.2
Interest	15.3	16.5
Accrual for Taxes Other than Income Taxes, Current	15.5	4.5
Environmental Reserves	6.9	6.6
Other	31.7	36.9
Total Accrued Expenses	$ 578.5	$ 509.6

Debt (Details)

Debt (Details) - USD ($) $ in Millions		Mar. 04, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Sep. 26, 2020	Jul. 03, 2019	Aug. 09, 2018
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 951.4	$ 1,109.3
Current Maturities of Long-term Debt			(43.1)	(41.3)
Long-Term Debt, Net			908.3	1,068
Debt Issuance Costs, Net				8.1
Maturities of Long-term Debt [Abstract]
2019			43.1
2020			36.4
2021			186.3
2022			0.5
2023			2
Thereafter			683.1
Total Long-Term Debt Including Current Maturities			951.4	1,109.3
Line of Credit Facility [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity			400
Letters of Credit Outstanding, Amount			6.1
Debt Instrument, Face Amount								$ 800
Proceeds from Issuance of Commercial Paper			175
Commercial Paper, Maximum Amount Utilized			$ 100
Debt Disclosure [Text Block]			Debt Long-term debt at December 31, 2020 and December 31, 2019 consisted of the following: (in millions) 2020 2019 Senior Notes, 6.375%, due 2049, net of debt issuances costs of $7.5 and $7.8 $ 222.5 $ 222.2 Senior Notes, 6.500% due 2048, net of debt issuance costs of $8.0 and $8.2 177.0 176.8 Notes, 7.125% due 2027, net of discount of $0.2 and $0.3 and debt issuance costs of $0.3 and $0.4 162.7 162.5 Term loan, floating rate due 2023, net of debt issuance costs of $0.6 and $1.3 (A) (C) 150.7 305.0 Senior Notes, 6.625%, due 2049, net of debt issuances costs of $4.2 and $4.4 120.8 120.6 Debentures, 7.375% due 2023, net of discount of $0.1 and $0.1 and debt issuance costs of $0.1 and $0.2 (B) 104.6 105.2 Loan with Fond du Lac County Economic Development Corporation, 2.0% due 2021, net of discount of $0.8 and $1.6 and debt issuance costs of $0.0 and $0.0 6.9 11.1 Notes, various up to 5.9% payable through 2028 6.2 5.9 Total long-term debt 951.4 1,109.3 Current maturities of long-term debt (43.1) (41.3) Long-term debt, net of current maturities $ 908.3 $ 1,068.0 (A) Beginning in December 2018, scheduled repayment of the 5-year term loan occurs each March, June, September and December equal to 2.50% of the aggregate principal amount of $350.0 million. The remaining principal amount is due August 2023. (B) Included in Debentures, 7.375% percent due 2023 at December 31, 2020 and December 31, 2019, are the aggregate fair values related to the fixed-to-floating interest rate swaps as discussed in Note 14 – Financial Instruments . (C) As of December 31, 2020 and December 31, 2019, the interest rate was 1.74% and 3.50%, respectively. Debt issuance costs paid for the year ended December 31, 2019 was $8.1 million. Debt issuance costs are reported in net proceeds from issuances of long-term debt within cash flows from financing activities on the Consolidated Statements of Cash Flows. There were no debt issuance costs paid during 2020. Scheduled maturities, net: (in millions) 2021 $ 43.1 2022 36.4 2023 186.3 2024 0.5 2025 2.0 Thereafter 683.1 Total long-term debt including current maturities $ 951.4 Activity Term Loan During 2020, the Company made principal repayments totaling $155.0 million of its 2023 floating rate term loan. The term loan was redeemed at 100 percent of the principal amount plus accrued interest, in accordance with the redemption provisions of the term loan. Senior Notes due 2021 In July 2019, the Company called $150.0 million of its 4.625% senior notes due 2021. The bonds were retired in August 2019 at par plus accrued interest, in accordance with the call provisions of the notes, and the associated interest rate swaps have been terminated. Refer to Note 14 – Financial Instruments for further information on the terminated interest rate swaps. Senior Notes due 2049 In March 2019, the Company issued an aggregate principal amount of $230.0 million of its 6.375% Senior Notes due April 2049 (6.375% Notes) in a public offering, which resulted in aggregate net proceeds to the Company of $222.0 million. Net proceeds from the offering of the 6.375% Notes were used to prepay all of the $150.0 million, 3-year tranche loan due 2021 and for general corporate purposes. Interest on the 6.375% Notes is due quarterly, commencing on April 15, 2019. The Company may, at its option, redeem the 6.375% Notes on or after April 15, 2024, either in whole or in part, at a redemption price equal to 100 percent of the principal amount plus any accrued and unpaid interest. Additionally, in the event of a change in control, the Company may be required to repurchase some or all of its 6.375% Notes at a price equal to 101 percent of the principal amount plus any accrued and unpaid interest. The 6.375% Notes are unsecured and do not contain subsidiary guarantees. Short-term Borrowing Arrangements The Company maintains an Amended and Restated Credit Agreement (Credit Facility). The Credit Facility provides for $400.0 million of borrowing capacity and is in effect through September 2024. The Credit Facility includes provisions to add up to $100.0 million of additional borrowing capacity and extend the facility for two additional one-year terms, subject to lender approval. In November 2019, the Credit Facility was amended to extend the maturity date from September 2023 to September 2024. The Company currently pays a facility fee of 15 basis points per annum. The facility fee per annum will be within a range of 12.5 to 35 basis points based on the Company's credit rating. Under the terms of the Credit Facility, the Company has two borrowing options: borrowing at a rate tied to adjusted LIBOR plus a spread of 110 basis points or a base rate plus a margin of 10.0 basis points. The rates are determined by the Company's credit ratings, with spreads ranging from 100 to 190 basis points for LIBOR rate borrowings and 0 to 90 basis points for base rate borrowings. The Company is required to maintain compliance with two financial covenants included in the Credit Facility: a minimum interest coverage ratio and a maximum leverage ratio. The minimum interest coverage ratio, as defined in the agreement, is not permitted to be less than 3.00 to 1.00. The maximum leverage ratio, as defined in the agreement, is not permitted to be more than 3.50 to 1.00. As of December 31, 2020, the Company was in compliance with the financial covenants in the Credit Facility. On March 23, 2020, the Company delivered a borrowing request to the administrative agent for the Credit Facility to increase the Company’s borrowings to $385.0 million, which was substantially all of the amount available for borrowing under the Credit Facility, net of outstanding letters of credit. The Company borrowed the amount described above under the Credit Facility as a precautionary action in order to increase its cash position and to enhance its liquidity and financial flexibility in response to the COVID-19 pandemic. During 2020 and 2019, gross borrowings under the Credit Facility totaled $610.0 million and $655.0 million, respectively. As of December 31, 2020 and December 31, 2019, there were no borrowings outstanding and available borrowing capacity totaled $395.0 million, net of $5.0 million of letters of credit outstanding under the Credit Facility. The maximum amount utilized under the Credit Facility during the years ended December 31, 2020 and December 31, 2019, including letters of credit outstanding under the Credit Facility were $397.1 million and $258.6 million, respectively. In December 2019, the Company entered into an unsecured commercial paper program (CP Program) pursuant to which the Company, may issue short-term, unsecured commercial paper notes (CP Notes). Amounts available under the CP Program may be borrowed, repaid and re-borrowed from time to time, with the aggregate principal amount of CP Notes outstanding under the CP Program at any time not to exceed the lower of $300.0 million or the available borrowing amount under the Credit Facility. The net proceeds of the issuances of the CP Notes are expected to be used for general corporate purposes. The maturities of the CP Notes will vary but may not exceed 397 days from the date of issue. The CP Notes will be sold under customary terms in the commercial paper market and will be issued at a discount from par or, alternatively, will be issued at par and bear varying interest rates on a fixed or floating basis. During 2020, borrowings under the CP Program totaled $175.0 million, all of which were repaid during the period. During 2020, the maximum amount utilized under the CP Program was $100.0 million. There were no borrowings under the CP program during 2019. Other Debt As provided under the terms of its loan agreement with the Fond du Lac County Economic Development Corporation, which is secured by the Company's property located in Fond du Lac, Wisconsin, up to a maximum 43 percent of the principal due annually can be forgiven if the Company achieves certain employment targets as outlined in the agreement. The amount of loan forgiveness is based on average employment levels at the end of the previous four quarters. Total loan forgiveness for 2020, 2019 and 2018 was $2.1 million or 43 percent of the principal due each year. General Provisions Pursuant to the indenture governing the 6.500% Notes, the 6.625% Notes and the 6.375% Notes, the Company and its restricted subsidiaries are subject to restrictions on the incurrence of debt secured by liens on principal property (as defined in the indenture) or shares of capital stock of such restricted subsidiaries, entering into sale and leaseback transactions in respect of principal property and mergers or consolidations with another entity or sales, transfers or leases of the Company's properties and assets substantially as an entirety to another person. Interest on the Company's 2023 and 2027 notes is due semi-annually. Interest on the Company's 6.500% Notes, 6.625% Notes, 6.375% Notes and the Term Loan is due quarterly. Unless otherwise noted, the Company's debt is unsecured and does not contain subsidiary guarantees. The Company may be required to repurchase some or all of the 6.500% Notes, 6.625% Notes and the 6.375% Notes in the event of a change of control, subject to certain circumstances, for an amount equal to 101 percent of the outstanding principal plus any accrued and unpaid interest.
Total Pension Plan Net Assets [Member] | Fair Value, Inputs, Level 3 [Member]
Line of Credit Facility [Abstract]
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount			$ 0
Nonqualified Plan [Member]
Line of Credit Facility [Abstract]
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation			$ 0	0
Commercial Paper [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity						$ 300
Maximum [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Covenant, Leverage Ratio			3.50
Minimum [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Covenant, Interest Coverage Ratio			3
6.375% Senior Notes due 2049 [Member]
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 222.5	$ 222.2
Interest Rate			6.375%	6.375%
Debt Issuance Costs, Net			$ 7.5	$ 7.8
Maturities of Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 222.5	222.2
Senior Notes Due 2021 [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Redemption Price, Triggering Event			101.00%
Debentures Due 2023 [Member]
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities	[1]		$ 104.6	$ 105.2
Interest Rate			7.375%	7.375%
Discount on Long-term Debt			$ 0.1	$ 0.1
Debt Issuance Costs, Net			0.1	0.2
Maturities of Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities	[1]		104.6	105.2
Loan With Fond Du Lac County Economic Development Corporation Due 2021 [Member]
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 6.9	$ 11.1
Interest Rate			2.00%	2.00%
Discount on Long-term Debt			$ 0.8	$ 1.6
Debt Issuance Costs, Net			0	0
Maturities of Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			6.9	11.1
Line of Credit Facility [Abstract]
Total Loan Forgiveness			$ 2.1	$ 2.1	$ 2.1
Annual Forgiveness Percent			43.00%	43.00%	43.00%
Loan With Fond Du Lac County Economic Development Corporation Due 2021 [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Annual Forgiveness Percent			43.00%
Notes Due 2027 [Member]
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 162.7	$ 162.5
Interest Rate			7.125%	7.125%
Discount on Long-term Debt			$ 0.2	$ 0.3
Debt Issuance Costs, Net			0.3	0.4
Maturities of Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			162.7	162.5
Notes Payable Through 2028 [Member]
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 6.2	5.9
Interest Rate			5.90%
Maturities of Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 6.2	5.9
Senior Notes Due 2048 [Member] [Member]
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 177	$ 176.8
Interest Rate			6.50%	6.50%
Debt Issuance Costs, Net			$ 8	$ 8.2
Maturities of Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 177	176.8
Line of Credit Facility [Abstract]
Debt Instrument, Redemption Price, Triggering Event			101.00%
Term Loan Due 2023 [Member]
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities	[2],[3]		$ 150.7	$ 305
Interest Rate			1.74%	3.50%
Debt Issuance Costs, Net			$ 0.6	$ 1.3
Maturities of Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities	[2],[3]		150.7	305
6.625% Senior Notes due 2049 [Member]
Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			$ 120.8	$ 120.6
Interest Rate			6.625%	6.625%
Debt Issuance Costs, Net			$ 4.2	$ 4.4
Maturities of Long-term Debt [Abstract]
Total Long-Term Debt Including Current Maturities			120.8	120.6
Line of Credit [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Remaining Borrowing Capacity			395
Letters of Credit Outstanding, Amount			5
Line of Credit Facility, Increase (Decrease), Other, Net			100
Proceeds from Lines of Credit			610	655
Line of Credit Facility, Maximum Amount Utilized			397.1	$ 258.6
Line of Credit Facility, Maximum Month-end Outstanding Amount			$ 385
Line of Credit Facility, Commitment Fee Percentage			0.15%
Line of Credit [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Commitment Fee Percentage			0.35%
Line of Credit [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Commitment Fee Percentage			0.125%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Interest Rate During Period			1.10%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Interest Rate During Period			1.90%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Interest Rate During Period			1.00%
Line of Credit [Member] | Base Rate [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Interest Rate During Period			0.10%
Line of Credit [Member] | Base Rate [Member] | Maximum [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Interest Rate During Period			0.90%
Line of Credit [Member] | Base Rate [Member] | Minimum [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Interest Rate During Period			0.00%
Senior Notes Due 2021 [Member] | Unsecured Debt [Member]
Line of Credit Facility [Abstract]
Senior Notes							$ 150
6.375% Senior Notes due 2049 [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Redemption Price, Triggering Event			101.00%
6.625% Senior Notes due 2049 [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Redemption Price, Triggering Event			101.00%
Senior Notes Due 2049 [Member] | Unsecured Debt [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Face Amount		$ 230
Proceeds from Issuance of Debt		$ 222
Term Loan Due 2023 [Member] | Unsecured Debt [Member]
Line of Credit Facility [Abstract]
Debt Instrument, Face Amount								$ 350
Repayments of Other Debt			$ 155
Debt Instrument, Redemption Price, Percentage			100.00%
[1]	Included in Debentures, 7.375% percent due 2023 at December 31, 2020 and December 31, 2019, are the aggregate fair values related to the fixed-to-floating interest rate swaps as discussed in Note 14 – Financial Instruments .
[2]	As of December 31, 2020 and December 31, 2019, the interest rate was 1.74% and 3.50%, respectively.
[3]	Beginning in December 2018, scheduled repayment of the 5-year term loan occurs each March, June, September and December equal to 2.50% of the aggregate principal amount of $350.0 million. The remaining principal amount is due August 2023.

Postretirement Benefits (Detail

Postretirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 26, 2020	[1]	Jun. 27, 2020	[1]	Mar. 28, 2020	Dec. 31, 2019	[1]	Sep. 28, 2019	[1]	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan Expense													$ 49.4		$ 44.1		$ 45.3
Settlement Loss	$ 0	$ 0.2		$ (1.3)		$ 0	$ (1.3)		$ 294.1		$ 0	$ 0	(1.1)	[1]	292.8	[1]	0
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Settlement Payments													0		673.9
Settlement Loss													(1.1)		292.8		0
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Settlement Payments													0		0
Settlement Loss													$ 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
[1]	(D) Pension settlement charges are discussed in Note 17 – Postretirement Benefits

Postretirement Benefits Schedul

Postretirement Benefits Schedule of Net Periodic Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 26, 2020	[1]	Jun. 27, 2020	[1]	Mar. 28, 2020	Dec. 31, 2019	[1]	Sep. 28, 2019	[1]	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Settlement Loss	$ 0	$ 0.2		$ (1.3)		$ 0	$ (1.3)		$ 294.1		$ 0	$ 0	$ (1.1)	[1]	$ 292.8	[1]	$ 0
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest Cost													0.7		6		22.6
Expected Return on Plan Assets													0		(7.4)		(24.8)
Amortization of Prior Service Credits													0		0		0
Amortization of Net Actuarial Losses													0.6		5.8		9.9
Settlement Loss													(1.1)		292.8		0
Net Pension and Other Benefit Costs													0.2		297.2		7.7
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest Cost													0.8		1.3		1.1
Expected Return on Plan Assets													0		0		0
Amortization of Prior Service Credits													(0.7)		(0.7)		(0.7)
Amortization of Net Actuarial Losses													0		0		0
Settlement Loss													0		0		0
Net Pension and Other Benefit Costs													$ 0.1		$ 0.6		$ 0.4
[1]	(D) Pension settlement charges are discussed in Note 17 – Postretirement Benefits

Postretirement Benefits Benefit

Postretirement Benefits Benefit Obligations, Plan Assets and Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018
Change in Plan Assets [Roll Forward]
Funded Percentage			38.00%
Pension Plans [Member]
Change in Benefit Obligations [Roll Forward]
Benefit Obligation at Previous December 31	$ 28.1		$ 652.8
Interest Cost	0.7		6	$ 22.6
Actuarial (Gains) Losses	2.1		77.3
Benefit Payments	(3.4)		(34.1)
Settlement Payments	0		(673.9)
Benefit Obligation at December 31	27.5		28.1	652.8
Change in Plan Assets [Roll Forward]
Fair Value of Plan Assets at Previous December 31	10.6		642
Actual Return on Plan Assets	0		70.8
Employer Contributions	3.4		7.9
Benefit Payments	(3.4)		(34.1)
Settlement Payments	0		(673.9)
Defined Benefit Plan, Plan Assets, Adjustments	(10.6)	[1]	(2.1)
Fair Value of Plan Assets at December 31	0		10.6	642
Funded Status at December 31	(27.5)		(17.5)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Asset, Defined Benefit Plan, Prepaid Expenses and Other	0		0
Assets, Defined Benefit Plan, Accounts and Notes Receivable	0		10.6
Assets for Plan Benefits, Defined Benefit Plan	0		10.6
Liability, Defined Benefit Plan, Current	3		3.5
Liability, Defined Benefit Plan, Noncurrent	24.5		24.6
Liability, Defined Benefit Plan	27.5		28.1
Other Postretirement Benefit Plans [Member]
Change in Benefit Obligations [Roll Forward]
Benefit Obligation at Previous December 31	33		34.3
Interest Cost	0.8		1.3	1.1
Actuarial (Gains) Losses	1.8		0.2
Benefit Payments	(2.4)		(2.8)
Settlement Payments	0		0
Benefit Obligation at December 31	33.2		33	34.3
Change in Plan Assets [Roll Forward]
Fair Value of Plan Assets at Previous December 31	0		0
Actual Return on Plan Assets	0		0
Employer Contributions	2.4		2.8
Benefit Payments	(2.4)		(2.8)
Settlement Payments	0		0
Defined Benefit Plan, Plan Assets, Adjustments	0		0
Fair Value of Plan Assets at December 31	0		0	$ 0
Funded Status at December 31	(33.2)		(33)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Asset, Defined Benefit Plan, Prepaid Expenses and Other	0		0
Assets, Defined Benefit Plan, Accounts and Notes Receivable	0		0
Assets for Plan Benefits, Defined Benefit Plan	0		0
Liability, Defined Benefit Plan, Current	3.1		3.6
Liability, Defined Benefit Plan, Noncurrent	30.1		29.4
Liability, Defined Benefit Plan	33.2		33
Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation	27.5		28.1
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation	$ 17.1		$ 17.5
[1]	(A) 2020 adjustment represents the overfunded position of the Company's salaried bargaining plans refunded during the year.

Postretirement Benefits Pretax

Postretirement Benefits Pretax Activity in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Prior Service Costs (Credits) [Abstract]
Amount Recognized as Component of Net Benefit Costs	[1]	$ (0.7)	$ (0.7)	$ (0.7)
Net Actuarial Losses [Abstract]
Amount Recognized as Component of Net Benefit Costs	[1]	$ 1.1	6.2	10.3
Percentage of Benefit Obligation or Market Value of Assets, Over Which Actuarial Gains and Losses are Subject to Amortization (in Hundredths)		10.00%
Pension Plans [Member]
Prior Service Costs (Credits) [Abstract]
Beginning Balance		$ 0	0
Amount Recognized as Component of Net Benefit Costs		0	0
Ending Balance		0	0	0
Net Actuarial Losses [Abstract]
Beginning Balance		12	298.3
Actuarial (Gains) Losses Arising During the Period		2.1	12.3
Amount Recognized as Component of Net Benefit Costs		(0.6)	(298.6)
Ending Balance		13.5	12	298.3
Total		13.5	12
Other Postretirement Benefit Plans [Member]
Prior Service Costs (Credits) [Abstract]
Beginning Balance		(8.1)	(8.8)
Amount Recognized as Component of Net Benefit Costs		0.7	0.7
Ending Balance		(7.4)	(8.1)	(8.8)
Net Actuarial Losses [Abstract]
Beginning Balance		(1.4)	(1.5)
Actuarial (Gains) Losses Arising During the Period		1.8	0.1
Amount Recognized as Component of Net Benefit Costs		0	0
Ending Balance		0.4	(1.4)	$ (1.5)
Total		$ (7)	$ (9.5)
[1]	(A) These Accumulated other comprehensive loss components are included in the computation of net pension and other benefit costs. See Note 17 – Postretirement Benefits

Postretirement Benefits Postret

Postretirement Benefits Postretirement Benefits - Additional Information (Details)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Health Care Cost Trend Rate for Next Year		5.30%	5.40%
Rate to Which the Cost Trend Rate is Assumed to Decline (the Ultimate Trend Rate)		4.50%	4.50%
Year Rate Reaches the Ultimate Trend Rate		2037	2037
Pension Plans [Member]
Defined Benefit Plan, Weighted Average Assumptions Used to Determine Pension and Other Postretirement Benefit Obligations [Abstract]
Discount Rate		2.00%	2.96%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount Rate	[1],[2]	2.55%	4.13%	3.27%
Long-Term Rate of Return on Plan Assets	[3]			4.25%
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan, Weighted Average Assumptions Used to Determine Pension and Other Postretirement Benefit Obligations [Abstract]
Discount Rate		2.13%	3.07%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount Rate	[1],[2]		3.85%	3.08%
[1]	(B) The Company uses a "spot rate approach" in the calculation of pension and postretirement interest costs to provide a more accurate measurement of interest costs. The spot rate approach applies separate discount rates for each projected benefit payment in the calculation of pension and postretirement interest costs.
[2]	The Company utilizes a yield curve analysis to calculate the discount rates used to determine pension and other postretirement benefit obligations. The yield curve analysis matches the cash flows of the Company's benefit obligations. The yield curve consisted of spot interest rates at half year increments for each of the next 30 years and was developed based on pricing and yield information for high quality corporate bonds rated Aa by either Moody's or Standard & Poor's, private placement bonds that are traded in reliance with Rule 144A and are at least two years from date of issuance, bonds with make-whole provisions and bonds issued by foreign corporations that are denominated in U.S. dollars, excluding callable bonds and bonds less than a minimum size and other filtering criteria. Additionally, the Company's yield curve methodology includes bonds having a yield that is greater than the regression mean yield curve as the Company believes this methodology represents an appropriate estimate of the rates at which the Company could effectively settle its pension obligations. For the Company's Salaried and Bargaining plans which were terminated during 2018, the discount rate was a blend of the December 31, 2018 yield curve rate associated with those participants electing annuity contracts to cover future benefit payments, and a lump-sum segment rate for those participants electing lump-sum benefit payments.
[3]	The Company evaluates its assumption regarding the estimated long-term rate of return on plan assets based on historical experience, future expectations of investment returns, asset allocations, investment strategies and views of investment professionals.

Postretirement Benefits Fair Va

Postretirement Benefits Fair Values of Trust's Pension Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan Expense	$ 49.4	$ 44.1	$ 45.3

Postretirement Benefits Contrib

Postretirement Benefits Contributions, Benefit Payments and Other (Details) $ in Millions	Dec. 31, 2020USD ($)
Pension Plans [Member]
Expected Benefit Payments [Abstract]
Company Contributions Expected to be Made in 2017	$ 3
2019	3
2020	2.8
2021	2.7
2022	2.3
2023	2.2
2024-2028	9
Other Postretirement Benefit Plans [Member]
Expected Benefit Payments [Abstract]
Company Contributions Expected to be Made in 2017	3.1
2019	3.1
2020	3
2021	2.8
2022	2.6
2023	2.5
2024-2028	$ 10.3

Stock Plans and Management Co_3

Stock Plans and Management Compensation (Details 1) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Available for Grant (in shares)	4,900
Non-Vested Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Age of Grantee		62 years
Share-Based Compensation Expense	$ 13,300	$ 10,900	$ 11,100
Share-Based Compensation Expense, Tax Benefit	3,300	2,700	2,800
Fair Value of Shares Vested During the Period	$ 6,600	$ 19,200	$ 4,400
Weighted Average Grant Date Fair Value	$ 57.31	$ 53.42
Awarded - Weighted Average Grant Date Fair Value	64.13	$ 49.12	$ 59.05
Forfeited - Weighted Average Grant Date Fair Value	57.72
Vested - Weighted Average Grant Date Fair Value	$ 58.58
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Outstanding at January 1	444
Awarded	272
Forfeited	(58)
Vested	(87)
Outstanding at December 31	571	444
Unrecognized Compensation Cost	$ 11,000
Non-Vested Stock Awards [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Age of Grantee plus Grantees Total Number of Years of Service	70 years
Stock Options and SAR's [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Age of Grantee		62 years
SARs/Stock Options Outstanding [Roll Forward]
Outstanding on January 1	119	343	594
Exercised	(97)	(224)	(248)
Forfeited	0	0	(3)
Outstanding on December 31	22	119	343
Exercisable and Vested on December 31	22	119	343
Weighted Average Exercise Price [Abstract]
Outstanding on January 1	$ 21.57	$ 16.04	$ 14.40
Exercised	21.16	13.13	12.10
Forfeited	11.08	5.86	17.06
Outstanding on December 31	23.41	21.57	16.04
Exercisable and Vested on December 31	$ 23.41	$ 21.57	$ 16.04
Aggregate Intrinsic Value [Abstract]
Exercised	$ 5,353	$ 10,494	$ 12,636
Outstanding on December 31	6,276	4,571	10,439
Exercisable and Vested on December 31	$ 6,276	4,571	10,439
Stock Options and SAR's [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Age of Grantee plus Grantees Total Number of Years of Service	70 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Expense	$ 13,800	6,400	5,600
Share-Based Compensation Expense, Tax Benefit	3,400	1,600	1,400
Fair Value of Shares Vested During the Period	$ 3,400	$ 4,900	$ 7,800
Weighted Average Grant Date Fair Value	$ 55.71	$ 53.55
Awarded - Weighted Average Grant Date Fair Value	63.13
Forfeited - Weighted Average Grant Date Fair Value	57.71
Vested - Weighted Average Grant Date Fair Value	$ 42.34
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Outstanding at January 1	88
Awarded	116
Forfeited	(37)
Vested	(45)
Outstanding at December 31	212	88
Unrecognized Compensation Cost	$ 4,000

Stock Plans and Management Co_4

Stock Plans and Management Compensation (Details 2) - Stock Options and SAR's [Member] - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 21.57	$ 23.41	$ 16.04	$ 14.40
Age of Grantee	62 years
$5.87 to $14.68 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding		600
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price		$ 14.68
Greater Than $14.68 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding		1,400
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price		$ 21.52
$23.79 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding		19,700
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price		$ 23.79

Stock Plans and Management Co_5

Stock Plans and Management Compensation (Details 3) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Excess Tax Benefit from Share-Based Compensation, Financing Activities	$ 1.1	$ 2.8	$ 3.1
Percentage of Premium Paid Out in Deferred Company Common Stock	20.00%
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Expense	$ 13.8	6.4	5.6
Share-Based Compensation Expense, Tax Benefit	3.4	1.6	1.4
Fair Value of Shares Vested During the Period	$ 3.4	$ 4.9	$ 7.8
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at January 1	88,000
Awarded Grants in Period	116,000
Forfeited	(37,000)
Vested	45,000
Outstanding at December 31	212,000	88,000
Weighted Average Grant Date Fair Value	$ 55.71	$ 53.55
Awarded - Weighted Average Grant Date Fair Value	63.13
Forfeited - Weighted Average Grant Date Fair Value	57.71
Vested - Weighted Average Grant Date Fair Value	$ 42.34
Unrecognized Compensation Cost	$ 4
Unrecognized Compensation Cost, Period for Recognition	1 year 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	2 years 10 months 24 days	2 years 10 months 24 days	2 years 10 months 24 days
Non-Vested Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Expense	$ 13.3	$ 10.9	$ 11.1
Share-Based Compensation Expense, Tax Benefit	3.3	2.7	2.8
Fair Value of Shares Vested During the Period	$ 6.6	$ 19.2	$ 4.4
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at January 1	444,000
Awarded Grants in Period	272,000
Forfeited	(58,000)
Vested	87,000
Outstanding at December 31	571,000	444,000
Weighted Average Grant Date Fair Value	$ 57.31	$ 53.42
Awarded - Weighted Average Grant Date Fair Value	64.13	$ 49.12	$ 59.05
Forfeited - Weighted Average Grant Date Fair Value	57.72
Vested - Weighted Average Grant Date Fair Value	$ 58.58
Unrecognized Compensation Cost	$ 11
Age of Grantee		62 years
Unrecognized Compensation Cost, Period for Recognition	1 year 4 months 24 days
Awards Vesting Period (in years)	3 years
Stock Options and SAR's [Member]
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Age of Grantee		62 years
Period for Stock Options and SARs to be Exercisable (in years)	10 years
Awards Vesting Period (in years)	4 years
Outstanding on December 31	1 year 1 month 6 days
Exercisable and Vested on December 31	1 year 1 month 6 days
Vested and Expected to Vest on December 31	1 year 1 month 6 days
Stock Options and SAR's [Member] | $23.79 [Member]
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding Options, Weighted Average Remaining Years of Contractual Life (in years)	1 year 1 month 6 days
Stock Options and SAR's [Member] | Greater Than $14.68 [Member]
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding Options, Weighted Average Remaining Years of Contractual Life (in years)	1 month 6 days
Stock Options and SAR's [Member] | $5.87 to $14.68 [Member]
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding Options, Weighted Average Remaining Years of Contractual Life (in years)	8 months 12 days
Stock Options and SAR's [Member] | $5.86 [Member]
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding Options, Weighted Average Remaining Years of Contractual Life (in years)	0 years
Share-based Payment Arrangement, Tranche Two [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Price at Grant Date (in dollars per share)	$ 61.91	$ 47.61	$ 57.19
Share-Based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Awarded Grants in Period	26,750	24,605	24,490
Share-based Payment Arrangement, Tranche One [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Price at Grant Date (in dollars per share)	$ 64.72	$ 49.64	$ 61.59
Risk-Free Interest Rate	1.40%	2.90%	2.40%
Dividend Yield	1.50%	1.70%	1.30%
Volatility Factor	46.60%	41.00%	38.90%

Comprehensive Income (Details)

Comprehensive Income (Details) - USD ($)		3 Months Ended																12 Months Ended
		Dec. 31, 2020	[2]	Sep. 26, 2020	[2]	Jun. 27, 2020	[2]	Mar. 28, 2020	[2]	Dec. 31, 2019	[2]	Sep. 28, 2019	[2]	Jun. 29, 2019	[2]	Mar. 30, 2019	[2]	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain on disposal of discontinued operations, net of tax																		$ (1,500,000)	[1]	$ (43,900,000)	[1]	$ 0
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest																		472,700,000		110,700,000		310,700,000
Income Tax Expense (Benefit)																		(98,000,000)		(80,300,000)		(57,300,000)
Net Earnings from Continuing Operations		$ 96,000,000		$ 136,800,000		$ 71,200,000		$ 70,700,000		$ 75,000,000		$ (232,900,000)		$ 112,100,000		$ 76,200,000		374,700,000		30,400,000	[2]	253,400,000
Prior Service Credits	[3]																	700,000		700,000		700,000
Net Actuarial Losses	[3]																	1,100,000		6,200,000		10,300,000
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax	[3]																	0		(292,800,000)	[4]	0
Defined Benefit Items, Earnings Before Income Taxes																		(400,000)		(298,300,000)		(9,600,000)
Defined Benefit Items, Income Tax Provision																		100,000		(15,000,000)	[4]	2,200,000
Defined Benefit Items, Earnings From Continuing Operations, Net of Tax																		(300,000)		(313,300,000)	[4]	(7,400,000)
Derivatives, Earnings Before Income Taxes																		6,800,000		10,200,000		(3,400,000)
Derivatives, Income Tax Provision																		(1,800,000)		(3,000,000)		800,000
Derivatives, Net Earnings From Continuing Operations	[5]																	5,000,000		7,200,000		(2,600,000)
Effective Income Tax Rate Reconciliation, Pension Settlement Charge, Net																		17,500,000
Effective Income Tax Rate Reconciliation, Pension Settlement Charge, Income Tax Expense (Benefit)																		(73,900,000)		(73,900,000)
Effective Income Tax Rate Reconciliation, Pension Settlement Charge, Gross																		0		91,400,000		0
Interest Expense [Member] | Interest Rate Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivatives, Earnings Before Income Taxes																		(600,000)		(600,000)		(900,000)
Cost of Sales [Member] | Foreign Exchange Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivatives, Earnings Before Income Taxes																		7,400,000		10,800,000		(2,500,000)
Cost of Sales [Member] | Commodity Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivatives, Earnings Before Income Taxes																		0		0		0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain on disposal of discontinued operations, net of tax																		0		(13,900,000)		0
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest																		0		(13,900,000)		0
Income Tax Expense (Benefit)																		0		100,000		0
Net Earnings from Continuing Operations																		$ 0		$ (13,800,000)		$ 0
[1]	(D) The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2020 includes a pre-tax loss o f $2.0 million and a net tax benefit of $0.5 million. The Loss on disposal of discontinued operations, net of tax for the year ended December 31, 2019 includes a pre-tax loss of $51.3 million and a net tax benefit of $7.4 million.
[2]	(E ) During the first, second, third and fourth quarter and full-year of 2020, Net earnings (loss) from continuing operations inclu des $6.9 million, $7.0 million, $6.5 million, $7.2 million and $27.6 million, res pectively, related to purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Net earnings (loss) from continuing operations also includes $(0.3) million, $0.4 million, $(0.7) million, $0.9 million and $0.3 million related to discrete tax items. During the first, second, third and fourth quarter and full-year ended 2019, Net earnings (loss) from continuing operations includ es $5.7 million, $9.0 million, $6.1 million, $8.2 million and $29.0 million, respec tively, related to SYY, purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Refer to Note 5 – Acquisitions for further details. Net earnings (loss) from continuing operations also includes $(1.7) million, $1.8 million, $(2.5) million, $(14.8) million and $(17.2) million related to discrete tax items. In the third quarter and full-year of 2019, the Company had a loss of extinguishment of debt, net of tax, of $0.8 million.
[3]	(A) These Accumulated other comprehensive loss components are included in the computation of net pension and other benefit costs. See Note 17 – Postretirement Benefits
[4]	(B) In 2019, the Company fully exited its qualified benefit pension plans and as a result, recorded a pre-tax settlement charge of $292.8 million. The income tax impact of the settlement action was a net provision of $17.5 million, consisting of an income tax benefit of $73.9 million associated with the pension settlement charge netted against an income tax charge of $91.4 million resulting from the release of disproportionate tax effects in Accumulated other comprehensive loss. Refer to Note 17 – Postretirement Benefits and Note 12 – Income Taxes in the Notes to Consolidated Financial Statements for further information on the pension settlement and related income tax consequences, respectively.
[5]	See Note 19 – Comprehensive Income (Loss) for the tax effects for the years ended December 31, 2020, December 31, 2019 and December 31, 2018.

Treasury Stock (Details)

Treasury Stock (Details) - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Equity [Abstract]
Payments for Repurchase of Common Stock	$ 118.3	$ 400	$ 75
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	116,500
Treasury Stock Activity [Roll Forward]
Balance at January 1	22,969	15,781	15,001
Compensation Plans and Other	(263)	(542)	(460)
Share Repurchases	1,957	7,730	1,240
Balance at December 31	24,663	22,969	15,781

Leases Leases Assets and Lease

Leases Leases Assets and Lease Liabilities (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease assets	$ 83,000,000	$ 83,200,000
Current Operating Lease Liabilities	19,200,000	18,400,000
Non-Current Operating Lease Liabilities	69,800,000	70,100,000
Total Lease Liabilities	89,000,000	88,500,000
Lessee, Lease, Description [Line Items]
Current Operating Lease Liabilities	19,200,000	18,400,000
Other Current Liabilities [Member]
Leases [Abstract]
Current Operating Lease Liabilities	19,200,000	18,400,000
Lessee, Lease, Description [Line Items]
Current Operating Lease Liabilities	$ 19,200,000	$ 18,400,000

Leases Operating Lease Liabilit

Leases Operating Lease Liability, Maturity Analysis (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Lessee, Operating Lease, Liability, Payments, Due Next Rolling Twelve Months	$ 24.4
Lessee, Operating Lease, Liability, to be Paid, Year Two	22
Lessee, Operating Lease, Liability, to be Paid, Year Three	19
Lessee, Operating Lease, Liability, to be Paid, Year Four	15.7
Lessee, Operating Lease, Liability, to be Paid, Year Five	8.8
Lessee, Operating Lease, Liability, to be Paid, after Year Five	9.9
Total Lease Payments	99.8
Less: Interest	10.8
Present value of lease liabilities	$ 89	$ 88.5

Leases Lease Cost (Details)

Leases Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Lease Cost	$ 44	[1]	$ 44.4	[1]	$ 33.6
Selling, General and Administrative Expenses [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	13.2		13.9
Variable Lease, Cost	1.1		0.5
Cost of Sales [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	24.9		25.6
Variable Lease, Cost	$ 4.8		$ 4.4
[1]	(A) Includes total short-term lease cost which is immaterial.

Leases Other Lease Disclosures

Leases Other Lease Disclosures (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Lessee, Lease, Description [Line Items]
Operating Lease, Weighted Average Discount Rate, Percent	5.05%
Operating Cash Flows From Operating Leases	$ 22.7
Operating Lease, Weighted Average Remaining Lease Term	5 years 6 months
Sublease Income	$ 0.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Lessee, Lease, Description [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Lessee, Lease, Description [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	5 years

Quarterly Data (unaudited) (Det

Quarterly Data (unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended																12 Months Ended
	Dec. 31, 2020		Sep. 26, 2020		Jun. 27, 2020		Mar. 28, 2020		Dec. 31, 2019		Sep. 28, 2019		Jun. 29, 2019		Mar. 30, 2019		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Net Sales	$ 1,161.1		$ 1,233.1		$ 987.8		$ 965.5		$ 917.6		$ 976.6		$ 1,163.5	[1]	$ 1,050.7		$ 4,347.5		$ 4,108.4		$ 4,120.9
Gross margin	336.3		376.9		256		243.8		236.6	[2]	276.9		328	[2]	279.5		1,213		1,121	[2]
Restructuring, Exit and Impairment Charges	(0.2)	[3]	1.8	[3]	2.1	[3]	0.4	[3]	2.8	[3]	7.4	[3]	5.4	[3]	3.2	[3]	4.1		18.8	[3]	54.8
Pension Settlement Charge	0		(0.2)	[4]	1.3	[4]	0		1.3	[4]	(294.1)	[4]	0		0		1.1	[4]	(292.8)	[4]	0
Net Earnings from Continuing Operations	96	[5]	136.8	[5]	71.2	[5]	70.7	[5]	75	[5]	(232.9)	[5]	112.1	[5]	76.2	[5]	374.7		30.4	[5]	253.4
Net (Loss) Earnings from Discontinued Operations, Net of Tax	(0.9)		1.1		(0.5)		(1.7)		(7.9)		(6.4)		(34.6)		(112.5)		(2)		(161.4)		11.9
Net Earnings	$ 95.1		$ 137.9		$ 70.7		$ 69		$ 67.1		$ (239.3)		$ 77.5		$ (36.3)		$ 372.7		$ (131)		$ 265.3
Dividends Declared	$ 0.27		$ 0.24		$ 0.24		$ 0.24		$ 0.24		$ 0.21		$ 0.21		$ 0.21		$ 0.99		$ 0.87		$ 0.78
Basic Earnings Per Common Share
Earnings from Continuing Operations (in Dollars Per Share)	1.22		1.72		0.89		0.88		0.92		(2.74)		1.29		0.87		4.73		0.36		2.89
Net Earnings (Loss) from Discontinued Operations (in Dollars Per Share)	(0.01)		0.02		0		(0.02)		(0.10)		(0.08)		(0.40)		(1.29)		(0.03)		(1.90)		0.14
Net Earnings (in Dollars per Share)	1.21		1.74		0.89		0.86		0.82		(2.82)		0.89		(0.42)		4.70		(1.54)		3.03
Diluted Earnings Per Common Share
Net Earnings (Loss) from Continuing Operations (in Dollars per Share)	1.22		1.71		0.89		0.88		0.92		(2.74)		1.28		0.87		4.70		0.36		2.87
Net Earnings (Loss) from Discontinued Operations (in Dollars per Share)	(0.02)		0.02		0		(0.02)		(0.10)		(0.08)		(0.39)		(1.29)		(0.02)		(1.89)		0.14
Net Earnings (in Dollars per Share)	1.20		1.73		0.89		0.86		0.82		(2.82)		0.89		(0.42)		4.68		(1.53)		$ 3.01
Common Stock Price [Abstract]
High	84		73.99		67.39		66.32		62.23		54.75		54.76		55.35		84		62.23
Low	$ 58.74		$ 56.50		$ 25.61		$ 25.22		$ 49.36		$ 42.57		$ 41.02		$ 44.89		$ 25.22		$ 41.02
Field Campaigns Charges [Line Items]
Net Sales	$ 1,161.1		$ 1,233.1		$ 987.8		$ 965.5		$ 917.6		$ 976.6		$ 1,163.5	[1]	$ 1,050.7		$ 4,347.5		$ 4,108.4		$ 4,120.9
Cost of Sales																	3,134.5		2,987.4		3,073.9
Net Earnings from Continuing Operations	96	[5]	136.8	[5]	71.2	[5]	70.7	[5]	75	[5]	(232.9)	[5]	112.1	[5]	76.2	[5]	374.7		30.4	[5]	$ 253.4
Special Tax Items Charge (Benefit)	(0.9)		0.7		(0.4)		(0.3)		14.8		2.5		(1.8)		1.7		(0.3)		17.2
Adjusted [Member]
Quarterly Financial Information Disclosure [Abstract]
Net Earnings from Continuing Operations	7.2		6.5		7		6.9		8.2		6.1		9		5.7		27.6		29
Field Campaigns Charges [Line Items]
Net Earnings from Continuing Operations	$ 7.2		6.5		$ 7		$ 6.9		8.2		$ 6.1		9		$ 5.7		$ 27.6		29
Sport Yacht and Yacht [Member]
Quarterly Financial Information Disclosure [Abstract]
Net Sales													(0.7)
Field Campaigns Charges [Line Items]
Net Sales													(0.7)
Cost of Sales									$ 3.9				$ 3.2						$ 7.1
Senior Notes Due 2021 [Member]
Field Campaigns Charges [Line Items]
Extinguishment of Debt, Gain (Loss), Net of Tax			$ 0.8
[1]	(A) In the second quarter of 2018, the Company announced its intention to wind down Sport Yacht & Yachts (SYY) operations. During the second quarter and the full-year of 2019, SYY had Net sales of $(0.7) million.
[2]	(B) Gross margin is defined as Net sales less Cost of sales (COS) as presented in the Consolidated Statements of Operations. During the second and fourth quarter and the full-year of 2019, the Company recorded $3.2 million, $3.9 million and $7.1 million in COS, respectively, related to SYY.
[3]	(C) Restructuring, exit, integration and impairment charges are discussed in Note 4 – Restructuring, Exit and Impairment Activities.
[4]	(D) Pension settlement charges are discussed in Note 17 – Postretirement Benefits
[5]	(E ) During the first, second, third and fourth quarter and full-year of 2020, Net earnings (loss) from continuing operations inclu des $6.9 million, $7.0 million, $6.5 million, $7.2 million and $27.6 million, res pectively, related to purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Net earnings (loss) from continuing operations also includes $(0.3) million, $0.4 million, $(0.7) million, $0.9 million and $0.3 million related to discrete tax items. During the first, second, third and fourth quarter and full-year ended 2019, Net earnings (loss) from continuing operations includ es $5.7 million, $9.0 million, $6.1 million, $8.2 million and $29.0 million, respec tively, related to SYY, purchase accounting amortization, IT transformation costs, and acquisition-related costs, related to the purchase of Power products and Freedom Boat Club. Refer to Note 5 – Acquisitions for further details. Net earnings (loss) from continuing operations also includes $(1.7) million, $1.8 million, $(2.5) million, $(14.8) million and $(17.2) million related to discrete tax items. In the third quarter and full-year of 2019, the Company had a loss of extinguishment of debt, net of tax, of $0.8 million.

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year		$ 8.5	$ 8.7	$ 7.2
Charges to Profit and Loss		(3.3)	(1.6)	(0.8)
Write-offs		(1.6)	(1.7)	(0.9)
Recoveries		0.1	0.2	0.1
Acquisitions		0	0	1.1
Other		0.4	(0.3)	0.4
Balance at End of Year		10.7	8.5	8.7
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year		93.3	74.7	78
Charges to Profit and Loss	[1]	(0.2)	(3.5)	(4)
Write-offs		0	0	0
Recoveries		0	0	0
Other	[2]	0.3	22.1	(7.3)
Balance at End of Year		$ 93.4	$ 93.3	$ 74.7
[1]	(A) For the year ended December 31, 2020, the deferred tax asset valuation benefit activity primarily relates to reassessments for state purposes and to certain federal tax credits. For the year ended December 31, 2019, the deferred tax asset valuation benefit activity primarily relates to reassessments for state recognition purposes. For the year ended December 31, 2018, the deferred tax asset valuation provision activity primarily relates to tax losses in foreign jurisdictions.
[2]	(B) For the year ended December 31, 2020, the activity primarily relates to foreign currency translation. For the year ended December 31, 2019, the activity primarily relates to Federal and State impact of the sale of the stock of certain entities. For the year ended December 31, 2018, activity primarily relates to Federal tax law changes and foreign currency translation.