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Segment Information Reconciliation of Operating Profit (Loss) from Segments to Consolidated (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
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]                      
Segment Income (Loss)                 $ 1,021.7pnr_SegmentIncomeLoss $ 902.3pnr_SegmentIncomeLoss $ 483.5pnr_SegmentIncomeLoss
Payments for Merger Related Costs                     (82.8)us-gaap_PaymentsForMergerRelatedCosts
Inventory Step Up Related To Merger               (76.6)pnr_InventoryStepUpRelatedToMerger   (86.6)pnr_InventoryStepUpRelatedToMerger (157.7)pnr_InventoryStepUpRelatedToMerger
Restructuring costs                 88.3us-gaap_RestructuringCharges 103.2us-gaap_RestructuringCharges 48.7us-gaap_RestructuringCharges
Mark-to-market actuarial gains (losses) on pension and post-retirement benefit plans (49.9)us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations       (63.2)us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations       (49.9)us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations 63.2us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations (141.7)us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations
Impairment of Intangible Assets (Excluding Goodwill)         (11.0)us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill       0us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill (11.0)us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill (60.7)us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
Redomicile Expense                 (10.3)pnr_RedomicileExpense (5.4)pnr_RedomicileExpense  
Operating Income (Loss) 176.0us-gaap_OperatingIncomeLoss 267.4us-gaap_OperatingIncomeLoss 226.4us-gaap_OperatingIncomeLoss 182.1us-gaap_OperatingIncomeLoss 241.3us-gaap_OperatingIncomeLoss 230.0us-gaap_OperatingIncomeLoss 204.9us-gaap_OperatingIncomeLoss 66.4us-gaap_OperatingIncomeLoss 851.9us-gaap_OperatingIncomeLoss 742.6us-gaap_OperatingIncomeLoss (4.8)us-gaap_OperatingIncomeLoss
Segment Reconciling Items [Member]                      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]                      
Restructuring costs                 $ (109.6)us-gaap_RestructuringCharges
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_MaterialReconcilingItemsMember
$ (119.9)us-gaap_RestructuringCharges
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_MaterialReconcilingItemsMember
$ (45.4)us-gaap_RestructuringCharges
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_MaterialReconcilingItemsMember