Hubbell (HUBB) 10-K 8 Feb 24 2023 FY Annual report Financial data

Cover

Cover - USD ($)	12 Months Ended
	Dec. 31, 2023	Feb. 01, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Current Fiscal Year End Date	--12-31
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	1-2958
Entity Registrant Name	HUBBELL INC
Entity Incorporation, State or Country Code	CT
Entity Tax Identification Number	06-0397030
Entity Address, Address Line One	40 Waterview Drive
Entity Address, City or Town	Shelton
Entity Address, State or Province	CT
Entity Address, Postal Zip Code	06484
City Area Code	(475)
Local Phone Number	882-4000
Title of 12(b) Security	Common Stock — par value $0.01 per share
Trading Symbol	HUBB
Security Exchange Name	NYSE
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Document Financial Statement Error Correction [Flag]	false
Entity Public Float			$ 17,689,392,767
Entity Common Stock, Shares Outstanding		53,626,956
Documents Incorporated by Reference	Portions of the definitive proxy statement for the registrant's 2024 annual meeting of shareholders to be filed with the Securities and Exchange Commission (the “SEC”), are incorporated by reference in answer to Part III of this Form 10-K.
Entity Central Index Key	0000048898
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Audit Information [Abstract]
Auditor Firm ID	238
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Hartford, Connecticut

Consolidated Statement of Incom

Consolidated Statement of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales	$ 5,372.9	$ 4,947.9	$ 4,194.1
Cost of goods sold	3,484.8	3,476.3	3,042.6
Gross profit	1,888.1	1,471.6	1,151.5
Selling & administrative expenses	849.6	762.5	619.2
Operating income	1,038.5	709.1	532.3
Loss on disposition of business (Note 4)	0	0	(6.9)
Loss on extinguishment of debt (Note 13)	0	0	(16.8)
Pension charge (Note 12)	0	(7)	0
Interest expense, net	(36.7)	(49.6)	(54.7)
Other (expense) income, net	(18.5)	4.5	5.4
Total other expense	(55.2)	(52.1)	(73)
Income from continuing operations before income taxes	983.3	657	459.3
Provision for income taxes	217.3	140.2	88.2
Net income from continuing operations	766	516.8	371.1
Less: Net income from continuing operations attributable to noncontrolling interest	(6.2)	(5.5)	(6.1)
Net income from continuing operations attributable to Hubbell Incorporated	759.8	511.3	365
Income from discontinued operations, net of tax (Note 2)	0	34.6	34.5
Net income attributable to Hubbell Incorporated	$ 759.8	$ 545.9	$ 399.5
Earnings per share
Basic earnings per share from continuing operations (USD per share)	$ 14.14	$ 9.49	$ 6.70
Basic earnings per share from discontinued operations (USD per share)	0	0.64	0.63
Basic earnings per share (USD per share)	14.14	10.13	7.33
Diluted earnings per share from continuing operations (USD per share)	14.05	9.43	6.66
Diluted earnings per share from discontinued operations (USD per share)	0	0.64	0.62
Diluted earnings per share (USD per share)	$ 14.05	$ 10.07	$ 7.28

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 766	$ 551.4	$ 405.6
Currency translation adjustment:
Foreign currency translation adjustments	22.9	(27.9)	(11.5)
Reclassification of currency translation gains included in net income	0	0.5	0
Defined benefit pension and post-retirement plans, net of taxes of $(4.2), $(4.8) and $(3.2)	10.2	14.2	9.2
Unrealized gain (loss) on investments, net of taxes of $(0.2), $0.4 and $0.1	0.6	(1.4)	(0.4)
Unrealized gains (losses) on cash flow hedges, net of taxes of $0.4, $(0.1) and $(0.4)	(0.9)	0.2	1.1
Other comprehensive income (loss)	32.8	(14.4)	(1.6)
Comprehensive income	798.8	537	404
Less: Comprehensive income attributable to noncontrolling interest	6.2	5.5	6.1
COMPREHENSIVE INCOME ATTRIBUTABLE TO HUBBELL	$ 792.6	$ 531.5	$ 397.9

Consolidated Statement of Com_2

Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosures [Abstract]
Defined benefit pension and post-retirement plans, tax	$ (4.2)	$ (4.8)	$ (3.2)
Unrealized gain (loss) on investments, tax	(0.2)	0.4	0.1
Unrealized gain (losses) on cash flow hedges, tax	$ 0.4	$ (0.1)	$ (0.4)

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current Assets
Cash and cash equivalents	$ 336.1	$ 440.5
Short-term investments	12.6	14.3
Accounts receivable (net of allowances of $11.6 and $14.3)	785.4	741.6
Inventories, net	832.9	740.7
Other current assets	129.7	84.3
Assets held for sale - current	70.5	0
Total Current Assets	2,167.2	2,021.4
Property, Plant, and Equipment, net	652.6	528
Other Assets
Investments	75.8	65.9
Goodwill	2,533.4	1,970.5
Other intangible assets, net	1,196	669.9
Other long-term assets	197.1	146.9
Assets held for sale - non-current	91.9	0
TOTAL ASSETS	6,914	5,402.6
Current Liabilities
Short-term debt and current portion of long-term debt	117.4	4.7
Accounts payable	563.5	529.9
Accrued salaries, wages and employee benefits	173.6	144.2
Accrued insurance	79.1	75.6
Other accrued liabilities	365.2	334.1
Liabilities held for sale - current	24.6	0
Total Current Liabilities	1,323.4	1,088.5
Long-term Debt	2,023.2	1,437.9
Other Non-Current Liabilities	660.6	505.6
Liabilities held for sale - non-current	17.5	0
TOTAL LIABILITIES	4,024.7	3,032
Commitments and Contingencies (see Note 16)
Hubbell Incorporated Shareholders’ Equity
Common Stock - par value $0.01, Authorized 200,000,000 shares, outstanding 53,730,566 and 53,689,539 shares	0.6	0.6
Additional paid-in capital	6.1	0
Retained earnings	3,182.7	2,705.5
Accumulated other comprehensive loss	(312.4)	(345.2)
Total Hubbell Incorporated Shareholders’ Equity	2,877	2,360.9
Noncontrolling interest	12.3	9.7
TOTAL EQUITY	2,889.3	2,370.6
TOTAL LIABILITIES AND EQUITY	$ 6,914	$ 5,402.6

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 11.6	$ 14.3
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	200,000,000	200,000,000
Common stock, shares, outstanding (shares)	53,730,566	53,689,539

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities of Continuing Operations
Net income from continuing operations	$ 766	$ 516.8	$ 371.1
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities, net of acquisitions:
Depreciation and amortization	149.7	148.5	149.1
Deferred income taxes	(16.2)	(27.8)	9.2
Stock-based compensation	26.5	24.5	17.5
Provision for bad debt expense	0.3	7.4	1.3
Loss on disposition of business	0	0	6.9
Loss on extinguishment of debt	0	0	16.8
Pension charge	0	7	0
Loss (gain) on sale of assets	2.5	3.5	(4.7)
Changes in assets and liabilities, net of acquisitions:
Increase in accounts receivable	(1.9)	(74.2)	(124.8)
Increase in inventories	(42.1)	(66.5)	(138.9)
Increase (decrease) in accounts payable	13.2	(15.3)	195.1
(Decrease) increase in current liabilities	(4.5)	108.3	27.6
Changes in other assets and liabilities, net	2.1	13.2	(14.9)
Contributions to qualified defined benefit pension plans	(20)	(12.5)	(0.1)
Other, net	5.2	3.3	2.5
NET CASH PROVIDED BY OPERATING ACTIVITIES FROM CONTINUING OPERATIONS	880.8	636.2	513.7
Cash Flows from Investing Activities of Continuing Operations
Capital expenditures	(165.7)	(129.3)	(90.2)
Acquisitions, net of cash acquired	(1,211.7)	(177.1)	0.1
Proceeds from disposal of business, net of cash	0	332.8	8.5
Purchases of available-for-sale investments	(25.4)	(33.7)	(11.4)
Proceeds from sales of available-for-sale investments	21.8	23	11.5
Other, net	0.8	2.4	9.4
NET CASH (USED IN) PROVIDED BY INVESTING ACTIVITIES FROM CONTINUING OPERATIONS	(1,380.2)	18.1	(72.1)
Cash Flows from Financing Activities of Continuing Operations
Issuance of long-term debt	600	0	298.7
Payment of long-term debt	0	0	(300)
Issuance of short-term debt	100	0	8.1
Payment of short-term debt	(2.2)	(4.8)	(151.6)
Payment of dividends	(245.5)	(229.6)	(216.9)
Make whole payment for retirement of long-term debt	0	0	(16)
Debt issuance cost	(2.2)	0	(4.5)
Acquisition of common shares	(30)	(182)	(11.2)
Other	(31.6)	(20.7)	(39.6)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES FROM CONTINUING OPERATIONS	388.5	(437.1)	(433)
Discontinued Operations:
Cash (used in) provided by operating activities	0	(53)	30.1
Cash used in investing activities	0	(1.7)	(5.7)
Cash (used in) provided by discontinued operations	0	(54.7)	24.4
Effect of foreign currency exchange rate changes on cash and cash equivalents	6.9	(8.8)	(3)
(Decrease) Increase in cash, cash equivalents, and restricted cash	(104)	153.7	30
Cash and cash equivalents, beginning of year	440.5	286.2	258.6
Cash and cash equivalents within assets held for sale, beginning of year	0	0.7	1
Restricted cash, included in other assets, beginning of year	2.8	2.7	0
Less: Restricted cash, included in Other Assets	3.2	2.8	2.7
Less: Cash and cash equivalents within assets held for sale, end of year	0	0	0.7
Cash and cash equivalents, end of year	$ 336.1	$ 440.5	$ 286.2

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - USD ($) $ in Millions		Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total Hubbell Shareholders' Equity	Non- controlling interest
Beginning of period at Dec. 31, 2020			$ 0.6	$ 4.9	$ 2,393.7	$ (329.2)	$ 2,070	$ 15.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 405.6			399.5		399.5	6.1
Other comprehensive (loss) income		(1.6)				(1.6)	(1.6)
Stock-based compensation				18.6			18.6
Acquisition and surrender of common shares	[1]			(24.2)	(15.8)		(40)
Cash dividends declared					(217.4)		(217.4)
Dividends to noncontrolling interest							0	(10.6)
Directors deferred compensation				0.7			0.7
End of period at Dec. 31, 2021			0.6	0	2,560	(330.8)	2,229.8	10.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		551.4			545.9		545.9	5.5
Other comprehensive (loss) income		(14.4)				(14.4)	(14.4)
Stock-based compensation				24.5			24.5
Acquisition and surrender of common shares	[1]			(23.1)	(170.5)		(193.6)
Cash dividends declared					(229.9)		(229.9)
Dividends to noncontrolling interest							0	(6.7)
Directors deferred compensation				(1.4)			(1.4)
End of period at Dec. 31, 2022		2,370.6	0.6	0	2,705.5	(345.2)	2,360.9	9.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		766			759.8		759.8	6.2
Other comprehensive (loss) income		32.8				32.8	32.8
Stock-based compensation				26.9			26.9
Acquisition and surrender of common shares	[1]			(21.4)	(36.6)		(58)
Cash dividends declared					(246)		(246)
Dividends to noncontrolling interest							0	(3.6)
Directors deferred compensation				0.6			0.6
End of period at Dec. 31, 2023		$ 2,889.3	$ 0.6	$ 6.1	$ 3,182.7	$ (312.4)	$ 2,877	$ 12.3
[1]For accounting purposes, the Company treats repurchased shares as constructively retired when acquired and accordingly charges the purchase price against Common Stock par value, Additional paid-in capital, to the extent available, and Retained earnings. The change in Retained earnings of $36.6 million, $170.5 million and $15.8 million in 2023, 2022 and 2021, respectively, reflects this accounting treatment.

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Equity (Parenthetical) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash dividends declared (USD per share)		$ 4.58	$ 4.27	$ 3.99
Retained Earnings
Acquisition and surrender of common shares	[1]	$ 36.6	$ 170.5	$ 15.8
[1]For accounting purposes, the Company treats repurchased shares as constructively retired when acquired and accordingly charges the purchase price against Common Stock par value, Additional paid-in capital, to the extent available, and Retained earnings. The change in Retained earnings of $36.6 million, $170.5 million and $15.8 million in 2023, 2022 and 2021, respectively, reflects this accounting treatment.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). On February 1, 2022, the Company completed the sale of the Commercial and Industrial Lighting business (the "C&I Lighting business") to GE Current, a Daintree Company, for total net cash consideration of $332.8 million. The C&I Lighting business had sales of $509.4 million in 2021 as part of the Electrical Solutions segment and designs, manufactures, and sells LED lighting and control solutions for commercial and industrial customers. The disposal of the C&I Lighting business met the criteria set forth in ASC 205-20 to be presented as a discontinued operation. The C&I Lighting business' results of operations and the related cash flows have been presented as income from discontinued operations in the Consolidated Statements of Income and cash flows from discontinued operations in the Consolidated Statements of Cash Flows, respectively, for all periods presented. See Note 2, Discontinued Operations, to the Consolidated Financial Statements for further information. Principles of Consolidation The Consolidated Financial Statements include all wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. The Company participates in two joint ventures that have been consolidated in accordance with the consolidation accounting guidance. An analysis is performed to determine which reporting entity, if any, has a controlling financial interest in a variable interest entity (“VIE”) with a primarily qualitative analysis. The qualitative analysis is based on identifying the party that has both the power to direct the activities that most significantly impact the VIE’s economic performance (the “power criterion”) and the obligation to absorb losses from or the right to receive benefits of the VIE that could potentially be significant to the VIE (the “losses/benefit criterion”). The party that meets both these criteria is deemed to have a controlling financial interest. The party with the controlling financial interest is considered to be the primary beneficiary and as a result is required to consolidate the VIE. The Company has a 50% interest in a joint venture in Hong Kong, established as Hubbell Asia Limited (“HAL”). The principal objective of HAL is to manage the operations of its wholly-owned manufacturing company in China. Under the accounting guidance, the Company is the primary beneficiary of HAL and as a result consolidates HAL. This determination is based on the fact that HAL’s sole business purpose is to manufacture product exclusively for the Company (the power criterion) and the Company is financially responsible for ensuring HAL maintains a fixed operating margin (the losses/benefit criterion). The consolidation of HAL is not material to the Company’s consolidated financial statements. Use of Estimates The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts in the Consolidated Financial Statements and accompanying Notes to Consolidated Financial Statements. Actual results could differ from the estimates that are used. Assets and Liabilities Held for Sale The Company classifies assets and liabilities (disposal groups) to be sold as held for sale in the period in which all of the following criteria are met: management, having the authority to approve the action, commits to a plan to sell the disposal group; the disposal group is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such disposal groups; an active program to locate a buyer and other actions required to complete the plan to sell the disposal group have been initiated; the sale of the disposal group is probable, and transfer of the disposal group is expected to qualify for recognition as a completed sale within one year, except if events or circumstances beyond the Company's control extend the period of time required to sell the disposal group beyond one year; the disposal group is being actively marketed for sale at a price that is reasonable in relation to its current fair value; and actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. The Company initially measures a disposal group that is classified as held for sale at the lower of its carrying value or fair value less any costs to sell. Any loss resulting from this measurement is recognized in the period in which the held for sale criteria are met. Conversely, gains are not recognized on the sale of a disposal group until the date of sale. The Company assesses the fair value of a disposal group, less any costs to sell, each reporting period it remains classified as held for sale and reports any subsequent changes as an adjustment to the carrying value of the disposal group, as long as the new carrying value does not exceed the carrying value of the disposal group at the time it was initially classified as held for sale. Upon determining that a disposal group meets the criteria to be classified as held for sale, the Company reports the assets and liabilities of the disposal group, if material, in the line items assets held for sale and liabilities held for sale in the consolidated statements of financial position. Refer to Note 4, "Business Acquisitions and Dispositions," of the notes to Consolidated Financial Statements for further information. In conjunction with the residential lighting business being classified as held for sale during the fourth quarter of 2023, depreciation and amortization ceased for the residential lighting business during the fourth quarter of 2023. Revenue Recognition The Company recognizes revenue when performance obligations identified under the terms of contracts with its customers are satisfied, which generally occurs, for products, upon the transfer of control in accordance with the contractual terms and conditions of the sale. The majority of the Company’s revenue associated with products is recognized at a point in time when the product is shipped to the customer, with a relatively small amount of transactions in the Utility Solutions segment recognized upon delivery of the product at the contractually specified destination. The Company also has performance obligations, primarily within the Utility Solutions segment, that are recognized over time due to the customized nature of the product and the Company's enforceable right to receive payment for work performed to date in the event of a cancellation. The Company uses an input measure to determine the extent of progress towards completion of the performance obligation, which the Company believes best depicts the transfer of control to the customer. Under this method, revenue recognition is based upon the ratio of costs incurred to date compared with estimated total costs to complete. Revenue from service contracts and post-shipment performance obligations is approximately two percent of total annual consolidated net revenue and those service contracts and post-shipment obligations are primarily within the Utility Solutions segment. Revenue from service contracts and post-shipment performance obligations is recognized when or as those obligations are satisfied. The Company primarily offers assurance-type standard warranties that do not represent separate performance obligations and on occasion will separately offer and price extended warranties that are separate performance obligations for which the associated revenue is recognized over-time based on the extended warranty period. The Company records amounts billed to customers for reimbursement of shipping and handling costs within revenue. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as fulfillment costs and are included in cost of goods sold. Sales taxes and other usage-based taxes are excluded from revenue. Within the Electrical Solutions segment, certain businesses require a portion of the transaction price to be paid in advance of transfer of control. Advance payments are not considered a significant financing component as they are received less than one year before the related performance obligations are satisfied. In addition, in the Utility Solutions segment, certain businesses offer annual maintenance service contracts that require payment at the beginning of the contract period. These payments are treated as a contract liability and are classified in Other accrued liabilities in the Consolidated Balance Sheet. Once control transfers to the customer and the Company meets the revenue recognition criteria, the deferred revenue is recognized in the Consolidated Statement of Income. The deferred revenue relating to the annual maintenance service contracts is recognized in the Consolidated Statement of Income on a straight line basis over the expected term of the contract. The Company has certain arrangements that require us to estimate at the time of sale the amounts of variable consideration that should not be recorded as revenue as certain amounts are not expected to be collected from customers, as well as an estimate of the value of the product to be returned. The Company principally relies on historical experience, specific customer agreements and anticipated future trends to estimate these amounts at the time of shipment and to reduce the transaction price. These arrangements include sales discounts and allowances based on sales volumes, specific programs and special pricing allowances, and returned goods, as are customary in the electrical products industry. Customer returns have historically been approximately 1% of gross sales. Shipping and Handling Costs The Company records shipping and handling costs as part of Cost of goods sold in the Consolidated Statement of Income. Foreign Currency Translation The assets and liabilities of international subsidiaries are translated to U.S. dollars at exchange rates in effect at the end of the year, and income and expense items are translated at average exchange rates in effect during the year. The effects of exchange rate fluctuations on the translated amounts of foreign currency assets and liabilities are included as translation adjustments in Accumulated other comprehensive loss within Hubbell shareholders’ equity. Gains and losses from foreign currency transactions are included in results of operations. Cash and Cash Equivalents The carrying value of cash equivalents approximates fair value. Cash equivalents consist of highly liquid investments with original maturities to the Company of three months or less. Investments Investments in debt and equity securities are classified by individual security as available-for-sale, held-to-maturity or trading securities. Our available-for-sale securities, consisting of municipal bonds, are carried on the balance sheet at fair value with current period adjustments to carrying value recorded in Accumulated other comprehensive loss within Hubbell shareholders’ equity, net of tax. Realized gains and losses are recorded in income in the period of sale. The Company’s trading securities are carried on the balance sheet at fair value and consist primarily of debt and equity mutual funds. Gains and losses associated with these trading securities are reflected in the results of operations. The Company did not have any investments classified as held-to-maturity as of December 31, 2023 and 2022. Accounts Receivable and Allowances Trade accounts receivable are recorded at the invoiced amount and generally do not bear interest. The allowance for doubtful accounts is based on an estimated amount of probable credit losses in existing accounts receivable. The allowance is calculated based upon a combination of historical write-off experience, fixed percentages applied to aging categories and specific identification based upon a review of past due balances and problem accounts. Account balances are charged off against the allowance when it is determined that internal collection efforts should no longer be pursued. The Company also maintains a reserve for credit memos and cash discounts which are principally calculated based upon historical experience, specific customer agreements, and anticipated future trends. Inventories Inventories are stated at the lower of cost or market value. Approximately 45% of total net inventory value is determined utilizing the last-in, first-out (LIFO) method of inventory accounting. The cost of foreign inventories and certain domestic inventories is determined utilizing average cost or first-in, first-out (FIFO) methods of inventory accounting. Reserves for excess and obsolete inventory are provided based on current assessments about future demand compared to on-hand quantities. Property, Plant, and Equipment Property, plant, and equipment values are stated at cost less accumulated depreciation. Maintenance and repair expenditures that do not significantly increase the life of an asset are charged to expense when incurred. Property, plant, and equipment placed in service prior to January 1, 1999 are depreciated over their estimated useful lives, principally, using accelerated methods. Leasehold improvements are amortized over the shorter of their economic lives or the lease term. Gains and losses arising on the disposal of property, plant and equipment are included in Operating income in the Consolidated Statement of Income. Capitalized Computer Software Costs Capitalized computer software costs, net of amortization, were $5.8 million and $7.0 million at December 31, 2023 and 2022, respectively. This balance is reflected in Other long-term assets in the Consolidated Balance Sheet. Capitalized computer software is for internal use and costs primarily consist of purchased materials, external services and salary costs for personnel dedicated to the projects. Software is amortized on a straight-line basis over appropriate periods, generally between three Goodwill and Other Intangible Assets Goodwill represents purchase price in excess of fair values of the underlying net assets of acquired companies. Indefinite-lived intangible assets and goodwill are subject to annual impairment testing using the specific guidance and criteria described in the accounting guidance. The Company performs its goodwill impairment testing as of April 1st of each year, unless circumstances dictate the need for more frequent assessments. The accounting guidance provides entities an option of performing a qualitative assessment (a "step-zero" test) before performing a quantitative analysis. If the entity determines, on the basis of certain qualitative factors, that it is more-likely-than-not that the goodwill is not impaired, the entity would not need to proceed to quantitative goodwill impairment testing process as prescribed in the guidance. For each of the Company's four reporting units in 2023, the Company elected to utilize the quantitative goodwill impairment testing process, as permitted in the accounting guidance, by comparing the estimated fair value of the Company's reporting units to their carrying values. If the fair value of the reporting unit exceeds its carrying value, no impairment exists. Goodwill impairment testing requires judgment, including the identification of reporting units, assigning assets and liabilities to reporting units and determining the fair value of each reporting unit. Significant judgments required to estimate the fair value of reporting units include estimating future cash flows, determining appropriate discount rates and other assumptions, including assumptions about secular economic and market conditions. The Company uses internal discounted cash flow models to estimate fair value. These cash flow estimates are derived from historical experience, third party end market data, and future long-term business plans and include assumptions on future sales growth, gross margin, operating margin, terminal growth rate, and the application of an appropriate discount rate. Significant changes in these estimates and assumptions could materially affect the determination of fair value and/or goodwill impairment for each reporting unit. The Company believes that its estimated aggregate fair value of its reporting units is reasonable when compared to the Company's market capitalization on the valuation date. The Company completed its annual goodwill impairment test as of April 1, 2023. The impairment testing resulted in implied fair values for each reporting unit that exceeded such reporting unit's carrying value, by at least 47%, including goodwill. Additionally, the Company did not have any reporting units with zero or negative carrying amounts. The Company has not recorded any goodwill impairments since the initial adoption of the accounting guidance in 2002. The Company’s intangible assets consist primarily of customer relationships, tradenames, developed technology and patents. Intangible assets with definite lives are amortized over periods generally ranging from 5-30 years. The Company amortizes intangible assets with definite lives using either an accelerated method that reflects the pattern in which economic benefits of the intangible assets are consumed and results in higher amortization in the earlier years of the assets' useful life, or using a straight line method. Approximately 85% of the gross value of definite-lived intangible assets follow an accelerated amortization method. These definite lived intangibles are tested for impairment whenever events or circumstances indicate that the carrying amount of an asset (asset group) may not be recoverable. An impairment loss is recognized when the carrying amount of an asset exceeds the estimated undiscounted cash flows used in determining the fair value of the asset. The Company did not record any material impairments related to its definite lived intangible assets in 2023, 2022 or 2021. The Company also has some tradenames that are considered to be indefinite-lived intangible assets. These indefinite-lived intangible assets are not amortized and are tested for impairment annually, unless circumstances dictate the need for more frequent assessment. The identification and measurement of impairment of indefinite-lived intangible assets involves either an assessment of qualitative factors to determine whether events or circumstances indicate that it is more-likely-than-not that an indefinite-lived intangible asset is impaired or a quantitative assessment whereby the estimated fair value of each indefinite-lived intangible asset is compared to its carrying value. If it is more-likely-than-not that the asset is impaired, the estimated fair value of the indefinite lived intangibles will be determined using discounted cash flow estimates. If the carrying value of these assets exceeds the estimated fair value, the carrying value will be reduced to the estimated fair value. For the Company’s annual impairment test as of April 1, 2023, the Company elected to utilize the quantitative impairment testing process as permitted in the accounting guidance. The estimated fair value was determined utilizing an income approach (relief from royalty method). Significant judgment is required to estimate the fair value of the indefinite-lived intangible assets including assumptions for future revenues, discount rates, royalty rates, and other assumptions, including assumptions about secular economic and market conditions. Significant changes in these estimates and assumptions could affect the determination of fair value and/or impairment for each indefinite-lived intangible asset. As of April 1, 2023, the impairment testing resulted in estimated fair values for each indefinite-lived intangible asset that significantly exceeded the carrying values and there were no indefinite-lived intangible assets at risk of failing the quantitative impairment test. The Company did not record any impairments related to indefinite-lived intangible assets in 2023, 2022 and 2021. Other Long-Lived Assets The Company reviews depreciable long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be fully recoverable. If such a change in circumstances occurs, the related estimated future undiscounted cash flows expected to result from the use of the asset group and its eventual disposition is compared to the carrying amount. If the sum of the expected cash flows is less than the carrying amount, an impairment charge is recorded. The impairment charge is measured as the amount by which the carrying amount exceeds the fair value of the asset. The fair value of impaired assets is determined using expected cash flow estimates, quoted market prices when available and appraisals as appropriate. The Company did not record any material impairment charges in 2023, 2022 or 2021. Leases We determine if an arrangement is a lease at inception. Operating leases are included as ROU assets within other long-term assets, other accrued liabilities, and other non-current liabilities in our Consolidated Balance Sheets. Finance leases are included in property, plant, and equipment, net, other accrued liabilities, and other non-current liabilities. The Company's finance leases are immaterial. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. We use an implicit rate when readily determinable. For leases existing as of January 1, 2019, we have elected to use the remaining lease term as of the adoption date in determining the incremental borrowing rate. Our determination of the lease term may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. We have lease agreements with lease and non-lease components, which are generally accounted for separately. Additionally, for our vehicle leases, we apply a portfolio approach regarding the assumed lease term. Accrued Insurance The Company retains a significant portion of the risks associated with workers’ compensation, medical, automobile and general liability insurance. The Company estimates self-insurance liabilities using a number of factors, including historical claims experience, demographic factors, and other actuarial assumptions. The accrued liabilities associated with these programs are based on the Company’s estimate of the ultimate costs to settle known claims as well as claims incurred but not reported as of the balance sheet date. The Company periodically reviews the assumptions with a third party actuary to determine the adequacy of these self-insurance reserves. Accrued Warranty The Company offers product warranties which cover defects on most of its products. These warranties primarily apply to products that are properly installed, maintained and used for their intended purposes. The Company accrues estimated warranty costs at the time of sale. Estimated warranty expenses, recorded in cost of goods sold, are based upon historical information such as past experience, product failure rates, or the estimated number of units to be repaired or replaced. Adjustments are made to the product warranty accrual as claims are incurred, additional information becomes known or as historical experience indicates. Income Taxes The Company operates within multiple taxing jurisdictions and is subject to audit in these jurisdictions. The IRS and other tax authorities routinely examine the Company’s tax returns. These audits can involve complex issues which may require an extended period of time to resolve. The Company makes adequate provisions for best estimates of exposures on previously filed tax returns. Deferred income taxes are recognized for the tax consequence of differences between financial statement carrying amounts and the tax basis of assets and liabilities by applying the currently enacted statutory tax rates in accordance with the accounting guidance for income taxes. The effect of a change in statutory tax rates is recognized in the period that includes the enactment date. Additionally, deferred tax assets are required to be reduced by a valuation allowance if it is more-likely-than-not that a portion or all of the deferred tax asset will not be realized. The Company uses factors to assess the likelihood of realization of deferred tax assets such as the forecast of future taxable income and available tax planning that could be implemented to realize the deferred tax assets. In addition, the accounting guidance prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of the tax position taken or expected to be taken in a tax return. For any amount of benefit to be recognized, it must be determined that it is more-likely-than-not that a tax position will be sustained upon examination by taxing authorities based on the technical merits of the position. The amount of benefit to be recognized is based on the Company’s assertion of the most likely outcome resulting from an examination, including resolution of any related appeals or litigation processes. Companies are required to reflect only those tax positions that are more-likely-than-not to be sustained. See Note 14 — Income Taxes for additional information. Research and Development Research and development expenditures represent costs to discover and/or apply new knowledge in developing a new product, process, or in bringing about a significant improvement to an existing product or process. Research and development expenses are recorded as a component of Cost of goods sold. Expenses for research and development were approximatel y 2% o f Net Sales in 2023 and 2% in each of 2022 and 2021. Government Assistance In 2022 we adopted Accounting Standards Update ("ASU") 2021-10, Government Assistance (Topic 832) Disclosures by Business Entities about Government Assistance, which requires footnote disclosure of assistance received from government entities. We record amounts received from government entities as a reduction of the associated expense. Amounts received related to depreciable assets are recognized as a reduction to depreciation expense. The total impact of government assistance was not material to the Company in 2023, 2022, and 2021. Retirement Benefits The Company maintains various defined benefit pension plans for some of its U.S. and foreign employees. The accounting guidance for retirement benefits requires the Company to recognize the funded status of its defined benefit pension and postretirement plans as an asset or liability in the Consolidated Balance Sheet. Gains or losses, prior service costs or credits, and transition assets or obligations that have not yet been included in net periodic benefit cost as of the end of the year are recognized as components of Accumulated other comprehensive loss, net of tax, within Hubbell shareholders’ equity. The Company’s policy is to fund pension costs within the ranges prescribed by applicable regulations. In addition to providing defined benefit pension benefits, the Company provides health care and life insurance benefits for some of its active and retired employees. The Company’s policy is to fund these benefits through insurance premiums or as actual expenditures are made. See also Note 12 — Retirement Benefits. Earnings Per Share Restricted stock granted by the Company is considered a participating security since it contains a non-forfeitable right to dividends. As a result, the earnings per share accounting guidance requires the Company to use the two-class method for calculating earnings per share. The two-class method is an earnings allocation formula that determines earnings per share for common stock and participating securities. Basic earnings per share is calculated as net income available to common shareholders divided by the weighted average number of shares of common stock outstanding. Earnings per diluted share is calculated as net income available to common shareholders divided by the weighted average number of shares outstanding of common stock plus the incremental shares outstanding assuming the exercise of dilutive stock appreciation rights and performance shares. See also Note 19 — Earnings Per Share. Stock-Based Compensation The Company recognizes the grant-date fair value of all stock-based awards on a straight-line basis over their respective requisite service periods (generally equal to an award’s vesting period). A stock-based award is considered vested for expense attribution purposes when the retention of the award is no longer contingent on providing subsequent service. Accordingly, the Company generally recognizes compensation cost immediately for awards granted to retirement-eligible individuals or over the period from the grant date to the date retirement eligibility is achieved, if less than the stated vesting period. The expense is recorded in Cost of goods sold and S&A expense in the Consolidated Statement of Income based on the recipients’ respective functions within the organization. The Company records deferred tax assets for awards that will result in deductions on its tax returns, based upon the amount of compensation cost recognized and the statutory tax rate in the jurisdiction in which it will receive a deduction. See also Note 18 — Stock-Based Compensation. Recently Adopted Accounting Pronouncements In September 2022, the FASB issued ASU 2022-04, "Liabilities - Supplier Finance Programs (Subtopic 405-50: Disclosure of Supplier Finance Program Obligations)", which the Company adopted in the first quarter of 2023, with the exception of the rollforward information, which is effective for the Company in 2024. Payment Services Arrangements The Company has ongoing agreements with financial institutions to facilitate the processing of vendor payables. Under these agreements, the Company pays the financial institution the stated amount of confirmed invoices from participating suppliers on their original maturity date. The terms of the vendor payables are not affected by vendors participating in these agreements. As a result, the amounts owed are presented as accounts payable Commercial Card Program In 2021, the Company entered into an agreement with a financial institution that allows participating suppliers to receive payment for outstanding invoices through a commercial purchasing card sponsored by a financial institution. The Company is required to then settle such outstanding invoices through a consolidated payment to the financial institution 15 days after the commercial card billing cycle. The Company receives the benefit of extended payment terms and a rebate from the financial institution. Either party may terminate the agreement with 60 days written notice. The amount outstanding to the financial institution is presented as short-term debt in the Company’s Consolidated Balance Sheet, of which, $2.0 million and $1.9 million was outstanding at December 31, 2023 and December 31, 2022, respectively. Cash flows under the program are reported in financing activities in the Company’s Consolidated Statement of Cash Flows. Recently Issued Accounting Pronouncements Not Yet Adopted In March 2020, the FASB issued ASU No. 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting", which provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. In December 2022, the FASB issued ASU No. 2022-06 Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which extends the temporary accounting rules under Topic 848 to December 31, 2024. The Company continues to assess the impact of adopting this standard on its financial statements and the timing of adoption. In November 2023, the FASB issued ASU No. 2023-07, "Segment

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2023
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations On February 1, 2022, the Company completed the sale of the C&I Lighting business to GE Current, a Daintree Company, for total net cash consideration of $332.8 million. We have concluded the divestiture of this business represents a strategic shift that will have a major effect on our operations and financial results, and as a result, is reported as a discontinued operation in our Consolidated Financial Statements for all periods presented. The C&I Lighting business was previously included in the Electrical Solutions segment. Under the terms of the transaction, the Company and the buyer entered into a transition services agreement ("TSA"), pursuant to which the Company provides certain administrative and operational services for a period of 12 months or less. Furthermore, we entered into a short-term supply agreement whereby the Company acts as a supplier of finished goods and component parts to the C&I Lighting business after the completion of the sale. Income from the TSA and supply agreement was $13.3 million for the year ended December 31, 2022 and was recorded in Other Income in the Consolidated Financial Statements. The following table presents the summarized components of income from discontinued operations, net of income taxes, for the Commercial and Industrial Lighting business: Year Ended December 31, (in millions) 2023 2022 2021 Net sales $ — $ 29.1 $ 509.4 Cost of goods sold — 27.8 403.4 Gross profit — 1.3 106.0 Selling & administrative expenses — 17.3 88.5 Operating (Loss) income — (16.0) 17.5 Gain on disposal of business — 73.9 — Other expense — (1.5) (4.1) Income from discontinued operations before income taxes — 56.4 13.4 Provision (benefit) for income taxes — 21.8 (21.1) Income from discontinued operations, net of taxes $ — $ 34.6 $ 34.5 Income from discontinued operations, net of taxes for the years ended December 31, 2023 and December 31, 2022 includes pre-tax transaction and separation costs of $0.0 million and

Revenue

Revenue	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue	Revenue The Company recognizes revenue when performance obligations identified under the terms of contracts with its customers are satisfied, which generally occurs, for products, upon the transfer of control in accordance with the contractual terms and conditions of the sale. Approximately three-fourths of the Company's Net sales are to distributors who then sell directly into our end markets. Within the Utility Solutions segment, our businesses sell to distributors, with the majority of sales to the utility end markets and also directly into transmission and distribution utility markets. The majority of the Company’s revenue associated with products is recognized at a point in time when the product is shipped to the customer, with a relatively small amount of transactions, primarily in the Utility Solutions segment, recognized upon delivery of the product at the destination. The Company also has performance obligations, primarily within the Utility Solutions segment, that are recognized over time due to the customized nature of the product and the Company's enforceable right to receive payment for work performed to date in the event of a cancellation. The Company uses an input measure to determine the extent of progress towards completion of the performance obligation, which the Company believes best depicts the transfer of control to the customer. Under this method, revenue recognition is primarily based upon the ratio of costs incurred to date compared with estimated total costs to complete. Revenue from service contracts and post-shipment performance obligations is recognized when or as those obligations are satisfied. The Company primarily offers assurance-type standard warranties that do not represent separate performance obligations and on occasion will separately offer and price extended warranties that are separate performance obligations for which the associated revenue is recognized over-time based on the extended warranty period. The Company records amounts billed to customers for reimbursement of shipping and handling costs within revenue. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as fulfillment costs and are included in cost of goods sold. Sales taxes and other usage-based taxes are excluded from revenue. Within the Electrical Solutions segment, certain businesses require a portion of the transaction price to be paid in advance of transfer of control. Advance payments are not considered a significant financing component as they are received less than one year before the related performance obligations are satisfied. In addition, in the Utility Solutions segment, certain businesses offer annual maintenance service contracts that require payment at the beginning of the contract period. These payments are treated as a contract liability and are classified in Other accrued liabilities in the Consolidated Balance Sheets. Once control transfers to the customer and the Company meets the revenue recognition criteria, the deferred revenue is recognized in the Consolidated Statements of Income. The deferred revenue relating to the annual maintenance service contracts is recognized in the Consolidated Statements of Income on a straight-line basis over the expected term of the contract. The following table presents disaggregated revenue by business group. Twelve Months Ended December 31, in millions 2023 2022 2021 Net sales Utility T&D Components $ 2,457.3 $ 2,218.8 $ 1,679.8 Utility Communications and Controls 804.4 652.3 654.6 Total Utility Solutions $ 3,261.7 $ 2,871.1 $ 2,334.4 Electrical Products 833.6 902.4 809.6 Connection and Bonding 652.3 608.7 525.3 Industrial Controls 438.2 337.7 257.8 Retail and Builder 187.1 228.0 267.0 Total Electrical Solutions $ 2,111.2 $ 2,076.8 $ 1,859.7 TOTAL $ 5,372.9 $ 4,947.9 $ 4,194.1 The following table presents disaggregated third-party Net sales by geographic location (on a geographic basis, the Company defines "international" as operations based outside of the United States and its possessions): Twelve Months Ended December 31, in millions 2023 2022 2021 Net sales United States $ 3,090.7 $ 2,715.8 $ 2,204.9 International 171.0 155.3 129.5 Total Utility Solutions $ 3,261.7 $ 2,871.1 $ 2,334.4 United States 1,831.7 1,820.6 1,604.9 International 279.5 256.2 254.8 Total Electrical Solutions $ 2,111.2 $ 2,076.8 $ 1,859.7 TOTAL $ 5,372.9 $ 4,947.9 $ 4,194.1 Contract Balances Our contract liabilities consist of advance payments for products as well as deferred revenue on service obligations and extended warranties. The current portion of deferred revenue is included in Other accrued liabilities and the non-current portion of deferred revenue is included in Other non-current liabilities in the Consolidated Balance Sheet. Contract liabilities were $118.6 million as of December 31, 2023 compared to $45.8 million as of December 31, 2022. The $72.8 million increase in our contract liabilities balance was primarily due to a $46.7 million net increase in current year deferrals primarily due to timing of advance payments on certain orders and a $68.1 million increase due to acquisitions, partially offset by the recognition of $42.0 million in revenue related to amounts that were recorded in contract liabilities at January 1, 2023. The Systems Control acquisition resulted in the Company acquiring contract assets of $45.7 million, which represent performance obligations satisfied prior to payment that are recorded in Other current assets in the Consolidated Balance Sheets. The ending balance of contract assets as of December 31, 2023 was $41.6 million. Impairment losses recognized on our receivables and contract assets were immaterial in the twelve months ended December 31, 2023. See Note 1 – Significant Accounting Policies in the Notes to Consolidated Financial Statements for additional information. Unsatisfied Performance Obligations The Company has elected the practical expedient to disclose only the value of unsatisfied performance obligations for contracts with an original expected length greater than one year. As of December 31, 2023, the Company had approximately $200 million of unsatisfied performance obligations for contracts with an original expected length of greater than one year, primarily relating to long-term contracts of the Aclara business (within the Utility Solutions segment) to deliver and install meters, metering communications and grid monitoring sensor technology. The Company expects that a majority of the unsatisfied performance obligations will be completed and recognized over the next 2 years.

Business Acquisitions and Dispo

Business Acquisitions and Dispositions	12 Months Ended
	Dec. 31, 2023
Business Combination and Asset Acquisition [Abstract]
Business Acquisitions and Dispositions	Business Acquisitions and Dispositions 2023 Acquisitions In the fourth quarter of 2023 the Company acquired Northern Star Holdings, Inc., ("Systems Control") for approximately $1.1 billion, net of cash acquired, subject to customary purchase price adjustments. Systems Control is a manufacturer of substation control and relay panels, as well as turnkey substation control building solutions. This business is reported in the Utility Solutions segment. We have recognized intangible assets of $569.9 million and goodwill of $522.8 million as a result of this acquisition. The goodwill is attributable primarily to expected synergies, expanded market opportunities, and other expected benefits that the Company believes will result from combining its operations with the operations of Systems Control. For tax purposes, $138.0 million of the Systems Control historical goodwill is deductible. The incremental goodwill created as a result of the acquisition is not deductible for tax purposes. The intangible assets of $569.9 million consist primarily of customer relationships, tradenames and backlog and will be amortized over a weighted average period of approximately 19 years. In the fourth quarter of 2023, the Company acquired all of the issued and outstanding shares of Indústria Eletromecânica Balestro Ltda. ("Balestro") for a cash purchase price of approximately $88 million, net of cash acquired, subject to customary purchase price adjustments. Balestro is a company headquartered in Mogi Mirim, São Paulo, Brazil and designs, manufactures, and delivers top quality products for the electrical utility industry in Brazil and other countries in Latin America, as well as other parts of the world. This business is reported in the Utility Solutions segment. We have recognized intangible assets of $5.6 million and goodwill of $68.7 million as a result of this acquisition. The intangible assets of $5.6 million consist primarily of customer relationships, tradenames and backlog and will be amortized over a weighted average period of approximately 21 years. The goodwill is not expected to be deductible for tax purposes. In the second quarter of 2023, the Company acquired all of the issued and outstanding membership interests of EI Electronics LLC ("EIG") for a cash purchase price of approximately $60 million, net of cash acquired, subject to customary purchase price adjustments. EIG offers fully integrated energy management and power quality monitoring solutions for the electric utility and commercial & industrial markets. This business is reported in the Utility Solutions segment. We have recognized intangible assets of $28.7 million and goodwill of $23.2 million as a result of this acquisition. The intangible assets of $28.7 million consist primarily of customer relationships, developed technology, a tradename and backlog and will be amortized over a weighted average period of approximately 14 years. All of the goodwill is expected to be deductible for tax purposes. These business acquisitions have been accounted for as business combinations and have resulted in the recognition of goodwill. The goodwill relates to a number of factors implied in the purchase prices, including the future earnings and cash flow potential of the businesses as well as the complementary strategic fit and resulting synergies that such business acquisitions bring to the Company’s existing operations. Allocation of Consideration Transferred to Net Assets Acquired The following table presents the preliminary determination of the fair value of identifiable assets acquired and liabilities assumed from the Company's 2023 acquisitions. Fair value estimates are based on a complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. The purchase accounting associated with the December 12, 2023 acquisition of System Controls is preliminary as of December 31, 2023. The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can materially impact the Company's results of operations. The following table summarizes the preliminary fair values of the assets acquired and liabilities assumed as of the respective date of acquisition for all of the Company's 2023 acquisitions (in millions): Accounts receivable $ 71.3 Inventories 87.6 Other current assets 50.0 Property, plant and equipment 32.7 Other non-current assets 2.8 Intangible assets 604.2 Accounts payable (16.7) Other accrued liabilities (87.1) Deferred tax liabilities, net (135.9) Other non-current liabilities (11.9) Goodwill 614.7 Total Estimate of Consideration Transferred, Net of Cash Acquired $ 1,211.7 Cash used for the acquisition of businesses, net of cash acquired as reported in the Consolidated Statement of Cash Flows for the year ended December 31, 2023 is $1,211.7 million and excludes approximately $7.2 million of deferred purchase price related to the Balestro acquisition. The purchase price allocation to identifiable intangible assets acquired for all of the 2023 acquisitions is as follows (in millions, except useful life amounts): Estimated Fair Value Weighted Average Estimated Useful Life Patents, tradenames and trademarks $ 45.1 20 Customer relationships $ 501.1 21 Developed technology $ 8.5 10 Backlog $ 49.5 3 Total $ 604.2 Customer relationships and developed technology intangible assets acquired are amortized using an accelerated method that reflects the pattern in which economic benefits of the intangible assets are consumed and results in higher amortization in the earlier years of the asset's useful life. Supplemental Pro-forma Data The results of operations for the 2023 acquisitions have been included in the Company's consolidated financial statements for the period subsequent to the completion of the acquisitions on their respective dates. Acquisitions contributed sales of approximately $41.4 million and operating income of approximately $0.0 million, before any transaction costs described below, for the period from the completion of the acquisitions through December 31, 2023. The following unaudited supplemental pro-forma information presents consolidated results as if the acquisitions had been completed on January 1, 2022. Following that approach, for the purpose of the pro-forma results presented in the tables below, certain costs incurred by the Company during 2023 have been reclassified into the pro-forma 2022 period. Those reclassifications primarily include the following, which represent the amount of increase or (decrease) to reported results to arrive at the pro-forma results (in millions, except per share amounts). Twelve Months Ended December 31, Per Diluted Share 2023 2022 2023 2022 Transaction costs incurred in 2023 (1) $ 11.2 $ (11.2) $ 0.21 $ (0.21) Intangible amortization and inventory step up (2) $ (20.1) $ (46.8) $ (0.37) $ (0.87) Interest expense (3) $ (29.3) $ (33.8) $ (0.54) $ (0.62) (1) Transaction costs incurred in 2023 have been reclassified into the comparative pro-forma 2022 period. (2) Intangible amortization and inventory step up amortization incurred in 2023 have been reclassified into the comparable pro-forma 2022 period and increased to reflect the assumption the transactions were completed on January 1, 2022. The pro-forma 2023 period includes the intangible amortization that would be incurred assuming the transactions had been completed on January 1, 2022. (3) Interest expense incurred in 2023, reflecting amounts incurred from the date of the acquisitions, has been reclassified into the pro-forma 2022 period and increased to reflect the assumption the transactions were completed on January 1, 2022. The pro-forma 2023 period includes the interest expense that would have been incurred assuming the transactions had been completed on January 1, 2022. The pro-forma results were calculated by combining the results of the Company with the stand-alone results of the acquisitions for the pre-acquisition periods, as described above: Twelve Months Ended December 31, (in millions, except per share amounts) 2023 2022 Net sales $ 5,719.3 $ 5,316.5 Net income attributable to Hubbell $ 773.9 $ 450.1 Earnings Per Share: Basic $ 14.41 $ 8.35 Diluted $ 14.31 $ 8.30 The unaudited supplemental pro-forma financial information does not reflect the actual performance of the 2023 acquisitions in the periods presented and does not reflect the potential realization of cost savings relating to the integration of the acquisitions with Hubbell. Further, the pro-forma data should not be considered indicative of the results that would have occurred if the acquisitions and related financing had been consummated on January 1, 2022, nor are they indicative of future results. Assets and Liabilities Held for Sale In December 2023, the Company entered into a definitive agreement to sell its residential lighting business for a cash purchase price of $131 million, subject to customary adjustments. The transaction is subject to customary closing conditions, including regulatory approvals, and is expected to close in the first quarter of 2024. The Company concluded the business met the criteria for classification as held for sale in the fourth quarter of 2023. The residential lighting business is reported with the Electrical Solutions Segment. The Company expects to record a gain on sale between $1 million and $10 million upon completion of the transaction. The following table presents balance sheet information of the residential lighting business' assets and liabilities held for sale: At December 31, (in millions) 2023 Cash and cash equivalents $ — Accounts receivable, net 29.8 Inventories, net 37.8 Other current assets 2.9 Assets held for sale - current $ 70.5 Property, Plant, and Equipment, net 1.6 Goodwill 63.2 Other Intangible assets, net 6.5 Other long-term assets 20.6 Assets held for sale - non-current $ 91.9 Accounts payable 1.9 Accrued salaries, wages and employee benefits 3.5 Accrued insurance 3.4 Other accrued liabilities 15.8 Liabilities held for sale - current $ 24.6 Other Non-Current Liabilities 17.5 Liabilities held for sale - non-current $ 17.5 2022 Acquisitions In the third quarter of 2022, the Company acquired all of the issued and outstanding membership interests of PCX Holdings LLC ("PCX") for a cash purchase price of approximately $112.8 million, net of cash acquired. PCX is a leading designer and manufacturer of factory built modular power solutions for applications in the data center market. This business is reported in the Electrical Solutions segment. We recognized intangible assets of $49.1 million and goodwill of $77.7 million as a result of this acquisition. The intangible assets of $49.1 million consist primarily of customer relationships, backlog and a tradename and will be amortized over a weighted average period of approximately 11 years. All of the goodwill is expected to be deductible for tax purposes. In the third quarter of 2022, the Company also acquired all of the issued and outstanding membership interests of Ripley Tools, LLC and Nooks Hill Road, LLC (collectively, "Ripley Tools") for a cash purchase price of approximately $50.1 million, net of cash acquired. Ripley Tools is a leading manufacturer of cable and fiber prep tools and test equipment that services both the utility and communications markets. This business is reported in the Utility Solutions segment. We have recognized intangible assets of $18.2 million and goodwill of $25.0 million as a result of this acquisition. The intangible assets of $18.2 million consist primarily of customer relationships and a tradename, and will be amortized over a weighted average period of approximately 16 years. Substantially all of the goodwill is expected to be deductible for tax purposes. In the fourth quarter of 2022, the Company also acquired all of the issued and outstanding equity interests of REF Automation Limited and REF Alabama Inc. (collectively "REF") for a cash purchase price of $14.1 million, net of cash acquired, subject to customary purchase price adjustments. REF designs and manufactures electrical power components utilizing high-volume precision machining, as well as custom fabricated structural products and assemblies for the OEM, industrial and renewables markets. This business is reported in the Electrical Solutions segments. We recognized goodwill of $12.0 million as a r esult of the acquisition. None of the goodwill associated with this acquisition is expected to be deductible for tax purposes. These business acquisitions have been accounted for as business combinations and have resulted in the recognition of goodwill. The goodwill relates to a number of factors implied in the purchase prices, including the future earnings and cash flow potential of the businesses as well as the complementary strategic fit and resulting synergies that such business acquisitions bring to the Company’s existing operations. Allocation of Consideration Transferred to Net Assets Acquired The following table presents the determination of the fair value of identifiable assets acquired and liabilities assumed from the Company's 2022 acquisitions. Fair value est imates are based on a complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can materially impact the Company's results of operations. The following table summarizes the fair values of the assets acquired and liabilities assumed as of the respective date of acquisition for all of the Company's 2022 acquisitions (in millions): Tangible assets acquired $ 41.5 Intangible assets 67.3 Goodwill 114.7 Other liabilities assumed (46.4) Total Estimate of Consideration Transferred, Net of Cash Acquired $ 177.1 The Consolidated Financial Statements include the results of operations of the acquired businesses from their respective dates of acquisition. Net sales and earnings related to these acquisitions for the year ended December 31, 2022 were not significant to the consolidated results. Pro-forma information related to these acquisitions has not been included because the impact to the Company's consolidated results of operations was not material. Dispositions In June 2021, the Company completed the sale of the Consumer Analytics Solutions business for $9.8 million. The Consumer Analytics Solutions business was part of Aclara and was previously included in the Utility Solutions segment. Upon disposition, the Consumer Analytics Solutions business had assets of $15.9 million, including definite-lived intangibles of $8.7 million (primarily customer relationships and developed technology), goodwill of $1.9 million and total liabilities of $1.5 million (primarily composed of deferred revenue). As a result of the sale of the Consumer Analytics Solutions business, we recognized a pre-tax loss of $6.9 million that is included in Total other expense in the Consolidated Statement of Income.

Receivables and Allowances

Receivables and Allowances	12 Months Ended
	Dec. 31, 2023
Accounts and Financing Receivable, after Allowance for Credit Loss, Current [Abstract]
Receivables and Allowances	Receivables and Allowances Receivables consist of the following components at December 31, (in millions): 2023 2022 Trade accounts receivable $ 805.5 $ 778.0 Non-trade receivables 29.7 22.1 Accounts receivable, gross 835.2 800.1 Allowance for credit memos, returns and cash discounts (38.2) (44.2) Allowance for doubtful accounts (11.6) (14.3) Total allowances (49.8) (58.5) ACCOUNTS RECEIVABLE, NET $ 785.4 $ 741.6

Inventories

Inventories	12 Months Ended
	Dec. 31, 2023
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories are classified as follows at December 31, (in millions): 2023 2022 Raw material $ 394.1 $ 302.8 Work-in-process 189.2 161.7 Finished goods 412.1 463.2 Subtotal 995.4 927.7 Excess of FIFO over LIFO cost basis (162.5) (187.0) INVENTORIES, NET $ 832.9 $ 740.7

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Changes in the carrying amounts of goodwill for the years ended December 31, 2023 and 2022, by segment, were as follows (in millions): Segment Utility Solutions Electrical Solutions Total BALANCE AT DECEMBER 31, 2021 $ 1,258.8 $ 612.5 $ 1,871.3 Current year acquisitions (1) 23.8 87.6 111.4 Foreign currency translation (6.7) (5.5) (12.2) BALANCE AT DECEMBER 31, 2022 $ 1,275.9 $ 694.6 $ 1,970.5 Prior year acquisitions (1) 1.2 2.1 3.3 Current year acquisitions (1) 614.7 — 614.7 Reclassifications to held for sale (1) — (63.2) (63.2) Foreign currency translation 5.7 2.4 8.1 BALANCE AT DECEMBER 31, 2023 $ 1,897.5 $ 635.9 $ 2,533.4 (1) Refer to Note 4 – Business Acquisitions and Dispositions for additional information. In 2023, the Company completed multiple acquisitions. These acquisitions have been accounted for as business combinations and have resulted in the recognition of $614.7 million of goodwill. The Company has not recorded any goodwill impairments since the initial adoption of the related accounting guidance in 2002. Identifiable intangible assets are recorded in Other intangible assets, net in the Consolidated Balance Sheet. Identifiable intangible assets are comprised of the following (in millions): December 31, 2023 December 31, 2022 Gross Amount Accumulated Gross Amount Accumulated Definite-lived: Patents, tradenames and trademarks $ 233.7 $ (84.8) $ 187.9 $ (75.7) Customer relationships, developed technology and other 1,513.1 (500.1) 955.3 (437.8) TOTAL DEFINITE-LIVED INTANGIBLES 1,746.8 (584.9) 1,143.2 (513.5) Indefinite-lived: Tradenames and other 34.1 — 40.2 — TOTAL OTHER INTANGIBLE ASSETS $ 1,780.9 $ (584.9) $ 1,183.4 $ (513.5) Amortization expense associated with these definite-lived intangible assets was $73.5 million, $75.7 million and $75.7 million in 2023, 2022 and 2021, respectively . Amortization expense associated with these intangible assets is expected to be $114.4 million in 2024, $95.7 million in 2025, $90.3 million in 2026, $85.7 million in 2027 and $82.2 million in 2028. The Company amortizes intangible assets with definite lives using either an accelerated method that reflects the pattern in which economic benefits of the intangible assets are consumed and results in higher amortization in the earlier years of the assets' useful life, or using a straight line method. Approximately 85% of the gross value of definite-lived intangible assets follow an accelerated amortization method.

Investments

Investments	12 Months Ended
	Dec. 31, 2023
Investments [Abstract]
Investments	Investments At December 31, 2023 and December 31, 2022, the Company held investments classified as available-for-sale and investments classified as trading securities. Investments classified as available-for-sale consisted of municipal bonds with an amortized cost basis of $65.3 million as of December 31, 2023. Investments classified as trading securities were composed primarily of debt and equity mutual funds and are stated at fair market value based on current quotes. The following table sets forth selected data with respect to the Company’s investments at December 31, (in millions): 2023 2022 Amortized Gross Unrealized Gross Unrealized Fair Carrying Amortized Gross Unrealized Gross Unrealized Fair Carrying Available-for-sale securities $ 65.3 $ 0.3 $ (0.6) $ 65.0 $ 65.0 $ 62.6 $ 0.1 $ (1.3) $ 61.4 $ 61.4 Trading securities 11.6 11.8 — 23.4 23.4 10.2 8.6 — 18.8 18.8 TOTAL INVESTMENTS $ 76.9 $ 12.1 $ (0.6) $ 88.4 $ 88.4 $ 72.8 $ 8.7 $ (1.3) $ 80.2 $ 80.2 Contractual maturities of our investments in available-for-sale securities at December 31, 2023 were as follows (in millions): Amortized Cost Fair Value Available-for-sale securities Due within 1 year $ 12.7 $ 12.7 After 1 year but within 5 years 40.9 40.9 After 5 years but within 10 years 0.7 0.7 Due after 10 years 11.0 10.7 TOTAL $ 65.3 $ 65.0 The total unrealized gain/(loss) recognized in the year relating to available-for-sale securities, net of tax, was $0.6 million and $(1.4) million for the year ended December 31, 2023 and 2022, respectively. These net unrealized gains/(losses) are included in Accumulated other comprehensive loss, net of tax. Net unrealized gains relating to trading securities have been reflected in the results of operations. The Company uses the specific identification method when identifying the cost basis used to calculate the gain or loss on these securities. Gains and losses for both available-for-sale and trading securities were not material in 2023, 2022 and 2021. At December 31, 2023 and December 31, 2022, the Company had $65.0 million and $61.4 million, respectively, of available-for-sale municipal debt securities. These investments had an amortized cost of $65.3 million and $62.6 million, respectively. No allowance for credit losses related to our available-for-sale debt securities was recorded for the twelve months ended December 31, 2023. As of December 31, 2023 and December 31, 2022 the unrealized losses attributable to our available-for-sale debt securities was $0.6 million and $1.3 million, respectively. The fair value of available-for-sale debt securities with unrealized losses was $34.5 million at December 31, 2023 and $53.7 million at December 31, 2022.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant, and Equipment Property, plant, and equipment, carried at cost, is summarized as follows at December 31, (in millions): 2023 2022 Land $ 34.9 $ 29.8 Buildings and improvements 249.8 212.1 Machinery, tools, and equipment 992.4 905.7 Construction-in-progress 131.6 99.0 Gross property, plant, and equipment 1,408.7 1,246.6 Less accumulated depreciation (756.1) (718.6) PROPERTY, PLANT, AND EQUIPMENT, NET $ 652.6 $ 528.0 Depreciable lives on buildings range between 20-45 years. Depreciable lives on machinery, tools, and equipment range between 3-15 years. The Company recorded depreciation expense of $71.9 million, $63.4 million and $61.7 million for 2023, 2022 and 2021, respectively.

Other Accrued Liabilities

Other Accrued Liabilities	12 Months Ended
	Dec. 31, 2023
Accrued Liabilities [Abstract]
Other Accrued Liabilities	Other Accrued Liabilities Other accrued liabilities consist of the following at December 31, (in millions): 2023 2022 Customer program incentives $ 57.4 $ 87.8 Accrued income taxes 21.1 4.5 Contract liabilities - deferred revenue 111.5 45.8 Customer refund liability 18.1 14.8 Accrued warranties (1) 15.6 20.2 Current operating lease liabilities 30.6 30.5 Other 110.9 130.5 TOTAL $ 365.2 $ 334.1 (1) Refer to Note 22 – Guarantees for additional information regarding warranties.

Other Non-Current Liabilities

Other Non-Current Liabilities	12 Months Ended
	Dec. 31, 2023
Other Liabilities, Noncurrent [Abstract]
Other Non-Current Liabilities	Other Non-Current Liabilities Other non-current liabilities consist of the following at December 31, (in millions): 2023 2022 Pensions $ 135.0 $ 155.3 Other post-employment benefits 14.4 14.3 Deferred tax liabilities 240.3 113.8 Accrued warranties long-term (1) 23.6 26.0 Non-current operating lease liabilities 118.8 84.9 Other 128.5 111.3 TOTAL $ 660.6 $ 505.6 (1) Refer to Note 22 – Guarantees for additional information regarding warranties.

Retirement Benefits

Retirement Benefits	12 Months Ended
	Dec. 31, 2023
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Retirement Benefits	Retirement Benefits The Company has funded and unfunded non-contributory U.S. and foreign defined benefit pension plans. Benefits under these plans are generally provided based on either years of service and final average pay or a specified dollar amount per year of service. The U.S. defined benefit pension plan has been closed to new participants since 2004, while the Canadian and UK defined benefit pension plans have been closed to new entrants since 2006 and 2007, respectively. These U.S., Canadian and UK employees are eligible instead for defined contribution plans. The Company also has a number of health care and life insurance benefit plans covering eligible employees who reached retirement age while working for the Company. These benefits have been discontinued for substantially all future retirees. The Company anticipates future cost-sharing charges for its discontinued plans that are consistent with past practices. The Company uses a December 31 measurement date for all of its plans. In 2022, the Company recognized a settlement loss in continuing operations relating to retirees that elected to receive lump-sum distributions from the Company's defined benefit pension plans of $7.0 million. This charge was the result of lump-sum payments which exceeded the threshold for settlement accounting under U.S. GAAP . The Company's U.S. defined benefit pension plans were approximately 89% of the $674.9 million total pension benefit obligations at December 31, 2023. The following table sets forth the reconciliation of beginning and ending balances of the benefit obligations and the plan assets for the Company’s defined benefit pension and other benefit plans at December 31, (in millions): Pension Benefits Other Benefits 2023 2022 2023 2022 Change in benefit obligation Benefit obligation at beginning of year $ 670.8 $ 937.7 $ 15.9 $ 18.9 Service cost 0.6 0.9 — — Interest cost 35.2 28.0 0.8 0.5 Plan participants’ contributions — — — — Amendments — — — — Actuarial loss/(gain) 18.1 (214.2) 0.3 (2.2) Curtailment gain — — — — Settlements — (22.5) — — Currency impact 3.2 (10.5) — — Other (0.1) (0.5) — — Benefits paid (52.9) (48.1) (0.9) (1.3) Benefit obligation at end of year $ 674.9 $ 670.8 $ 16.1 $ 15.9 Change in plan assets Fair value of plan assets at beginning of year $ 515.4 $ 765.6 $ — $ — Actual return on plan assets 50.8 (186.6) — — Employer contributions 26.5 19.8 0.9 1.3 Plan participants’ contributions — — — — Settlements — (22.5) — — Currency impact 3.3 (12.8) — — Benefits paid (52.9) (48.1) (0.9) (1.3) Fair value of plan assets at end of year $ 543.1 $ 515.4 $ — $ — FUNDED STATUS $ (131.8) $ (155.4) $ (16.1) $ (15.9) Amounts recognized in the consolidated balance sheet consist of: Prepaid pensions (included in Other long-term assets) $ 10.0 $ 6.8 $ — $ — Accrued benefit liability (short-term and long-term) (141.8) (162.2) (16.1) (15.9) NET AMOUNT RECOGNIZED IN THE CONSOLIDATED BALANCE SHEET $ (131.8) $ (155.4) $ (16.1) $ (15.9) Amounts recognized in Accumulated other comprehensive loss (income) consist of: Net actuarial loss (gain) $ 231.1 $ 244.4 $ (4.7) $ (5.5) Prior service cost (credit) 6.0 6.3 — — NET AMOUNT RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE LOSS $ 237.1 $ 250.7 $ (4.7) $ (5.5) The accumulated benefit obligation for all defined benefit pension plans was $674.9 million and $670.8 million at December 31, 2023 and 2022, respectively. Information with respect to plans with accumulated benefit obligations in excess of plan assets is as follows, (in millions): 2023 2022 Projected benefit obligation $ 467.6 $ 468.0 Accumulated benefit obligation $ 467.6 $ 468.0 Fair value of plan assets $ 325.9 $ 305.8 The following table sets forth the components of pension and other benefit costs for the years ended December 31, (in millions): Pension Benefits Other Benefits 2023 2022 2021 2023 2022 2021 Components of net periodic benefit cost: Service cost $ 0.6 $ 0.9 $ 1.0 $ — $ — $ — Interest cost 35.2 28.0 23.8 0.8 0.5 0.6 Expected return on plan assets (28.1) (30.8) (36.5) — — — Amortization of prior service cost (credit) 0.4 0.4 0.2 — — — Amortization of actuarial losses (gains) 10.4 10.8 10.8 (0.5) (0.2) (0.1) Curtailment and settlement losses — 8.8 — — — — Net periodic benefit cost $ 18.5 $ 18.1 $ (0.7) $ 0.3 $ 0.3 $ 0.5 Changes recognized in other comprehensive loss (income), before tax: Current year net actuarial loss (gain) $ (4.6) $ 2.6 $ (1.4) $ 0.3 $ (2.2) $ (4.1) Current year prior service credit — — 3.6 — — — Amortization of prior service (cost) credit (0.4) (0.4) (0.2) — — — Amortization of net actuarial (losses) gains (10.4) (10.8) (10.8) 0.6 0.2 0.1 Currency impact 1.8 (2.0) (0.2) — — — Settlement adjustment — (8.8) — — — — Curtailment adjustments — — — — — — Total recognized in other comprehensive loss (13.6) (19.4) (9.0) 0.9 (2.0) (4.0) TOTAL RECOGNIZED IN NET PERIODIC PENSION COST AND OTHER COMPREHENSIVE LOSS $ 4.9 $ (1.3) $ (9.7) $ 1.2 $ (1.7) $ (3.5) During 2022, the Company recognized $7.0 million of settlement losses in continuing operations and $1.8 million of settlement losses in discontinued operations. Those settlement losses are the result of lump-sum distributions from the Company's defined benefit pension plans which exceeded the threshold for settlement accounting under U.S. GAAP for the year. The Company also maintains four primary defined contribution pension plans. The total cost of the Company's defined contribution plans was $32.3 million in 2023, $25.8 million in 2022 and $23.3 million in 2021, excluding the employer match for the 401(k) plan. This cost is not included in the above net periodic benefit cost for the defined benefit pension plans. In 2021 and 2022 the Company participated in one multi-employer defined benefit pension plan. The Company’s total contributions while participating in this plan was $0.2 million in 2021 and $0.2 million in 2022. The risks of participating in multi-employer plans are different from single-employer plans in that assets contributed are pooled and may be used to provide benefits to employees of other participating employers. If a participating employer stops contributing to the plan, the unfunded obligations of the plan may have to be assumed by the remaining participant employers. If we choose to stop participating in a multi-employer plan we may be required to pay those plans a withdrawal liability based on the unfunded status of the plan. Assumptions The following assumptions were used to determine the projected benefit obligations at the measurement date and the net periodic benefit cost for the year: Pension Benefits Other Benefits 2023 2022 2021 2023 2022 2021 Weighted-average assumptions used to determine benefit obligations at December 31, Discount rate 5.16 % 5.46 % 2.79 % 5.20 % 5.50 % 2.90 % Rate of compensation increase 0.08 % 0.08 % 0.08 % 5.00 % 3.93 % 3.87 % Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31, Discount rate 5.46 % 2.79 % 2.47 % 5.50 % 2.90 % 2.50 % Expected return on plan assets 5.68 % 4.59 % 4.66 % N/A N/A N/A Rate of compensation increase 0.08 % 0.08 % 0.24 % 3.93 % 3.87 % 3.99 % At the end of each year, the Company determines the appropriate expected return on assets for each plan based upon its strategic asset allocation (see discussion below). In making this determination, the Company utilizes expected returns for each asset class based upon current market conditions and expected risk premiums for each asset class. The Company also determines the discount rate to be used to calculate the present value of pension plan liabilities at the end of each year. The discount rate for the Company’s U.S. and Canadian pension plans is determined by matching the expected cash flows associated with its benefit obligations to the expected cash flows of a hypothetical portfolio of high quality, fixed income debt instruments with maturities that closely match the expected funding period of its pension liabilities. As of December 31, 2023, the Company used a discount rate of 5.20% for its U.S. pension plans compared to a discount rate of 5.50% used in 2022. For its Canadian pension plan, the Company used a discount rate of 4.61% as of December 31, 2023 compared to a 5.01% discount rate used in 2022. For its UK pension plan the discount rate was derived using a full yield curve and uses plan specific cash flows. The derived discount rate is the single discount rate equivalent to discounting these liability cash flows at the term-dependent spot rate of AA corporate bonds. This methodology resulted in a December 31, 2023 discount rate for the UK pension plan of 4.80% as compared to a discount rate of 5.00% used in 2022. In 2021, 2022 and 2023 we used the Pri-2012 mortality table and adopted the MP-2021 projection scale to calculate the present value of our pension plan liabilities. The Pri-2012 mortality table with adjustment for collar as appropriate and generational projection from 2012 using Scale MP-2021 was chosen as the best estimate based on the observed and anticipated experience of the plans after considering alternative tables. The rate of compensation increase assumption reflects the Company’s actual experience and best estimate of future increases. The assumed health care cost trend rates used to determine the projected postretirement benefit obligation are as follows: Other Benefits 2023 2022 2021 Assumed health care cost trend rates at December 31, Health care cost trend assumed for next year 6.8 % 7.0 % 6.2 % Rate to which the cost trend is assumed to decline 5.0 % 5.0 % 5.0 % Year that the rate reaches the ultimate trend rate 2031 2031 2028 Plan Assets The Company’s combined targeted 2024 weighted average asset allocation for domestic and foreign pension plans and the actual weighted average asset allocation for domestic and foreign pension plans at December 31, 2023 and 2022 by asset category are as follows: Percentage of Plan Assets Target Actual Asset Category 2024 2023 2022 Equity securities 23 % 23 % 23 % Debt securities & Cash 77 % 77 % 77 % Alternative Investments — % — % — % TOTAL 100 % 100 % 100 % At the end of each year, the Company estimates the expected long-term rate of return on pension plan assets based on the strategic asset allocation for its plans. In making this determination, the Company utilizes expected rates of return for each asset class based upon current market conditions and expected risk premiums for each asset class. The Company has written investment policies and asset allocation guidelines for its domestic and foreign pension plans. In establishing these policies, the Company has considered that its various pension plans are a major retirement vehicle for most plan participants and has acted to discharge its fiduciary responsibilities with regard to the plans solely in the interest of such participants and their beneficiaries. The goal underlying the establishment of the investment policies is to provide that pension assets shall be invested in a prudent manner and so that, together with the expected contributions to the plans, the funds will be sufficient to meet the obligations of the plans as they become due. To achieve this result, the Company conducts a periodic strategic asset allocation study to form a basis for the allocation of pension assets between various asset categories. Specific policy benchmark percentages are assigned to each asset category with minimum and maximum ranges established for each. The assets are then tactically managed within these ranges. Derivative investments include futures contracts used by the plan to adjust the level of its investments within an asset allocation category. The actual and target percentages reported in the preceding table reflect the economic exposure to each asset category, including the impact of derivative positions. All futures contracts are 100% supported by cash or cash equivalent investments. At no time may derivatives be utilized to leverage the asset portfolio. At December 31, 2023 and 2022, there were no holdings of Company stock in pension plan assets. The Company’s other post-employment benefits are unfunded; therefore, no asset information is reported. The fair value of the Company’s pension plan assets at December 31, 2023 and 2022, by asset category are as follows (in millions): Quoted Prices in Active Quoted Prices in Active Significant Investments Priced Asset Category Total (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 18.0 $ 12.1 $ 5.9 $ — $ — Equity securities: Equity Mutual Funds 22.9 22.9 — — — Common Pooled Equity Funds (a) 98.5 — 98.5 — — Fixed Income Securities: U.S. Treasuries 42.4 — 42.4 — — State and Local Municipal Bonds 7.6 — 7.6 — — Sovereign Debt 6.7 — 6.7 — — Corporate Bonds (b) 120.3 — 120.3 — — Fixed Income Mutual Funds 47.0 47.0 — — — Common Pooled Fixed Income Funds (c) 176.7 — 176.7 — — Alternative Investment Funds (d) 0.8 — — — 0.8 Common Pooled Funds (e) 2.2 0.4 1.8 — — BALANCE AT DECEMBER 31, 2023 $ 543.1 $ 82.4 $ 459.9 $ — $ 0.8 Quoted Prices in Active Quoted Prices in Active Significant Investments Priced Asset Category Total (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 9.8 $ 3.5 $ 6.3 $ — $ — Equity securities: Equity Mutual Funds 21.5 21.5 — — — Common Pooled Equity Funds (a) 84.5 — 84.5 — — Fixed Income Securities: U.S. Treasuries 47.2 — 47.2 — — State and Local Municipal Bonds 6.4 — 6.4 — — Sovereign Debt 4.9 — 4.9 — — Corporate Bonds (b) 105.5 — 105.5 — — Fixed Income Mutual Funds 41.8 41.8 — — — Common Pooled Fixed Income Funds (c) 174.2 — 148.7 — 25.5 Alternative Investment Funds (d) 2.1 — — — 2.1 Common Pooled Funds (e) 17.5 0.4 17.1 — — BALANCE AT DECEMBER 31, 2022 $ 515.4 $ 67.2 $ 420.6 $ — $ 27.6 (a) Investments in Common Pooled Equity Funds, including funds and fund products investing in various equity securities. (b) Includes primarily investment grade bonds from diverse industries (c) Investments in Common Pooled Fixed Income Funds, including funds and fund products investing in various fixed income investments (d) Includes investments in hedge funds, including fund of funds products and open-end mutual funds (e) Investments in Common Pooled Funds, consisting of equities and fixed income securities Investments priced using Net Asset Value ("NAV") within Alternative Investment Funds and Common Pooled Fixed Income Funds in the preceding tables consist of fund of fund products. These products invest in a number of investment funds managed by a diversified group of third-party investment managers who employ a variety of investment strategies, including relative value, security selection, distressed value, global macro, specialized credit and directional strategies. The objective of these funds is to achieve the desired capital appreciation or fixed income as applicable with lower volatility than either traditional equity or fixed income securities. Contributions In 2021, there were no contributions to the Company's U.S. qualified plans required by the Pension Protection Act of 2006. The Company contributed $10.0 million and $2.5 million to its U.S. and foreign qualified plans, respectively, in 2022. The Company contributed $20.0 million to its U.S. qualified plans in 2023. Estimated Future Benefit Payments The following domestic and foreign benefit payments, which reflect future service, as appropriate, are expected to be paid as follows (in millions): Pension Benefits Other Benefits 2024 $ 53.0 $ 1.7 2025 $ 53.3 $ 1.6 2026 $ 53.2 $ 1.5 2027 $ 52.6 $ 1.4 2028 $ 52.1 $ 1.3 2029-2033 $ 251.2 $ 5.5

Debt

Debt	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Debt	Debt The following table sets forth the Company’s long-term debt at December 31, (in millions): Maturity 2023 2022 Senior notes at 3.35% 2026 $ 398.6 $ 397.9 Senior notes at 3.15% 2027 298.0 297.5 Senior notes at 3.50% 2028 447.0 446.2 Senior notes at 2.300% 2031 296.7 296.3 Term loan, net of current portion of $15 million 2026 582.9 — TOTAL LONG-TERM DEBT (a) $ 2,023.2 $ 1,437.9 (a) Long-term debt is presented net of debt issuance costs and unamortized discounts. In December 2023, the Company entered into a new Term Loan Agreement (the "Term Loan Agreement") with a syndicate of lenders under which the Company borrowed $600 million on an unsecured basis to partially finance the Systems Control acquisition, which was completed on December 12, 2023. Borrowings under the Term Loan Agreement bear interest generally at either the adjusted term SOFR rate plus an applicable margin (determined by a ratings based grid) or the alternative base rate. Currently the loans bear interest based on the adjusted term SOFR rate, which was 6.72% as of December 31, 2023. The principal amount of borrowings under the Term Loan Agreement amortize in equal quarterly installments of 2.5% in year one, 2.5% in year two, and 5% in year three, with the remaining borrowings under the Term Loan Agreement due and payable in full at maturity in December 2026. The Company may make principal payments in excess of the amortization schedule at its discretion. The sole financial covenant in the Term Loan Agreement requires that total debt not exceed 65% of total capitalization as of the last day of each fiscal quarter of the Company. The Company was in compliance with this covenant as of December 31, 2023. The Company, as borrower, and its subsidiaries Hubbell Power Holdings S.à r.l. and Harvey Hubbell Holdings S.à r.l., each as a subsidiary borrower (collectively, the “Subsidiary Borrowers”), are parties to a five-year credit agreement with a syndicate of lenders and JPMorgan Chase, N.A., as administrative agent, that provides a $750 million committed revolving credit facility (the "2021 Credit Facility"), which matures on March 12, 2026. Commitments under the 2021 Credit Facility may be increased to an aggregate amount not to exceed $1.25 billion. The 2021 Credit Facility includes a $50 million sub-limit for the issuance of letters of credit. The sum of the dollar amount of loans and letters of credit to the Subsidiary Borrowers under the 2021 Credit Facility may not exceed $75 million. The interest rate applicable to borrowings under the 2021 Credit Facility is either (i) the alternate base rate (as defined in the Revolving Credit Agreement) or (ii) the adjusted SOFR rate plus an applicable margin (determined by a ratings based grid). The 2021 Credit Facility contains a sole financial covenant requiring that, as of the last day of each fiscal quarter, the ratio of total indebtedness to total capitalization shall not be greater than 65%. The Company was in compliance with this covenant as of December 31, 2023. As of December 31, 2023 and December 31, 2022, the 2021 Credit Facility was undrawn. In connection with entry into the 2021 Credit Facility, the Company terminated all commitments under the existing credit facility dated as of January 31, 2018. On March 12, 2021, the Company completed a public offering of $300 million aggregate principal amount of its 2.300% Senior Notes due 2031 (the “2031 Notes”). The net proceeds from the offering were approximately $295.5 million after deducting the underwriting discount and estimated offering expenses payable by the Company. The Company used the net proceeds from the offering of the 2031 Notes, together with cash on hand, to redeem in full all of the Company’s outstanding 3.625% Senior Notes due 2022 in an aggregate principal amount of $300 million, which had a stated maturity date of November 15, 2022 (the “2022 Notes”), and to pay any premium and accrued interest in respect thereof, which redemption was completed on April 2, 2021. The redemption resulted in a $16.8 million loss on extinguishment of indebtedness that was recognized in the second quarter of 2021. The loss on extinguishment includes a cash premium of $16.0 million paid upon redemption in accordance with the terms of the 2022 Notes. The 2031 Notes bear interest at a rate of 2.300% per annum from March 12, 2021. Interest on the 2031 Notes is payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September 15, 2021. The 2031 Notes will mature on March 15, 2031. The 2031 Notes are callable at any time with a make whole premium and are only subject to accelerated payment prior to maturity in the event of a default (including as a result of the Company's failure to meet certain non-financial covenants) under the indenture governing the notes or upon a change in control triggering event as defined in such indenture. The Company was in compliance with all non-financial covenants as of December 31, 2023. In February 2018, the Company completed a public offering of $450 million of senior, unsecured, notes maturing in February 2028 and bearing interest at a fixed rate of 3.50% (the "2028 Notes"). Net proceeds from the issuance of the 2028 Notes were $442.6 million after deducting the discount on such notes and offering expenses paid by the Company. The 2028 Notes are callable at any time at specified prices and are only subject to accelerated payment prior to maturity upon customary events of a default under the indenture governing the 2028 Notes, as modified by the supplemental indenture creating such notes, or upon a change in control triggering event as defined in such indenture. In August 2017, the Company completed a public debt offering of $300 million of long-term unsecured, unsubordinated notes maturing in August 2027 and bearing interest at a fixed rate of 3.15% (the "2027 Notes"). Net proceeds from the issuance were $294.6 million after deducting the discount on the notes and offering expenses paid by the Company. In March 2016, the Company completed a public debt offering of $400 million of long-term unsecured, unsubordinated notes maturing in March 2026 and bearing interest at a fixed rate of 3.35% (the "2026 Notes"). Net proceeds from the issuance were $393.4 million after deducting the discount on the notes and offering expenses paid by the Company. The 2026 Notes, 2027 Notes, 2028 Notes and 2031 Notes, are all fixed rate indebtedness, are callable at any time with a make whole premium and are only subject to accelerated payment prior to maturity in the event of a default (including as a result of the Company's failure to meet certain non-financial covenants) under the indenture governing the notes, as modified by the supplemental indentures creating such notes, or upon a change in control triggering event as defined in such indenture. The Company was in compliance with all non-financial covenants as of December 31, 2023. At December 31, 2023 and 2022, the Company had $117.4 million and $4.7 million, respectively, of short-term debt and current portion of long-term debt outstanding composed of: ◦ $100 million of commercial paper borrowings outstanding at December 31, 2023, which was used to fund the Systems Control acquisition. There was no commercial paper outstanding as of December 31, 2022. ◦ $15.0 million of long-term debt classified as short-term within current liabilities in the Consolidated Balance Sheets, reflecting maturities within the next 12 months relating to borrowing under the Term Loan Agreement at December 31, 2023. ◦ $2.4 million and $4.7 million short-term debt outstanding at December 31, 2023 and December 31, 2022, respectively, which consisted of borrowings to support our international operations in China and amounts outstanding under our commercial card program. Other information related to short-term debt at December 31, is summarized below: 2023 2022 Weighted average interest rate on short-term debt: At year end 5.66 % 2.57 % The Company also maintains other lines of credit that are primarily used to support the issuance of letters of credit. Interest rates and other terms of borrowing under these lines of credit vary from country to country, depending on local market conditions. At December 31, 2023 and 2022 these lines totaled $55.9 million and $55.8 million, respectively, of which $23.4 million and $31.7 million was utilized to support letters of credit and the remaining amount was unused. The annual commitment fees associated with these lines of credit are not material. Interest and fees paid related to total indebtedness was $49.9 million, $47.5 million and $65.6 million in 2023, 2022 and 2021, respectively. The $65.6 million paid in 2021 includes $16.0 million related to the make whole payment for the extinguishment of the 2022 Notes.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The following table sets forth selected data with respect to the Company’s income tax provisions of continuing operations for the years ended December 31, (in millions): 2023 2022 2021 Income before income taxes: United States $ 848.0 $ 528.9 $ 347.5 International 135.3 128.1 111.8 TOTAL INCOME BEFORE INCOME TAXES $ 983.3 $ 657.0 $ 459.3 Provision for income taxes — current: Federal $ 165.6 $ 120.3 $ 43.3 State 35.6 24.2 13.0 International 32.3 23.5 22.7 Total provision — current 233.5 168.0 79.0 Provision for income taxes — deferred: Federal (8.5) (26.2) 8.8 State (8.0) (3.9) 1.9 International 0.3 2.3 (1.5) Total provision — deferred (16.2) (27.8) 9.2 TOTAL PROVISION FOR INCOME TAXES $ 217.3 $ 140.2 $ 88.2 Deferred tax assets and liabilities result from differences in the basis of assets and liabilities for tax and financial statement purposes. The components of the deferred tax assets/(liabilities) of continuing operations at December 31, were as follows (in millions): 2023 2022 Deferred tax assets: Inventories $ 12.0 $ 9.6 Lease liabilities 42.5 27.4 Income tax credits 26.1 22.8 Accrued liabilities 42.5 40.8 Pension 32.2 38.9 Post retirement and post employment benefits 3.9 4.5 Stock-based compensation 7.4 6.9 Loss carryforwards 12.7 14.2 Capitalized research expenditures 40.0 18.4 Miscellaneous other 25.0 16.4 Gross deferred tax assets 244.3 199.9 Valuation allowance (37.4) (32.2) Total deferred tax assets, net of valuation allowance 206.9 167.7 Deferred tax liabilities: Liability on undistributed foreign earnings (9.4) (7.0) Goodwill and intangibles (329.0) (185.0) Right-of-use assets (41.8) (26.1) Property, plant, and equipment (59.8) (57.9) Total deferred tax liabilities (440.0) (276.0) TOTAL NET DEFERRED TAX LIABILITY $ (233.1) $ (108.3) Deferred taxes are reflected in the Consolidated Balance Sheet as follows: Non-current tax assets (included in Other long-term assets) 7.2 5.5 Non-current tax liabilities (included in Other Non-Current Liabilities) (240.3) (113.8) TOTAL NET DEFERRED TAX LIABILITY $ (233.1) $ (108.3) As of December 31, 2023, the Company had a total of $26.1 million of U.S. federal, state (net of federal benefit) and foreign tax credit carryforwards, available to offset future income taxes. As of December 31, 2023, $1.9 million of the tax credits may be carried forward indefinitely while the remaining $24.2 million will begin to expire at various times in 2024 through 2052. As of December 31, 2023, the Company had recorded tax benefits totaling $12.7 million for U.S. federal, state and foreign net operating loss carryforwards (“NOLs”). As of December 31, 2023, $5.2 million of NOLs may be carried forward indefinitely while the remaining $7.5 million will begin to expire at various times in 2024 through 2052. The tax benefit related to a portion of these NOLs has been adjusted to reflect an “ownership change” pursuant to Internal Revenue Code Section 382, which imposes an annual limitation on the utilization of pre-acquisition operating losses. The Company has recorded a net valuation allowance of $37.4 million on certain deferred tax assets including a portion of foreign and state tax credit carryforwards, capital loss carryforwards and NOLs that the Company anticipates will expire prior to utilization. During 2023, the Company repatriated certain of its foreign earnings. As of December 31, 2023, the Company also anticipates repatriating certain of its foreign earnings in the future. The accompanying financial statements reflect the income tax expense associated with actual and anticipated remittances related to certain of our outside basis differences. The Company has not provided for the income tax effects of distributing the remaining approximately $513 million of undistributed foreign earnings as those amounts are either permanently reinvested or intended to be reinvested in our international operations. It is not practicable to estimate the tax cost associated with a remittance of such earnings. Cash payments of income taxes were $215.0 million, $168.0 million and $84.0 million in 2023, 2022, and 2021, respectively. The Company operates within multiple taxing jurisdictions and is subject to audit in these jurisdictions. The IRS and other tax authorities routinely audit the Company’s tax returns. These audits can involve complex issues which may require an extended period of time to resolve. In January 2023 the Company completed its 2018 U.S. federal tax examination with no material adjustments. The Company is currently not under a U.S. tax audit. The Company is under audit in the UK for the tax year 2021. With few exceptions, the Company is no longer subject to state, local, or income tax examinations by tax authorities for years prior to 2019. The following tax years, by major jurisdiction, are still subject to examination by taxing authorities: Jurisdiction Open Years United States 2020-2023 UK 2021-2023 Puerto Rico 2019-2023 Canada 2019-2023 A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in millions): 2023 2022 2021 Unrecognized tax benefits at beginning of year $ 42.1 $ 41.2 $ 47.6 Additions based on tax positions relating to the current year 10.4 12.1 6.1 Reductions based on expiration of statute of limitations (7.6) (4.8) (10.3) Additions/(Subtractions) to tax positions relating to previous years 2.8 (6.2) (2.2) Settlements (0.7) (0.2) — TOTAL UNRECOGNIZED TAX BENEFITS $ 47.0 $ 42.1 $ 41.2 Included in the balance at December 31, 2023 are approximately $37.8 million of tax positions which, if in the future are determined to be recognizable, would affect the annual effective income tax rate. Additionally, there are $4.6 million of tax positions for which the ultimate deductibility is highly certain but for which there is uncertainty as to the timing of such deductibility. Because of the impact of deferred tax accounting, other than interest and penalties, the disallowance of the shorter deductibility period would not affect the annual effective tax rate but would accelerate the payment of cash to the applicable taxing authority to an earlier period. It is reasonably possible that in the next twelve months, because of changes in facts and circumstances, the unrecognized tax benefits may increase or decrease. The Company estimates a possible decrease of approximately $5 million to $10 million within the next twelve months due to the expiration of the statute of limitations and audit resolutions. The Company’s policy is to record interest and penalties associated with the underpayment of income taxes within Provision for income taxes in the Consolidated Statement of Income. The Company recognized expense (benefit), before federal tax impact, related to interest and penalties of $1.2 million in 2023, $(1.0) million in 2022 and $0.3 million in 2021. The Company had $7.9 million and $6.7 million accrued for the payment of interest and penalties as of December 31, 2023 and December 31, 2022, respectively. The consolidated effective income tax rate varied from the United States federal statutory income tax rate of continuing operations for the years ended December 31, as follows: 2023 2022 2021 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % State income taxes, net of federal benefit 2.2 2.4 2.5 Foreign income taxes 0.4 (0.2) (0.5) Federal R&D Credit (0.7) (0.8) (1.4) Other, net (0.8) (1.1) (2.4) CONSOLIDATED EFFECTIVE INCOME TAX RATE 22.1 % 21.3 % 19.2 %

Financial Instruments and Fair

Financial Instruments and Fair Value Measurement	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Financial Instruments and Fair Value Measurement	Financial Instruments and Fair Value Measurement Financial Instruments Concentrations of Credit Risk: Financial instruments which potentially subject the Company to significant concentrations of credit risk consist of trade receivables, cash equivalents and investments. The Company grants credit terms in the normal course of business to its customers. Due to the diversity of its product lines, the Company has an extensive customer base including electrical distributors and wholesalers, electric utilities, equipment manufacturers, electrical contractors, telecommunication companies and retail and hardware outlets. We are not dependent on a single customer, however, the Company’s top ten customers account for approximately 42% of its Net sales. As part of its ongoing procedures, the Company monitors the credit worthiness of its customers. Bad debt write-offs have historically been minimal. The Company places its cash and cash equivalents with financial institutions and limits the amount of exposure in any one institution. At December 31, 2023 our accounts receivable balance was $785.4 million, net of allowances of $11.6 million. The allowance for doubtful accounts has not materially changed since December 31, 2022. Fair Value: The carrying amounts reported in the Consolidated Balance Sheet for cash and cash equivalents, short-term investments, receivables, bank borrowings, accounts payable and accruals approximate their fair values given the immediate or short-term nature of these items. See also Note 8 — Investments. Fair value measurements At December 31, 2023 and 2022 the Company had $88.4 million and $80.2 million respectively, of investments carried on the balance sheet at fair value. Fair value is defined as the amount that would be received for selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The FASB fair value measurement guidance established a fair value hierarchy that prioritizes the inputs used to measure fair value. Refer to Note 8 — Investments for more information about these investments. The three broad levels of the fair value hierarchy are as follows: Level 1 - Quoted prices (unadjusted) in active markets for identical assets or liabilities Level 2 - Quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly Level 3 - Unobservable inputs for which little or no market data exists, therefore requiring a company to develop its own assumptions The following tables show, by level within the fair value hierarchy, the Company’s financial assets and liabilities that are accounted for at fair value on a recurring basis at December 31, 2023 and 2022 (in millions): Asset (Liability) Quoted Prices in Active Markets for Identical Assets (Level 1) Quoted Prices in Active Markets for Similar Assets (Level 2) Unobservable inputs for which little or no market data exists (Level 3) Total Money market funds (a) $ 105.1 $ — $ — $ 105.1 Available for sale investments — 65.0 — 65.0 Trading securities 23.4 — — 23.4 Deferred compensation plan liabilities (23.4) — — (23.4) Derivatives: Forward exchange contracts-(Liabilities) (c) — (0.5) — (0.5) BALANCE AT DECEMBER 31, 2023 $ 105.1 $ 64.5 $ — $ 169.6 Asset (Liability) Quoted Prices in Active Markets for Identical Assets (Level 1) Quoted Prices in Active Markets for Similar Assets (Level 2) Unobservable inputs for which little or no market data exists (Level 3) Total Money market funds (a) $ 147.9 $ — $ — $ 147.9 Time Deposits (a) — 4.8 — 4.8 Available-for-sale investments — 61.4 — 61.4 Trading securities 18.8 — — 18.8 Deferred compensation plan liabilities (18.8) — — (18.8) Derivatives: Forward exchange contracts-Assets (b) — 1.1 — 1.1 BALANCE AT DECEMBER 31, 2022 $ 147.9 $ 67.3 $ — $ 215.2 (a) Money market funds and time deposits are included in Cash and cash equivalents in the Consolidated Balance Sheet. (b) Forward exchange contracts-Assets are reflected in Other current assets in the Consolidated Balance Sheet. (c) Forward exchange contracts-(Liabilities) are reflected in Other accrued liabilities in the Consolidated Balance Sheet. The methods and assumptions used to estimate the Level 2 fair values were as follows: Forward exchange contracts – The fair value of forward exchange contracts were based on quoted forward foreign exchange prices at the reporting date. Available-for-sale municipal bonds classified in Level 2 – The fair value of available-for-sale investments in municipal bonds is based on observable market-based inputs, other than quoted prices in active markets for identical assets. Deferred compensation plan The Company offers certain employees the opportunity to participate in non-qualified deferred compensation plans. A participant’s deferrals are invested in a variety of participant-directed debt and equity mutual funds that are classified as trading securities. During 2023 and 2022, the Company purchased $3.7 million and $2.2 million, respectively, of trading securities related to these deferred compensation plans. As a result of participant distributions, the Company sold $2.2 million and $4.2 million of these trading securities in 2023 and 2022 respectively. The unrealized gains and losses associated with these trading securities are directly offset by the changes in the fair value of the underlying deferred compensation plan obligation. Long-term Debt The total carrying value of long-term debt including the $15.0 million current portion of the Term Loan as of December 31, 2023 was $2,038.2 million, net of unamortized discount and debt issuance costs. As of December 31, 2022 the carrying value of long-term debt was $1,437.9 million, net of unamortized discount and debt issuance cost. The estimated fair value of the long-term debt as of December 31, 2023 and December 31, 2022 was $1,951.6 million and $1,306.5 million, respectively, using quoted market prices in active markets for similar liabilities (Level 2) .

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal and Environmental The Company is subject to various legal proceedings arising in the normal course of its business. These proceedings include claims for damages arising out of use of the Company’s products, intellectual property, workers’ compensation and environmental matters. The Company is self-insured up to specified limits for certain types of claims, including product liability and workers’ compensation, and is fully self-insured for certain other types of claims, including environmental and intellectual property matters. The Company recognizes a liability for any contingency that in management’s judgment is probable of occurrence and can be reasonably estimated. We continually reassess the likelihood of adverse judgments and outcomes in these matters, as well as estimated ranges of possible losses based upon an analysis of each matter which includes advice of outside legal counsel and, if applicable, other experts. The Company is subject to environmental laws and regulations which may require that it investigate and remediate the effects of potential contamination associated with past and present operations as well as those acquired through business combinations. Environmental liabilities are recorded when remedial efforts are probable and the costs can be reasonably estimated. The Company continues to monitor these environmental matters and revalues its liabilities as necessary. Total environmental liabilities The Company accounts for conditional asset retirement and environmental obligations in accordance with the applicable accounting guidance. The accounting guidance defines “conditional asset retirement obligation” as a legal obligation to perform an asset retirement activity in which the timing and/or method of settlement are conditional on a future event that may or may not be within the control of the Company. Accordingly, an entity is required to recognize a liability for the fair value of a conditional asset retirement obligation if the fair value of the liability can be reasonably estimated. Asset retirement obligations were not material as of December 31, 2023 and 2022.

Capital Stock

Capital Stock	12 Months Ended
	Dec. 31, 2023
Stockholders' Equity Note [Abstract]
Capital Stock	Capital Stock Activity in the Company’s common shares outstanding is set forth below for the three years ended December 31, 2023 (in thousands): Common Stock OUTSTANDING AT DECEMBER 31, 2020 54,383 Exercise of stock appreciation rights 147 Director compensation arrangements, net 7 Restricted/performance shares activity, net of forfeitures 101 Acquisition/surrender of shares (120) OUTSTANDING AT DECEMBER 31, 2021 54,518 Exercise of stock appreciation rights 62 Director compensation arrangements, net 6 Restricted/performance shares activity, net of forfeitures 86 Acquisition/surrender of shares (983) OUTSTANDING AT DECEMBER 31, 2022 53,689 Exercise of stock appreciation rights 77 Director compensation arrangements, net 4 Restricted/performance shares activity, net of forfeitures 127 Acquisition/surrender of shares (167) OUTSTANDING AT DECEMBER 31, 2023 53,730 For accounting purposes, the Company treats repurchased shares as constructively retired when acquired and accordingly charges the purchase price against Common Stock par value, Additional paid-in capital and Retained earnings to the extent required. Shares may be repurchased through the Company’s stock repurchase program, acquired by the Company from employees or surrendered to the Company by employees in settlement of their minimum tax liability on vesting of restricted shares and performance shares under the Hubbell Incorporated 2005 Incentive Award Plan as amended and restated (the “Award Plan”). Shares of the Company’s common stock were reserved at December 31, 2023 as follows (in thousands): Common Stock Future grant of stock-based compensation 1,305 Shares reserved under other equity compensation plans 124 TOTAL 1,429

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation As of December 31, 2023, the Company had various stock-based awards outstanding which were issued to executives and other key employees. The Company recognizes the grant-date fair value of all stock-based awards to employees over their respective requisite service periods (generally equal to an award’s vesting period), net of estimated forfeitures. A stock-based award is considered vested for expense attribution purposes when the employee’s retention of the award is no longer contingent on providing subsequent service. For those awards that vest immediately upon retirement eligibility, the Company recognizes compensation cost immediately for retirement-eligible individuals or over the period from the grant date to the date retirement eligibility is achieved, if less than the stated vesting period. The Company’s long-term incentive program for awarding stock-based compensation includes a combination of restricted stock, stock appreciation rights (“SARs”), and performance shares of the Company’s common stock pursuant to the Award Plan. Under the Award Plan, the Company may authorize up to 9.7 million shares of common stock to settle awards of restricted stock, performance shares, or SARs. The Company issues new shares to settle stock-based awards. In 2023, the Company's grant of stock-based awards included restricted stock, SARs and performance shares. Stock-based compensation expense recognized by the Company was $26.5 million in 2023, $24.5 million in 2022 and $17.5 million in 2021. The total income tax benefit recognized was $4.0 million in 2023, $3.9 million in 2022, and $3.2 million in 2021. The net tax windfall recorded as a result of exercise or vesting (depending on the type of award) was $6.4 million, $3.2 million, and $6.8 million in 2023, 2022 and 2021, respectively. As of December 31, 2023, there was $19.7 million, pretax, of total unrecognized compensation cost related to non-vested share-based compensation arrangements. This cost is expected to be primarily recognized through 2026. Stock-based compensation expense is recorded in S&A expense as well as Cost of goods sold. Of the total 2023 expense, $24.9 million was recorded to S&A expense and $1.6 million was recorded to Cost of goods sold. In 2022 and 2021, $23.2 million and $15.8 million, respectively, was recorded to S&A expense and $1.3 million and $1.7 million, respectively, was recorded to Cost of goods sold. Stock-based compensation costs capitalized to inventory was $0.7 million in 2023, $0.4 million in 2022 and $0.4 million in 2021. Each of the compensation arrangements is discussed below. Restricted Stock The Company issues various types of restricted stock awards all of which are considered outstanding at the time of grant, as the award holders are entitled to dividends and voting rights. Unvested restricted stock awards are considered participating securities when computing earnings per share. Restricted stock grants are not transferable and are subject to forfeiture in the event of the recipient’s termination of employment prior to vesting. Restricted Stock Issued to Employees - Service Condition Restricted stock awards that vest based upon a service condition are expensed on a straight-line basis over the requisite service period. These awards generally vest either in three equal installments on each of the first three anniversaries of the grant date or on the third year anniversary of the grant date. The f air value of these awards is measured by the average of the high and low trading prices of the Company’s common stock on the most recent trading day immediately preceding the grant date (“measurement date”). Restricted Stock Issued to Non-employee Directors In 2023, 2022 and 2021, each non-employee director received a restricted stock grant. These grants are made on the date of the annual meeting of shareholders and vest at the following year’s annual meeting of shareholders, or upon certain other events. The grant is subject to forfeiture if the director’s service terminates prior to the date of the next regularly scheduled annual meeting of shareholders. During 2023, 2022 and 2021, the Company granted 4,655 shares, 5,952 shares, and 6,741 shares, respectively, to non-employee directors. Restricted Stock Issued to Employees and Non-employee Directors Activity related to both employee and non-employee restricted stock for the year ended December 31, 2023 is as follows (in thousands, except per share amounts): Shares Weighted Average Grant Date Fair Value/Share RESTRICTED STOCK AT DECEMBER 31, 2022 179 $ 154.09 Shares granted 56 249.36 Shares vested (60) 161.35 Shares forfeited (6) 194.65 RESTRICTED STOCK AT DECEMBER 31, 2023 169 $ 181.29 The weighted average fair value per share of restricted stock granted in 2023, 2022 and 2021 was $249.36, $187.07 and $166.46, respectively. The total fair value of restricted stock vested in 2023, 2022 and 2021 was $9.7 million, $8.4 million and $12.6 million, respectively. Stock Appreciation Rights SARs grant the holder the right to receive, once vested, the value in shares of the Company's common stock equal to the positive difference between the grant price, as determined using the mean of the high and low trading prices of the Company’s common stock on the measurement date, and the fair market value of the Company’s common stock on the date of exercise. This amount is payable in shares of the Company’s common stock. SARs vest and become exercisable in three equal installments during the first three years following the grant date and expire ten years from the grant date. Activity related to SARs for the year ended December 31, 2023 is as follows (in thousands, except per share amounts): Number of Rights Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value OUTSTANDING AT DECEMBER 31, 2022 779 $ 144.66 Granted 101 247.26 Exercised (237) 129.12 Forfeited (14) 200.89 Canceled (2) 111.60 OUTSTANDING AT DECEMBER 31, 2023 627 $ 165.84 6.7 years $ 102,333 EXERCISABLE AT DECEMBER 31, 2023 397 $ 142.04 5.7 years $ 74,257 The aggregated intrinsic value of SARs exercised during 2023, 2022 and 2021 was $36.6 million, $21.0 million and $46.8 million, respectively. The fair value of each SAR award was measured using the Black-Scholes option pricing model. The following table summarizes the weighted-average assumptions used in estimating the fair value of the SARs granted during the years 2023, 2022 and 2021: Grant Date Expected Dividend Yield Expected Volatility Risk Free Interest Rate Expected Term Weighted Avg. Grant Date Fair Value of 1 SAR 2023 1.8 % 28.0 % 3.7 % 4.9 years $ 62.79 2022 2.1 % 27.4 % 1.9 % 4.9 years $ 39.68 2021 2.4 % 26.5 % 0.6 % 5.5 years $ 29.58 The expected dividend yield was calculated by dividing the Company’s expected annual dividend by the average stock price for the past three months. Expected volatilities are based on historical volatilities of the Company’s stock for a period consistent with the expected term. The expected term of SARs granted was based upon historical exercise behavior of SARs. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for the expected term of the award. Performance Shares Performance shares represent the right to receive a share of the Company’s common stock subject to the achievement of certain market or performance conditions established by the Company’s Compensation Committee and measured over a three year period. Partial vesting in these awards may occur after separation from the Company for retirement eligible employees. Shares are not vested until approved by the Company’s Compensation Committee. Performance Shares - Performance and Market Conditions In February 2020, the Company granted performance share awards with a target payout of 63,868 shares that would vest subject to a performance condition and service requirement. The number of shares vested is then modified by a market condition as described below. Thirty-four percent of the award granted would vest based on the Company's compounded annual growth rate of Net sales as compared to that of the companies that comprise the S&P Capital Goods 900 index. Thirty-three percent of the award granted would vest based on achieved operating margin performance as compared to internal targets, and thirty-three percent of the award granted would vest based on achieved trade working capital as a percent of Net sales as compared to internal targets. Each of these performance conditions is measured over the same three-year performance period. The cumulative result of these performance conditions would result in a number of shares earned in the range of 0% - 200% of the target number of shares subject to the award. That cumulative performance achieved is then further modified based on the Company's three year TSR relative to the companies that constitute the S&P Capital Goods 900 index, to potentially increase or reduce the shares earned by a multiple of up to 1.5 or 1.2, depending on the award year. The fair value of the award was determined based upon a lattice model. The Company expensed these awards on a straight-line basis over the requisite service period which included an assessment of the performance achieved to date at each reporting period. The weighted average fair value per share was $151.78 for the awards granted in 2020. During 2023, approximately 79,000 shares from the 2020 awards vested as a result of the cumulative achievement of the performance metrics, and the fair value of the awards at vesting was approximately $20.1 million. Performance Shares - Market Condition In February 2023, 2022, and 2021, the Company granted performance share awards with a target payout of 11,481, 14,076 and 15,741 shares, respectively, that will vest subject to a market condition and service condition through the performance period. The market condition associated with the awards is the Company's total shareholder return ("TSR") compared to the TSR generated by the companies that comprise the S&P Capital Goods 900 index over a three-year performance period. Performance at target will result in vesting and issuance of the number of performance shares subject to the award, equal to 100% payout. Performance below or above target can result in issuance in the range of 0%-200% of the number of shares subject to the award. Expense is recognized irrespective of the market condition being achieved. The fair value of the performance share awards with a market condition for these grants was determined based upon a lattice model. The following table summarizes the related assumptions used to determine the fair values of the performance share awards with a market condition granted during February 2023, 2022 and 2021: Grant Date Stock Price on Measurement Date Dividend Yield Expected Volatility Risk Free Interest Rate Expected Term Weighted Avg. Grant Date Fair Value February 2023 $241.17 1.9% 39.4% 4.1% 2.9 years $279.47 February 2022 $185.87 2.3% 39.7% 1.6% 2.9 years $221.94 February 2021 $163.26 2.4% 40.6% 0.2% 3 years $198.89 Expected volatilities are based on historical volatilities of the Company's and members of the peer group's stock over the expected term of the award. The risk free interest rate is based on the U.S. Treasury yield curve in effect at the time of the grant for the expected term of the award. Performance Shares - Performance Condition In February 2023, 2022, and 2021, the Company granted performance share awards with a target payout of 23,316, 28,628 and 31,543 shares, respectively, that will vest subject to an internal Company-based performance condition and service requirement. Fifty percent of these performance shares subject to the award will vest based on the Company's compounded annual growth rate of Net sales as compared to that of the companies that comprise the S&P Capital Goods 900 index. Fifty percent of these performance shares subject to the award will vest based on achieved operating profit margin performance as compared to internal targets. Each of these performance conditions is measured over the same three-year performance period. The cumulative result of these performance conditions can result in a number of shares earned in the range of 0%-200% of the target number of shares subject to the award. The fair value of the award is measured based upon the average of the high and low trading prices of the Company's common stock on the measurement date reduced by the present value of dividends expected to be paid during the requisite service period. The Company expenses these awards on a straight-line basis over the requisite service period and including an assessment of the performance achieved to date. The weighted average fair value per share was $230.64, $174.48 and $151.92 for the awards granted in 2023, 2022, and 2021, respectively. Grant Date Fair Value Performance Period Payout Range February 2023 $230.64 Jan 2023 - Dec 2025 0-200% February 2022 $174.48 Jan 2022 - Dec 2024 0-200% February 2021 $151.92 Jan 2021 - Dec 2023 0-200%

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The Company computes earnings per share using the two-class method, which is an earnings allocation formula that determines earnings per share for common stock and participating securities. Restricted stock granted by the Company is considered a participating security since it contains a non-forfeitable right to dividends. The following table sets forth the computation of earnings per share for the three years ended December 31 (in millions, except per share amounts): 2023 2022 2021 Numerator: Net income from continuing operations attributable to Hubbell Incorporated $ 759.8 $ 511.3 $ 365.0 Less: Earnings allocated to participating securities (1.8) (1.3) (1.1) Net income from continuing operations available to common shareholders $ 758.0 $ 510.0 $ 363.9 Net income from discontinued operations attributable to Hubbell Incorporated $ — $ 34.6 $ 34.5 Less: Earnings allocated to participating securities — (0.1) (0.1) Net income from discontinued operations available to common shareholders $ — $ 34.5 $ 34.4 Net income attributable to Hubbell Incorporated $ 759.8 $ 545.9 $ 399.5 Less: Earnings allocated to participating securities (1.8) (1.4) (1.2) Net income available to common shareholders $ 758.0 $ 544.5 $ 398.3 Denominator: Average number of common shares outstanding 53.6 53.7 54.3 Potential dilutive shares 0.4 0.4 0.4 Average number of diluted shares outstanding 54.0 54.1 54.7 Basic earnings per share: Basic earnings per share from continuing operations $ 14.14 $ 9.49 $ 6.70 Basic earnings per share from discontinued operations — 0.64 0.63 Basic earnings per share $ 14.14 $ 10.13 $ 7.33 Diluted earnings per share: Diluted earnings per share from continuing operations $ 14.05 $ 9.43 $ 6.66 Diluted earnings per share from discontinued operations — 0.64 0.62 Diluted earnings per share $ 14.05 $ 10.07 $ 7.28 The Company did not have any material anti-dilutive securities in 2023, 2022 or 2021.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss A summary of the changes in Accumulated other comprehensive loss (net of tax) for the three years ended December 31, 2023 is provided below (in millions): (Debit) credit Cash Flow Unrealized Pension and Cumulative Total BALANCE AT DECEMBER 31, 2020 $ (0.7) $ 1.0 $ (212.0) $ (117.5) $ (329.2) Other comprehensive income (loss) before reclassifications 0.4 (0.4) 1.1 (11.5) (10.4) Amounts reclassified from accumulated other comprehensive loss 0.7 — 8.1 — 8.8 Current period other comprehensive income (loss) 1.1 (0.4) 9.2 (11.5) (1.6) BALANCE AT DECEMBER 31, 2021 $ 0.4 $ 0.6 $ (202.8) $ (129.0) $ (330.8) Other comprehensive income (loss) before reclassifications 1.2 (1.4) (0.6) (27.9) (28.7) Amounts reclassified from accumulated other comprehensive loss (1.0) — 14.8 0.5 14.3 Current period other comprehensive income (loss) 0.2 (1.4) 14.2 (27.4) (14.4) BALANCE AT DECEMBER 31, 2022 $ 0.6 $ (0.8) $ (188.6) $ (156.4) $ (345.2) Other comprehensive income (loss) before reclassifications (0.3) 0.6 2.5 22.9 25.7 Amounts reclassified from accumulated other comprehensive loss (0.6) — 7.7 — 7.1 Current period other comprehensive income (loss) (0.9) 0.6 10.2 22.9 32.8 BALANCE AT DECEMBER 31, 2023 $ (0.3) $ (0.2) $ (178.4) $ (133.5) $ (312.4) A summary of the gain (loss) reclassifications out of Accumulated other comprehensive loss for the two years ended December 31 is provided below (in millions): Details about Accumulated Other Comprehensive Loss Components 2023 2022 Location of Gain (Loss) Cash flow hedges gain (loss): Forward exchange contracts $ — $ — Net Sales 0.9 1.2 Cost of goods sold 0.9 1.2 Total before tax (0.3) (0.2) Tax (expense) benefit $ 0.6 $ 1.0 Gain (loss) net of tax Amortization of defined benefit pension and post retirement benefit items: Prior-service credits $ (0.4) (a) $ (0.4) (a) Actuarial gains/(losses) (9.8) (a) (10.6) (a) Settlement and curtailment losses — (a) (8.8) (a) (10.2) (19.8) Total before tax 2.5 5.0 Tax benefit (expense) $ (7.7) $ (14.8) (Loss) gain net of tax Reclassification of currency translation gain $ — $ (0.5) Gain on disposition of business (Note 2) — — Tax benefit (expense) — (0.5) Gain (loss) net of tax Gains (losses) reclassified into earnings $ (7.1) $ (14.3) (Loss) gain net of tax (a) These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 12 — Retirement Benefits for additional details).

Industry Segments and Geographi

Industry Segments and Geographic Area Information	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Industry Segments and Geographic Area Information	Industry Segments and Geographic Area Information Nature of Operations The Company is a global manufacturer of quality electrical products and utility solutions for a broad range of customer and end-market applications. Products are either sourced complete, manufactured or assembled by subsidiaries in the United States, Canada, Puerto Rico, China, Mexico, the UK, Brazil, Australia, Spain, Ireland and the Republic of the Philippines. The Company also participates in joint ventures in Hong Kong and the Republic of the Philippines and maintains offices in Singapore, Italy, China, India, Mexico, South Korea, Chile and countries in the Middle East. Each of the above references to manufacturing locations, joint venture participation, and office locations relate to the three year period ending December 31, 2023. The Company’s reporting segments consist of the Utility Solutions segment and the Electrical Solutions segment, as described below. The Utility Solutions segment consists of businesses that design, manufacture, and sell a wide variety of electrical distribution, transmission, substation, and telecommunications products, which support applications In Front of the Meter. This includes utility transmission & distribution (T&D) components such as arresters, insulators, connectors, anchors, bushings, enclosures, cutouts and switches. The Utility Solutions segment also offers solutions that serve The Edge of the utility infrastructure, including smart meters, communications systems, and protection and control devices. Hubbell Utility Solutions supports the electrical distribution, electrical transmission, water, gas distribution, telecommunications, and solar and wind markets. Hubbell Electrical Solutions is positioned Behind the Meter, providing key components to building operators and industrial customers that enable them to manage their energy and operate critical infrastructure more efficiently and effectively. The Electrical Solutions segment comprises businesses that sell stock and custom products including standard and special application wiring device products, rough-in electrical products, connector and grounding products, and lighting fixtures, as well as other electrical equipment. Products of the Electrical Solutions segment have applications in the light industrial, non-residential, wireless communications, transportation, data center, and heavy industrial markets. Electrical Solutions segment products are typically used in and around industrial, commercial and institutional facilities by electrical contractors, maintenance personnel, electricians, utilities, and telecommunications companies. In addition, certain of our businesses design and manufacture industrial controls and communication systems used in the non-residential and industrial markets. Many of these products are designed such that they can also be used in harsh and hazardous locations where a potential for fire and explosion exists due to the presence of flammable gasses and vapors. Harsh and hazardous products are primarily used in the oil and gas (onshore and offshore) and mining industries. We also offer a variety of lighting fixtures, wiring devices and electrical products that have residential and utility applications, including residential products with IoT enabled technologies. These products are sold under various brands and/or trademarks and are primarily sold through electrical and industrial distributors, home centers, retail and hardware outlets, lighting showrooms and residential product oriented internet sites. Special application products are primarily sold through wholesale distributors to contractors, industrial customers and original equipment manufacturers (“OEMs”). Financial Information Financial information by industry segment, product class and geographic area for each of the three years ended December 31, 2023, 2022 and 2021 is summarized below (in millions). When reading the data the following items should be noted: • Net sales comprise sales to unaffiliated customers — inter-segment and inter-area sales are not significant. • Segment operating income consists of Net sales less operating expenses, including total corporate expenses, which are generally allocated to each segment on the basis of the segment’s percentage of consolidated Net sales. Interest expense and investment income and other expense, net have not been allocated to segments as these items are centrally managed by the Company. • General corporate assets not allocated to segments are principally cash, prepaid pensions, investments and deferred taxes. These assets have not been allocated as they are centrally managed by the Company. INDUSTRY SEGMENT DATA 2023 2022 2021 Net Sales: Utility Solutions $ 3,261.7 $ 2,871.1 $ 2,334.4 Electrical Solutions 2,111.2 2,076.8 1,859.7 TOTAL NET SALES $ 5,372.9 $ 4,947.9 $ 4,194.1 Operating Income: Utility Solutions $ 706.6 $ 438.2 $ 284.1 Electrical Solutions 331.9 270.9 248.2 Operating Income $ 1,038.5 $ 709.1 $ 532.3 Loss on disposition of business (Note 4) — — (6.9) Loss on extinguishment of debt (Note 13) — — (16.8) Pension charge (Note 12) — (7.0) — Interest expense, net (36.7) (49.6) (54.7) Other (expense) income, net (18.5) 4.5 5.4 INCOME BEFORE INCOME TAXES $ 983.3 $ 657.0 $ 459.3 Assets: Utility Solutions $ 4,601.1 $ 3,011.9 $ 2,823.8 Electrical Solutions 1,923.1 1,972.9 2,142.1 General Corporate 389.8 417.8 315.6 TOTAL ASSETS (1) $ 6,914.0 $ 5,402.6 $ 5,281.5 Capital Expenditures: Utility Solutions $ 97.3 $ 86.9 $ 55.8 Electrical Solutions 64.8 39.5 31.1 General Corporate 3.6 2.9 3.3 TOTAL CAPITAL EXPENDITURES $ 165.7 $ 129.3 $ 90.2 Depreciation and Amortization: Utility Solutions $ 103.4 $ 99.2 $ 108.5 Electrical Solutions 46.3 49.3 40.6 TOTAL DEPRECIATION AND AMORTIZATION $ 149.7 $ 148.5 $ 149.1 GEOGRAPHIC AREA DATA 2023 2022 2021 Net Sales: United States $ 4,922.4 $ 4,536.4 $ 3,809.8 International 450.5 411.5 384.3 TOTAL NET SALES $ 5,372.9 $ 4,947.9 $ 4,194.1 Operating Income: United States $ 937.0 $ 598.5 $ 439.6 International 101.5 110.6 92.7 TOTAL OPERATING INCOME $ 1,038.5 $ 709.1 $ 532.3 Long-lived Assets: United States $ 4,250.7 $ 2,983.5 $ 3,038.1 International 488.8 392.3 359.0 TOTAL LONG-LIVED ASSETS (1) $ 4,739.5 $ 3,375.8 $ 3,397.1 (1) Total Assets and Long-lived assets attributable to the Company's formerly owned Commercial and Industrial Lighting business, totaling $356.6 million and $177.1 million were included in total assets held for sale, and noncurrent portion respectively as of December 31, 2021 on the Company's Consolidated Balance Sheets. See Note 2, Discontinued Operations, for further information on the Company's sale of the C&I Lighting business. On a geographic basis, the Company defines “international” as operations based outside of the United States and its possessions. As a percentage of total Net sales, shipments from foreign operations directly to third parties were 8% in 2023, 8% in 2022 and 9% in 2021, with the UK, Canadian, and Brazilian operations representing approximately 32%, 29%, and 15% respectively, of 2023 total international Net sales. Long-lived assets, excluding deferred tax assets, of international subsidiaries were 10% of the consolidated total in 2023, 12% in 2022 and 11% in 2021, with the Brazil, UK, and Spain operations representing approximately 21%, 19%, and 14%, respectively, of the international total in 2023. Export sales from United States operations wer e $345.6 million i n 2023, $253.0 million in 2022 and $227.0 million in 2021.

Guarantees

Guarantees	12 Months Ended
	Dec. 31, 2023
Standard Product Warranty Disclosure [Abstract]
Guarantees	Guarantees The Company records a liability equal to the fair value of guarantees in the Consolidated Balance Sheet in accordance with the accounting guidance for guarantees. When it is probable that a liability has been incurred and the amount can be reasonably estimated, the Company accrues for costs associated with guarantees. The most likely costs to be incurred are accrued based on an evaluation of currently available facts and, where no amount within a range of estimates is more likely, the minimum is accrued. As of December 31, 2023, the fair value and maximum potential payment related to the Company’s guarantees were not material. The Company offers product warranties which cover defects on most of its products. These warranties primarily apply to products that are properly installed, maintained and used for their intended purposes. The Company accrues estimated warranty costs at the time of sale. Estimated warranty expenses, recorded in cost of goods sold, are based upon historical information such as past experience, product failure rates, or the estimated number of units to be repaired or replaced. Adjustments are made to the product warranty accrual as claims are incurred, additional information becomes known or as historical experience indicates. Changes in the accrual for product warranties for the two years ended December 31 are set forth below (in millions): BALANCE AT DECEMBER 31, 2021 $ 66.1 Provision 12.7 Expenditures/other (32.6) BALANCE AT DECEMBER 31, 2022 $ 46.2 Provision 6.1 Expenditures/other (13.1) BALANCE AT DECEMBER 31, 2023 (a) $ 39.2 (a) Refer to Note 10 – Other Accrued Liabilities and Note 11 – Other Non-Current Liabilities for a breakout of short-term and long-term warranties.

Restructuring Costs

Restructuring Costs	12 Months Ended
	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
Restructuring Costs	Restructuring Costs During 2023, we incurred costs for restructuring actions initiated in 2023 as well as costs relating to restructuring actions initiated in the prior year. Our restructuring actions are associated with cost reduction efforts that include the consolidation of manufacturing and distribution facilities, as well as, workforce reductions and the sale or exit of business units we determine to be non-strategic. Restructuring costs are primarily severance and employee benefits, asset impairments, as well as facility closure, contract termination and certain pension costs that are directly related to restructuring actions. These costs are predominantly settled in cash from our operating activities and are generally settled within one year, with the exception of asset impairments, which are non-cash. Pre-tax restructuring costs incurred in each of our segments and the location of the costs in the Consolidated Statement of Income for the years ended December 31, 2023, 2022 and 2021 are as follows (in millions): Twelve Months Ended December 31, 2023 Twelve Months Ended December 31, 2022 Twelve Months Ended December 31, 2021 Utility Solutions Electrical Solutions Total Utility Solutions Electrical Solutions Total Utility Solutions Electrical Solutions Total Restructuring costs Cost of goods sold $ 2.7 $ 1.7 $ 4.4 $ 4.5 $ 5.4 $ 9.9 $ 1.3 $ 1.1 $ 2.4 S&A expense 0.2 0.8 1.0 (0.5) 0.9 0.4 1.1 0.4 1.5 Total restructuring costs $ 2.9 $ 2.5 $ 5.4 $ 4.0 $ 6.3 $ 10.3 $ 2.4 $ 1.5 $ 3.9 The following table summarizes the accrued liabilities for our restructuring actions (in millions): Beginning Accrued Pre-tax Restructuring Costs Utilization and Ending Accrued 2023 Restructuring Actions Severance $ — $ 0.9 $ — $ 0.9 Asset write-downs — — — — Facility closure and other costs — 0.3 (0.3) — Total 2023 Restructuring Actions $ — $ 1.2 $ (0.3) $ 0.9 2022 and Prior Restructuring Actions Severance $ 7.5 $ 0.3 $ (4.8) $ 3.0 Asset write-downs — — — — Facility closure and other costs 0.4 3.9 (4.2) 0.1 Total 2022 and Prior Restructuring Actions $ 7.9 $ 4.2 $ (9.0) $ 3.1 Total Restructuring Actions $ 7.9 $ 5.4 $ (9.3) $ 4.0 The actual and expected pre-tax costs for our restructuring actions are as follows (in millions): Expected Costs Costs incurred in 2021 Costs incurred in 2022 Costs incurred in 2023 Remaining costs at 12/31/23 2023 Restructuring Actions Utility Solutions $ 2.2 $ — $ — $ — $ 2.2 Electrical Solutions 3.9 — — 1.2 2.7 Total 2023 Restructuring Actions $ 6.1 $ — $ — $ 1.2 $ 4.9 2022 Restructuring Actions Utility Solutions $ 8.6 $ — $ 4.7 $ 2.9 $ 1.0 Electrical Solutions 10.8 — 6.5 1.3 3.0 Total 2022 Restructuring Actions $ 19.4 $ — $ 11.2 $ 4.2 $ 4.0 2021 and Prior Restructuring Actions Utility Solutions $ 1.7 $ 2.4 $ (0.7) $ — $ — Electrical Solutions 1.3 1.5 (0.2) — — Total 2021 and Prior Restructuring Actions $ 3.0 $ 3.9 $ (0.9) $ — $ — Total Restructuring Actions $ 28.5 $ 3.9 $ 10.3 $ 5.4 $ 8.9

Leases

Leases	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Leases	Leases Our operating leases primarily consist of office space, certain manufacturing facilities, and vehicles. Our finance leases are not material. The term of our operating leases is generally 10 years or less, in some cases, with options to extend the term for up to 5 years, or options to terminate after one year without penalty. In general, our vehicle lease payments contain a monthly base rent payment which is adjusted based on changes to the LIBOR rate over the lease term. Certain other lease agreements contain variable payments related to a consumer price index or similar metric. Any change in payment amounts as a result of a change in a rate or index are considered variable lease payments and recognized as profit or loss when incurred. Rent expense for operating leases in the Consolidated Statements of Income for the years ended December 31, 2023, December 31, 2022, and December 31, 2021 were $37.7 million, $35.7 million, and $34.1 million, respectively. Cash paid for operating leases for the year ended December 31, 2023 and December 31, 2022 were $34.8 million and $36.3 million reported as cash outflows from operating activities in the Consolidated Statements of Cash Flows. Right-of-use ("ROU") assets obtained in exchange for lease obligations for the year ended December 31, 2023 and December 31, 2022 were $79.8 million and $58.9 million, respectively, which includes $1.4 million and $7.4 million related to acquisitions in 2023 and 2022, respectively. Amounts recognized for operating leases in the Consolidated Balance Sheets is as follows (in millions): December 31, 2023 December 31, 2022 Operating lease right-of-use assets $ 147.1 $ 108.0 TOTAL ASSETS $ 147.1 $ 108.0 Other accrued liabilities $ 30.6 $ 30.5 Other non-current liabilities 118.8 84.9 TOTAL LIABILITIES $ 149.4 $ 115.4 T he weighted average remaining lease term as of December 31, 2023 and December 31, 2022 for operating leases were 4.8 and 5.5 years, respectively. The weighted average discount rate used to measure the ROU asset and lease liability for operating leases was 3.8% as of December 31, 2023 and 3.2% as of December 31, 2022. Future maturities of our operating lease liabilities as of December 31, 2023 are as follows (in millions): 2024 2025 2026 2027 2028 Thereafter Total Payments Imputed Interest Total Operating Leases 36.2 32.9 27.1 23.8 20.5 27.0 167.5 (18.1) $149.4 Future maturities of our operating lease liabilities as of December 31, 2022 are as follows (in millions): 2023 2024 2025 2026 2027 Thereafter Total Payments Imputed Interest Total Operating Leases 33.8 23.9 17.7 14.3 12.3 24.5 126.5 (11.1) $115.4
Leases	Leases Our operating leases primarily consist of office space, certain manufacturing facilities, and vehicles. Our finance leases are not material. The term of our operating leases is generally 10 years or less, in some cases, with options to extend the term for up to 5 years, or options to terminate after one year without penalty. In general, our vehicle lease payments contain a monthly base rent payment which is adjusted based on changes to the LIBOR rate over the lease term. Certain other lease agreements contain variable payments related to a consumer price index or similar metric. Any change in payment amounts as a result of a change in a rate or index are considered variable lease payments and recognized as profit or loss when incurred. Rent expense for operating leases in the Consolidated Statements of Income for the years ended December 31, 2023, December 31, 2022, and December 31, 2021 were $37.7 million, $35.7 million, and $34.1 million, respectively. Cash paid for operating leases for the year ended December 31, 2023 and December 31, 2022 were $34.8 million and $36.3 million reported as cash outflows from operating activities in the Consolidated Statements of Cash Flows. Right-of-use ("ROU") assets obtained in exchange for lease obligations for the year ended December 31, 2023 and December 31, 2022 were $79.8 million and $58.9 million, respectively, which includes $1.4 million and $7.4 million related to acquisitions in 2023 and 2022, respectively. Amounts recognized for operating leases in the Consolidated Balance Sheets is as follows (in millions): December 31, 2023 December 31, 2022 Operating lease right-of-use assets $ 147.1 $ 108.0 TOTAL ASSETS $ 147.1 $ 108.0 Other accrued liabilities $ 30.6 $ 30.5 Other non-current liabilities 118.8 84.9 TOTAL LIABILITIES $ 149.4 $ 115.4 T he weighted average remaining lease term as of December 31, 2023 and December 31, 2022 for operating leases were 4.8 and 5.5 years, respectively. The weighted average discount rate used to measure the ROU asset and lease liability for operating leases was 3.8% as of December 31, 2023 and 3.2% as of December 31, 2022. Future maturities of our operating lease liabilities as of December 31, 2023 are as follows (in millions): 2024 2025 2026 2027 2028 Thereafter Total Payments Imputed Interest Total Operating Leases 36.2 32.9 27.1 23.8 20.5 27.0 167.5 (18.1) $149.4 Future maturities of our operating lease liabilities as of December 31, 2022 are as follows (in millions): 2023 2024 2025 2026 2027 Thereafter Total Payments Imputed Interest Total Operating Leases 33.8 23.9 17.7 14.3 12.3 24.5 126.5 (11.1) $115.4

Valuation and Qualifying Accoun

Valuation and Qualifying Accounts and Reserves	12 Months Ended
	Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts and Reserves	Valuation and Qualifying Accounts and Reserves for the Years Ended December 31, 2021, 2022 and 2023 Reserves deducted in the balance sheet from the assets to which they apply (in millions): Balance Additions / (Reversals) Deductions Balance at End of Year Allowances for doubtful accounts receivable: Year 2021 $ 10.6 $ 2.0 $ (2.0) $ 10.6 Year 2022 $ 10.6 $ 7.2 $ (3.5) $ 14.3 Year 2023 $ 14.3 $ (0.2) $ (2.5) $ 11.6 Allowance for credit memos, returns and cash discounts: Year 2021 $ 31.9 $ 296.5 $ (293.7) $ 34.7 Year 2022 $ 34.7 $ 365.1 $ (355.7) $ 44.1 Year 2023 $ 44.1 $ 365.5 $ (371.4) $ 38.2 Valuation allowance on deferred tax assets: Year 2021 $ 29.5 $ 3.1 $ — $ 32.6 Year 2022 $ 32.6 $ (0.4) $ — $ 32.2 Year 2023 $ 32.2 $ 5.2 $ — $ 37.4

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
Principles of Consolidation	Principles of Consolidation The Consolidated Financial Statements include all wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. The Company participates in two joint ventures that have been consolidated in accordance with the consolidation accounting guidance. An analysis is performed to determine which reporting entity, if any, has a controlling financial interest in a variable interest entity (“VIE”) with a primarily qualitative analysis. The qualitative analysis is based on identifying the party that has both the power to direct the activities that most significantly impact the VIE’s economic performance (the “power criterion”) and the obligation to absorb losses from or the right to receive benefits of the VIE that could potentially be significant to the VIE (the “losses/benefit criterion”). The party that meets both these criteria is deemed to have a controlling financial interest. The party with the controlling financial interest is considered to be the primary beneficiary and as a result is required to consolidate the VIE. The Company has a 50% interest in a joint venture in Hong Kong, established as Hubbell Asia Limited (“HAL”). The principal objective of HAL is to manage the operations of its wholly-owned manufacturing company in China. Under the accounting guidance, the Company is the primary beneficiary of HAL and as a result consolidates HAL. This determination is based on the fact that HAL’s sole business purpose is to manufacture product exclusively for the Company (the power criterion) and the Company is financially responsible for ensuring HAL maintains a fixed operating margin (the losses/benefit criterion). The consolidation of HAL is not material to the Company’s consolidated financial statements.
Use of Estimates	Use of Estimates The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts in the Consolidated Financial Statements and accompanying Notes to Consolidated Financial Statements. Actual results could differ from the estimates that are used.
Assets and Liabilities Held for Sale	Assets and Liabilities Held for Sale The Company classifies assets and liabilities (disposal groups) to be sold as held for sale in the period in which all of the following criteria are met: management, having the authority to approve the action, commits to a plan to sell the disposal group; the disposal group is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such disposal groups; an active program to locate a buyer and other actions required to complete the plan to sell the disposal group have been initiated; the sale of the disposal group is probable, and transfer of the disposal group is expected to qualify for recognition as a completed sale within one year, except if events or circumstances beyond the Company's control extend the period of time required to sell the disposal group beyond one year; the disposal group is being actively marketed for sale at a price that is reasonable in relation to its current fair value; and actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. The Company initially measures a disposal group that is classified as held for sale at the lower of its carrying value or fair value less any costs to sell. Any loss resulting from this measurement is recognized in the period in which the held for sale criteria are met. Conversely, gains are not recognized on the sale of a disposal group until the date of sale. The Company assesses the fair value of a disposal group, less any costs to sell, each reporting period it remains classified as held for sale and reports any subsequent changes as an adjustment to the carrying value of the disposal group, as long as the new carrying value does not exceed the carrying value of the disposal group at the time it was initially classified as held for sale.
Revenue Recognition	Revenue Recognition The Company recognizes revenue when performance obligations identified under the terms of contracts with its customers are satisfied, which generally occurs, for products, upon the transfer of control in accordance with the contractual terms and conditions of the sale. The majority of the Company’s revenue associated with products is recognized at a point in time when the product is shipped to the customer, with a relatively small amount of transactions in the Utility Solutions segment recognized upon delivery of the product at the contractually specified destination. The Company also has performance obligations, primarily within the Utility Solutions segment, that are recognized over time due to the customized nature of the product and the Company's enforceable right to receive payment for work performed to date in the event of a cancellation. The Company uses an input measure to determine the extent of progress towards completion of the performance obligation, which the Company believes best depicts the transfer of control to the customer. Under this method, revenue recognition is based upon the ratio of costs incurred to date compared with estimated total costs to complete. Revenue from service contracts and post-shipment performance obligations is approximately two percent of total annual consolidated net revenue and those service contracts and post-shipment obligations are primarily within the Utility Solutions segment. Revenue from service contracts and post-shipment performance obligations is recognized when or as those obligations are satisfied. The Company primarily offers assurance-type standard warranties that do not represent separate performance obligations and on occasion will separately offer and price extended warranties that are separate performance obligations for which the associated revenue is recognized over-time based on the extended warranty period. The Company records amounts billed to customers for reimbursement of shipping and handling costs within revenue. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as fulfillment costs and are included in cost of goods sold. Sales taxes and other usage-based taxes are excluded from revenue. Within the Electrical Solutions segment, certain businesses require a portion of the transaction price to be paid in advance of transfer of control. Advance payments are not considered a significant financing component as they are received less than one year before the related performance obligations are satisfied. In addition, in the Utility Solutions segment, certain businesses offer annual maintenance service contracts that require payment at the beginning of the contract period. These payments are treated as a contract liability and are classified in Other accrued liabilities in the Consolidated Balance Sheet. Once control transfers to the customer and the Company meets the revenue recognition criteria, the deferred revenue is recognized in the Consolidated Statement of Income. The deferred revenue relating to the annual maintenance service contracts is recognized in the Consolidated Statement of Income on a straight line basis over the expected term of the contract. The Company has certain arrangements that require us to estimate at the time of sale the amounts of variable consideration that should not be recorded as revenue as certain amounts are not expected to be collected from customers, as well as an estimate of the value of the product to be returned. The Company principally relies on historical experience, specific customer agreements and anticipated future trends to estimate these amounts at the time of shipment and to reduce the transaction price. These arrangements include sales discounts and allowances based on sales volumes, specific programs and special pricing allowances, and returned goods, as are customary in the electrical products industry. Customer returns have historically been approximately 1% of gross sales. Shipping and Handling Costs
Foreign Currency Translation	Foreign Currency Translation The assets and liabilities of international subsidiaries are translated to U.S. dollars at exchange rates in effect at the end of the year, and income and expense items are translated at average exchange rates in effect during the year. The effects of exchange rate fluctuations on the translated amounts of foreign currency assets and liabilities are included as translation adjustments in Accumulated other comprehensive loss within Hubbell shareholders’ equity. Gains and losses from foreign currency transactions are included in results of operations.
Cash and Cash Equivalents	Cash and Cash Equivalents The carrying value of cash equivalents approximates fair value. Cash equivalents consist of highly liquid investments with original maturities to the Company of three months or less.
Investments	Investments
Accounts Receivable and Allowances	Accounts Receivable and Allowances Trade accounts receivable are recorded at the invoiced amount and generally do not bear interest. The allowance for doubtful accounts is based on an estimated amount of probable credit losses in existing accounts receivable. The allowance is calculated based upon a combination of historical write-off experience, fixed percentages applied to aging categories and specific identification based upon a review of past due balances and problem accounts. Account balances are charged off against the allowance when it is determined that internal collection efforts should no longer be pursued. The Company also maintains a reserve for credit memos and cash discounts which are principally calculated based upon historical experience, specific customer agreements, and anticipated future trends.
Inventories	Inventories Inventories are stated at the lower of cost or market value. Approximately 45% of total net inventory value is determined utilizing the last-in, first-out (LIFO) method of inventory accounting. The cost of foreign inventories and certain domestic inventories is determined utilizing average cost or first-in, first-out (FIFO) methods of inventory accounting. Reserves for excess and obsolete inventory are provided based on current assessments about future demand compared to on-hand quantities.
Property, Plant and Equipment	Property, Plant, and Equipment Property, plant, and equipment values are stated at cost less accumulated depreciation. Maintenance and repair expenditures that do not significantly increase the life of an asset are charged to expense when incurred. Property, plant, and equipment placed in service prior to January 1, 1999 are depreciated over their estimated useful lives, principally, using accelerated methods. Leasehold improvements are amortized over the shorter of their economic lives or the lease term. Gains and losses arising on the disposal of property, plant and equipment are included in Operating income in the Consolidated Statement of Income.
Capitalized Computer Software Costs	Capitalized Computer Software Costs Capitalized computer software costs, net of amortization, were $5.8 million and $7.0 million at December 31, 2023 and 2022, respectively. This balance is reflected in Other long-term assets in the Consolidated Balance Sheet. Capitalized computer software is for internal use and costs primarily consist of purchased materials, external services and salary costs for personnel dedicated to the projects. Software is amortized on a straight-line basis over appropriate periods, generally between three
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill represents purchase price in excess of fair values of the underlying net assets of acquired companies. Indefinite-lived intangible assets and goodwill are subject to annual impairment testing using the specific guidance and criteria described in the accounting guidance. The Company performs its goodwill impairment testing as of April 1st of each year, unless circumstances dictate the need for more frequent assessments. The accounting guidance provides entities an option of performing a qualitative assessment (a "step-zero" test) before performing a quantitative analysis. If the entity determines, on the basis of certain qualitative factors, that it is more-likely-than-not that the goodwill is not impaired, the entity would not need to proceed to quantitative goodwill impairment testing process as prescribed in the guidance. For each of the Company's four reporting units in 2023, the Company elected to utilize the quantitative goodwill impairment testing process, as permitted in the accounting guidance, by comparing the estimated fair value of the Company's reporting units to their carrying values. If the fair value of the reporting unit exceeds its carrying value, no impairment exists. Goodwill impairment testing requires judgment, including the identification of reporting units, assigning assets and liabilities to reporting units and determining the fair value of each reporting unit. Significant judgments required to estimate the fair value of reporting units include estimating future cash flows, determining appropriate discount rates and other assumptions, including assumptions about secular economic and market conditions. The Company uses internal discounted cash flow models to estimate fair value. These cash flow estimates are derived from historical experience, third party end market data, and future long-term business plans and include assumptions on future sales growth, gross margin, operating margin, terminal growth rate, and the application of an appropriate discount rate. Significant changes in these estimates and assumptions could materially affect the determination of fair value and/or goodwill impairment for each reporting unit. The Company believes that its estimated aggregate fair value of its reporting units is reasonable when compared to the Company's market capitalization on the valuation date. The Company completed its annual goodwill impairment test as of April 1, 2023. The impairment testing resulted in implied fair values for each reporting unit that exceeded such reporting unit's carrying value, by at least 47%, including goodwill. Additionally, the Company did not have any reporting units with zero or negative carrying amounts. The Company has not recorded any goodwill impairments since the initial adoption of the accounting guidance in 2002. The Company’s intangible assets consist primarily of customer relationships, tradenames, developed technology and patents. Intangible assets with definite lives are amortized over periods generally ranging from 5-30 years. The Company amortizes intangible assets with definite lives using either an accelerated method that reflects the pattern in which economic benefits of the intangible assets are consumed and results in higher amortization in the earlier years of the assets' useful life, or using a straight line method. Approximately 85% of the gross value of definite-lived intangible assets follow an accelerated amortization method. These definite lived intangibles are tested for impairment whenever events or circumstances indicate that the carrying amount of an asset (asset group) may not be recoverable. An impairment loss is recognized when the carrying amount of an asset exceeds the estimated undiscounted cash flows used in determining the fair value of the asset. The Company did not record any material impairments related to its definite lived intangible assets in 2023, 2022 or 2021. The Company also has some tradenames that are considered to be indefinite-lived intangible assets. These indefinite-lived intangible assets are not amortized and are tested for impairment annually, unless circumstances dictate the need for more frequent assessment. The identification and measurement of impairment of indefinite-lived intangible assets involves either an assessment of qualitative factors to determine whether events or circumstances indicate that it is more-likely-than-not that an indefinite-lived intangible asset is impaired or a quantitative assessment whereby the estimated fair value of each indefinite-lived intangible asset is compared to its carrying value. If it is more-likely-than-not that the asset is impaired, the estimated fair value of the indefinite lived intangibles will be determined using discounted cash flow estimates. If the carrying value of these assets exceeds the estimated fair value, the carrying value will be reduced to the estimated fair value. For the Company’s annual impairment test as of April 1, 2023, the Company elected to utilize the quantitative impairment testing process as permitted in the accounting guidance. The estimated fair value was determined utilizing an income approach (relief from royalty method). Significant judgment is required to estimate the fair value of the indefinite-lived intangible assets including assumptions for future revenues, discount rates, royalty rates, and other assumptions, including assumptions about secular economic and market conditions. Significant changes in these estimates and assumptions could affect the determination of fair value and/or impairment for each indefinite-lived intangible asset. As of April 1, 2023, the impairment testing resulted in estimated fair values for each indefinite-lived intangible asset that significantly exceeded the carrying values and there were no indefinite-lived intangible assets at risk of failing the quantitative impairment test.
Other Long-Lived Assets	Other Long-Lived Assets The Company reviews depreciable long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be fully recoverable. If such a change in circumstances occurs, the related estimated future undiscounted cash flows expected to result from the use of the asset group and its eventual disposition is compared to the carrying amount. If the sum of the expected cash flows is less than the carrying amount, an impairment charge is recorded. The impairment charge is measured as the amount by which the carrying amount exceeds the fair value of the asset. The fair value of impaired assets is determined using expected cash flow estimates, quoted market prices when available and appraisals as appropriate. The Company did not record any material impairment charges in 2023, 2022 or 2021.
Leases	Leases We determine if an arrangement is a lease at inception. Operating leases are included as ROU assets within other long-term assets, other accrued liabilities, and other non-current liabilities in our Consolidated Balance Sheets. Finance leases are included in property, plant, and equipment, net, other accrued liabilities, and other non-current liabilities. The Company's finance leases are immaterial. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. We use an implicit rate when readily determinable. For leases existing as of January 1, 2019, we have elected to use the remaining lease term as of the adoption date in determining the incremental borrowing rate. Our determination of the lease term may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. We have lease agreements with lease and non-lease components, which are generally accounted for separately. Additionally, for our vehicle leases, we apply a portfolio approach regarding the assumed lease term.
Accrued Insurance	Accrued Insurance The Company retains a significant portion of the risks associated with workers’ compensation, medical, automobile and general liability insurance. The Company estimates self-insurance liabilities using a number of factors, including historical claims experience, demographic factors, and other actuarial assumptions. The accrued liabilities associated with these programs are based on the Company’s estimate of the ultimate costs to settle known claims as well as claims incurred but not reported as of the balance sheet date. The Company periodically reviews the assumptions with a third party actuary to determine the adequacy of these self-insurance reserves.
Accrued Warranty	Accrued Warranty
Income Taxes	Income Taxes The Company operates within multiple taxing jurisdictions and is subject to audit in these jurisdictions. The IRS and other tax authorities routinely examine the Company’s tax returns. These audits can involve complex issues which may require an extended period of time to resolve. The Company makes adequate provisions for best estimates of exposures on previously filed tax returns. Deferred income taxes are recognized for the tax consequence of differences between financial statement carrying amounts and the tax basis of assets and liabilities by applying the currently enacted statutory tax rates in accordance with the accounting guidance for income taxes. The effect of a change in statutory tax rates is recognized in the period that includes the enactment date. Additionally, deferred tax assets are required to be reduced by a valuation allowance if it is more-likely-than-not that a portion or all of the deferred tax asset will not be realized. The Company uses factors to assess the likelihood of realization of deferred tax assets such as the forecast of future taxable income and available tax planning that could be implemented to realize the deferred tax assets. In addition, the accounting guidance prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of the tax position taken or expected to be taken in a tax return. For any amount of benefit to be recognized, it must be determined that it is more-likely-than-not that a tax position will be sustained upon examination by taxing authorities based on the technical merits of the position. The amount of benefit to be recognized is based on the Company’s assertion of the most likely outcome resulting from an examination, including resolution of any related appeals or litigation processes. Companies are required to reflect only those tax positions that are more-likely-than-not to be sustained. See Note 14 — Income Taxes for additional information.
Research and Development	Research and Development
Government Assistance	Government Assistance In 2022 we adopted Accounting Standards Update ("ASU") 2021-10, Government Assistance (Topic 832) Disclosures by Business Entities about Government Assistance, which requires footnote disclosure of assistance received from government entities. We record amounts received from government entities as a reduction of the associated expense. Amounts received related to depreciable assets are recognized as a reduction to depreciation expense. The total impact of government assistance was not material to the Company in 2023, 2022, and 2021.
Retirement Benefits	Retirement Benefits The Company maintains various defined benefit pension plans for some of its U.S. and foreign employees. The accounting guidance for retirement benefits requires the Company to recognize the funded status of its defined benefit pension and postretirement plans as an asset or liability in the Consolidated Balance Sheet. Gains or losses, prior service costs or credits, and transition assets or obligations that have not yet been included in net periodic benefit cost as of the end of the year are recognized as components of Accumulated other comprehensive loss, net of tax, within Hubbell shareholders’ equity. The Company’s policy is to fund pension costs within the ranges prescribed by applicable regulations. In addition to providing defined benefit pension benefits, the Company provides health care and life insurance benefits for some of its active and retired employees. The Company’s policy is to fund these benefits through insurance premiums or as actual expenditures are made. See also Note 12 — Retirement Benefits.
Earnings Per Share	Earnings Per Share Restricted stock granted by the Company is considered a participating security since it contains a non-forfeitable right to dividends. As a result, the earnings per share accounting guidance requires the Company to use the two-class method for calculating earnings per share. The two-class method is an earnings allocation formula that determines earnings per share for common stock and participating securities. Basic earnings per share is calculated as net income available to common shareholders divided by the weighted average number of shares of common stock outstanding. Earnings per diluted share is calculated as net income available to common shareholders divided by the weighted average number of shares outstanding of common stock plus the incremental shares outstanding assuming the exercise of dilutive stock appreciation rights and performance shares. See also Note 19 — Earnings Per Share.
Stock-Based Compensation	Stock-Based Compensation The Company recognizes the grant-date fair value of all stock-based awards on a straight-line basis over their respective requisite service periods (generally equal to an award’s vesting period). A stock-based award is considered vested for expense attribution purposes when the retention of the award is no longer contingent on providing subsequent service. Accordingly, the Company generally recognizes compensation cost immediately for awards granted to retirement-eligible individuals or over the period from the grant date to the date retirement eligibility is achieved, if less than the stated vesting period. The expense is recorded in Cost of goods sold and S&A expense in the Consolidated Statement of Income based on the recipients’ respective functions within the organization. The Company records deferred tax assets for awards that will result in deductions on its tax returns, based upon the amount of compensation cost recognized and the statutory tax rate in the jurisdiction in which it will receive a deduction. See also Note 18 — Stock-Based Compensation.
Recently Adopted Accounting Pronouncements and Issued Accounting Pronouncements Not Yet Adopted	Recently Adopted Accounting Pronouncements In September 2022, the FASB issued ASU 2022-04, "Liabilities - Supplier Finance Programs (Subtopic 405-50: Disclosure of Supplier Finance Program Obligations)", which the Company adopted in the first quarter of 2023, with the exception of the rollforward information, which is effective for the Company in 2024. Payment Services Arrangements The Company has ongoing agreements with financial institutions to facilitate the processing of vendor payables. Under these agreements, the Company pays the financial institution the stated amount of confirmed invoices from participating suppliers on their original maturity date. The terms of the vendor payables are not affected by vendors participating in these agreements. As a result, the amounts owed are presented as accounts payable Recently Issued Accounting Pronouncements Not Yet Adopted In March 2020, the FASB issued ASU No. 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting", which provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. In December 2022, the FASB issued ASU No. 2022-06 Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which extends the temporary accounting rules under Topic 848 to December 31, 2024. The Company continues to assess the impact of adopting this standard on its financial statements and the timing of adoption. In November 2023, the FASB issued ASU No. 2023-07, "Segment Reporting-Improvements to Reportable Segment Disclosures", which adds a requirement for public entities to disclose its significant segment expense categories and amounts for each reportable segment for all periods presented. This information is required to be disclosed at both interim and annual periods. In addition, this ASU requires a public entity to disclose the title and position of the Chief Operating Decision Maker ("CODM") in the consolidated financial statements. Public entities are also required to disclose how the CODM uses each reported measure of segment profit or loss to assess performance and allocate resources to the segments. The ASU is effective for public entities for fiscal years beginning after December 15, 2023, and interim periods in fiscal years beginning after December 15, 2024. The Company is assessing the impact of adopting this standard on its financial statements. In December 2023, the FASB issued ASU No. 2023-09, "Income Taxes: Improvements to Income Tax Disclosures", which enhances the disaggregation of income tax disclosures. The ASU requires public entities on an annual basis to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold equal to or greater than 5%. Public entities are required to provide an explanation of certain rate reconciling items if not otherwise evident, such as the nature, causes and judgement used to categorize the item. The ASU also requires disclosure of income taxes paid (net of refund received) detailed by federal, state/local and foreign, and amounts paid to individual jurisdictions that are equal or greater than 5% of total income taxes paid. The ASU is effective for public entities for fiscal years beginning after December 15, 2024 and for interim periods for fiscal years beginning after December 15, 2025. The Company is assessing the impact of adopting this standard on its financial statements.

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2023
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Income From Discontinued Operations, Net of Income Taxes and Balance Sheet Information for Assets and Liabilities Held for Sale	The following table presents the summarized components of income from discontinued operations, net of income taxes, for the Commercial and Industrial Lighting business: Year Ended December 31, (in millions) 2023 2022 2021 Net sales $ — $ 29.1 $ 509.4 Cost of goods sold — 27.8 403.4 Gross profit — 1.3 106.0 Selling & administrative expenses — 17.3 88.5 Operating (Loss) income — (16.0) 17.5 Gain on disposal of business — 73.9 — Other expense — (1.5) (4.1) Income from discontinued operations before income taxes — 56.4 13.4 Provision (benefit) for income taxes — 21.8 (21.1) Income from discontinued operations, net of taxes $ — $ 34.6 $ 34.5

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregated Revenue by Business Group	The following table presents disaggregated revenue by business group. Twelve Months Ended December 31, in millions 2023 2022 2021 Net sales Utility T&D Components $ 2,457.3 $ 2,218.8 $ 1,679.8 Utility Communications and Controls 804.4 652.3 654.6 Total Utility Solutions $ 3,261.7 $ 2,871.1 $ 2,334.4 Electrical Products 833.6 902.4 809.6 Connection and Bonding 652.3 608.7 525.3 Industrial Controls 438.2 337.7 257.8 Retail and Builder 187.1 228.0 267.0 Total Electrical Solutions $ 2,111.2 $ 2,076.8 $ 1,859.7 TOTAL $ 5,372.9 $ 4,947.9 $ 4,194.1 The following table presents disaggregated third-party Net sales by geographic location (on a geographic basis, the Company defines "international" as operations based outside of the United States and its possessions): Twelve Months Ended December 31, in millions 2023 2022 2021 Net sales United States $ 3,090.7 $ 2,715.8 $ 2,204.9 International 171.0 155.3 129.5 Total Utility Solutions $ 3,261.7 $ 2,871.1 $ 2,334.4 United States 1,831.7 1,820.6 1,604.9 International 279.5 256.2 254.8 Total Electrical Solutions $ 2,111.2 $ 2,076.8 $ 1,859.7 TOTAL $ 5,372.9 $ 4,947.9 $ 4,194.1

Business Acquisitions and Dis_2

Business Acquisitions and Dispositions (Tables)	12 Months Ended
	Dec. 31, 2023
Business Combination and Asset Acquisition [Abstract]
Schedule of the Fair Values of the Assets Acquired and Liabilities Assumed	The following table summarizes the preliminary fair values of the assets acquired and liabilities assumed as of the respective date of acquisition for all of the Company's 2023 acquisitions (in millions): Accounts receivable $ 71.3 Inventories 87.6 Other current assets 50.0 Property, plant and equipment 32.7 Other non-current assets 2.8 Intangible assets 604.2 Accounts payable (16.7) Other accrued liabilities (87.1) Deferred tax liabilities, net (135.9) Other non-current liabilities (11.9) Goodwill 614.7 Total Estimate of Consideration Transferred, Net of Cash Acquired $ 1,211.7 The following table summarizes the fair values of the assets acquired and liabilities assumed as of the respective date of acquisition for all of the Company's 2022 acquisitions (in millions): Tangible assets acquired $ 41.5 Intangible assets 67.3 Goodwill 114.7 Other liabilities assumed (46.4) Total Estimate of Consideration Transferred, Net of Cash Acquired $ 177.1
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The purchase price allocation to identifiable intangible assets acquired for all of the 2023 acquisitions is as follows (in millions, except useful life amounts): Estimated Fair Value Weighted Average Estimated Useful Life Patents, tradenames and trademarks $ 45.1 20 Customer relationships $ 501.1 21 Developed technology $ 8.5 10 Backlog $ 49.5 3 Total $ 604.2
Schedule of Business Acquisition, Pro Forma Information, Nonrecurring Adjustments	Those reclassifications primarily include the following, which represent the amount of increase or (decrease) to reported results to arrive at the pro-forma results (in millions, except per share amounts). Twelve Months Ended December 31, Per Diluted Share 2023 2022 2023 2022 Transaction costs incurred in 2023 (1) $ 11.2 $ (11.2) $ 0.21 $ (0.21) Intangible amortization and inventory step up (2) $ (20.1) $ (46.8) $ (0.37) $ (0.87) Interest expense (3) $ (29.3) $ (33.8) $ (0.54) $ (0.62) (1) Transaction costs incurred in 2023 have been reclassified into the comparative pro-forma 2022 period. (2) Intangible amortization and inventory step up amortization incurred in 2023 have been reclassified into the comparable pro-forma 2022 period and increased to reflect the assumption the transactions were completed on January 1, 2022. The pro-forma 2023 period includes the intangible amortization that would be incurred assuming the transactions had been completed on January 1, 2022. (3) Interest expense incurred in 2023, reflecting amounts incurred from the date of the acquisitions, has been reclassified into the pro-forma 2022 period and increased to reflect the assumption the transactions were completed on January 1, 2022. The pro-forma 2023 period includes the interest expense that would have been incurred assuming the transactions had been completed on January 1, 2022.
Schedule of Business Acquisition, Pro Forma Information	The pro-forma results were calculated by combining the results of the Company with the stand-alone results of the acquisitions for the pre-acquisition periods, as described above: Twelve Months Ended December 31, (in millions, except per share amounts) 2023 2022 Net sales $ 5,719.3 $ 5,316.5 Net income attributable to Hubbell $ 773.9 $ 450.1 Earnings Per Share: Basic $ 14.41 $ 8.35 Diluted $ 14.31 $ 8.30
Schedule of Disclosure of Long-Lived Assets Held-for-Sale	The following table presents balance sheet information of the residential lighting business' assets and liabilities held for sale: At December 31, (in millions) 2023 Cash and cash equivalents $ — Accounts receivable, net 29.8 Inventories, net 37.8 Other current assets 2.9 Assets held for sale - current $ 70.5 Property, Plant, and Equipment, net 1.6 Goodwill 63.2 Other Intangible assets, net 6.5 Other long-term assets 20.6 Assets held for sale - non-current $ 91.9 Accounts payable 1.9 Accrued salaries, wages and employee benefits 3.5 Accrued insurance 3.4 Other accrued liabilities 15.8 Liabilities held for sale - current $ 24.6 Other Non-Current Liabilities 17.5 Liabilities held for sale - non-current $ 17.5

Receivables and Allowances (Tab

Receivables and Allowances (Tables)	12 Months Ended
	Dec. 31, 2023
Accounts and Financing Receivable, after Allowance for Credit Loss, Current [Abstract]
Schedule of Components of Receivables and Allowances	Receivables consist of the following components at December 31, (in millions): 2023 2022 Trade accounts receivable $ 805.5 $ 778.0 Non-trade receivables 29.7 22.1 Accounts receivable, gross 835.2 800.1 Allowance for credit memos, returns and cash discounts (38.2) (44.2) Allowance for doubtful accounts (11.6) (14.3) Total allowances (49.8) (58.5) ACCOUNTS RECEIVABLE, NET $ 785.4 $ 741.6

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2023
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventories are classified as follows at December 31, (in millions): 2023 2022 Raw material $ 394.1 $ 302.8 Work-in-process 189.2 161.7 Finished goods 412.1 463.2 Subtotal 995.4 927.7 Excess of FIFO over LIFO cost basis (162.5) (187.0) INVENTORIES, NET $ 832.9 $ 740.7

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Changes in the carrying amounts of goodwill for the years ended December 31, 2023 and 2022, by segment, were as follows (in millions): Segment Utility Solutions Electrical Solutions Total BALANCE AT DECEMBER 31, 2021 $ 1,258.8 $ 612.5 $ 1,871.3 Current year acquisitions (1) 23.8 87.6 111.4 Foreign currency translation (6.7) (5.5) (12.2) BALANCE AT DECEMBER 31, 2022 $ 1,275.9 $ 694.6 $ 1,970.5 Prior year acquisitions (1) 1.2 2.1 3.3 Current year acquisitions (1) 614.7 — 614.7 Reclassifications to held for sale (1) — (63.2) (63.2) Foreign currency translation 5.7 2.4 8.1 BALANCE AT DECEMBER 31, 2023 $ 1,897.5 $ 635.9 $ 2,533.4 (1) Refer to Note 4 – Business Acquisitions and Dispositions for additional information.
Schedule of Identifiable Intangible Assets	Identifiable intangible assets are recorded in Other intangible assets, net in the Consolidated Balance Sheet. Identifiable intangible assets are comprised of the following (in millions): December 31, 2023 December 31, 2022 Gross Amount Accumulated Gross Amount Accumulated Definite-lived: Patents, tradenames and trademarks $ 233.7 $ (84.8) $ 187.9 $ (75.7) Customer relationships, developed technology and other 1,513.1 (500.1) 955.3 (437.8) TOTAL DEFINITE-LIVED INTANGIBLES 1,746.8 (584.9) 1,143.2 (513.5) Indefinite-lived: Tradenames and other 34.1 — 40.2 — TOTAL OTHER INTANGIBLE ASSETS $ 1,780.9 $ (584.9) $ 1,183.4 $ (513.5)

Investments (Table)

Investments (Table)	12 Months Ended
	Dec. 31, 2023
Investments [Abstract]
Schedule of Investments, Amortized Cost Basis	The following table sets forth selected data with respect to the Company’s investments at December 31, (in millions): 2023 2022 Amortized Gross Unrealized Gross Unrealized Fair Carrying Amortized Gross Unrealized Gross Unrealized Fair Carrying Available-for-sale securities $ 65.3 $ 0.3 $ (0.6) $ 65.0 $ 65.0 $ 62.6 $ 0.1 $ (1.3) $ 61.4 $ 61.4 Trading securities 11.6 11.8 — 23.4 23.4 10.2 8.6 — 18.8 18.8 TOTAL INVESTMENTS $ 76.9 $ 12.1 $ (0.6) $ 88.4 $ 88.4 $ 72.8 $ 8.7 $ (1.3) $ 80.2 $ 80.2
Schedule of Contractual Maturities of Available-For-Sale Investments	Contractual maturities of our investments in available-for-sale securities at December 31, 2023 were as follows (in millions): Amortized Cost Fair Value Available-for-sale securities Due within 1 year $ 12.7 $ 12.7 After 1 year but within 5 years 40.9 40.9 After 5 years but within 10 years 0.7 0.7 Due after 10 years 11.0 10.7 TOTAL $ 65.3 $ 65.0

Property, Plant and Equipment (

Property, Plant and Equipment (Table)	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant, and Equipment	Property, plant, and equipment, carried at cost, is summarized as follows at December 31, (in millions): 2023 2022 Land $ 34.9 $ 29.8 Buildings and improvements 249.8 212.1 Machinery, tools, and equipment 992.4 905.7 Construction-in-progress 131.6 99.0 Gross property, plant, and equipment 1,408.7 1,246.6 Less accumulated depreciation (756.1) (718.6) PROPERTY, PLANT, AND EQUIPMENT, NET $ 652.6 $ 528.0

Other Accrued Liabilities (Tabl

Other Accrued Liabilities (Table)	12 Months Ended
	Dec. 31, 2023
Accrued Liabilities [Abstract]
Schedule of Other Accrued Liabilities	Other accrued liabilities consist of the following at December 31, (in millions): 2023 2022 Customer program incentives $ 57.4 $ 87.8 Accrued income taxes 21.1 4.5 Contract liabilities - deferred revenue 111.5 45.8 Customer refund liability 18.1 14.8 Accrued warranties (1) 15.6 20.2 Current operating lease liabilities 30.6 30.5 Other 110.9 130.5 TOTAL $ 365.2 $ 334.1 (1) Refer to Note 22 – Guarantees for additional information regarding warranties.

Other Non-Current Liabilities (

Other Non-Current Liabilities (Table)	12 Months Ended
	Dec. 31, 2023
Other Liabilities, Noncurrent [Abstract]
Schedule of Other Noncurrent Liabilities	Other non-current liabilities consist of the following at December 31, (in millions): 2023 2022 Pensions $ 135.0 $ 155.3 Other post-employment benefits 14.4 14.3 Deferred tax liabilities 240.3 113.8 Accrued warranties long-term (1) 23.6 26.0 Non-current operating lease liabilities 118.8 84.9 Other 128.5 111.3 TOTAL $ 660.6 $ 505.6 (1) Refer to Note 22 – Guarantees for additional information regarding warranties.

Retirement Benefits (Tables)

Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2023
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Schedule of Changes in Benefit Obligation and the Plan Assets	The following table sets forth the reconciliation of beginning and ending balances of the benefit obligations and the plan assets for the Company’s defined benefit pension and other benefit plans at December 31, (in millions): Pension Benefits Other Benefits 2023 2022 2023 2022 Change in benefit obligation Benefit obligation at beginning of year $ 670.8 $ 937.7 $ 15.9 $ 18.9 Service cost 0.6 0.9 — — Interest cost 35.2 28.0 0.8 0.5 Plan participants’ contributions — — — — Amendments — — — — Actuarial loss/(gain) 18.1 (214.2) 0.3 (2.2) Curtailment gain — — — — Settlements — (22.5) — — Currency impact 3.2 (10.5) — — Other (0.1) (0.5) — — Benefits paid (52.9) (48.1) (0.9) (1.3) Benefit obligation at end of year $ 674.9 $ 670.8 $ 16.1 $ 15.9 Change in plan assets Fair value of plan assets at beginning of year $ 515.4 $ 765.6 $ — $ — Actual return on plan assets 50.8 (186.6) — — Employer contributions 26.5 19.8 0.9 1.3 Plan participants’ contributions — — — — Settlements — (22.5) — — Currency impact 3.3 (12.8) — — Benefits paid (52.9) (48.1) (0.9) (1.3) Fair value of plan assets at end of year $ 543.1 $ 515.4 $ — $ — FUNDED STATUS $ (131.8) $ (155.4) $ (16.1) $ (15.9) Amounts recognized in the consolidated balance sheet consist of: Prepaid pensions (included in Other long-term assets) $ 10.0 $ 6.8 $ — $ — Accrued benefit liability (short-term and long-term) (141.8) (162.2) (16.1) (15.9) NET AMOUNT RECOGNIZED IN THE CONSOLIDATED BALANCE SHEET $ (131.8) $ (155.4) $ (16.1) $ (15.9) Amounts recognized in Accumulated other comprehensive loss (income) consist of: Net actuarial loss (gain) $ 231.1 $ 244.4 $ (4.7) $ (5.5) Prior service cost (credit) 6.0 6.3 — — NET AMOUNT RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE LOSS $ 237.1 $ 250.7 $ (4.7) $ (5.5)
Schedule of Accumulated Benefit Obligations in Excess of Plan Assets	Information with respect to plans with accumulated benefit obligations in excess of plan assets is as follows, (in millions): 2023 2022 Projected benefit obligation $ 467.6 $ 468.0 Accumulated benefit obligation $ 467.6 $ 468.0 Fair value of plan assets $ 325.9 $ 305.8
Schedule of the Components of Pension and Other Benefit Costs	The following table sets forth the components of pension and other benefit costs for the years ended December 31, (in millions): Pension Benefits Other Benefits 2023 2022 2021 2023 2022 2021 Components of net periodic benefit cost: Service cost $ 0.6 $ 0.9 $ 1.0 $ — $ — $ — Interest cost 35.2 28.0 23.8 0.8 0.5 0.6 Expected return on plan assets (28.1) (30.8) (36.5) — — — Amortization of prior service cost (credit) 0.4 0.4 0.2 — — — Amortization of actuarial losses (gains) 10.4 10.8 10.8 (0.5) (0.2) (0.1) Curtailment and settlement losses — 8.8 — — — — Net periodic benefit cost $ 18.5 $ 18.1 $ (0.7) $ 0.3 $ 0.3 $ 0.5 Changes recognized in other comprehensive loss (income), before tax: Current year net actuarial loss (gain) $ (4.6) $ 2.6 $ (1.4) $ 0.3 $ (2.2) $ (4.1) Current year prior service credit — — 3.6 — — — Amortization of prior service (cost) credit (0.4) (0.4) (0.2) — — — Amortization of net actuarial (losses) gains (10.4) (10.8) (10.8) 0.6 0.2 0.1 Currency impact 1.8 (2.0) (0.2) — — — Settlement adjustment — (8.8) — — — — Curtailment adjustments — — — — — — Total recognized in other comprehensive loss (13.6) (19.4) (9.0) 0.9 (2.0) (4.0) TOTAL RECOGNIZED IN NET PERIODIC PENSION COST AND OTHER COMPREHENSIVE LOSS $ 4.9 $ (1.3) $ (9.7) $ 1.2 $ (1.7) $ (3.5)
Schedule of Assumptions Used to Determine the Projected Benefit Obligation	The following assumptions were used to determine the projected benefit obligations at the measurement date and the net periodic benefit cost for the year: Pension Benefits Other Benefits 2023 2022 2021 2023 2022 2021 Weighted-average assumptions used to determine benefit obligations at December 31, Discount rate 5.16 % 5.46 % 2.79 % 5.20 % 5.50 % 2.90 % Rate of compensation increase 0.08 % 0.08 % 0.08 % 5.00 % 3.93 % 3.87 % Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31, Discount rate 5.46 % 2.79 % 2.47 % 5.50 % 2.90 % 2.50 % Expected return on plan assets 5.68 % 4.59 % 4.66 % N/A N/A N/A Rate of compensation increase 0.08 % 0.08 % 0.24 % 3.93 % 3.87 % 3.99 %
Schedule of Health Care Cost Trend Rates	The assumed health care cost trend rates used to determine the projected postretirement benefit obligation are as follows: Other Benefits 2023 2022 2021 Assumed health care cost trend rates at December 31, Health care cost trend assumed for next year 6.8 % 7.0 % 6.2 % Rate to which the cost trend is assumed to decline 5.0 % 5.0 % 5.0 % Year that the rate reaches the ultimate trend rate 2031 2031 2028
Schedule of Allocation of Plan Assets	The Company’s combined targeted 2024 weighted average asset allocation for domestic and foreign pension plans and the actual weighted average asset allocation for domestic and foreign pension plans at December 31, 2023 and 2022 by asset category are as follows: Percentage of Plan Assets Target Actual Asset Category 2024 2023 2022 Equity securities 23 % 23 % 23 % Debt securities & Cash 77 % 77 % 77 % Alternative Investments — % — % — % TOTAL 100 % 100 % 100 %
Schedule of Changes in Fair Value of Plan Assets	The fair value of the Company’s pension plan assets at December 31, 2023 and 2022, by asset category are as follows (in millions): Quoted Prices in Active Quoted Prices in Active Significant Investments Priced Asset Category Total (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 18.0 $ 12.1 $ 5.9 $ — $ — Equity securities: Equity Mutual Funds 22.9 22.9 — — — Common Pooled Equity Funds (a) 98.5 — 98.5 — — Fixed Income Securities: U.S. Treasuries 42.4 — 42.4 — — State and Local Municipal Bonds 7.6 — 7.6 — — Sovereign Debt 6.7 — 6.7 — — Corporate Bonds (b) 120.3 — 120.3 — — Fixed Income Mutual Funds 47.0 47.0 — — — Common Pooled Fixed Income Funds (c) 176.7 — 176.7 — — Alternative Investment Funds (d) 0.8 — — — 0.8 Common Pooled Funds (e) 2.2 0.4 1.8 — — BALANCE AT DECEMBER 31, 2023 $ 543.1 $ 82.4 $ 459.9 $ — $ 0.8 Quoted Prices in Active Quoted Prices in Active Significant Investments Priced Asset Category Total (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 9.8 $ 3.5 $ 6.3 $ — $ — Equity securities: Equity Mutual Funds 21.5 21.5 — — — Common Pooled Equity Funds (a) 84.5 — 84.5 — — Fixed Income Securities: U.S. Treasuries 47.2 — 47.2 — — State and Local Municipal Bonds 6.4 — 6.4 — — Sovereign Debt 4.9 — 4.9 — — Corporate Bonds (b) 105.5 — 105.5 — — Fixed Income Mutual Funds 41.8 41.8 — — — Common Pooled Fixed Income Funds (c) 174.2 — 148.7 — 25.5 Alternative Investment Funds (d) 2.1 — — — 2.1 Common Pooled Funds (e) 17.5 0.4 17.1 — — BALANCE AT DECEMBER 31, 2022 $ 515.4 $ 67.2 $ 420.6 $ — $ 27.6 (a) Investments in Common Pooled Equity Funds, including funds and fund products investing in various equity securities. (b) Includes primarily investment grade bonds from diverse industries (c) Investments in Common Pooled Fixed Income Funds, including funds and fund products investing in various fixed income investments (d) Includes investments in hedge funds, including fund of funds products and open-end mutual funds (e) Investments in Common Pooled Funds, consisting of equities and fixed income securities
Schedule of Expected Benefit Payments	The following domestic and foreign benefit payments, which reflect future service, as appropriate, are expected to be paid as follows (in millions): Pension Benefits Other Benefits 2024 $ 53.0 $ 1.7 2025 $ 53.3 $ 1.6 2026 $ 53.2 $ 1.5 2027 $ 52.6 $ 1.4 2028 $ 52.1 $ 1.3 2029-2033 $ 251.2 $ 5.5

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Schedule of Debt	The following table sets forth the Company’s long-term debt at December 31, (in millions): Maturity 2023 2022 Senior notes at 3.35% 2026 $ 398.6 $ 397.9 Senior notes at 3.15% 2027 298.0 297.5 Senior notes at 3.50% 2028 447.0 446.2 Senior notes at 2.300% 2031 296.7 296.3 Term loan, net of current portion of $15 million 2026 582.9 — TOTAL LONG-TERM DEBT (a) $ 2,023.2 $ 1,437.9 (a) Long-term debt is presented net of debt issuance costs and unamortized discounts. Other information related to short-term debt at December 31, is summarized below: 2023 2022 Weighted average interest rate on short-term debt: At year end 5.66 % 2.57 %

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Selected Data with Respect to the Company's Income Tax Provision	The following table sets forth selected data with respect to the Company’s income tax provisions of continuing operations for the years ended December 31, (in millions): 2023 2022 2021 Income before income taxes: United States $ 848.0 $ 528.9 $ 347.5 International 135.3 128.1 111.8 TOTAL INCOME BEFORE INCOME TAXES $ 983.3 $ 657.0 $ 459.3 Provision for income taxes — current: Federal $ 165.6 $ 120.3 $ 43.3 State 35.6 24.2 13.0 International 32.3 23.5 22.7 Total provision — current 233.5 168.0 79.0 Provision for income taxes — deferred: Federal (8.5) (26.2) 8.8 State (8.0) (3.9) 1.9 International 0.3 2.3 (1.5) Total provision — deferred (16.2) (27.8) 9.2 TOTAL PROVISION FOR INCOME TAXES $ 217.3 $ 140.2 $ 88.2
Schedule of Deferred Tax Assets and Liabilities	Deferred tax assets and liabilities result from differences in the basis of assets and liabilities for tax and financial statement purposes. The components of the deferred tax assets/(liabilities) of continuing operations at December 31, were as follows (in millions): 2023 2022 Deferred tax assets: Inventories $ 12.0 $ 9.6 Lease liabilities 42.5 27.4 Income tax credits 26.1 22.8 Accrued liabilities 42.5 40.8 Pension 32.2 38.9 Post retirement and post employment benefits 3.9 4.5 Stock-based compensation 7.4 6.9 Loss carryforwards 12.7 14.2 Capitalized research expenditures 40.0 18.4 Miscellaneous other 25.0 16.4 Gross deferred tax assets 244.3 199.9 Valuation allowance (37.4) (32.2) Total deferred tax assets, net of valuation allowance 206.9 167.7 Deferred tax liabilities: Liability on undistributed foreign earnings (9.4) (7.0) Goodwill and intangibles (329.0) (185.0) Right-of-use assets (41.8) (26.1) Property, plant, and equipment (59.8) (57.9) Total deferred tax liabilities (440.0) (276.0) TOTAL NET DEFERRED TAX LIABILITY $ (233.1) $ (108.3) Deferred taxes are reflected in the Consolidated Balance Sheet as follows: Non-current tax assets (included in Other long-term assets) 7.2 5.5 Non-current tax liabilities (included in Other Non-Current Liabilities) (240.3) (113.8) TOTAL NET DEFERRED TAX LIABILITY $ (233.1) $ (108.3)
Summary of Income Tax Examinations	The following tax years, by major jurisdiction, are still subject to examination by taxing authorities: Jurisdiction Open Years United States 2020-2023 UK 2021-2023 Puerto Rico 2019-2023 Canada 2019-2023
Schedule of Reconciliation of Beginning and Ending Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in millions): 2023 2022 2021 Unrecognized tax benefits at beginning of year $ 42.1 $ 41.2 $ 47.6 Additions based on tax positions relating to the current year 10.4 12.1 6.1 Reductions based on expiration of statute of limitations (7.6) (4.8) (10.3) Additions/(Subtractions) to tax positions relating to previous years 2.8 (6.2) (2.2) Settlements (0.7) (0.2) — TOTAL UNRECOGNIZED TAX BENEFITS $ 47.0 $ 42.1 $ 41.2
Schedule of Effective Income Tax Rate Reconciliation	The consolidated effective income tax rate varied from the United States federal statutory income tax rate of continuing operations for the years ended December 31, as follows: 2023 2022 2021 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % State income taxes, net of federal benefit 2.2 2.4 2.5 Foreign income taxes 0.4 (0.2) (0.5) Federal R&D Credit (0.7) (0.8) (1.4) Other, net (0.8) (1.1) (2.4) CONSOLIDATED EFFECTIVE INCOME TAX RATE 22.1 % 21.3 % 19.2 %

Financial Instruments and Fai_2

Financial Instruments and Fair Value Measurement (Tables)	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Accounted for at Fair Value	The following tables show, by level within the fair value hierarchy, the Company’s financial assets and liabilities that are accounted for at fair value on a recurring basis at December 31, 2023 and 2022 (in millions): Asset (Liability) Quoted Prices in Active Markets for Identical Assets (Level 1) Quoted Prices in Active Markets for Similar Assets (Level 2) Unobservable inputs for which little or no market data exists (Level 3) Total Money market funds (a) $ 105.1 $ — $ — $ 105.1 Available for sale investments — 65.0 — 65.0 Trading securities 23.4 — — 23.4 Deferred compensation plan liabilities (23.4) — — (23.4) Derivatives: Forward exchange contracts-(Liabilities) (c) — (0.5) — (0.5) BALANCE AT DECEMBER 31, 2023 $ 105.1 $ 64.5 $ — $ 169.6 Asset (Liability) Quoted Prices in Active Markets for Identical Assets (Level 1) Quoted Prices in Active Markets for Similar Assets (Level 2) Unobservable inputs for which little or no market data exists (Level 3) Total Money market funds (a) $ 147.9 $ — $ — $ 147.9 Time Deposits (a) — 4.8 — 4.8 Available-for-sale investments — 61.4 — 61.4 Trading securities 18.8 — — 18.8 Deferred compensation plan liabilities (18.8) — — (18.8) Derivatives: Forward exchange contracts-Assets (b) — 1.1 — 1.1 BALANCE AT DECEMBER 31, 2022 $ 147.9 $ 67.3 $ — $ 215.2 (a) Money market funds and time deposits are included in Cash and cash equivalents in the Consolidated Balance Sheet. (b) Forward exchange contracts-Assets are reflected in Other current assets in the Consolidated Balance Sheet. (c) Forward exchange contracts-(Liabilities) are reflected in Other accrued liabilities in the Consolidated Balance Sheet.

Capital Stock (Tables)

Capital Stock (Tables)	12 Months Ended
	Dec. 31, 2023
Stockholders' Equity Note [Abstract]
Schedule of Activity in the Company's Common Shares Outstanding	Activity in the Company’s common shares outstanding is set forth below for the three years ended December 31, 2023 (in thousands): Common Stock OUTSTANDING AT DECEMBER 31, 2020 54,383 Exercise of stock appreciation rights 147 Director compensation arrangements, net 7 Restricted/performance shares activity, net of forfeitures 101 Acquisition/surrender of shares (120) OUTSTANDING AT DECEMBER 31, 2021 54,518 Exercise of stock appreciation rights 62 Director compensation arrangements, net 6 Restricted/performance shares activity, net of forfeitures 86 Acquisition/surrender of shares (983) OUTSTANDING AT DECEMBER 31, 2022 53,689 Exercise of stock appreciation rights 77 Director compensation arrangements, net 4 Restricted/performance shares activity, net of forfeitures 127 Acquisition/surrender of shares (167) OUTSTANDING AT DECEMBER 31, 2023 53,730
Schedule of Shares of the Company's Reserved Common Stock	Shares of the Company’s common stock were reserved at December 31, 2023 as follows (in thousands): Common Stock Future grant of stock-based compensation 1,305 Shares reserved under other equity compensation plans 124 TOTAL 1,429

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Activity Related to Employee and Non-Employee Restricted Stock	Activity related to both employee and non-employee restricted stock for the year ended December 31, 2023 is as follows (in thousands, except per share amounts): Shares Weighted Average Grant Date Fair Value/Share RESTRICTED STOCK AT DECEMBER 31, 2022 179 $ 154.09 Shares granted 56 249.36 Shares vested (60) 161.35 Shares forfeited (6) 194.65 RESTRICTED STOCK AT DECEMBER 31, 2023 169 $ 181.29
Schedule of Stock Appreciation Rights	Activity related to SARs for the year ended December 31, 2023 is as follows (in thousands, except per share amounts): Number of Rights Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value OUTSTANDING AT DECEMBER 31, 2022 779 $ 144.66 Granted 101 247.26 Exercised (237) 129.12 Forfeited (14) 200.89 Canceled (2) 111.60 OUTSTANDING AT DECEMBER 31, 2023 627 $ 165.84 6.7 years $ 102,333 EXERCISABLE AT DECEMBER 31, 2023 397 $ 142.04 5.7 years $ 74,257
Schedule of the Weighted-Average Assumption Used in Estimating Fair Value of Stock Appreciation Rights	The following table summarizes the weighted-average assumptions used in estimating the fair value of the SARs granted during the years 2023, 2022 and 2021: Grant Date Expected Dividend Yield Expected Volatility Risk Free Interest Rate Expected Term Weighted Avg. Grant Date Fair Value of 1 SAR 2023 1.8 % 28.0 % 3.7 % 4.9 years $ 62.79 2022 2.1 % 27.4 % 1.9 % 4.9 years $ 39.68 2021 2.4 % 26.5 % 0.6 % 5.5 years $ 29.58
Schedule of the Attributes of the Performance Shares Granted During the Period	The following table summarizes the related assumptions used to determine the fair values of the performance share awards with a market condition granted during February 2023, 2022 and 2021: Grant Date Stock Price on Measurement Date Dividend Yield Expected Volatility Risk Free Interest Rate Expected Term Weighted Avg. Grant Date Fair Value February 2023 $241.17 1.9% 39.4% 4.1% 2.9 years $279.47 February 2022 $185.87 2.3% 39.7% 1.6% 2.9 years $221.94 February 2021 $163.26 2.4% 40.6% 0.2% 3 years $198.89 Grant Date Fair Value Performance Period Payout Range February 2023 $230.64 Jan 2023 - Dec 2025 0-200% February 2022 $174.48 Jan 2022 - Dec 2024 0-200% February 2021 $151.92 Jan 2021 - Dec 2023 0-200%

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The following table sets forth the computation of earnings per share for the three years ended December 31 (in millions, except per share amounts): 2023 2022 2021 Numerator: Net income from continuing operations attributable to Hubbell Incorporated $ 759.8 $ 511.3 $ 365.0 Less: Earnings allocated to participating securities (1.8) (1.3) (1.1) Net income from continuing operations available to common shareholders $ 758.0 $ 510.0 $ 363.9 Net income from discontinued operations attributable to Hubbell Incorporated $ — $ 34.6 $ 34.5 Less: Earnings allocated to participating securities — (0.1) (0.1) Net income from discontinued operations available to common shareholders $ — $ 34.5 $ 34.4 Net income attributable to Hubbell Incorporated $ 759.8 $ 545.9 $ 399.5 Less: Earnings allocated to participating securities (1.8) (1.4) (1.2) Net income available to common shareholders $ 758.0 $ 544.5 $ 398.3 Denominator: Average number of common shares outstanding 53.6 53.7 54.3 Potential dilutive shares 0.4 0.4 0.4 Average number of diluted shares outstanding 54.0 54.1 54.7 Basic earnings per share: Basic earnings per share from continuing operations $ 14.14 $ 9.49 $ 6.70 Basic earnings per share from discontinued operations — 0.64 0.63 Basic earnings per share $ 14.14 $ 10.13 $ 7.33 Diluted earnings per share: Diluted earnings per share from continuing operations $ 14.05 $ 9.43 $ 6.66 Diluted earnings per share from discontinued operations — 0.64 0.62 Diluted earnings per share $ 14.05 $ 10.07 $ 7.28

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of the Changes in Accumulated Other Comprehensive Loss (Net of Tax)	A summary of the changes in Accumulated other comprehensive loss (net of tax) for the three years ended December 31, 2023 is provided below (in millions): (Debit) credit Cash Flow Unrealized Pension and Cumulative Total BALANCE AT DECEMBER 31, 2020 $ (0.7) $ 1.0 $ (212.0) $ (117.5) $ (329.2) Other comprehensive income (loss) before reclassifications 0.4 (0.4) 1.1 (11.5) (10.4) Amounts reclassified from accumulated other comprehensive loss 0.7 — 8.1 — 8.8 Current period other comprehensive income (loss) 1.1 (0.4) 9.2 (11.5) (1.6) BALANCE AT DECEMBER 31, 2021 $ 0.4 $ 0.6 $ (202.8) $ (129.0) $ (330.8) Other comprehensive income (loss) before reclassifications 1.2 (1.4) (0.6) (27.9) (28.7) Amounts reclassified from accumulated other comprehensive loss (1.0) — 14.8 0.5 14.3 Current period other comprehensive income (loss) 0.2 (1.4) 14.2 (27.4) (14.4) BALANCE AT DECEMBER 31, 2022 $ 0.6 $ (0.8) $ (188.6) $ (156.4) $ (345.2) Other comprehensive income (loss) before reclassifications (0.3) 0.6 2.5 22.9 25.7 Amounts reclassified from accumulated other comprehensive loss (0.6) — 7.7 — 7.1 Current period other comprehensive income (loss) (0.9) 0.6 10.2 22.9 32.8 BALANCE AT DECEMBER 31, 2023 $ (0.3) $ (0.2) $ (178.4) $ (133.5) $ (312.4)
Schedule of the Gain (Loss) Reclassifications Out of Accumulated Other Comprehensive Loss	A summary of the gain (loss) reclassifications out of Accumulated other comprehensive loss for the two years ended December 31 is provided below (in millions): Details about Accumulated Other Comprehensive Loss Components 2023 2022 Location of Gain (Loss) Cash flow hedges gain (loss): Forward exchange contracts $ — $ — Net Sales 0.9 1.2 Cost of goods sold 0.9 1.2 Total before tax (0.3) (0.2) Tax (expense) benefit $ 0.6 $ 1.0 Gain (loss) net of tax Amortization of defined benefit pension and post retirement benefit items: Prior-service credits $ (0.4) (a) $ (0.4) (a) Actuarial gains/(losses) (9.8) (a) (10.6) (a) Settlement and curtailment losses — (a) (8.8) (a) (10.2) (19.8) Total before tax 2.5 5.0 Tax benefit (expense) $ (7.7) $ (14.8) (Loss) gain net of tax Reclassification of currency translation gain $ — $ (0.5) Gain on disposition of business (Note 2) — — Tax benefit (expense) — (0.5) Gain (loss) net of tax Gains (losses) reclassified into earnings $ (7.1) $ (14.3) (Loss) gain net of tax (a) These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 12 — Retirement Benefits for additional details).

Industry Segments and Geograp_2

Industry Segments and Geographic Area Information (Tables)	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Schedule of Industry Segment Data	INDUSTRY SEGMENT DATA 2023 2022 2021 Net Sales: Utility Solutions $ 3,261.7 $ 2,871.1 $ 2,334.4 Electrical Solutions 2,111.2 2,076.8 1,859.7 TOTAL NET SALES $ 5,372.9 $ 4,947.9 $ 4,194.1 Operating Income: Utility Solutions $ 706.6 $ 438.2 $ 284.1 Electrical Solutions 331.9 270.9 248.2 Operating Income $ 1,038.5 $ 709.1 $ 532.3 Loss on disposition of business (Note 4) — — (6.9) Loss on extinguishment of debt (Note 13) — — (16.8) Pension charge (Note 12) — (7.0) — Interest expense, net (36.7) (49.6) (54.7) Other (expense) income, net (18.5) 4.5 5.4 INCOME BEFORE INCOME TAXES $ 983.3 $ 657.0 $ 459.3 Assets: Utility Solutions $ 4,601.1 $ 3,011.9 $ 2,823.8 Electrical Solutions 1,923.1 1,972.9 2,142.1 General Corporate 389.8 417.8 315.6 TOTAL ASSETS (1) $ 6,914.0 $ 5,402.6 $ 5,281.5 Capital Expenditures: Utility Solutions $ 97.3 $ 86.9 $ 55.8 Electrical Solutions 64.8 39.5 31.1 General Corporate 3.6 2.9 3.3 TOTAL CAPITAL EXPENDITURES $ 165.7 $ 129.3 $ 90.2 Depreciation and Amortization: Utility Solutions $ 103.4 $ 99.2 $ 108.5 Electrical Solutions 46.3 49.3 40.6 TOTAL DEPRECIATION AND AMORTIZATION $ 149.7 $ 148.5 $ 149.1
Schedule of Geographic Area Data	GEOGRAPHIC AREA DATA 2023 2022 2021 Net Sales: United States $ 4,922.4 $ 4,536.4 $ 3,809.8 International 450.5 411.5 384.3 TOTAL NET SALES $ 5,372.9 $ 4,947.9 $ 4,194.1 Operating Income: United States $ 937.0 $ 598.5 $ 439.6 International 101.5 110.6 92.7 TOTAL OPERATING INCOME $ 1,038.5 $ 709.1 $ 532.3 Long-lived Assets: United States $ 4,250.7 $ 2,983.5 $ 3,038.1 International 488.8 392.3 359.0 TOTAL LONG-LIVED ASSETS (1) $ 4,739.5 $ 3,375.8 $ 3,397.1 (1) Total Assets and Long-lived assets attributable to the Company's formerly owned Commercial and Industrial Lighting business, totaling $356.6 million and $177.1 million were included in total assets held for sale, and noncurrent portion respectively as of December 31, 2021 on the Company's Consolidated Balance Sheets. See Note 2, Discontinued Operations, for further information on the Company's sale of the C&I Lighting business.

Guarantees (Tables)

Guarantees (Tables)	12 Months Ended
	Dec. 31, 2023
Standard Product Warranty Disclosure [Abstract]
Schedule of Changes in the Accrued Product Warranties	Changes in the accrual for product warranties for the two years ended December 31 are set forth below (in millions): BALANCE AT DECEMBER 31, 2021 $ 66.1 Provision 12.7 Expenditures/other (32.6) BALANCE AT DECEMBER 31, 2022 $ 46.2 Provision 6.1 Expenditures/other (13.1) BALANCE AT DECEMBER 31, 2023 (a) $ 39.2 (a) Refer to Note 10 – Other Accrued Liabilities and Note 11 – Other Non-Current Liabilities for a breakout of short-term and long-term warranties.

Restructuring Costs (Tables)

Restructuring Costs (Tables)	12 Months Ended
	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Costs	Pre-tax restructuring costs incurred in each of our segments and the location of the costs in the Consolidated Statement of Income for the years ended December 31, 2023, 2022 and 2021 are as follows (in millions): Twelve Months Ended December 31, 2023 Twelve Months Ended December 31, 2022 Twelve Months Ended December 31, 2021 Utility Solutions Electrical Solutions Total Utility Solutions Electrical Solutions Total Utility Solutions Electrical Solutions Total Restructuring costs Cost of goods sold $ 2.7 $ 1.7 $ 4.4 $ 4.5 $ 5.4 $ 9.9 $ 1.3 $ 1.1 $ 2.4 S&A expense 0.2 0.8 1.0 (0.5) 0.9 0.4 1.1 0.4 1.5 Total restructuring costs $ 2.9 $ 2.5 $ 5.4 $ 4.0 $ 6.3 $ 10.3 $ 2.4 $ 1.5 $ 3.9
Schedule of Restructuring Reserve by Type of Cost	The following table summarizes the accrued liabilities for our restructuring actions (in millions): Beginning Accrued Pre-tax Restructuring Costs Utilization and Ending Accrued 2023 Restructuring Actions Severance $ — $ 0.9 $ — $ 0.9 Asset write-downs — — — — Facility closure and other costs — 0.3 (0.3) — Total 2023 Restructuring Actions $ — $ 1.2 $ (0.3) $ 0.9 2022 and Prior Restructuring Actions Severance $ 7.5 $ 0.3 $ (4.8) $ 3.0 Asset write-downs — — — — Facility closure and other costs 0.4 3.9 (4.2) 0.1 Total 2022 and Prior Restructuring Actions $ 7.9 $ 4.2 $ (9.0) $ 3.1 Total Restructuring Actions $ 7.9 $ 5.4 $ (9.3) $ 4.0 The actual and expected pre-tax costs for our restructuring actions are as follows (in millions): Expected Costs Costs incurred in 2021 Costs incurred in 2022 Costs incurred in 2023 Remaining costs at 12/31/23 2023 Restructuring Actions Utility Solutions $ 2.2 $ — $ — $ — $ 2.2 Electrical Solutions 3.9 — — 1.2 2.7 Total 2023 Restructuring Actions $ 6.1 $ — $ — $ 1.2 $ 4.9 2022 Restructuring Actions Utility Solutions $ 8.6 $ — $ 4.7 $ 2.9 $ 1.0 Electrical Solutions 10.8 — 6.5 1.3 3.0 Total 2022 Restructuring Actions $ 19.4 $ — $ 11.2 $ 4.2 $ 4.0 2021 and Prior Restructuring Actions Utility Solutions $ 1.7 $ 2.4 $ (0.7) $ — $ — Electrical Solutions 1.3 1.5 (0.2) — — Total 2021 and Prior Restructuring Actions $ 3.0 $ 3.9 $ (0.9) $ — $ — Total Restructuring Actions $ 28.5 $ 3.9 $ 10.3 $ 5.4 $ 8.9

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Schedule of Amounts Recognized for Operating Leases in the Consolidated Balance Sheets	Amounts recognized for operating leases in the Consolidated Balance Sheets is as follows (in millions): December 31, 2023 December 31, 2022 Operating lease right-of-use assets $ 147.1 $ 108.0 TOTAL ASSETS $ 147.1 $ 108.0 Other accrued liabilities $ 30.6 $ 30.5 Other non-current liabilities 118.8 84.9 TOTAL LIABILITIES $ 149.4 $ 115.4
Schedule of Maturities of lease liabilities	Future maturities of our operating lease liabilities as of December 31, 2023 are as follows (in millions): 2024 2025 2026 2027 2028 Thereafter Total Payments Imputed Interest Total Operating Leases 36.2 32.9 27.1 23.8 20.5 27.0 167.5 (18.1) $149.4 Future maturities of our operating lease liabilities as of December 31, 2022 are as follows (in millions): 2023 2024 2025 2026 2027 Thereafter Total Payments Imputed Interest Total Operating Leases 33.8 23.9 17.7 14.3 12.3 24.5 126.5 (11.1) $115.4

Significant Accounting Polici_3

Significant Accounting Policies - Narrative (Details) $ in Millions			12 Months Ended
	Apr. 01, 2023 reporting_unit	Feb. 01, 2022 USD ($)	Dec. 31, 2023 USD ($) venture	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Basis Of Presentation [Abstract]
Total net cash consideration			$ 0	$ 332.8	$ 8.5
Principles Of Consolidation [Abstract]
Number of joint ventures | venture			2
Assets And Liabilities Held For Sale [Abstract]
Disposal of recognition sale within term (in years)			1 year
Disposal of recognition sale of beyond term (in years)			1 year
Recognition Of Revenue [Abstract]
Revenue from service contracts and post-shipment performance obligations (as a percent)			2%
Customer returns as a percentage of gross sales (as a percent)			1%
Investments [Abstract]
Investments classified as held-to-maturity			$ 0	0
Inventories [Abstract]
Percentage of LIFO inventory (as a percent)			45%
Capitalized Computer Software, Net [Abstract]
Capitalized computer software costs, net of amortization			$ 5.8	7
Amortization expense			$ 4.3	6.6	9.6
Goodwill Annual Impairment Test [Abstract]
Number of reporting units, step-zero not applied | reporting_unit	4
Fair value in excess of carrying amount (as a percent)	47%
Percentage of definite-lived intangible assets under accelerated amortization method (approximate) (as a percent)			85%
Impairment of intangible assets, finite-lived			$ 0	$ 0	$ 0
Research and Development Expense [Abstract]
Research and development expense as a percentage of cost of goods sold (as a percent)			2%	2%	2%
Recently Adopted Accounting Pronouncements and Issued Accounting Pronouncements Not Yet Adopted [Abstract]
Supplier Finance Program, Obligation, Current, Statement of Financial Position [Extensible Enumeration]			Accounts payable	Accounts payable
Commercial Card Program
Recently Adopted Accounting Pronouncements and Issued Accounting Pronouncements Not Yet Adopted [Abstract]
Payment terms					15 days
Termination notice period					60 days
Supplier finance program, obligation			$ 2	$ 1.9
Payment Services Arrangement
Recently Adopted Accounting Pronouncements and Issued Accounting Pronouncements Not Yet Adopted [Abstract]
Supplier finance program, obligation			$ 101.3	$ 91.9
Minimum
Goodwill Annual Impairment Test [Abstract]
Useful life, intangible assets (in years)			5 years
Maximum
Goodwill Annual Impairment Test [Abstract]
Useful life, intangible assets (in years)			30 years
Capitalized Computer Software Costs | Minimum
Capitalized Computer Software, Net [Abstract]
Depreciable lives (in years)			3 years
Capitalized Computer Software Costs | Maximum
Capitalized Computer Software, Net [Abstract]
Depreciable lives (in years)			5 years
Joint Venture In Hong Kong
Principles Of Consolidation [Abstract]
Ownership (as a percent)			50%
Commercial and Industrial Lighting Business | Definitive Agreement
Basis Of Presentation [Abstract]
Disposal, revenue					$ 509.4
Discontinued Operations, Disposed of by Sale | Commercial and Industrial Lighting Business
Basis Of Presentation [Abstract]
Total net cash consideration		$ 332.8

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Feb. 01, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total net cash consideration		$ 0	$ 332.8	$ 8.5
Commercial and Industrial Lighting Business | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Provision (benefit) for income taxes		0	21.8	$ (21.1)
Commercial and Industrial Lighting Business | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total net cash consideration	$ 332.8
Administrative and operational services for a period (in months)	12 months
Income from service			13.3
Transaction and separation costs, net of tax		$ 0	$ 8.8

Discontinued Operations - Sched

Discontinued Operations - Schedule of Income From Discontinued Operations, Net of Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of taxes	$ 0	$ 34.6	$ 34.5
Discontinued Operations, Disposed of by Sale | Commercial and Industrial Lighting Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	29.1	509.4
Cost of goods sold	0	27.8	403.4
Gross profit	0	1.3	106
Selling & administrative expenses	0	17.3	88.5
Operating (Loss) income	0	(16)	17.5
Gain on disposal of business	0	73.9	0
Other expense	0	(1.5)	(4.1)
Income from discontinued operations before income taxes	0	56.4	13.4
Provision (benefit) for income taxes	0	21.8	(21.1)
Income from discontinued operations, net of taxes	$ 0	$ 34.6	$ 34.5

Revenue - Narrative (Details)

Revenue - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Contract liability	$ 118.6	$ 45.8
Increase (decrease) in net contract liabilities	72.8
Increase in current year deferrals, net	46.7
Acquisition related deferrals	68.1
Revenue recognized	42
Acquisition related contract assets	45.7
Contract assets	$ 41.6

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 5,372.9	$ 4,947.9	$ 4,194.1
United States
Disaggregation of Revenue [Line Items]
Net sales	4,922.4	4,536.4	3,809.8
International
Disaggregation of Revenue [Line Items]
Net sales	450.5	411.5	384.3
Utility Solutions
Disaggregation of Revenue [Line Items]
Net sales	3,261.7	2,871.1	2,334.4
Utility Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales	3,090.7	2,715.8	2,204.9
Utility Solutions | International
Disaggregation of Revenue [Line Items]
Net sales	171	155.3	129.5
Utility Solutions | Utility T&D Components
Disaggregation of Revenue [Line Items]
Net sales	2,457.3	2,218.8	1,679.8
Utility Solutions | Utility Communications and Controls
Disaggregation of Revenue [Line Items]
Net sales	804.4	652.3	654.6
Electrical Solutions
Disaggregation of Revenue [Line Items]
Net sales	2,111.2	2,076.8	1,859.7
Electrical Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales	1,831.7	1,820.6	1,604.9
Electrical Solutions | International
Disaggregation of Revenue [Line Items]
Net sales	279.5	256.2	254.8
Electrical Solutions | Electrical Products
Disaggregation of Revenue [Line Items]
Net sales	833.6	902.4	809.6
Electrical Solutions | Connection and Bonding
Disaggregation of Revenue [Line Items]
Net sales	652.3	608.7	525.3
Electrical Solutions | Industrial Controls
Disaggregation of Revenue [Line Items]
Net sales	438.2	337.7	257.8
Electrical Solutions | Retail and Builder
Disaggregation of Revenue [Line Items]
Net sales	$ 187.1	$ 228	$ 267

Revenue - Unsatisfied Performan

Revenue - Unsatisfied Performance Obligations (Details) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 $ in Millions	Dec. 31, 2023 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unsatisfied performance obligation	$ 200
Unsatisfied performance obligation, period of recognition (in years)	2 years

Business Acquisitions and Dis_3

Business Acquisitions and Dispositions - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended					12 Months Ended
	Jun. 30, 2021	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Acquisitions, net of cash acquired							$ 1,211.7	$ 177.1	$ (0.1)
Goodwill			$ 2,533.4		$ 1,970.5		2,533.4	1,970.5	1,871.3
Gain (loss) on disposition of business							0	0	$ (6.9)
Forecast
Business Acquisition [Line Items]
Amount from sale of business		$ 131
Forecast | Minimum
Business Acquisition [Line Items]
Gain (loss) on disposition of business		1
Forecast | Maximum
Business Acquisition [Line Items]
Gain (loss) on disposition of business		$ 10
Disposal by Sale | Consumer Analytics Solutions
Business Acquisition [Line Items]
Amount from sale of business	$ 9.8
Dispositions, total assets	15.9
Other Intangible assets, net	8.7
Goodwill	1.9
Dispositions, liabilities	1.5
Gain (loss) on disposition of business	$ (6.9)
Northern Star Holdings, Inc.
Business Acquisition [Line Items]
Acquisitions, net of cash acquired			1,100
Other Intangible assets, net			569.9				569.9
Goodwill			522.8				522.8
Northern Star Holdings, Inc. | Customer Relationships, Tradenames And Backlog
Business Acquisition [Line Items]
Other Intangible assets, net			$ 569.9				569.9
Weighted average estimated useful life (in years)			19 years
Indústria Eletromecânica Balestro Ltda
Business Acquisition [Line Items]
Acquisitions, net of cash acquired			$ 88
Other Intangible assets, net			5.6				5.6
Goodwill			68.7				68.7
Indústria Eletromecânica Balestro Ltda | Customer Relationships, Tradenames And Backlog
Business Acquisition [Line Items]
Other Intangible assets, net			$ 5.6				5.6
Weighted average estimated useful life (in years)			21 years
EI Electronics LLC
Business Acquisition [Line Items]
Acquisitions, net of cash acquired				$ 60
Other Intangible assets, net				28.7
Goodwill				23.2
EI Electronics LLC | Customer Relationships, Developed Technology, Tradenames, and Backlog
Business Acquisition [Line Items]
Other Intangible assets, net				$ 28.7
Weighted average estimated useful life (in years)				14 years
PCX Holdings LLC
Business Acquisition [Line Items]
Acquisitions, net of cash acquired						$ 112.8
Other Intangible assets, net						49.1
Goodwill						77.7
PCX Holdings LLC | Customer Relationships, Tradenames And Backlog
Business Acquisition [Line Items]
Other Intangible assets, net						$ 49.1
Weighted average estimated useful life (in years)						11 years
Ripley Tools
Business Acquisition [Line Items]
Acquisitions, net of cash acquired						$ 50.1
Other Intangible assets, net						18.2
Goodwill						25
Ripley Tools | Customer Relationships And Tradename
Business Acquisition [Line Items]
Other Intangible assets, net						$ 18.2
Weighted average estimated useful life (in years)						16 years
REF
Business Acquisition [Line Items]
Acquisitions, net of cash acquired					14.1
Goodwill					12			12
Deductible goodwill					$ 0			$ 0
Balestro Acquisition
Business Acquisition [Line Items]
Deferred purchase price							7.2
Systems Control
Business Acquisition [Line Items]
Deductible goodwill			$ 138				138
2023 Acquisitions
Business Acquisition [Line Items]
Goodwill			$ 614.7				614.7
Contributed sales							41.4
Contributed operating income							$ 0

Business Acquisitions and Dis_4

Business Acquisitions and Dispositions - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Intangible assets	$ 604.2
Goodwill	2,533.4	$ 1,970.5	$ 1,871.3
2023 Acquisitions
Business Acquisition [Line Items]
Accounts receivable	71.3
Inventories	87.6
Other current assets	50
Property, plant and equipment	32.7
Other non-current assets	2.8
Intangible assets	604.2
Accounts payable	(16.7)
Other accrued liabilities	(87.1)
Deferred tax liabilities, net	(135.9)
Other non-current liabilities	(11.9)
Goodwill	614.7
Total Estimate of Consideration Transferred, Net of Cash Acquired	1,211.7
2022 Acquisitions
Business Acquisition [Line Items]
Tangible assets acquired	41.5
Intangible assets	67.3
Goodwill	114.7
Other liabilities assumed	46.4
Total Estimate of Consideration Transferred, Net of Cash Acquired	$ 177.1

Business Acquisitions and Dis_5

Business Acquisitions and Dispositions - Summary of Recognized Identified Assets Acquired and Liabilities Assumed (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Estimated Fair Value	$ 604.2
Patents, tradenames and trademarks
Business Acquisition [Line Items]
Estimated Fair Value	$ 45.1
Weighted Average Estimated Useful Life	20 years
Customer relationships
Business Acquisition [Line Items]
Estimated Fair Value	$ 501.1
Weighted Average Estimated Useful Life	21 years
Developed technology
Business Acquisition [Line Items]
Estimated Fair Value	$ 8.5
Weighted Average Estimated Useful Life	10 years
Backlog
Business Acquisition [Line Items]
Estimated Fair Value	$ 49.5
Weighted Average Estimated Useful Life	3 years

Business Acquisitions and Dis_6

Business Acquisitions and Dispositions - Summary of Business Acquisition, Pro Forma Information, Nonrecurring Adjustments (Details) - 2023 Acquisitions - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Transaction costs incurred	$ 11.2	$ (11.2)
Transaction costs incurred (in dollars per share)	$ 0.21	$ (0.21)
Intangible amortization and inventory step up	$ (20.1)	$ (46.8)
Intangible amortization and inventory step up (in dollars per share)	$ (0.37)	$ (0.87)
Interest expense	$ (29.3)	$ (33.8)
Interest expense (in dollars per share)	$ (0.54)	$ (0.62)

Business Acquisitions and Dis_7

Business Acquisitions and Dispositions - Summary of Business Acquisition, Pro Forma Information (Details) - 2023 Acquisitions - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net sales	$ 5,719.3	$ 5,316.5
Net income attributable to Hubbell	$ 773.9	$ 450.1
Basic earnings per share (USD per share)	$ 14.41	$ 8.35
Diluted earnings per share (USD per share)	$ 14.31	$ 8.30

Business Acquisitions and Dis_8

Business Acquisitions and Dispositions - Summary of Disclosure of Long-Lived Assets Held-for-Sale (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale - current	$ 70.5	$ 0
Assets held for sale - non-current	91.9	0
Liabilities held for sale - current	24.6	0
Liabilities held for sale - non-current	17.5	$ 0
Discontinued Operations, Disposed of by Sale | Residential Lighting Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	0
Accounts receivable, net	29.8
Inventories, net	37.8
Other current assets	2.9
Assets held for sale - current	70.5
Property, Plant, and Equipment, net	1.6
Goodwill	63.2
Other Intangible assets, net	6.5
Other long-term assets	20.6
Assets held for sale - non-current	91.9
Accounts payable	1.9
Accrued salaries, wages and employee benefits	3.5
Accrued insurance	3.4
Other accrued liabilities	15.8
Liabilities held for sale - current	24.6
Other Non-Current Liabilities	17.5
Liabilities held for sale - non-current	$ 17.5

Receivables and Allowances (Det

Receivables and Allowances (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Accounts and Financing Receivable, after Allowance for Credit Loss, Current [Abstract]
Trade accounts receivable	$ 805.5	$ 778
Non-trade receivables	29.7	22.1
Accounts receivable, gross	835.2	800.1
Allowance for credit memos, returns and cash discounts	(38.2)	(44.2)
Allowance for doubtful accounts	(11.6)	(14.3)
Total allowances	(49.8)	(58.5)
ACCOUNTS RECEIVABLE, NET	$ 785.4	$ 741.6

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw material	$ 394.1	$ 302.8
Work-in-process	189.2	161.7
Finished goods	412.1	463.2
Subtotal	995.4	927.7
Excess of FIFO over LIFO cost basis	(162.5)	(187)
INVENTORIES, NET	$ 832.9	$ 740.7

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 1,970.5	$ 1,871.3
Current year acquisitions	614.7	111.4
Prior year acquisitions	3.3
Reclassifications to held for sale	(63.2)
Foreign currency translation	8.1	(12.2)
Goodwill, end of period	2,533.4	1,970.5
Utility Solutions
Goodwill [Roll Forward]
Goodwill, beginning of period	1,275.9	1,258.8
Current year acquisitions	614.7	23.8
Prior year acquisitions	1.2
Reclassifications to held for sale	0
Foreign currency translation	5.7	(6.7)
Goodwill, end of period	1,897.5	1,275.9
Electrical Solutions
Goodwill [Roll Forward]
Goodwill, beginning of period	694.6	612.5
Current year acquisitions	0	87.6
Prior year acquisitions	2.1
Reclassifications to held for sale	(63.2)
Foreign currency translation	2.4	(5.5)
Goodwill, end of period	$ 635.9	$ 694.6

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Current year acquisitions	$ 614.7	$ 111.4
Amortization expense	73.5	$ 75.7	$ 75.7
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Amortization expense, 2024	114.4
Amortization expense, 2025	95.7
Amortization expense, 2026	90.3
Amortization expense, 2027	85.7
Amortization expense, 2028	$ 82.2
Percentage of definite-lived intangible assets under accelerated amortization method (approximate) (as a percent)	85%

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 1,746.8	$ 1,143.2
Accumulated Amortization	(584.9)	(513.5)
TOTAL OTHER INTANGIBLE ASSETS	1,780.9	1,183.4
Tradenames and other
Other Intangible Assets [Line Items]
Accumulated Amortization	0	0
Indefinite-lived intangible assets (excluding goodwill)	34.1	40.2
Patents, tradenames and trademarks
Other Intangible Assets [Line Items]
Finite-lived intangible assets, gross	233.7	187.9
Accumulated Amortization	(84.8)	(75.7)
Customer relationships, developed technology and other
Other Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1,513.1	955.3
Accumulated Amortization	$ (500.1)	$ (437.8)

Investments - Narrative (Detail

Investments - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 65.3	$ 62.6
Other comprehensive (loss) income	32.8	(14.4)	$ (1.6)
Available-for-sale investments	65	61.4
Allowance for credit losses related to our available-for-sale debt securities	0
Available-for-sale investments, accumulated unrealized losses	0.6	1.3
Available-for-sale investments, fair value of securities with unrealized losses	34.5	53.7
Unrealized Gain (Loss) on Available-for-Sale Securities
Debt Securities, Available-for-sale [Line Items]
Other comprehensive (loss) income	0.6	$ (1.4)	$ (0.4)
State and Local Municipal Bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 65.3

Investments - Amortized Cost Ba

Investments - Amortized Cost Basis (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Available-for-sale securities
Amortized Cost	$ 65.3	$ 62.6
Gross Unrealized Losses	(0.6)	(1.3)
Fair Value	65	61.4
Trading securities
Fair Value	23.4	18.8
Estimate of Fair Value Measurement
Available-for-sale securities
Amortized Cost	65.3	62.6
Gross Unrealized Gains	0.3	0.1
Gross Unrealized Losses	(0.6)	(1.3)
Fair Value	65	61.4
Trading securities
Amortized Cost	11.6	10.2
Gross Unrealized Gains	11.8	8.6
Gross Unrealized Losses	0	0
Fair Value	23.4	18.8
Investments, Amortized Cost	76.9	72.8
Investments, Gross Unrealized Gains	12.1	8.7
Investments, Gross Unrealized Loss	(0.6)	(1.3)
TOTAL INVESTMENTS	88.4	80.2
Reported Value Measurement
Available-for-sale securities
Fair Value	65	61.4
Trading securities
Fair Value	23.4	18.8
TOTAL INVESTMENTS	$ 88.4	$ 80.2

Investments - Available-for-Sal

Investments - Available-for-Sale Investments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Amortized Cost
Amortized Cost Due within 1 year	$ 12.7
Amortized Cost After 1 year but within 5 years	40.9
Amortized Cost After 5 years but within 10 years	0.7
Amortized Cost Due after 10 years	11
Amortized Cost	65.3	$ 62.6
Fair Value
Fair Value Due within 1 year	12.7
Fair Value After 1 year but within 5 years	40.9
Fair Value After 5 years but within 10 years	0.7
Fair Value Due after 10 years	10.7
Available-for-sale securities, fair value	$ 65	$ 61.4

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant, and Equipment [Line Items]
Gross property, plant, and equipment	$ 1,408.7	$ 1,246.6
Less accumulated depreciation	(756.1)	(718.6)
PROPERTY, PLANT, AND EQUIPMENT, NET	652.6	528
Depreciation	71.9	63.4	$ 61.7
Land
Property, Plant, and Equipment [Line Items]
Gross property, plant, and equipment	34.9	29.8
Buildings and improvements
Property, Plant, and Equipment [Line Items]
Gross property, plant, and equipment	$ 249.8	212.1
Buildings and improvements | Minimum
Property, Plant, and Equipment [Line Items]
Depreciable lives (in years)	20 years
Buildings and improvements | Maximum
Property, Plant, and Equipment [Line Items]
Depreciable lives (in years)	45 years
Machinery, tools, and equipment
Property, Plant, and Equipment [Line Items]
Gross property, plant, and equipment	$ 992.4	905.7
Machinery, tools, and equipment | Minimum
Property, Plant, and Equipment [Line Items]
Depreciable lives (in years)	3 years
Machinery, tools, and equipment | Maximum
Property, Plant, and Equipment [Line Items]
Depreciable lives (in years)	15 years
Construction-in-progress
Property, Plant, and Equipment [Line Items]
Gross property, plant, and equipment	$ 131.6	$ 99

Other Accrued Liabilities (Deta

Other Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Accrued Liabilities [Abstract]
Customer program incentives	$ 57.4	$ 87.8
Accrued income taxes	21.1	4.5
Contract liabilities - deferred revenue	111.5	45.8
Customer refund liability	18.1	14.8
Accrued warranties	15.6	20.2
Current operating lease liabilities	30.6	30.5
Other	110.9	130.5
TOTAL	$ 365.2	$ 334.1

Other Non-Current Liabilities_2

Other Non-Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other Liabilities, Noncurrent [Abstract]
Pensions	$ 135	$ 155.3
Other post-employment benefits	14.4	14.3
Deferred tax liabilities	240.3	113.8
Accrued warranties long-term	23.6	26
Non-current operating lease liabilities	118.8	84.9
Other	128.5	111.3
TOTAL	$ 660.6	$ 505.6

Retirement Benefits - Narrative

Retirement Benefits - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) benefit_plan	Dec. 31, 2022 USD ($) benefit_plan	Dec. 31, 2021 USD ($) benefit_plan
Defined Benefit Plan Disclosure [Line Items]
Pension charge	$ 0	$ 7	$ 0
Number of defined contribution pension plans | benefit_plan	4
Defined contribution pension plans, total costs	$ 32.3	$ 25.8	$ 23.3
Number of multiemployer defined benefit pension plans | benefit_plan		1	1
Multiemployer plan total employer contributions		$ 0.2	$ 0.2
Futures contract supported by cash or cash equivalents	100%
United States
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.20%	5.50%
United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.80%	5%
Canada
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.61%	5.01%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension charge	$ 18.5	$ 18.1	(0.7)
Benefit obligation	674.9	670.8	937.7
Settlement losses	0	8.8	$ 0
Employer contributions	$ 26.5	$ 19.8
Discount rate	5.16%	5.46%	2.79%
Pension Benefits | Continuing Operations
Defined Benefit Plan Disclosure [Line Items]
Settlement losses		$ 7
Pension Benefits | Discontinued Operations
Defined Benefit Plan Disclosure [Line Items]
Settlement losses		1.8
Pension Benefits | United States
Defined Benefit Plan Disclosure [Line Items]
Defined benefit obligation per plan, as a percent of total benefit obligation (as a percent)	89%
Employer contributions	$ 20	10	$ 0
Pension Benefits | United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Employer contributions		2.5
Company Stock
Defined Benefit Plan Disclosure [Line Items]
Employer stock included in plan assets	$ 0	$ 0

Retirement Benefits - Change in

Retirement Benefits - Change in Benefit Obligations and Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits
Change in benefit obligation
Benefit obligation at beginning of year	$ 670.8	$ 937.7
Service cost	0.6	0.9	$ 1
Interest cost	35.2	28	23.8
Plan participants’ contributions	0	0
Amendments	0	0
Actuarial loss/(gain)	18.1	(214.2)
Curtailment gain	0	0
Settlements	0	(22.5)
Currency impact	3.2	(10.5)
Other	(0.1)	(0.5)
Benefits paid	(52.9)	(48.1)
Benefit obligation at end of year	674.9	670.8	937.7
Change in plan assets
Fair value of plan assets at beginning of year	515.4	765.6
Actual return on plan assets	50.8	(186.6)
Employer contributions	26.5	19.8
Plan participants’ contributions	0	0
Settlements	0	(22.5)
Currency impact	3.3	(12.8)
Benefits paid	(52.9)	(48.1)
Fair value of plan assets at end of year	543.1	515.4	765.6
FUNDED STATUS	(131.8)	(155.4)
Amounts recognized in the consolidated balance sheet consist of:
Prepaid pensions (included in Other long-term assets)	10	6.8
Accrued benefit liability (short-term and long-term)	(141.8)	(162.2)
NET AMOUNT RECOGNIZED IN THE CONSOLIDATED BALANCE SHEET	(131.8)	(155.4)
Amounts recognized in Accumulated other comprehensive loss (income) consist of:
Net actuarial loss (gain)	231.1	244.4
Prior service cost (credit)	6	6.3
NET AMOUNT RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE LOSS	237.1	250.7
Other Benefits
Change in benefit obligation
Benefit obligation at beginning of year	15.9	18.9
Service cost	0	0	0
Interest cost	0.8	0.5	0.6
Plan participants’ contributions	0	0
Amendments	0	0
Actuarial loss/(gain)	0.3	(2.2)
Curtailment gain	0	0
Settlements	0	0
Currency impact	0	0
Other	0	0
Benefits paid	(0.9)	(1.3)
Benefit obligation at end of year	16.1	15.9	18.9
Change in plan assets
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	0.9	1.3
Plan participants’ contributions	0	0
Settlements	0	0
Currency impact	0	0
Benefits paid	(0.9)	(1.3)
Fair value of plan assets at end of year	0	0	$ 0
FUNDED STATUS	(16.1)	(15.9)
Amounts recognized in the consolidated balance sheet consist of:
Prepaid pensions (included in Other long-term assets)	0	0
Accrued benefit liability (short-term and long-term)	(16.1)	(15.9)
NET AMOUNT RECOGNIZED IN THE CONSOLIDATED BALANCE SHEET	(16.1)	(15.9)
Amounts recognized in Accumulated other comprehensive loss (income) consist of:
Net actuarial loss (gain)	(4.7)	(5.5)
Prior service cost (credit)	0	0
NET AMOUNT RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE LOSS	$ (4.7)	$ (5.5)

Retirement Benefits - Accumulat

Retirement Benefits - Accumulated Benefit Obligation In Excess of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Projected benefit obligation	$ 467.6	$ 468
Accumulated benefit obligation	467.6	468
Fair value of plan assets	$ 325.9	$ 305.8

Retirement Benefits - Component

Retirement Benefits - Components of Pension and Other Benefit Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Net periodic benefit cost	$ 0	$ 7	$ 0
Pension Benefits
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	0.6	0.9	1
Interest cost	35.2	28	23.8
Expected return on plan assets	(28.1)	(30.8)	(36.5)
Amortization of prior service cost (credit)	0.4	0.4	0.2
Amortization of actuarial losses (gains)	10.4	10.8	10.8
Curtailment and settlement losses	0	8.8	0
Net periodic benefit cost	18.5	18.1	(0.7)
Changes recognized in other comprehensive loss (income), before tax:
Current year net actuarial loss (gain)	(4.6)	2.6	(1.4)
Current year prior service credit	0	0	3.6
Amortization of prior service (cost) credit	(0.4)	(0.4)	(0.2)
Amortization of net actuarial (losses) gains	(10.4)	(10.8)	(10.8)
Currency impact	1.8	(2)	(0.2)
Settlement adjustment	0	(8.8)	0
Curtailment adjustments	0	0	0
Total recognized in other comprehensive loss	(13.6)	(19.4)	(9)
TOTAL RECOGNIZED IN NET PERIODIC PENSION COST AND OTHER COMPREHENSIVE LOSS	4.9	(1.3)	(9.7)
Other Benefits
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	0	0	0
Interest cost	0.8	0.5	0.6
Expected return on plan assets	0	0	0
Amortization of prior service cost (credit)	0	0	0
Amortization of actuarial losses (gains)	(0.5)	(0.2)	(0.1)
Curtailment and settlement losses	0	0	0
Net periodic benefit cost	0.3	0.3	0.5
Changes recognized in other comprehensive loss (income), before tax:
Current year net actuarial loss (gain)	0.3	(2.2)	(4.1)
Current year prior service credit	0	0	0
Amortization of prior service (cost) credit	0	0	0
Amortization of net actuarial (losses) gains	0.6	0.2	0.1
Currency impact	0	0	0
Settlement adjustment	0	0	0
Curtailment adjustments	0	0	0
Total recognized in other comprehensive loss	0.9	(2)	(4)
TOTAL RECOGNIZED IN NET PERIODIC PENSION COST AND OTHER COMPREHENSIVE LOSS	$ 1.2	$ (1.7)	$ (3.5)

Retirement Benefits - Projected

Retirement Benefits - Projected Benefit Obligation Assumptions (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	5.16%	5.46%	2.79%
Rate of compensation increase	0.08%	0.08%	0.08%
Discount rate	5.46%	2.79%	2.47%
Expected return on plan assets	5.68%	4.59%	4.66%
Rate of compensation increase	0.08%	0.08%	0.24%
Other Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	5.20%	5.50%	2.90%
Rate of compensation increase	5%	3.93%	3.87%
Discount rate	5.50%	2.90%	2.50%
Rate of compensation increase	3.93%	3.87%	3.99%

Retirement Benefits - Assumed H

Retirement Benefits - Assumed Health Care Cost Trend Rates (Details) - Other Benefits	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Health care cost trend assumed for next year	6.80%	7%	6.20%
Rate to which the cost trend is assumed to decline	5%	5%	5%
Year that the rate reaches the ultimate trend rate	2031	2031	2028

Retirement Benefits - Combined

Retirement Benefits - Combined Targeted and Actual Domestic and Foreign Pension Plans Weighted Average Asset Allocation (Details)	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of plan assets, actual		100%	100%
Forecast
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of plan assets, target	100%
Equity securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of plan assets, actual		23%	23%
Equity securities | Forecast
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of plan assets, target	23%
Debt securities & Cash
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of plan assets, actual		77%	77%
Debt securities & Cash | Forecast
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of plan assets, target	77%
Alternative Investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of plan assets, actual		0%	0%
Alternative Investments | Forecast
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of plan assets, target	0%

Retirement Benefits - Fair Valu

Retirement Benefits - Fair Value Pension Plan Assets (Details) - Pension Benefits - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 543.1	$ 515.4	$ 765.6
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18	9.8
Equity Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22.9	21.5
Common Pooled Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	98.5	84.5
U.S. Treasuries
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	42.4	47.2
State and Local Municipal Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.6	6.4
Sovereign Debt
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.7	4.9
Corporate Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	120.3	105.5
Fixed Income Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	47	41.8
Common Pooled Fixed Income Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	176.7	174.2
Alternative Investment Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.8	2.1
Common Pooled Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.2	17.5
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	82.4	67.2
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12.1	3.5
Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22.9	21.5
Quoted Prices in Active Markets for Identical Assets (Level 1) | Common Pooled Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasuries
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | State and Local Municipal Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Sovereign Debt
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed Income Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	47	41.8
Quoted Prices in Active Markets for Identical Assets (Level 1) | Common Pooled Fixed Income Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Alternative Investment Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Common Pooled Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.4	0.4
Quoted Prices in Active Markets for Similar Assets (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	459.9	420.6
Quoted Prices in Active Markets for Similar Assets (Level 2) | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5.9	6.3
Quoted Prices in Active Markets for Similar Assets (Level 2) | Equity Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Similar Assets (Level 2) | Common Pooled Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	98.5	84.5
Quoted Prices in Active Markets for Similar Assets (Level 2) | U.S. Treasuries
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	42.4	47.2
Quoted Prices in Active Markets for Similar Assets (Level 2) | State and Local Municipal Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.6	6.4
Quoted Prices in Active Markets for Similar Assets (Level 2) | Sovereign Debt
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.7	4.9
Quoted Prices in Active Markets for Similar Assets (Level 2) | Corporate Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	120.3	105.5
Quoted Prices in Active Markets for Similar Assets (Level 2) | Fixed Income Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Similar Assets (Level 2) | Common Pooled Fixed Income Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	176.7	148.7
Quoted Prices in Active Markets for Similar Assets (Level 2) | Alternative Investment Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Similar Assets (Level 2) | Common Pooled Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.8	17.1
Unobservable inputs for which little or no market data exists (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Equity Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Common Pooled Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | U.S. Treasuries
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | State and Local Municipal Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Sovereign Debt
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Corporate Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Fixed Income Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Common Pooled Fixed Income Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Alternative Investment Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Unobservable inputs for which little or no market data exists (Level 3) | Common Pooled Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.8	27.6
Investments Priced Using Net Asset Value | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value | Equity Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value | Common Pooled Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value | U.S. Treasuries
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value | State and Local Municipal Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value | Sovereign Debt
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value | Corporate Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value | Fixed Income Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investments Priced Using Net Asset Value | Common Pooled Fixed Income Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	25.5
Investments Priced Using Net Asset Value | Alternative Investment Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.8	2.1
Investments Priced Using Net Asset Value | Common Pooled Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

Retirement Benefits - Estimated

Retirement Benefits - Estimated Future Benefit Payments (Details) $ in Millions	Dec. 31, 2023 USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
2024	$ 53
2025	53.3
2026	53.2
2027	52.6
2028	52.1
2029-2033	251.2
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
2024	1.7
2025	1.6
2026	1.5
2027	1.4
2028	1.3
2029-2033	$ 5.5

Debt - Summary of Long-term Deb

Debt - Summary of Long-term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Mar. 12, 2021	Feb. 28, 2018	Aug. 31, 2017	Mar. 31, 2016
Debt Instrument [Line Items]
Term loan, current portion	$ 15
Long-term debt	$ 2,023.2	$ 1,437.9
Notes 2026 Term | Senior Notes
Debt Instrument [Line Items]
Senior notes, stated (as a percent)	3.35%					3.35%
Long-term debt	$ 398.6	397.9
Notes 2027 Term | Senior Notes
Debt Instrument [Line Items]
Senior notes, stated (as a percent)	3.15%				3.15%
Long-term debt	$ 298	297.5
Notes 2028 Term | Senior Notes
Debt Instrument [Line Items]
Senior notes, stated (as a percent)	3.50%			3.50%
Long-term debt	$ 447	446.2
Notes 2031 Term | Senior Notes
Debt Instrument [Line Items]
Senior notes, stated (as a percent)	2.30%		2.30%
Long-term debt	$ 296.7	296.3
Term Loan | Senior Notes
Debt Instrument [Line Items]
Term loan, current portion	15
Long-term debt	$ 582.9	$ 0

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($)		1 Months Ended				3 Months Ended	12 Months Ended
	Mar. 12, 2021	Dec. 31, 2023	Feb. 28, 2018	Aug. 31, 2017	Mar. 31, 2016	Jun. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Loss on extinguishment of debt							$ 0	$ 0	$ (16,800,000)
Issuance of long-term debt							600,000,000	0	298,700,000
Short-term debt		$ 117,400,000					117,400,000	4,700,000
Commercial paper		100,000,000					100,000,000	0
Borrowings to support international operations in China		2,400,000					2,400,000	4,700,000
Interest and fees paid							49,900,000	47,500,000	65,600,000
Other LOC
Debt Instrument [Line Items]
Line of credit		$ 55,900,000					55,900,000	55,800,000
2021 Credit Facility
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity	$ 75,000,000
Line of credit facility, covenants, maximum debt to capitalization (as a percent)	65%
Notes 2022 Term
Debt Instrument [Line Items]
Loss on extinguishment of debt									$ 16,000,000
Term Loan Agreement
Debt Instrument [Line Items]
Line of credit facility, covenants, maximum debt to capitalization (as a percent)		65%
Short-term debt		$ 15,000,000					15,000,000
Letters of Credit | Other LOC
Debt Instrument [Line Items]
Line of credit		$ 23,400,000					$ 23,400,000	$ 31,700,000
Letters of Credit | 2021 Credit Facility
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 50,000,000
Line of Credit | Revolving Credit Facility | 2021 Credit Facility
Debt Instrument [Line Items]
Agreement term (in years)	5 years
Line of credit, maximum borrowing capacity	$ 750,000,000
Line of Credit | Secured Debt | Term Loan Agreement | Interest Rate Period One
Debt Instrument [Line Items]
Quarterly installments of debt instrument (as a percent)		0.025					0.025
Line of Credit | Secured Debt | Term Loan Agreement | Interest Rate Period Two
Debt Instrument [Line Items]
Quarterly installments of debt instrument (as a percent)		0.025					0.025
Line of Credit | Secured Debt | Term Loan Agreement | Interest Rate Period Three
Debt Instrument [Line Items]
Quarterly installments of debt instrument (as a percent)		0.05					0.05
Line of Credit | Secured Debt | Term Loan Agreement | SOFR
Debt Instrument [Line Items]
Variable rate		6.72%
Senior Notes | Notes 2031 Term
Debt Instrument [Line Items]
Face amount	$ 300,000,000
Senior notes, stated (as a percent)	2.30%	2.30%					2.30%
Proceeds from issuance of long-term debt	$ 295,500,000
Senior Notes | Notes 2022 Term
Debt Instrument [Line Items]
Face amount	$ 300,000,000
Senior notes, stated (as a percent)	3.625%
Loss on extinguishment of debt						$ 16,800,000
Cash premium from extinguishment of debt						$ 16,000,000
Senior Notes | Notes 2028 Term
Debt Instrument [Line Items]
Face amount			$ 450,000,000
Senior notes, stated (as a percent)		3.50%	3.50%				3.50%
Issuance of long-term debt			$ 442,600,000
Senior Notes | Notes 2027 Term
Debt Instrument [Line Items]
Face amount				$ 300,000,000
Senior notes, stated (as a percent)		3.15%		3.15%			3.15%
Issuance of long-term debt				$ 294,600,000
Senior Notes | Notes 2026 Term
Debt Instrument [Line Items]
Face amount					$ 400,000,000
Senior notes, stated (as a percent)		3.35%			3.35%		3.35%
Proceeds from issuance of long-term debt					$ 393,400,000
Senior Notes | Term Loan Agreement
Debt Instrument [Line Items]
Face amount		$ 600,000,000					$ 600,000,000
Senior Notes | Revolving Credit Facility | 2021 Credit Facility
Debt Instrument [Line Items]
Line of credit facility, accordion feature, higher borrowing capacity option	$ 1,250,000,000

Debt - Other Information Relate

Debt - Other Information Related to Short-term Debt (Details)	Dec. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Interest rate at year end (as a percent)	5.66%	2.57%

Income Taxes - Components of In

Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income before income taxes:
United States	$ 848	$ 528.9	$ 347.5
International	135.3	128.1	111.8
Income from continuing operations before income taxes	983.3	657	459.3
Provision for income taxes — current:
Federal	165.6	120.3	43.3
State	35.6	24.2	13
International	32.3	23.5	22.7
Total provision — current	233.5	168	79
Provision for income taxes — deferred:
Federal	(8.5)	(26.2)	8.8
State	(8)	(3.9)	1.9
International	0.3	2.3	(1.5)
Total provision — deferred	(16.2)	(27.8)	9.2
TOTAL PROVISION FOR INCOME TAXES	$ 217.3	$ 140.2	$ 88.2

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Tax Credit Carryforward [Line Items]
Income tax credits	$ 26.1	$ 22.8
Loss carryforwards	12.7
Valuation allowance	37.4	32.2
Undistributed earnings of foreign subsidiaries	513
Income taxes paid	215	168	$ 84
Unrecognized tax benefits that would impact effective tax rate	37.8
Unrecognized tax benefits timing of deductibility unknown	4.6
Unrecognized tax benefits, income tax penalties and interest expense	1.2	(1)	$ 0.3
Unrecognized tax benefits, income tax penalties and interest accrued	7.9	$ 6.7
Minimum
Tax Credit Carryforward [Line Items]
Decrease in unrecognized tax benefits is reasonably possible, estimated range of change	5
Maximum
Tax Credit Carryforward [Line Items]
Decrease in unrecognized tax benefits is reasonably possible, estimated range of change	10
Tax credit carryforward indefinitely
Tax Credit Carryforward [Line Items]
Income tax credits	1.9
Loss carryforwards	5.2
Carryforward Subject To Expiration
Tax Credit Carryforward [Line Items]
Income tax credits	24.2
Loss carryforwards	$ 7.5

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Inventories	$ 12	$ 9.6
Lease liabilities	42.5	27.4
Income tax credits	26.1	22.8
Accrued liabilities	42.5	40.8
Pension	32.2	38.9
Post retirement and post employment benefits	3.9	4.5
Stock-based compensation	7.4	6.9
Loss carryforwards	12.7	14.2
Capitalized research expenditures	40	18.4
Miscellaneous other	25	16.4
Gross deferred tax assets	244.3	199.9
Valuation allowance	(37.4)	(32.2)
Total deferred tax assets, net of valuation allowance	206.9	167.7
Deferred tax liabilities:
Liability on undistributed foreign earnings	(9.4)	(7)
Goodwill and intangibles	(329)	(185)
Right-of-use assets	(41.8)	(26.1)
Property, plant, and equipment	(59.8)	(57.9)
Total deferred tax liabilities	(440)	(276)
Deferred taxes are reflected in the Consolidated Balance Sheet as follows:
Non-current tax assets (included in Other long-term assets)	7.2	5.5
Non-current tax liabilities (included in Other Non-Current Liabilities)	(240.3)	(113.8)
TOTAL NET DEFERRED TAX LIABILITY	$ (233.1)	$ (108.3)

Income Taxes - Unrecognized Tax

Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of year	$ 42.1	$ 41.2	$ 47.6
Additions based on tax positions relating to the current year	10.4	12.1	6.1
Reductions based on expiration of statute of limitations	(7.6)	(4.8)	(10.3)
Additions to tax positions relating to previous years	2.8
Subtractions to tax positions relating to previous years		(6.2)	(2.2)
Settlements	(0.7)	(0.2)	0
TOTAL UNRECOGNIZED TAX BENEFITS	$ 47	$ 42.1	$ 41.2

Income Taxes - Effective Income

Income Taxes - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21%	21%	21%
State income taxes, net of federal benefit	2.20%	2.40%	2.50%
Foreign income taxes	0.40%	(0.20%)	(0.50%)
Federal R&D Credit	(0.70%)	(0.80%)	(1.40%)
Other, net	(0.80%)	(1.10%)	(2.40%)
CONSOLIDATED EFFECTIVE INCOME TAX RATE	22.10%	21.30%	19.20%

Financial Instruments and Fai_3

Financial Instruments and Fair Value Measurement - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Account receivable, net of allowances	$ 785.4	$ 741.6
Accounts receivable, allowances	11.6	14.3
Investments carried at fair value	88.4	80.2
Purchase of trading securities held-for-investment	3.7	2.2
Proceeds from the sale of trading securities held-for-investment	2.2	4.2
Long-term debt, current potion	15
Long-term debt	2,038.2
Long-term debt	2,023.2	1,437.9
Long-term debt, fair value	$ 1,951.6	$ 1,306.5
Net Sales | Top Ten Customers | Customer Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as percent)	42%

Financial Instruments and Fai_4

Financial Instruments and Fair Value Measurement - Fair Value Hierarchy (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	$ 65	$ 61.4
Trading securities	23.4	18.8
Deferred compensation plan liabilities	(23.4)	(18.8)
Derivatives:
Forward exchange contracts- Liability	(0.5)
Forward exchange contracts-Assets		1.1
Fair value, net asset (liability)	169.6	215.2
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	0	0
Trading securities	23.4	18.8
Deferred compensation plan liabilities	(23.4)	(18.8)
Derivatives:
Forward exchange contracts- Liability	0
Forward exchange contracts-Assets		0
Fair value, net asset (liability)	105.1	147.9
Quoted Prices in Active Markets for Similar Assets (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	65	61.4
Trading securities	0	0
Deferred compensation plan liabilities	0	0
Derivatives:
Forward exchange contracts- Liability	(0.5)
Forward exchange contracts-Assets		1.1
Fair value, net asset (liability)	64.5	67.3
Unobservable inputs for which little or no market data exists (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	0	0
Trading securities	0	0
Deferred compensation plan liabilities	0	0
Derivatives:
Forward exchange contracts- Liability	0
Forward exchange contracts-Assets		0
Fair value, net asset (liability)	0	0
Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	105.1	147.9
Money Market Funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	105.1	147.9
Money Market Funds | Quoted Prices in Active Markets for Similar Assets (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	0	0
Money Market Funds | Unobservable inputs for which little or no market data exists (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 0	0
Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		4.8
Time Deposits | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		0
Time Deposits | Quoted Prices in Active Markets for Similar Assets (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		4.8
Time Deposits | Unobservable inputs for which little or no market data exists (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		$ 0

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Commitments and Contingencies	Commitments and Contingencies
Total environmental liabilities	$ 6.7	$ 6.3

Capital Stock - Common Stock Ou

Capital Stock - Common Stock Outstanding (Details) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Common Stock, Shares, Outstanding [Roll Forward]
Common stock, shares outstanding, beginning of period (shares)	53,689,539
Common stock, shares outstanding, end of period (shares)	53,730,566	53,689,539
Common Stock
Common Stock, Shares, Outstanding [Roll Forward]
Common stock, shares outstanding, beginning of period (shares)	53,689,000	54,518,000	54,383,000
Exercise of stock appreciation rights (shares)	77,000	62,000	147,000
Director compensation arrangements, net (shares)	4,000	6,000	7,000
Restricted/performance shares activity, net of forfeitures (shares)	127,000	86,000	101,000
Acquisition/surrender of shares (shares)	(167,000)	(983,000)	(120,000)
Common stock, shares outstanding, end of period (shares)	53,730,000	53,689,000	54,518,000

Capital Stock - Reserved Common

Capital Stock - Reserved Common Stock (Details) - Common Stock shares in Thousands	Dec. 31, 2023 shares
Class of Stock [Line Items]
Future grant of stock-based compensation (in shares)	1,305
Shares reserved under other equity compensation plans (in shares)	124
TOTAL (in shares)	1,429

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Millions	1 Months Ended				12 Months Ended
	Feb. 28, 2023 $ / shares shares	Feb. 28, 2022 $ / shares shares	Feb. 28, 2021 $ / shares shares	Feb. 29, 2020 shares	Dec. 31, 2023 USD ($) installment $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares authorized (shares) | shares					9,700,000
Stock-based compensation					$ 26.5	$ 24.5	$ 17.5
Income tax benefits					4	3.9	3.2
Net tax windfall as a result of exercise or vesting of awards					6.4	3.2	6.8
Unrecognized compensation cost related to non-vested awards					19.7
Capitalized to inventory					$ 0.7	$ 0.4	$ 0.4
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (shares) | shares					56,000
Shares granted (USD per share) | $ / shares					$ 249.36	$ 187.07	$ 166.46
Shares vested (shares) | shares					60,000
Vested in period total fair value					$ 9.7	$ 8.4	$ 12.6
Restricted Stock | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (shares) | shares					4,655	5,952	6,741
Restricted Stock Awards Service Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of installments | installment					3
Restricted Stock Awards Service Condition | Vesting Period One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)					33.33%
Restricted Stock Awards Service Condition | Vesting Period Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)					33.33%
Restricted Stock Awards Service Condition | Vesting Period Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)					33.33%
Stock Appreciation Rights SARS
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of installments | installment					3
Shares granted (shares) | shares					101,000
Shares granted (USD per share) | $ / shares					$ 247.26
Award vesting period (in years)					3 years
Award, expiration period (in years)					10 years
SARS exercised intrinsic value					$ 36.6	$ 21	$ 46.8
Stock Appreciation Rights SARS | Vesting Period One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)					33.33%
Stock Appreciation Rights SARS | Vesting Period Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)					33.33%
Stock Appreciation Rights SARS | Vesting Period Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)					33.33%
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (shares) | shares				63,868
Award performance period (in years)					3 years
Performance Shares | 2020 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (USD per share) | $ / shares								$ 151.78
Shares vested (shares) | shares					79,000
Vested in period total fair value					$ 20.1
Performance Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)					0%
Performance Shares | Minimum | 2020 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout percentage, over/under (as a percent)					120%
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)					200%
Performance Shares | Maximum | 2020 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout percentage, over/under (as a percent)					150%
Performance Shares, Vesting on Compounded Annual Growth Rate of Net Sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)		50%	50%		34%
Performance Shares, Vesting on Achieved Operating Margin Performance
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)					33%
Performance Shares, Vesting on Achieved Trade Working Capital as a Percent of Net Sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)					33%
Performance Shares - Market Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (shares) | shares	11,481	14,076	15,741
Award performance period (in years)		3 years	3 years
Shares granted (USD per share) | $ / shares	$ 279.47	$ 221.94	$ 198.89
Performance based criteria plan payout percentage, target (as a percent)		100%	100%
Performance Shares - Market Condition | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)		0%	0%
Performance Shares - Market Condition | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)		200%	200%
Performance Shares - Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (shares) | shares	23,316	28,628	31,543
Award performance period (in years)		3 years	3 years
Shares granted (USD per share) | $ / shares	$ 230.64	$ 174.48	$ 151.92
Performance Shares - Performance Condition | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)	0%	0%	0%
Performance Shares - Performance Condition | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)	200%	200%	200%
Performance Shares, Vesting on Operating Profit Margin
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting (as a percent)		50%	50%
Selling and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation cost					$ 24.9	23.2	15.8
Cost of goods sold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation cost					$ 1.6	$ 1.3	$ 1.7

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock Option Activity (Details) - Restricted Stock - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
OUTSTANDING beginning balance (shares)	179
Shares granted (shares)	56
Shares vested (shares)	(60)
Shares forfeited (shares)	(6)
OUTSTANDING ending balance (shares)	169	179
Weighted Average Exercise Price (USD per share)
OUTSTANDING beginning balance (USD per share)	$ 154.09
Shares granted (USD per share)	249.36	$ 187.07	$ 166.46
Shares vested (USD per share)	161.35
Shares forfeited (USD per share)	194.65
OUTSTANDING AT ending balance (USD per Share)	$ 181.29	$ 154.09

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Appreciation Rights (Details) - Stock Appreciation Rights SARS $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares
Number of Rights
OUTSTANDING beginning balance (shares) | shares	779
Shares granted (shares) | shares	101
Exercised (shares) | shares	(237)
Forfeited (shares) | shares	(14)
Canceled (shares) | shares	(2)
OUTSTANDING ending balance (shares) | shares	627
EXERCISABLE (shares) | shares	397
Weighted Average Exercise Price (USD per share)
OUTSTANDING beginning balance (USD per share) | $ / shares	$ 144.66
Granted (USD per share) | $ / shares	247.26
Exercised (USD per share) | $ / shares	129.12
Forfeited (USD per share) | $ / shares	200.89
Canceled (USD per share) | $ / shares	111.60
OUTSTANDING AT ending balance (USD per Share) | $ / shares	165.84
EXCERCISABLE (USD per share) | $ / shares	$ 142.04
Weighted average remaining contractual term, outstanding	6 years 8 months 12 days
Weighted average remaining contractual term, exercisable	5 years 8 months 12 days
Aggregate intrinsic value, outstanding | $	$ 102,333
Aggregate intrinsic value, exercisable | $	$ 74,257

Stock-Based Compensation - Weig

Stock-Based Compensation - Weighted-Average Assumptions Used in Estimating the Fair Value of SARs (Details) - Stock Appreciation Rights SARS - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Dividend Yield	1.80%	2.10%	2.40%
Expected Volatility	28%	27.40%	26.50%
Risk Free Interest Rate	3.70%	1.90%	0.60%
Expected Term	4 years 10 months 24 days	4 years 10 months 24 days	5 years 6 months
Weighted Avg. Grant Date Fair Value of 1 SAR (USD per share)	$ 62.79	$ 39.68	$ 29.58

Stock-Based Compensation - Perf

Stock-Based Compensation - Performance Shares Granted During the Period (Details) - Performance Shares - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2020
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)	0%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)	200%
2020 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (USD per share)		$ 151.78
2020 Grant | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout percentage, over/under (as a percent)	120%
2020 Grant | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout percentage, over/under (as a percent)	150%

Stock-Based Compensation - Pe_2

Stock-Based Compensation - Performance Shares, Market Condition (Details) - Performance Shares - Market Condition - $ / shares	1 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Price (USD per share)	$ 241.17	$ 185.87	$ 163.26
Expected Dividend Yield	1.90%	2.30%	2.40%
Expected Volatility	39.40%	39.70%	40.60%
Risk Free Interest Rate	4.10%	1.60%	0.20%
Expected Term	2 years 10 months 24 days	2 years 10 months 24 days	3 years
Shares granted (USD per share)	$ 279.47	$ 221.94	$ 198.89

Stock-Based Compensation - Pe_3

Stock-Based Compensation - Performance Shares, Performance Condition (Details) - Performance Shares - Performance Condition - $ / shares	1 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (USD per share)	$ 230.64	$ 174.48	$ 151.92
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)	0%	0%	0%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based criteria plan payout ( as percent)	200%	200%	200%

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net income from continuing operations attributable to Hubbell Incorporated	$ 759.8	$ 511.3	$ 365
Less: Earnings allocated to participating securities	(1.8)	(1.3)	(1.1)
Net income from continuing operations available to common shareholders	758	510	363.9
Net income from discontinued operations attributable to Hubbell Incorporated	0	34.6	34.5
Less: Earnings allocated to participating securities	0	(0.1)	(0.1)
Net income from discontinued operations available to common shareholders	0	34.5	34.4
Net income attributable to Hubbell Incorporated	759.8	545.9	399.5
Less: Earnings allocated to participating securities	(1.8)	(1.4)	(1.2)
Net income available to common shareholders	$ 758	$ 544.5	$ 398.3
Denominator:
Average number of common shares outstanding (shares)	53.6	53.7	54.3
Potential dilutive shares (shares)	0.4	0.4	0.4
Average number of diluted shares outstanding (shares)	54	54.1	54.7
Basic earnings per share:
Basic earnings per share from continuing operations (USD per share)	$ 14.14	$ 9.49	$ 6.70
Basic earnings per share from discontinued operations (USD per share)	0	0.64	0.63
Basic earnings per share (USD per share)	14.14	10.13	7.33
Diluted earnings per share:
Diluted earnings per share from continuing operations (USD per share)	14.05	9.43	6.66
Diluted earnings per share from discontinued operations (USD per share)	0	0.64	0.62
Diluted earnings per share (USD per share)	$ 14.05	$ 10.07	$ 7.28

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss - Changes in AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period	$ 2,370.6
Other comprehensive income (loss) before reclassifications	25.7	$ (28.7)	$ (10.4)
Amounts reclassified from accumulated other comprehensive loss	7.1	14.3	8.8
Other comprehensive income (loss)	32.8	(14.4)	(1.6)
End of period	2,889.3	2,370.6
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period	(345.2)	(330.8)	(329.2)
Other comprehensive income (loss)	32.8	(14.4)	(1.6)
End of period	(312.4)	(345.2)	(330.8)
Cash Flow Hedge (Loss) Gain
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period	0.6	0.4	(0.7)
Other comprehensive income (loss) before reclassifications	(0.3)	1.2	0.4
Amounts reclassified from accumulated other comprehensive loss	(0.6)	(1)	0.7
Other comprehensive income (loss)	(0.9)	0.2	1.1
End of period	(0.3)	0.6	0.4
Unrealized Gain (Loss) on Available-for-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period	(0.8)	0.6	1
Other comprehensive income (loss) before reclassifications	0.6	(1.4)	(0.4)
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Other comprehensive income (loss)	0.6	(1.4)	(0.4)
End of period	(0.2)	(0.8)	0.6
Pension and Post Retirement Benefit Plan Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period	(188.6)	(202.8)	(212)
Other comprehensive income (loss) before reclassifications	2.5	(0.6)	1.1
Amounts reclassified from accumulated other comprehensive loss	7.7	14.8	8.1
Other comprehensive income (loss)	10.2	14.2	9.2
End of period	(178.4)	(188.6)	(202.8)
Cumulative Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period	(156.4)	(129)	(117.5)
Other comprehensive income (loss) before reclassifications	22.9	(27.9)	(11.5)
Amounts reclassified from accumulated other comprehensive loss	0	0.5	0
Other comprehensive income (loss)	22.9	(27.4)	(11.5)
End of period	$ (133.5)	$ (156.4)	$ (129)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Loss - Reclassifications (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	$ 5,372.9	$ 4,947.9	$ 4,194.1
Cost of goods sold	3,484.8	3,476.3	3,042.6
Tax (expense) benefit	(217.3)	(140.2)	(88.2)
Gain on disposition of business (Note 2)	0	0	(6.9)
Gain (loss) net of tax	766	551.4	$ 405.6
Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain (loss) net of tax	(7.1)	(14.3)
Cash flow hedges gain (loss) | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	0	0
Cost of goods sold	0.9	1.2
Total before tax	0.9	1.2
Tax (expense) benefit	(0.3)	(0.2)
Gain (loss) net of tax	0.6	1
Amortization of defined benefit pension and post retirement benefit items | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(10.2)	(19.8)
Tax (expense) benefit	2.5	5
Gain (loss) net of tax	(7.7)	(14.8)
Prior-service credits | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(0.4)	(0.4)
Actuarial gains/(losses) | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(9.8)	(10.6)
Settlement and curtailment losses | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	0	(8.8)
Cumulative Translation Adjustment | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax (expense) benefit	0	0
Gain on disposition of business (Note 2)	0	(0.5)
Gain (loss) net of tax	$ 0	$ (0.5)

Industry Segments and Geograp_3

Industry Segments and Geographic Area Information - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Export sales from United States	$ 345.6	$ 253	$ 227
International | Net Sales Total | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as percent)	8%	8%	9%
International | Long-lived assets Total | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as percent)	10%	12%	11%
United Kingdom | Net Sales Total | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as percent)	32%
United Kingdom | Long-lived assets Total | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as percent)	19%
Canada | Net Sales Total | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as percent)	29%
Spain | Long-lived assets Total | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as percent)	14%
BRAZIL | Net Sales Total | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as percent)	15%
BRAZIL | Long-lived assets Total | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as percent)	21%

Industry Segments and Geograp_4

Industry Segments and Geographic Area Information - Industry Segments Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Sales:
Net sales	$ 5,372.9	$ 4,947.9	$ 4,194.1
Operating Income:
Operating Income	1,038.5	709.1	532.3
Loss on disposition of business (Note 4)	0	0	(6.9)
Loss on extinguishment of debt (Note 13)	0	0	(16.8)
Pension charge (Note 12)	0	(7)	0
Interest expense, net	(36.7)	(49.6)	(54.7)
Other (expense) income, net	(18.5)	4.5	5.4
Income from continuing operations before income taxes	983.3	657	459.3
Assets:
Assets	6,914	5,402.6	5,281.5
Capital Expenditures:
Capital expenditures	165.7	129.3	90.2
Depreciation and Amortization:
Depreciation and amortization	149.7	148.5	149.1
Utility Solutions
Net Sales:
Net sales	3,261.7	2,871.1	2,334.4
Electrical Solutions
Net Sales:
Net sales	2,111.2	2,076.8	1,859.7
Operating Segments | Utility Solutions
Net Sales:
Net sales	3,261.7	2,871.1	2,334.4
Operating Income:
Operating Income	706.6	438.2	284.1
Assets:
Assets	4,601.1	3,011.9	2,823.8
Capital Expenditures:
Capital expenditures	97.3	86.9	55.8
Depreciation and Amortization:
Depreciation and amortization	103.4	99.2	108.5
Operating Segments | Electrical Solutions
Net Sales:
Net sales	2,111.2	2,076.8	1,859.7
Operating Income:
Operating Income	331.9	270.9	248.2
Assets:
Assets	1,923.1	1,972.9	2,142.1
Capital Expenditures:
Capital expenditures	64.8	39.5	31.1
Depreciation and Amortization:
Depreciation and amortization	46.3	49.3	40.6
General Corporate
Assets:
Assets	389.8	417.8	315.6
Capital Expenditures:
Capital expenditures	$ 3.6	$ 2.9	$ 3.3

Industry Segments and Geograp_5

Industry Segments and Geographic Area Information - Geographic Area (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Sales:
Net sales	$ 5,372.9	$ 4,947.9	$ 4,194.1
Operating Income:
Operating Income	1,038.5	709.1	532.3
Long-lived Assets:
Long-Lived Assets	4,739.5	3,375.8	3,397.1
Assets held for sale - non-current	91.9	0
Electrical Solutions
Net Sales:
Net sales	2,111.2	2,076.8	1,859.7
Discontinued Operations, Disposed of by Sale | Commercial and Industrial Lighting Business
Long-lived Assets:
Total assets held for sale			356.6
Assets held for sale - non-current			177.1
United States
Net Sales:
Net sales	4,922.4	4,536.4	3,809.8
Operating Income:
Operating Income	937	598.5	439.6
Long-lived Assets:
Long-Lived Assets	4,250.7	2,983.5	3,038.1
United States | Electrical Solutions
Net Sales:
Net sales	1,831.7	1,820.6	1,604.9
International
Net Sales:
Net sales	450.5	411.5	384.3
Operating Income:
Operating Income	101.5	110.6	92.7
Long-lived Assets:
Long-Lived Assets	488.8	392.3	359
International | Electrical Solutions
Net Sales:
Net sales	$ 279.5	$ 256.2	$ 254.8

Guarantees (Details)

Guarantees (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	$ 46.2	$ 66.1
Provision	6.1	12.7
Expenditures/other	(13.1)	(32.6)
Ending balance	$ 39.2	$ 46.2

Restructuring Costs - By Segmen

Restructuring Costs - By Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	$ 5.4	$ 10.3	$ 3.9
Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	4.4	9.9	2.4
S&A expense
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	1	0.4	1.5
Utility Solutions
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	2.9	4	2.4
Utility Solutions | Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	2.7	4.5	1.3
Utility Solutions | S&A expense
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	0.2	(0.5)	1.1
Electrical Solutions
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	2.5	6.3	1.5
Electrical Solutions | Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	1.7	5.4	1.1
Electrical Solutions | S&A expense
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	$ 0.8	$ 0.9	$ 0.4

Restructuring Costs - Reserve (

Restructuring Costs - Reserve (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	$ 7.9
Pre-tax Restructuring Costs	5.4	$ 10.3	$ 3.9
Utilization and Foreign Exchange	(9.3)
Ending accrued restructuring balance	4	7.9
2023 Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	0
Pre-tax Restructuring Costs	1.2	0	$ 0
Utilization and Foreign Exchange	(0.3)
Ending accrued restructuring balance	0.9	0
2022 and Prior Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	7.9
Pre-tax Restructuring Costs	4.2
Utilization and Foreign Exchange	(9)
Ending accrued restructuring balance	3.1	7.9
Severance | 2023 Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	0
Pre-tax Restructuring Costs	0.9
Utilization and Foreign Exchange	0
Ending accrued restructuring balance	0.9	0
Severance | 2022 and Prior Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	7.5
Pre-tax Restructuring Costs	0.3
Utilization and Foreign Exchange	(4.8)
Ending accrued restructuring balance	3	7.5
Asset write-downs | 2023 Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	0
Pre-tax Restructuring Costs	0
Utilization and Foreign Exchange	0
Ending accrued restructuring balance	0	0
Asset write-downs | 2022 and Prior Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	0
Pre-tax Restructuring Costs	0
Utilization and Foreign Exchange	0
Ending accrued restructuring balance	0	0
Facility closure and other costs | 2023 Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	0
Pre-tax Restructuring Costs	0.3
Utilization and Foreign Exchange	(0.3)
Ending accrued restructuring balance	0	0
Facility closure and other costs | 2022 and Prior Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning accrued restructuring balance	0.4
Pre-tax Restructuring Costs	3.9
Utilization and Foreign Exchange	(4.2)
Ending accrued restructuring balance	$ 0.1	$ 0.4

Restructuring Costs - Summary o

Restructuring Costs - Summary of Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Expected Costs	$ 28.5
Costs incurred to date	5.4	$ 10.3	$ 3.9
Remaining costs	8.9
2023 Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	6.1
Costs incurred to date	1.2	0	0
Remaining costs	4.9
2022 Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	19.4
Costs incurred to date	4.2	11.2	0
Remaining costs	4
2021 and Prior Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	3
Costs incurred to date	0	(0.9)	3.9
Remaining costs	0
Utility Solutions
Restructuring Cost and Reserve [Line Items]
Costs incurred to date	2.9	4	2.4
Utility Solutions | 2023 Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	2.2
Costs incurred to date	0	0	0
Remaining costs	2.2
Utility Solutions | 2022 Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	8.6
Costs incurred to date	2.9	4.7	0
Remaining costs	1
Utility Solutions | 2021 and Prior Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	1.7
Costs incurred to date	0	(0.7)	2.4
Remaining costs	0
Electrical Solutions
Restructuring Cost and Reserve [Line Items]
Costs incurred to date	2.5	6.3	1.5
Electrical Solutions | 2023 Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	3.9
Costs incurred to date	1.2	0	0
Remaining costs	2.7
Electrical Solutions | 2022 Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	10.8
Costs incurred to date	1.3	6.5	0
Remaining costs	3
Electrical Solutions | 2021 and Prior Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Expected Costs	1.3
Costs incurred to date	0	$ (0.2)	$ 1.5
Remaining costs	$ 0

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Term of leases (in years)	10 years
Options to extend, term (in years)	5 years
Termination period (in years)	1 year
Operating lease expense	$ 37.7	$ 35.7	$ 34.1
Cash outflow for operating leases	34.8	36.3
Right-of-use assets obtained in exchange for operating lease liabilities	$ 79.8	$ 58.9
Operating lease, weighted average remaining lease term (in years)	4 years 9 months 18 days	5 years 6 months
Operating lease, weighted average discount rate (as a percent)	3.80%	3.20%
2023 Acquisitions
Lessee, Lease, Description [Line Items]
Right-of-use assets obtained in exchange for operating lease liabilities	$ 1.4
2022 Acquisitions
Lessee, Lease, Description [Line Items]
Right-of-use assets obtained in exchange for operating lease liabilities		$ 7.4

Leases - Amounts Recognized for

Leases - Amounts Recognized for Leases (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Leases, Operating [Abstract]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Operating lease right-of-use assets	$ 147.1	$ 108
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other accrued liabilities	Other accrued liabilities
Current operating lease liabilities	$ 30.6	$ 30.5
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Non-Current Liabilities	Other Non-Current Liabilities
Other non-current liabilities	$ 118.8	$ 84.9
TOTAL LIABILITIES	$ 149.4	$ 115.4

Leases - Maturities of Lease Li

Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Operating Leases
Year One	$ 36.2	$ 33.8
Year Two	32.9	23.9
Year Three	27.1	17.7
Year Four	23.8	14.3
Year Five	20.5	12.3
Thereafter	27	24.5
Total Payments	167.5	126.5
Imputed Interest	(18.1)	(11.1)
Total	$ 149.4	$ 115.4

Valuation and Qualifying Acco_2

Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowances for doubtful accounts receivable:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 14.3	$ 10.6	$ 10.6
Additions / (Reversals) Charged to Costs and Expenses	(0.2)	7.2	2
Deductions	(2.5)	(3.5)	(2)
Balance at End of Year	11.6	14.3	10.6
Allowances for doubtful accounts receivable: | Cumulative Effect, Period of Adoption, Adjusted Balance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year		10.6
Balance at End of Year			10.6
Allowance for credit memos, returns and cash discounts:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	44.1	34.7	31.9
Additions / (Reversals) Charged to Costs and Expenses	365.5	365.1	296.5
Deductions	(371.4)	(355.7)	(293.7)
Balance at End of Year	38.2	44.1	34.7
Valuation allowance on deferred tax assets:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	32.2	32.6	29.5
Additions / (Reversals) Charged to Costs and Expenses	5.2	(0.4)	3.1
Deductions	0	0	0
Balance at End of Year	$ 37.4	$ 32.2	$ 32.6