Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Trading Symbol Trading Symbol Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Entity Shell Company Entity Shell Company Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Public Float Entity Public Float Retirement Benefits [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Total Fair Value, Inputs, Level 1, 2 and 3 [Member] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Investments measured at NAV Fair Value Measured at Net Asset Value Per Share [Member] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Cash Defined Benefit Plan, Cash and Cash Equivalents [Member] Fixed income Fixed Income Securities [Member] Other Investments Other Investments [Member] Investment Type [Axis] Investment Type [Axis] Investment Type Categorization [Domain] Investments [Domain] Foreign Government Foreign Government [Member] Foreign Government [Member] US Treasury Securities US Treasury Securities [Member] Collateralized Mortgage Backed Securities Collateralized Mortgage Backed Securities [Member] Other securities Other Securities [Member] Other securities [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Fair value of plan assets Defined Benefit Plan, Plan Assets, Amount Condensed Financial Information Disclosure [Abstract] Schedule of Condensed Financial Statements [Table] Condensed Financial Statements [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Parent Company Guarantor Parent Company [Member] Subsidiary Guarantor Guarantor Subsidiaries [Member] Subsidiary Issuer Subsidiary Issuer [Member] Non-Guarantor Subsidiaries Non-Guarantor Subsidiaries [Member] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Eliminations Consolidation, Eliminations [Member] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Net sales Revenue from Contract with Customer, Excluding Assessed Tax Cost of goods sold Cost of Goods and Services Sold Gross profit Gross Profit Selling, general and administrative Selling, General and Administrative Expense Research and development Research and Development Expense Operating income Operating Income (Loss) Loss (earnings) from investment in subsidiaries Gain (Loss) on Investments Other (income) expense: Other Nonoperating Income (Expense) [Abstract] Loss on sale of businesses Gain (Loss) on Disposition of Business Loss on early extinguishment of debt Gain (Loss) on Extinguishment of Debt Net interest expense Interest Expense Other expense (income) Other Income Other expense Other Expenses Income from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income (loss) from discontinued operations, net of tax Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Gain from sale / impairment of discontinued operations, net of tax Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax Earnings (loss) from discontinued operations of investment in subsidiaries Discontinued Operation, Income (Loss) From Investment In Subsidiaries Discontinued Operation, Income (Loss) from Investment in Subsidiaries Net income Net Income (Loss) Attributable to Parent Net income (loss) from continuing operations before noncontrolling interest Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Comprehensive income, net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Changes in cumulative translation adjustment (inclusive of divestiture of business reclassified to gain from sale of $374.2 for the year ended December 31, 2017) Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Changes in market value of derivative financial instruments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Reconciliations of Benefit Obligations, Plan Assets of Pension Plans and Funded Status of Plans Schedule of Defined Benefit Plans Disclosures [Table Text Block] Amounts Recognized in Consolidated Balance Sheets Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Pension Plans with an Accumulated Benefit Obligation or Projected Benefit Obligation in Excess of Plan Assets Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] Components of Net Periodic Benefit Cost Schedule of Net Benefit Costs [Table Text Block] Weighted-Average Assumptions used to Determine Domestic Benefit Obligations and Domestic Net Periodic Benefit Cost Schedule of Assumptions Used [Table Text Block] Assumed Health Care Cost Trend Rates Schedule of Health Care Cost Trend Rates [Table Text Block] Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] Actual Overall Asset Allocation for U.S. And Non-U.S. Plans as Compared to Investment Policy Goals Schedule Of Target And Actual Allocation Of Plan Assets Table [Text Block] Schedule of Target and Actual Allocation of Plan Assets [Table Text Block] Plan Assets Using Fair Value Hierarchy Schedule of Allocation of Plan Assets [Table Text Block] Expected Future Service to Be Paid by Plans Schedule of Expected Benefit Payments [Table Text Block] Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Line of Credit Line of Credit [Member] Senior Notes Senior Notes [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving credit facilities Revolving Credit Facility [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Senior notes 2.900% due 2018 Senior Notes Two Point Nine Percent Due Twenty Eighteen [Member] Senior Notes Two Point Nine Percent Due Twenty Eighteen [Member] Senior Notes 2.450% due 2019 Senior Notes Two Point Four Five Percent Due Twenty Nineteen [Member] Senior Notes Two Point Four Five Percent Due Twenty Nineteen [Member] Senior Notes Maturing In 2019 Senior Notes Maturing In 2019 [Member] Senior Notes Maturing In 2019 [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Other Credit Facilities Other Credit Facilities [Member] Other Credit Facilities [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt term Debt Instrument, Term Credit facility maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of credit increase limit Line of Credit Facility, Accordion Feature, Increase Limit Line of Credit Facility, Accordion Feature, Increase Limit Commercial paper Commercial Paper Covenant, unrestricted cash Debt Instrument, Covenant, Unrestricted Cash Debt Instrument, Covenant, Unrestricted Cash Leverage ratio covenant Debt Instrument, Leverage Ratio Covenant Debt Instrument, Leverage Ratio Covenant EBITDA ratio covenant Debt Instrument, EBITDA Ratio Covenant Debt Instrument, EBITDA Ratio Covenant Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Line of credit facility, amount outstanding Long-term Line of Credit Proceeds from divestiture of businesses Proceeds from Divestiture of Businesses Long-term debt Long-term Debt Debt, interest rate Debt Instrument, Interest Rate, Stated Percentage Cash tender offer Debt Instrument, Cash Tender Offer Debt Instrument, Cash Tender Offer Loss on extinguishment of debt, before write off of debt issuance cost Gain (Loss) on Extinguishment of Debt, before Write off of Debt Issuance Cost Write off of deferred debt issuance cost Write off of Deferred Debt Issuance Cost Repayments of debt Repayments of Debt Loss on early extinguishment of debt Restructuring and Related Activities [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Beginning balance Restructuring Reserve Costs incurred Restructuring and Related Cost, Incurred Cost Cash payments and other Payments for Restructuring Ending balance Restructuring Restructuring and Related Activities Disclosure [Text Block] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Aquatic Systems Aquatic Systems [Member] Aquatic Systems [Member] Filtration Solutions Filtration Solutions [Member] Filtration Solutions [Member] Flow Technologies Flow Technologies [Member] Flow Technologies [Member] Other Corporate and Other [Member] Number of employees Restructuring and Related Cost, Number of Positions Eliminated Restructuring costs Restructuring Charges Business Combination And Disposal Groups, Including Discontinued Operations, Disclosure [Abstract] Business Combination And Disposal Groups, Including Discontinued Operations, Disclosure [Abstract] Divestitures [Table] Divestitures [Table] Divestitures [Table] Operating Activities [Axis] Operating Activities [Axis] Operating Activities [Domain] Operating Activities [Domain] Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Discontinued Operations Discontinued Operations [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Separation costs Separation costs Separation costs Business exit costs Business Exit Costs Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2012 Stock and Incentive Plan Stock Incentive Plan Twenty Twelve [Member] Stock Incentive Plan Twenty Twelve [Member] Award Type [Axis] Award Type [Axis] Award Type Equity Award [Domain] Stock Options Employee Stock Option [Member] Restricted Stock and Restricted Stock Units (RSUs) Restricted Stock And Restricted Stock Units (RSUs) [Member] Restricted Stock And Restricted Stock Units (RSUs) [Member] Restricted Stock Units Restricted Stock Units (RSUs) [Member] Equity Option Equity Option [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Performance Shares Performance Shares [Member] Award Date [Axis] Award Date [Axis] Award Date [Domain] Award Date [Domain] Grant Date 2016 Grant Date Of Two Thousand Sixteen [Member] Grant Date Of Two Thousand Sixteen [Member] Grant Date 2017 Grant Date Of Two Thousand Seventeen [Member] Grant Date Of Two Thousand Seventeen [Member] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Tranche 1 Share-based Compensation Award, Tranche One [Member] Tranche 2 Share-based Compensation Award, Tranche Two [Member] Tranche 3 Share-based Compensation Award, Tranche Three [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based compensation expense Share-based Compensation [Abstract] Share-based compensation Disposal Group, Including Discontinued Operations, Share-based Compensation Expense Disposal Group, Including Discontinued Operations, Share-based Compensation Expense Share Incentive Plans Share Incentive Plans [Abstract] Share Incentive Plans [Abstract] Number of shares authorized for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Expiration period Share Based Compensation Arrangement By Share Based Payment Award Expiry Period From Date Of Grant Share Based Compensation Arrangement By Share Based Payment Award Expiry Period From Date Of Grant Fair value of options granted Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Weighted average grant date fair value of options granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Total intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Unrecognized compensation cost related to stock options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Cash received from option exercises Proceeds from Stock Options Exercised Tax benefit realized for tax deductions from option exercises Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options Weighted average grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Unrecognized compensation cost related to restricted stock units Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options Weighted average period to recognize compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Total fair value of shares vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Tax benefit realized for tax deductions from option exercises Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Spin-off transaction, equity interests issued per ordinary predecessor share (in share) Spinoff Transaction, Equity Interests Issued Per Ordinary Predecessor Share Spinoff Transaction, Equity Interests Issued Per Ordinary Predecessor Share Conversion rate of target Share-based Compensation Arrangement by Share-based Payment Award, Conversion Rate Of Target Share-based Compensation Arrangement by Share-based Payment Award, Conversion Rate Of Target Commitments and Contingencies Disclosure [Abstract] Loss Contingencies [Table] Loss Contingencies [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Outstanding Value Of Letters Of Credit Letters of Credit Outstanding, Amount Disclosure Supplemental Balance Sheet Information [Abstract] Disclosure - Supplemental Balance Sheet Information [Abstract] Supplemental Balance Sheet Information Supplemental Balance Sheet Disclosures [Text Block] Pension plan assets yielded returns Historical Rate Of Return On Plan Assets Historical Rate of Return on Plan Assets Schedule of Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Stockholders' Equity Note [Abstract] Stockholders Equity Note Disclosure [Table] Stockholders Equity Note Disclosure [Table] Stockholders Equity Note Disclosure [Table] Future dividends [Axis] Future dividends [Axis] Future dividends [Axis] Future dividends [Domain] Future dividends [Domain] [Domain] for Future dividends [Axis] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] December 2014 Share Repurchase Program [Member] [Domain] December 2014 Share Repurchase Program [Member] [Domain] December 2014 Share Repurchase Program [Member] May 2018 Share Repurchase Program [Member] May 2018 Share Repurchase Program [Member] May 2018 Share Repurchase Program [Member] December 2014 Share Repurchase Program [Member] December 2014 Share Repurchase Program [Member] December 2014 Share Repurchase Program [Member] Shareholders Equity Stockholders Equity Note Disclosure [Line Items] Stockholders Equity Note Disclosure [Line Items] Common stock, shares authorized Common Stock, Shares Authorized Common stock, par value (per share) Common Stock, Par or Stated Value Per Share Authorized amount to repurchase shares of common stock Stock Repurchase Program, Authorized Amount Stock Repurchase Program Expiration Date Stock Repurchase Program Expiration Date Common stock shares repurchased, shares Treasury Stock, Shares, Acquired Stock Repurchased During Period, Value Stock Repurchased During Period, Value Remaining authorized repurchase amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Dividends payable amount per share Dividends Payable, Amount Per Share ApprovedNotDeclaredlDividends ApprovedNotDeclaredlDividends Approved by not declared dividend amount by the BOD for the next fiscal year. Dividends payable Dividends Payable, Current Dividends paid per common share Common Stock, Dividends, Per Share, Cash Paid Accounting Policies [Abstract] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Land Improvements Land Improvements [Member] Buildings and Leasehold Improvements Buildings And Leasehold Improvements [Member] Buildings and Leasehold Improvements [Member] Machinery and Equipment Machinery and Equipment [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Estimated Useful lives Property, Plant and Equipment, Useful Life Commercial Paper Commercial Paper [Member] Senior Notes 2.650% due 2019 Senior Notes Two Point Six Five Zero Percent Due Twenty Nineteen [Member] Senior Notes Two Point Six Five Zero Percent Due Twenty Nineteen [Member] Senior Notes 3.625% due 2020 Senior Notes Three Point Six Two Five Percent Due Twenty Twenty [Member] Senior Notes Three Point Six Two Five Percent Due Twenty Twenty [Member] Senior Notes, 5.000% Due 2021 Senior Notes Five Point Zero Zero Zero Percent Due Twenty Twenty One [Member] Senior Notes, 5.000 Percent Due 2021 [Member] Senior Notes 3.150% due 2022 Senior Notes Three Point One Five Zero Percent Due Twenty Twenty Two [Member] Senior Notes Three Point One Five Zero Percent Due Twenty Twenty Two [Member] Senior Notes 4.650% Senior Notes Four Point Six Five Percent Due Twenty Twenty Five [Member] Senior Notes Four Point Six Five Percent Due Twenty Twenty Five [Member] Average interest rate at end of period Debt, Weighted Average Interest Rate Debt, gross Long-term Debt, Gross Unamortized issuance costs and discounts Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Total debt Supplemental Balance Sheet Information [Table] Supplemental Balance Sheet Information [Table] Supplemental Balance Sheet Information [Table] Supplemental Balance Sheet Information [Line Items] Supplemental Balance Sheet Information [Line Items] Supplemental Balance Sheet Information [Line Items] Inventories Inventory Disclosure [Abstract] Raw materials and supplies Inventory, Raw Materials and Supplies, Gross Work-in-process Inventory, Work in Process, Gross Finished goods Inventory, Finished Goods, Gross Total inventories Inventory, Net Other current assets Other Assets Current [Abstract] Other Assets, Current [Abstract] Cost in excess of billings Costs in Excess of Billings Prepaid expenses Prepaid Expense, Current Deferred income taxes Prepaid Taxes Other Current Assets Other Current Assets Other Current Assets Total other current assets Other Assets, Current Property, plant and equipment, net Property, Plant and Equipment, Net, by Type [Abstract] Land and land improvements Land and Land Improvements Buildings and leasehold improvements Buildings and Improvements, Gross Machinery and equipment Machinery and Equipment, Gross Construction in progress Construction in Progress, Gross Total property, plant and equipment Property, Plant and Equipment, Gross Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total property, plant and equipment, net Property, Plant and Equipment, Net prepaid taxes long term prepaid taxes long term prepaid taxes long term Other non-current assets Other Assets, Noncurrent [Abstract] Prepaid Taxes, Noncurrent Prepaid Taxes, Noncurrent Prepaid Taxes, Noncurrent Deferred Compensation Plan Assets Deferred Compensation Plan Assets Other non-current assets Other Long Term Assets Other long term assets, excluding asbestos-related insurance receivables and deferred income taxes. Total other non-current assets Other Assets, Noncurrent Other current liabilities Liabilities, Current [Abstract] Accrued warranty Product Warranty Accrual, Current Accrued Exchange Fee Rebate Accrued Exchange Fee Rebate Billings in excess of cost Billings in Excess of Cost, Current Taxes Payable Taxes Payable Restructuring Reserve Other current liabilities Other Liabilities, Current Total other current liabilities Other Accrued Liabilities, Current Other non-current liabilities Other Liabilities, Noncurrent [Abstract] Taxes payable Accrued Income Taxes, Noncurrent Self Insurance Reserve, Noncurrent Self Insurance Reserve, Noncurrent Deferred Compensation Liability, Current Deferred Compensation Liability, Current Foreign Currency Contracts, Liability, Fair Value Disclosure Foreign Currency Contracts, Liability, Fair Value Disclosure Other non-current liabilities Other Long Term Liabilities Other Long Term Liabilities Total other non-current liabilities Other Liabilities, Noncurrent Income Statement [Abstract] Operating income Other (income) expense Net interest expense Interest Income (Expense), Net Other Income Net income from continuing operations Income from discontinued operations, net of tax Income (loss) from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net income Changes in market value of derivative financial instruments, net of tax Earnings per ordinary share Earnings Per Share [Abstract] Continuing operations (USD per share) Income (Loss) from Continuing Operations, Per Basic Share Discontinued operations (USD per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Basic earnings per ordinary share (USD per share) Earnings Per Share, Basic Continuing operations (USD per share) Income (Loss) from Continuing Operations, Per Diluted Share Discontinued operations (USD per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Diluted earnings per ordinary share (USD per share) Earnings Per Share, Diluted Weighted average ordinary shares outstanding Weighted Average Number of Shares Outstanding, Basic [Abstract] Basic (shares) Weighted Average Number of Shares Outstanding, Basic Diluted (shares) Weighted Average Number of Shares Outstanding, Diluted Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Supplemental Guarantor Information Condensed Financial Statements [Text Block] Contract assets Contract with Customer, Asset, Net, Current Contract liabilities Contract with Customer, Liability Net contract assets Contract With Customer, Asset (Liability), Net Contract With Customer, Asset (Liability), Net $ Change Contract With Customer, Asset, Increase (Decrease), Amount [Abstract] Contract with Customer, Asset, Increase (Decrease), Amount Contract assets Contract With Customer, Asset, Increase (Decrease), Amount Contract with Customer, Asset, Increase (Decrease), Amount Contract liabilities Contract With Customer, Liability, Increase (Decrease), Amount Contract with Customer, Liability, Increase (Decrease), Amount Net contract assets Contract With Customer, Asset (Liability), Net, Increase (Decrease), Amount Contract with Customer, Asset (Liability), Net, Increase (Decrease), Amount % Change Contract With Customer, Asset, Increase (Decrease), Percent [Abstract] Contract With Customer, Asset, Increase (Decrease), Percent [Abstract] Contract assets Contract With Customer, Asset, Increase (Decrease), Percent Contract With Customer, Asset, Increase (Decrease), Percent Contract liabilities Contract With Customer, Liability, Increase (Decrease), Percent Contract With Customer, Liability, Increase (Decrease), Percent Net contract assets Contract With Customer, Asset (Liability), Net, Increase (Decrease), Percent Contract With Customer, Asset (Liability), Net, Increase (Decrease), Percent Percent of contract liabilities Contract with Customer, Liability, Revenue Recognized, Percent Contract with Customer, Liability, Revenue Recognized, Percent Impairment losses on contract assets Contract with Customer, Asset, Credit Loss Expense Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Acquired Intangible Assets by Major Class [Table] Schedule Of Acquired Intangible Assets By Major Class [Table] Schedule of Acquired Intangible Assets by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer relationships Customer Relationships [Member] Trade names Trade Names [Member] Patented Technology [Member] Patented Technology [Member] Acquired Intangible Assets by Major Class [Line Items] Acquired Intangible Assets By Major Class [Line Items] Acquired Intangible Assets by Major Class [Line Items] Impairment of Intangible Assets (Excluding Goodwill) Impairment of Intangible Assets (Excluding Goodwill) Finite-life intangibles, cost Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Finite-life intangibles, net Finite-Lived Intangible Assets, Net Indefinite-life intangibles Indefinite-lived Intangible Assets (Excluding Goodwill) Total intangibles, cost Intangible Assets, Gross (Excluding Goodwill) Total intangibles, net Intangible Assets, Net (Excluding Goodwill) Net rental expense Operating Lease Expense [Text Block] Operating Lease Expense Net future minimum lease commitments Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Changes in Carrying Amount of Service and Product Warranties Schedule of Product Warranty Liability [Table Text Block] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Pension plans Pension Plan [Member] Other post-retirement plans Other Postretirement Benefits Plan [Member] Change in benefit obligations Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Benefit obligation beginning of year Defined Benefit Plan, Benefit Obligation Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Actuarial loss Defined Benefit Plan Recognized Actuarial Net Gains Losses Defined Benefit Plan Recognized Actuarial Net Gains Losses Translation (gain) loss Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Benefit obligation end of year Change in plan assets Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Fair value of plan assets beginning of year Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Company contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Translation gain (loss) Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Fair value of plan assets end of year Funded status Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] Plan assets less than benefit obligation Defined Benefit Plan, Funded (Unfunded) Status of Plan Expected Amortization Expense [Table] Expected Amortization Expense [Table] Expected Amortization Expense [Table] Business Segments [Axis] Segment [Domain] Amortization and Impairment Expected Amortization Expense [Line Items] Expected Amortization Expense [Line Items] Accumulated goodwill impairment losses Goodwill, Impaired, Accumulated Impairment Loss Amortization Amortization Impairment charges, related to trade names Condensed Consolidating Statement of Operations and Comprehensive Income (Loss) Condensed Income Statement [Table Text Block] Condensed Consolidating Balance Sheet Condensed Balance Sheet [Table Text Block] Condensed Consolidating Statement of Cash Flows Condensed Cash Flow Statement [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Aquion Aquion [Member] Aquion [Member] Pelican Pelican [Member] Pelican [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Payments to acquire businesses Payments to Acquire Businesses, Gross Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Finite-lived intangible assets acquired Finite-lived Intangible Assets Acquired Useful life Finite-Lived Intangible Asset, Useful Life Disclosure Valuation And Qualifying Accounts Disclosure Table [Abstract] Disclosure - Valuation And Qualifying Accounts Disclosure Table [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Allowance for Doubtful Accounts SEC Schedule, 12-09, Allowance, Credit Loss [Member] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Beginning balance SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Additions charged to costs and expenses SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Reductions credited SEC Schedule, 12-09, Valuation Allowances and Reserves, Addition, Recovery Deductions SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Other changes SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment Ending balance 2019 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2020 Long-term Debt, Maturities, Repayments of Principal in Year Two 2021 Long-term Debt, Maturities, Repayments of Principal in Year Three 2022 Long-term Debt, Maturities, Repayments of Principal in Year Four 2023 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Total debt Goodwill and Other Identifiable Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Components of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net cash provided by (used for) operating activities Net Cash Provided by (Used in) Operating Activities Investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures Payments to Acquire Property, Plant, and Equipment Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment (Payments due to) proceeds from sale of businesses and other Payments for (Proceeds from) Businesses and Interest in Affiliates Acquisitions, net of cash acquired Net intercompany loan activity Intercompany Loan Activity, Net Intercompany Loan Activity, Net Net cash provided by (used for) investing activities of continuing operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used for investing activities of discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Net cash provided by (used for) investing activities Net Cash Provided by (Used in) Investing Activities Financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Net receipts (repayments) of commercial paper and revolving long-term debt Proceeds from (Repayments of) Lines of Credit Proceeds from long-term debt Proceeds from Issuance of Long-term Debt Repayment of long-term debt Repayments of Long-term Debt Debt issuance costs Payments of Debt Issuance Costs Premium paid on early extinguishment of debt Payment for Debt Extinguishment or Debt Prepayment Cost Transfer of cash to nVent Cash Divested from Deconsolidation Distribution of cash from nVent Net change in advances to subsidiaries Payments For (Proceeds From Collection Of) Advance To Affiliate Payments For (Proceeds From 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Current Derivatives and Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Expected Amortization Expense Estimated amortization expense 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Estimated amortization expense 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two Estimated amortization expense 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three Estimated amortization expense 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four Estimated amortization expense 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Earnings Per Share [Table] Earnings Per Share [Table] Earnings Per Share [Table] Computation Of Earnings Per Share Line Items Computation Of Earnings Per Share [Line Items] Computation Of Earnings Per Share Line Items Net income Net income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Dilutive impact of stock options and restricted stock awards (shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Diluted (shares) Basic earnings (loss) per common share (USD per share) Diluted earnings (loss) per common share (USD per share) Anti-dilutive stock options excluded from the calculation of diluted earnings per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Selected Quarterly Data Quarterly Financial Information [Text Block] Assets Assets [Abstract] Current assets Assets, Current [Abstract] Cash and cash equivalents Accounts and notes receivable, net Accounts and Notes Receivable, Net Inventories Other current assets Current assets held for sale Total current assets Assets, Current Property, plant and equipment, net Other assets Investments in subsidiaries Investments in and Advances to Affiliates, Amount of Equity Goodwill Intangibles, net Long-term intercompany debt Long-Term Intercompany Debt Long-term intercompany debt Other non-current assets Non-current assets held for sale Total other assets Assets, Noncurrent Total assets Liabilities and Shareholders' Equity Liabilities and Equity [Abstract] Current liabilities Accounts payable Accounts Payable, Current Employee compensation and benefits Employee-related Liabilities, Current Other current liabilities Current liabilities held for sale Total current liabilities Liabilities, Current Other liabilities Long-term debt Long-term Debt, Excluding Current Maturities Pension and other post-retirement compensation and benefits Other non-current liabilities Non-current liabilities held for sale Total liabilities Liabilities Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Total equity Total liabilities and equity Liabilities and Equity Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Minimum lease payments Operating Leases [Member] Operating Leases [Member] Minimum sublease rentals Sublease [Member] Sublease [Member] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2022 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Supplemental Balance Sheet Information Supplemental Balance Sheet Information [Table Text Block] Supplemental Balance Sheet Information. Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measured at Net Asset Value Per Share [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring Fair Value, Measurements, Recurring [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Foreign currency contract assets Foreign Currency Contract, Asset, Fair Value Disclosure Foreign currency contract liabilities Deferred compensation plan assets Deferred Compensation Plan Assets Fair Value Disclosure Deferred Compensation Plan Assets, Fair Value Disclosure Total recurring fair value measurements Derivative Assets (Liabilities), at Fair Value, Net Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity method investment, ownership percentage Equity Method Investment, Ownership Percentage Plan Assets Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement [Abstract] Asset allocation Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage Target Allocation Defined Benefit Plan, Plan Assets, Allocations [Abstract] Asset allocation Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Accounts receivable, net of allowances of $14.0 and $14.2, respectively Liabilities and Equity Ordinary shares $0.01 par value, 426.0 authorized, 171.4 and 180.3 issued at December 31, 2018 and December 31, 2017, respectively Common Stock, Value, Outstanding Additional paid-in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Effect on total annual service and interest cost Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components Effect on other post-retirement benefit obligations Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation Effect on total annual service and interest cost Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components Effect on other post-retirement benefit obligations Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation Carrying value of intangible assets after impairment Carrying value of intangible assets after impairment Carrying value of intangible assets after impairment Pension plans with a projected benefit obligation in excess of plan assets: Defined Benefit Plan, Pension Plan with Project Benefit Obligation in Excess of Plan Assets [Abstract] Projected benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Fair value of plan assets Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets Pension plans with an accumulated benefit obligation in excess of plan assets: Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract] Projected benefit obligation Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Fair value of plan assets Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets Accumulated benefit obligation Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation Schedule of Compensation Cost Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Stock Option Activity Share-based Compensation, Stock Options, Activity [Table Text Block] Stock Option Fair Value Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Restricted Stock Activity Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] Performance Shares Award Outstanding Activity Share-based Compensation, Performance Shares Award Outstanding Activity [Table Text Block] Impairment of long-lived assets Impairment of Long-Lived Assets Held-for-use Deferred Tax Assets And Liabilities [Table] Deferred Tax Assets And Liabilities [Table] Deferred Tax Assets And Liabilities [Table] Deferred Tax Assets And Liabilities [Line Items] Deferred Tax Assets And Liabilities [Line Items] Deferred Tax Assets And Liabilities [Line Items] Deferred tax assets Deferred Tax Assets, Gross [Abstract] Accrued liabilities and reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Pension and other post-retirement compensation and benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits Employee compensation and benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation Tax loss and credit carryforwards Deferred Tax Assets, Operating Loss Carryforwards And Tax Credit Carryforwards Deferred Tax Assets, Operating Loss Carryforwards And Tax Credit Carryforwards Other assets Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Deferred tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Deferred tax liabilities Deferred Tax Liabilities, Gross [Abstract] Property, plant and equipment Deferred Tax Liabilities, Property, Plant and Equipment Goodwill and other intangibles Deferred Tax Liabilities, Goodwill and Intangible Assets Other liabilities Deferred Tax Liabilities, Other Deferred Tax Liabilities, Gross Deferred Tax Liabilities, Gross Currently payable Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) International Current Foreign Tax Expense (Benefit) Total current taxes Current Income Tax Expense (Benefit) Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) International Deferred Foreign Income Tax Expense (Benefit) Total deferred taxes Deferred Income Tax Expense (Benefit) Total provision (benefit) for income taxes Federal Income (Loss) from Continuing Operations before Income Taxes, Domestic International Income (Loss) from Continuing Operations before Income Taxes, Foreign Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Balances without adoption of ASC 606 Calculated under Revenue Guidance in Effect before Topic 606 [Member] Effect of Change Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-16 Accounting Standards Update 2016-16 [Member] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Assets Liabilities Liabilities [Abstract] Equity Equity [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Fiscal Year Fiscal Period, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Trade Receivables and Concentration of Credit Risk Trade and Other Accounts Receivable, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Property, Plant and Equipment, Net Property, Plant and Equipment, Policy [Policy Text Block] Goodwill and identifiable intangible assets Goodwill and Intangible Assets, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Pension and other post-retirement plans Pension and Other Postretirement Plans, Policy [Policy Text Block] Insurance Subsidiary Property Liability Reserve Estimate, Policy [Policy Text Block] Share-Based Compensation Compensation Related Costs, Policy [Policy Text Block] Earnings (Loss) Per Common Share Earnings Per Share, Policy [Policy Text Block] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] New accounting standards New Accounting Pronouncements, Policy [Policy Text Block] Basic and Diluted Earnings (Loss) Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] 2019 Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months 2020 Defined Benefit Plan, Expected Future Benefit Payment, Year Two 2021 Defined Benefit Plan, Expected Future Benefit Payment, Year Three 2022 Defined Benefit Plan, Expected Future Benefit Payment, Year Four 2023 Defined Benefit Plan, Expected Future Benefit Payment, Year Five Thereafter Defined Benefit Plan Expected Future Benefit Payments After Year Five Defined Benefit Plan, Expected Future Benefit Payments after Year Five Recorded Amounts and Estimated Fair Values of Long-term Debt and Derivative Financial Instruments Schedule of Long-term Debt Instruments [Table Text Block] Financial Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Restructuring Related Costs Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Restructuring Costs By Segment [Table Text Block] RestructuringCostsBySegment [Table Text Block] The amount of restructuring costs incurred by reportable segment. Restructuring Accrual Activity Recorded on Consolidated Balance Sheets Restructuring and Related Costs [Table Text Block] Quarterly Financial Information [Table] Quarterly Financial Information [Table] Quarterly Financial Information [Table] Quarterly Financial Information [Line Items] Quarterly Financial Information [Line Items] Quarterly Financial Information [Line Items] Net sales Revenues Gross profit Earnings Per Share, Basic (USD per share) Diluted Mark-to-market actuarial gains (losses) on pension and post-retirement benefit plans Debt and Average Interest Rates on Debt Outstanding Schedule of Debt [Table Text Block] Debt Outstanding Matures on Calendar Year Basis Schedule Of Maturities Of Debt Disclosure [Text Block] Schedule of Maturities of Debt Disclosure. Acquisitions and Discontinued Operations Business Combination And Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Business Combination And Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Shareholders' Equity Stockholders' Equity Note Disclosure [Text Block] Schedule of Effect of Fourth Quarter Events [Table] Effect of Fourth Quarter Events [Table] Effect of Fourth Quarter Events [Line Items] Effect of Fourth Quarter Events [Line Items] Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Effect of Change Scenario, Adjustment [Member] Accounting Standards Update 2016-02 Accounting Standards Update 2016-02 [Member] Accounting Standards Update 2017-07 Accounting Standards Update 2017-07 [Member] nVent nVent [Member] nVent New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Assets Liabilities Net periodic benefit cost Reclassification from AOCI to retained earnings Tax Cuts And Jobs Act Of 2017, Reclassification From Aoci To Retained Earnings Tax Cuts And Jobs Act Of 2017 Reclassification From Aoci To Retained Earnings Reduction in prepaid long-term asset Tax Cuts And Jobs Act Of 2017, Change In Tax Rate, Increase (Decrease) In Prepaid Long-Term Asset Tax Cuts And Jobs Act Of 2017, Change In Tax Rate, Increase (Decrease) In Prepaid Long-Term Asset Deferred tax asset, income tax expense Tax Cuts And Jobs Act Of 2017, Change In Tax Rate, Deferred Tax Asset, Income Tax Expense (Benefit) Tax Cuts And Jobs Act Of 2017, Change In Tax Rate, Deferred Tax Asset, Income Tax Expense (Benefit) Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Beginning balance Gross increases for tax positions in prior periods Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Gross decreases for tax positions in prior periods Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Gross increases based on tax positions related to the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Gross decreases related to settlements with taxing authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Reductions due to statute expiration Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Ending balance Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Severance and related costs Severance And Related Costs [Member] Severance And Related Costs [Member] Other Other Restructuring [Member]