Basis of Presentation (Policies)	3 Months Ended
Basis of Presentation (Policies)	Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	The accompanying unaudited Condensed Consolidated Financial Statements of Hubbell Incorporated (“Hubbell”, the “Company”, “registrant”, “we”, “our” or “us”, which references include its divisions and subsidiaries) have been prepared in accordance with generally accepted accounting principles (“GAAP”) for interim financial information. Accordingly, they do not include all of the information and footnotes required by United States of America (“U.S.”) GAAP for audited financial statements. In the opinion of management, all adjustments consisting only of normal recurring adjustments considered necessary for a fair statement of the results of the periods presented have been included. Operating results for the three months ended March 31, 2023 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2023. The balance sheet at December 31, 2022 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Hubbell Incorporated Annual Report on Form 10-K for the year ended December 31, 2022.
Discontinued Operations	Discontinued OperationsOn 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 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's results of operations and the related cash flows have been reclassified to income from discontinued operations in the Condensed Consolidated Statements of Income and cash flows from discontinued operations in the Condensed Consolidated Statement of Cash Flows, respectively, for all periods presented.
Impact of the COVID-19 Pandemic	Impact of the COVID-19 Pandemic The COVID-19 pandemic, which began in the first quarter of 2020, has had, and may continue to have, a significant lingering effect on global economic conditions. U.S. Federal, state, local, and foreign governments reacted to the public health crisis with mitigation measures, creating significant uncertainties in the U.S. and global economies. Although the most significant effects of the pandemic have largely subsided, the extent to which the lingering impacts of the coronavirus pandemic will continue to affect our business, operations, supply chains, inflation, interest rates, economic conditions and our financial results will depend on numerous evolving factors that we may not be able to accurately predict and which may cause the actual results to differ from the estimates and assumptions we are required to make in the preparation of financial statements according to GAAP.
Recently Issued Accounting Pronouncements	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 in the Company’s Condensed Consolidated Balance Sheet, of which, $96.7 million and $91.9 million was outstanding at March 31, 2023 and December 31, 2022, respectively. Either party may terminate the agreements with 30 days written notice. Cash flows under the program are reported in operating activities in the Company’s Condensed Consolidated Statement of Cash Flows. 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 Condensed Consolidated Balance Sheet, of which, $2.7 million and $1.9 million was outstanding at March 31, 2023 and December 31, 2022, respectively. Cash flows under the program are reported in financing activities in the Company’s Condensed 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. The amendments are effective for all entities beginning on March 12, 2020 through December 31, 2022. The Company may elect to apply the amendments prospectively through December 31, 2022. 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 is currently assessing the impact of adopting this standard on its financial statements and the timing of adoption.