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Discontinued Operations and Divestitures Additional Information (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 27, 2014 | Jun. 28, 2014 | Mar. 29, 2014 | Dec. 31, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses |  |  |  |  |  |  |  |  | $ 0.3 us-gaap_ProceedsFromDivestitureOfBusinesses | $ 43.5 us-gaap_ProceedsFromDivestitureOfBusinesses | $ 0 us-gaap_ProceedsFromDivestitureOfBusinesses
Discontinued Operation, Tax (Expense) Benefit from Provision for (Gain) Loss on Disposal |  | 12.3 us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal |  | 2.4 us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal | 0.3 us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal |  |  |  | 14.7 us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal | 0.3 us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal | 0 us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax |  |  |  | (5.6)us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax | (0.8)us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax |  |  |  |  |  |
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax | 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | (380.1)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | (5.6)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | (0.8)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | (385.7)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | (0.8)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  | (0.2)us-gaap_GainLossOnSaleOfBusiness | 20.8 us-gaap_GainLossOnSaleOfBusiness | 0 us-gaap_GainLossOnSaleOfBusiness
Technical Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses |  |  |  |  |  |  |  |  |  | 30.1 us-gaap_ProceedsFromDivestitureOfBusinesses / us-gaap_StatementBusinessSegmentsAxis = pnr_TechnicalSolutionsMember |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  |  | 16.8 us-gaap_GainLossOnSaleOfBusiness / us-gaap_StatementBusinessSegmentsAxis = pnr_TechnicalSolutionsMember |
Goodwill, Written off Related to Sale of Business Unit |  |  |  |  |  |  |  |  |  | 5.3 us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_StatementBusinessSegmentsAxis = pnr_TechnicalSolutionsMember |
Flow Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses |  |  |  |  |  |  |  |  |  | 13.4 us-gaap_ProceedsFromDivestitureOfBusinesses / us-gaap_StatementBusinessSegmentsAxis = pnr_FlowTechnologiesMember |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  |  | 4.0 us-gaap_GainLossOnSaleOfBusiness / us-gaap_StatementBusinessSegmentsAxis = pnr_FlowTechnologiesMember |
Goodwill, Written off Related to Sale of Business Unit |  |  |  |  |  |  |  |  |  | $ 5.7 us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_StatementBusinessSegmentsAxis = pnr_FlowTechnologiesMember |

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- Definition Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition Amount after tax of loss recognized for the write-down to fair value, less cost to sell, of a disposal group. Includes after tax gain for a subsequent increase in fair value (less cost to sell) up to the cumulative loss previously recognized through write-downs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition Tax benefit from provision recognizing a loss for initial, or subsequent, write-down to fair value (less cost to sell) of a of a disposal group that is classified as a component of the entity, which remains unsold as of the reporting date. May include a tax on the (gain) for the recognition of a subsequent increase in fair value (less cost to sell), but not in excess of the cumulative loss previously recognized through write-downs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=18498875&loc=d3e38679-109324 + Details
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- Definition Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment. + References No definition available. + Details
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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