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Unrestricted Cash Debt Instrument, Covenant, Unrestricted Cash Net income of acquiree since acquisition date Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Standard and Extended Product Warranty Accrual, Additions from Business Acquisition Standard and Extended Product Warranty Accrual, Additions from Business Acquisition Business Combination and Asset Acquisition [Abstract] Weighted-average grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Business Acquisition [Axis] Business Acquisition [Axis] Shares surrendered by employees to pay taxes (in shares) Shares Surrendered By Employees Shares Shares Surrendered By Employees, Shares Pension and other post-retirement compensation and benefits Liability, Defined Benefit Plan, Noncurrent Award Type [Domain] Award Type [Domain] 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[Member] Pleatco (Gain) loss on sale of assets Gain (Loss) on Disposition of Other Assets Total restructuring costs Restructuring costs Restructuring Charges Accounts payable Accounts Payable, Current Restructuring Costs By Segment RestructuringCostsBySegment [Table Text Block] The amount of restructuring costs incurred by reportable segment. 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Three 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] Dividends declared Dividends, Common Stock Accumulated other comprehensive loss AOCI Attributable to Parent [Member] Q4 2022 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Inventories Increase (Decrease) in Inventories Restructuring Accrual Activity Recorded on Consolidated Balance Sheets Restructuring and Related Costs [Table Text Block] Derivative [Table] Derivative [Table] 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Current Entity Central Index Key Entity Central Index Key Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Debt term Debt Instrument, Term Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Customer relationships Customer Relationships [Member] Property, plant and equipment, net Total property, plant and equipment, net Property, Plant and Equipment, Net Prepaid expenses Other Prepaid Expense, Current Other non-current liabilities Total other non-current liabilities Other Liabilities, Noncurrent Operating Activities [Axis] Operating Activities [Axis] Capitalized software Capitalized Computer Software, Gross Lender Name [Axis] Lender Name [Axis] Recorded Amounts and Estimated Fair Values of Long-term Debt and Derivative Financial Instruments Schedule of Long-term Debt Instruments [Table Text Block] Estimated Future Amortization Expense for Identifiable Intangible Assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Debt Instrument [Line Items] Debt Instrument [Line Items] Repayments of long-term debt Repayments of Long-term Debt Trading Symbol Trading Symbol Earnings (loss) per ordinary share Earnings Per Share [Abstract] Pro forma net sales Business Acquisition, Pro Forma Revenue Total property, plant and equipment Property, Plant and Equipment, Gross Net sales Revenues Foreign Exchange Contract Foreign Exchange Contract [Member] Finished goods Inventory, Finished Goods, Gross Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Long-term Debt, Increase to obligation Long-term Debt, Increase to obligation Long-term Debt, Increase to obligation Long-term debt Long-term Debt, Excluding Current Maturities Leverage ratio covenant period Debt Instrument, Leverage Ratio Covenant Period Debt Instrument, Leverage Ratio Covenant Period Schedule of Goodwill [Table] Schedule of Goodwill [Table] Other transformation Other transformation [Member] Other transformation Entity Current Reporting Status Entity Current Reporting Status Earnings per common share attributable to Pentair plc Earnings Per Share, Basic and Diluted [Abstract] Transformation costs Transformation costs Transformation costs Transformation costs Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Net income Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Amortization of Bridge Financing Fees Amortization of Debt Issuance Costs Counterparty Name [Axis] Counterparty Name [Axis] Transformation severance and related costs Transformation severance and related costs [Member] Transformation severance and related costs Contract assets Cost in excess of billings Contract with Customer, Asset, after Allowance for Credit Loss, Current Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents U.S. UNITED STATES Ordinary shares, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Other non-current liabilities Other Long Term Liabilities Other Long Term Liabilities Current assets Assets, Current [Abstract] Statement of Comprehensive Income [Abstract] Cost Finite-Lived Intangible Assets, Gross Payments upon the maturity of cross currency swaps Payments upon the maturity of cross currency swaps Payments for Hedge, Financing Activities Loss from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Entity Address, Postal Zip Code Entity Address, Postal Zip Code Exercise of options, net of shares tendered for payment (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Diluted (shares) Diluted (shares) Weighted Average Number of Shares Outstanding, Diluted Other comprehensive income, net of tax Other Comprehensive Income (Loss), Net of Tax Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Income Taxes Income Tax Disclosure [Text Block] Weighted average ordinary shares outstanding Weighted Average Number of Shares Outstanding, Basic [Abstract] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Country Region Country Region Write-offs, net of recoveries Accounts Receivable, Allowance for Credit Loss, Writeoff Shareholders' Equity Stockholders' Equity Note Disclosure [Text Block] Schedule of Net Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Measurement Basis [Axis] Other non-current assets and liabilities Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Five Land and land improvements Land and Land Improvements Net contract assets Contract With Customer, Asset (Liability), Net Contract With Customer, Asset (Liability), Net Other liabilities Other non-current liabilities Other Liabilities, Noncurrent [Abstract] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Currency Swap Currency Swap [Member] Credit Facility [Axis] Credit Facility [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Entity Address, Address Line One Entity Address, Address Line One Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities Entity Address, Address Line Two Entity Address, Address Line Two Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Reconciliation of Operating Profit (Loss) from Segments to Consolidated Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Changes in assets and liabilities, net of effects of business acquisitions Increase (Decrease) in Operating Capital [Abstract] Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Entity Shell Company Entity Shell Company Expected term (years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Total current liabilities Liabilities, Current Industrial Industrial Sector [Member] Industrial Sector [Member] Credit facility maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Current Fiscal Year End Date Current Fiscal Year End Date Common stock authorized for repurchase, expiration date Stock Repurchase Program Expiration Date Net cash provided by operating activities of continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Buildings and leasehold improvements Buildings and Improvements, Gross Statement [Table] Statement [Table] Other current assets Total other current assets Other Assets, Current Gain on derivative hedge Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax Senior Notes 4.500% Due 2029 Senior Notes 4.500% Due 2029 [Member] Senior Notes 4.500% Due 2029 Statistical Measurement [Axis] Statistical Measurement [Axis] Subsequent Event Subsequent Event [Member] Senior Notes 4.650% Due 2025 Senior Notes Four Point Six Five Percent Due Twenty Twenty Five [Member] Senior Notes Four Point Six Five Percent Due Twenty Twenty Five [Member] Net Finite-Lived Intangible Assets, Net Goodwill Beginning Balance Ending Balance Goodwill Industrial & Flow Technologies Industrial & Flow Technologies [Member] Industrial & Flow Technologies Construction in progress Construction in Progress, Gross Ken's Beverage Inc Ken's Beverage Inc [Member] Ken's Beverage Inc Net income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest NAV Fair Value Measured at Net Asset Value Per Share [Member] Scenario [Domain] Scenario [Domain] Carrying Amount of Goodwill by Segment Schedule of Goodwill [Table Text Block] Adjustments to reconcile net income from continuing operations to net cash provided by (used for) operating activities of continuing operations Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Ordinary shares $0.01 par value, 426.0 authorized, 164.5 and 165.1 issued at September 30, 2022 and December 31, 2021, respectively Common Stock, Value, Outstanding Accounts Receivable, Allowance for Credit Loss Accounts Receivable, Allowance for Credit Loss [Table Text Block]