Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Derivative Instrument, Contractual Life

+ References

No definition available.

+ Details

Name:	pnr_DerivativeInstrumentContractualLife
Namespace Prefix:	pnr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Notional Amount Of Derivatives, Terminations

+ References

No definition available.

+ Details

Name:	pnr_NotionalAmountOfDerivativesTerminations
Namespace Prefix:	pnr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Average fixed interest rate that will be received or paid upon exercise of a group of interest rate swaption contracts.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeAverageSwaptionInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

+ Details

Name:	us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

Name:	us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

+ Details

Name:	us-gaap_UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	pnr_DerivativeInstrumentDisclosureAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	pnr_DerivativeInstrumentDisclosureAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Derivatives and Financial Instruments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			1 Months Ended	12 Months Ended
	Mar. 28, 2015	Sep. 27, 2014	Mar. 29, 2014	Apr. 30, 2011	Dec. 31, 2014
Derivative [Line Items]
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax	$ 0	$ 380.1	$ 5.6
Discontinued Operation, Tax (Expense) Benefit from Provision for (Gain) Loss on Disposal	0	12.3	2.4
Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	226.8				250.8
Interest Rate Swap [Member]
Derivative [Line Items]
Average swap interest rate				3.65%
Cost of expiration (termination)				11.0
Derivative instrument contractual life				10 years
Unrealized loss	6.7				7.0
Derivative, Notional Amount				$ 400.0