Pentair (PNR) 10-Q 23 Jul 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	6 Months Ended
	Jun. 30, 2019shares
Cover page.
Entity Current Reporting Status	Yes
Security Exchange Name	NYSE
Entity Registrant Name	Pentair plc
Title of 12(b) Security	Ordinary Shares, nominal value $0.01 per share
Entity Incorporation, State or Country Code	L2
Document Transition Report	false
Document Quarterly Report	true
Entity Central Index Key	0000077360
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Document Type	10-Q
Entity File Number	001-11625
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Trading Symbol	PNR
Entity Common Stock, Shares Outstanding	168,049,131
Entity Tax Identification Number	98-1141328
City Area Code	74
Local Phone Number	9421-6154
Entity Interactive Data Current	Yes
Entity Shell Company	false
Country Region	44
Entity Address, Address Line One	Regal House, 70 London Road,
Entity Address, Address Line Two	Twickenham,
Entity Address, City or Town	London,
Entity Address, Country	GB
Entity Address, Postal Zip Code	TW13QS

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 799.5		$ 780.6		$ 1,488.4	$ 1,513.2
Cost of goods sold	512.8		498		966.1	977.3
Gross profit	286.7		282.6		522.3	535.9
Selling, general and administrative expenses	132.2		140.9		279.5	282.7
Research and development expenses	20.7		19.1		41.4	37.9
Operating income	133.8		122.6		201.4	215.3
Other (income) expense:
(Gain) loss on sale of business	0.1		0.9		(3.4)	6.2
Net interest expense	9.4		10.1		16.7	23.6
Other Income	(12.9)		(4.2)		(12.3)	(3.8)
Income from continuing operations before income taxes	137.2		98.7		200.4	172.2
Provision for income taxes	22.1		20.8		32.9	35.9
Net income from continuing operations	115.1		77.9		167.5	136.3
(Loss) income from discontinued operations, net of tax	(0.8)		(36.4)		(1.9)	8.1
Net income	114.3	$ 51.3	41.5	$ 102.9	165.6	144.4
Comprehensive income, net of tax
Net income	114.3	$ 51.3	41.5	$ 102.9	165.6	144.4
Changes in cumulative translation adjustment	(0.9)		22.8		(2.5)	25.2
Changes in market value of derivative financial instruments, net of tax	(3.4)		4.1		0.9	0.3
Comprehensive income	$ 110		$ 68.4		$ 164	$ 169.9
Earnings (loss) Per Share, Basic
Continuing operations (in dollars per share)	$ 0.68		$ 0.44		$ 0.98	$ 0.77
Discontinued operations (in dollars per share)	(0.01)		(0.21)		(0.01)	0.04
Basic earnings (loss) per ordinary share (in dollars per share)	0.67		0.23		0.97	0.81
Earnings (loss) Per Share, Diluted
Continuing operations (in dollars per share)	0.68		0.44		0.98	0.76
Discontinued operations (in dollars per share)	(0.01)		(0.21)		(0.01)	0.04
Diluted earnings (loss) per ordinary share (in dollars per share)	$ 0.67		$ 0.23		$ 0.97	$ 0.80
Weighted average ordinary shares outstanding
Basic (shares)	169.8		176.9		170.6	178.1
Diluted (shares)	170.5		178.6		171.4	179.9

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Operations and Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Changes in cumulative translation adjustment inclusive of divestiture of business reclassified to gain from sale	$ 0	$ 0	$ 0	$ 0

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 80.5	$ 74.3
Accounts and notes receivable, net of allowances of $13.7 and $14.0, respectively	459.6	488.2
Inventories	396.7	387.5
Other current assets	104.7	89.4
Total current assets	1,041.5	1,039.4
Property, plant and equipment, net	280.3	272.6
Other assets
Goodwill	2,287.5	2,072.7
Intangibles, net	354.2	276.3
Other non-current assets	206.5	145.5
Total other assets	2,848.2	2,494.5
Total assets	4,170	3,806.5
Current liabilities
Accounts payable	261.7	378.6
Employee compensation and benefits	68.7	111.7
Other current liabilities	379.8	328.4
Total current liabilities	710.2	818.7
Other liabilities
Long-term debt	1,215.1	787.6
Pension and other post-retirement compensation and benefits	89.2	90
Deferred tax liabilities	119.8	105.9
Other non-current liabilities	229.1	168.2
Total liabilities	2,363.4	1,970.4
Equity
Ordinary shares $0.01 par value, 426.0 authorized, 168.0 and 171.4 issued at June 30, 2019 and December 31, 2018, respectively	1.7	1.7
Additional paid-in capital	1,761.7	1,893.8
Retained earnings	273.4	169.2
Accumulated other comprehensive loss	(230.2)	(228.6)
Total equity	1,806.6	1,836.1
Total liabilities and equity	$ 4,170	$ 3,806.5

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Accounts and notes receivable, allowances	$ 13.7	$ 14
Ordinary shares, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	426,000,000	426,000,000
Common shares issued (in shares)	168,000,000	171,400,000

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating activities
Net income	$ 165.6	$ 144.4
Loss (income) from discontinued operations, net of tax	1.9	(8.1)
Adjustments to reconcile net income from continuing operations to net cash provided by (used for) operating activities of continuing operations
Equity income of unconsolidated subsidiaries	(2.5)	(5.8)
Depreciation	24.4	24.9
Amortization	16.5	18.4
Deferred income taxes	(9.6)	10.1
(Gain) loss on sale of business	(3.4)	6.2
Share-based compensation	10.7	11.3
Trade name and other impairment	18.2	6
Loss on early extinguishment of debt	0	(17.1)
Pension settlement gain	(12.2)	0
Pension and other post-retirement plan contribution	(10.7)	0
Changes in assets and liabilities, net of effects of business acquisitions
Accounts and notes receivable	32.2	52.7
Inventories	3.1	(15.4)
Other current assets	(18.8)	(10.8)
Accounts payable	(123.1)	(45.9)
Employee compensation and benefits	(22.5)	(32.2)
Other current liabilities	28.5	3.5
Other non-current assets and liabilities	0.9	1.4
Net cash provided by operating activities of continuing operations	99.2	177.8
Net cash used for operating activities of discontinued operations	(2.5)	(5.9)
Net cash provided by operating activities	96.7	171.9
Investing activities
Capital expenditures	(29.8)	(20.3)
Proceeds from sale of property and equipment	0.4	(0.5)
Proceeds from (payments due to) the sale of businesses, net	0.7	(12.8)
Acquisitions, net of cash acquired	(284.5)	(0.9)
Other	1.5	0
Net cash used for investing activities of continuing operations	(314.7)	(34.5)
Net cash used for investing activities of discontinued operations	0	(7.1)
Net cash used for investing activities	(314.7)	(41.6)
Financing activities
Net receipts of commercial paper and revolving long-term debt	32.9	30.2
Proceeds from long-term debt	400	0
Repayments of long-term debt	0	675.1
Debt issuance costs	5.7	0
Premium paid on early extinguishment of debt	0	16
Transfer of cash to nVent	0	74.2
Distribution of cash from nVent	0	993.6
Shares issued to employees, net of shares withheld	7.2	6.3
Repurchases of ordinary shares	(150)	(300)
Dividends paid	(62)	(125.9)
Net cash provided by financing activities of continuing operations	222.4	(161.1)
Change in cash held for sale	0	27
Effect of exchange rate changes on cash and cash equivalents	1.8	(3.8)
Change in cash and cash equivalents	6.2	(7.6)
Cash and cash equivalents, beginning of period	74.3	86.3
Cash and cash equivalents, end of period	$ 80.5	$ 78.7

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Equity - USD ($) shares in Millions, $ in Millions	Total	Ordinary shares	Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss
Common Stock, Dividends, Per Share, Cash Paid	$ 0.35
Beginning Balance at Dec. 31, 2017	$ 5,037.8	$ 1.8	$ 2,797.7	$ 2,481.7	$ (243.4)
Beginning Balance (in shares) at Dec. 31, 2017		180.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	102.9			102.9
Other comprehensive income, net of tax	(1.4)				(1.4)
Dividends declared, $0.18 per share	(62.6)			(62.6)
Share repurchase	(150)		(150)
Share repurchase (in shares)		(2.2)
Exercise of options, net of shares tendered for payment	5.8		5.8
Exercise of options, net of shares tendered for payment (in shares)		0.1
Issuance of restricted shares, net of cancellations (in shares)		0.3
Issuance of restricted shares, net of cancellations	0
Shares surrendered by employees to pay taxes	4.8		4.8
Shares surrendered by employees to pay taxes (in shares)		0.1
Share-based compensation	6		6
Ending Balance (in shares) at Mar. 31, 2018		178.4
Ending Balance at Mar. 31, 2018	4,719.7	$ 1.8	2,654.7	2,308	(244.8)
Beginning Balance at Dec. 31, 2017	5,037.8	$ 1.8	2,797.7	2,481.7	(243.4)
Beginning Balance (in shares) at Dec. 31, 2017		180.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	144.4
Ending Balance (in shares) at Jun. 30, 2018		175.4
Ending Balance at Jun. 30, 2018	$ 1,888.9	$ 1.8	2,077.1	27.9	(217.9)
Common Stock, Dividends, Per Share, Cash Paid	$ 0.175
Beginning Balance at Mar. 31, 2018	$ 4,719.7	$ 1.8	2,654.7	2,308	(244.8)
Beginning Balance (in shares) at Mar. 31, 2018		178.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	41.5			41.5
Other comprehensive income, net of tax	74.8				74.8
Dividends declared, $0.18 per share	(30.9)			(30.9)
Share repurchase	(150)		(150)
Share repurchase (in shares)		(3.3)
Exercise of options, net of shares tendered for payment	6.3		6.3
Exercise of options, net of shares tendered for payment (in shares)		0.3
Issuance of restricted shares, net of cancellations (in shares)		(0.1)
Issuance of restricted shares, net of cancellations	0	$ 0
Shares surrendered by employees to pay taxes	1		1
Shares surrendered by employees to pay taxes (in shares)		(0.1)
Distribution to nVent	(2,776.8)		(438.2)	(2,290.7)	(47.9)
Share-based compensation	5.3		5.3
Ending Balance (in shares) at Jun. 30, 2018		175.4
Ending Balance at Jun. 30, 2018	$ 1,888.9	$ 1.8	2,077.1	27.9	(217.9)
Common Stock, Dividends, Per Share, Cash Paid	$ 0.18
Beginning Balance at Dec. 31, 2018	$ 1,836.1	$ 1.7	1,893.8	169.2	(228.6)
Beginning Balance (in shares) at Dec. 31, 2018		171.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	51.3			51.3
Other comprehensive income, net of tax	2.7				2.7
Dividends declared, $0.18 per share	(31)			(31)
Exercise of options, net of shares tendered for payment	9.1		9.1
Exercise of options, net of shares tendered for payment (in shares)		0.3
Issuance of restricted shares, net of cancellations (in shares)		0.2
Issuance of restricted shares, net of cancellations	0	$ 0
Shares surrendered by employees to pay taxes	(3.2)		(3.2)
Shares surrendered by employees to pay taxes (in shares)		0
Share-based compensation	5.4		5.4
Ending Balance (in shares) at Mar. 31, 2019		171.9
Ending Balance at Mar. 31, 2019	1,870.4	$ 1.7	1,905.1	189.5	(225.9)
Beginning Balance at Dec. 31, 2018	1,836.1	$ 1.7	1,893.8	169.2	(228.6)
Beginning Balance (in shares) at Dec. 31, 2018		171.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	165.6
Ending Balance (in shares) at Jun. 30, 2019		168
Ending Balance at Jun. 30, 2019	$ 1,806.6	$ 1.7	1,761.7	273.4	(230.2)
Common Stock, Dividends, Per Share, Cash Paid	$ 0.18
Beginning Balance at Mar. 31, 2019	$ 1,870.4	$ 1.7	1,905.1	189.5	(225.9)
Beginning Balance (in shares) at Mar. 31, 2019		171.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	114.3			114.3
Other comprehensive income, net of tax	(4.3)				(4.3)
Dividends declared, $0.18 per share	(30.4)			(30.4)
Share repurchase	(150)		(150)
Share repurchase (in shares)		(4)
Exercise of options, net of shares tendered for payment	2.2		2.2
Exercise of options, net of shares tendered for payment (in shares)		0.1
Issuance of restricted shares, net of cancellations (in shares)		0.1
Issuance of restricted shares, net of cancellations	0	$ 0
Shares surrendered by employees to pay taxes	(0.9)		(0.9)
Shares surrendered by employees to pay taxes (in shares)		(0.1)
Share-based compensation	5.3		5.3
Ending Balance (in shares) at Jun. 30, 2019		168
Ending Balance at Jun. 30, 2019	$ 1,806.6	$ 1.7	$ 1,761.7	$ 273.4	$ (230.2)

Basis of Presentation and Respo

Basis of Presentation and Responsibility for Interim Financial Statements	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation and Responsibility for Interim Financial Statements	Basis of Presentation and Responsibility for Interim Financial Statements The accompanying unaudited condensed consolidated financial statements of Pentair plc and its subsidiaries (“we,” “us,” “our,” “Pentair,” or the “Company”) have been prepared following the requirements of the U.S. Securities and Exchange Commission (“SEC”) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America (“GAAP”) can be condensed or omitted. We are responsible for the unaudited condensed consolidated financial statements included in this document. The financial statements include all normal recurring adjustments that are considered necessary for the fair presentation of our financial position and operating results. As these are condensed financial statements, one should also read our consolidated financial statements and notes thereto, which are included in our Annual Report on Form 10-K for the year ended December 31, 2018 . Revenues, expenses, cash flows, assets and liabilities can and do vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be indicative of those for a full year. Our fiscal year ends on December 31. We report our interim quarterly periods on a calendar quarter basis. Adoption of new accounting standards On January 1, 2019, we adopted ASU No. 2016-02, “Leases” (“the new lease standard” or “ASC 842”) using the transition method of adoption. Under the transition method of adoption, comparative information has not been restated and continues to be reported under the standards in effect for those periods. In addition, we elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allowed us to carry forward the historical lease classification. We also elected the practical expedient to not separate non-lease components from the lease components to which they relate, and instead account for each separate lease and non-lease component associated with that lease component as a single lease component for all underlying asset classes. Accordingly, all costs associated with a lease contract are accounted for as one lease cost. The impact of adopting the new standard primarily relates to the recognition of a lease right-of-use (“ROU”) asset and current and non-current lease liability on the consolidated balance sheet. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As we cannot readily determine the rate implicit in the lease, we use our incremental borrowing rate determined by country of lease origin based on the anticipated lease term as determined at commencement date in determining the present value of lease payments. The ROU asset also excludes any accrued lease payments and unamortized lease incentives. As of June 30, 2019 , $78.7 million was included in Other non-current assets , $19.8 million in Other current liabilities and $62.1 million in Other non-current liabilities , on the Condensed Consolidated Balance Sheets as a result of the new lease standard. There was no impact on our Condensed Consolidated Statements of Operations and Comprehensive Income or Condensed Consolidated Statements of Cash Flows. Refer to Note 15 for further discussion.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue	Revenue We disaggregate our revenue from contracts with customers by segment, geographic location and vertical, as we believe these best depict how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. Refer to Note 14 for revenue disaggregated by segment. Geographic net sales information, based on geographic destination of the sale, was as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, U.S. $ 511.1 $ 504.2 $ 937.1 $ 956.6 Western Europe 106.9 103.8 211.2 214.1 Developing (1) 129.0 115.4 237.9 228.4 Other Developed (2) 52.5 57.2 102.2 114.1 Consolidated net sales $ 799.5 $ 780.6 $ 1,488.4 $ 1,513.2 (1) Developing includes China, Eastern Europe, Latin America, the Middle East and Southeast Asia. (2) Other Developed includes Australia, Canada and Japan. Vertical net sales information was as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Residential $ 451.0 $ 437.5 $ 834.6 $ 849.7 Commercial 170.7 167.8 321.4 319.6 Industrial 177.8 175.3 332.4 343.9 Consolidated net sales $ 799.5 $ 780.6 $ 1,488.4 $ 1,513.2 Performance obligations On June 30, 2019 , we had $59.8 million of remaining performance obligations on contracts with an original expected duration of one year or more. We expect to recognize the majority of our remaining performance obligations on these contracts within the next 12 to 18 months . Contract assets and liabilities Contract assets and liabilities consisted of the following: In millions June 30, December 31, $ Change % Change Contract assets $ 43.5 $ 36.5 $ 7.0 19.2 % Contract liabilities 32.1 32.8 (0.7 ) (2.1 )% Net contract assets $ 11.4 $ 3.7 $ 7.7 208.1 % The $7.7 million increase in net contract assets from December 31, 2018 to June 30, 2019 was primarily the result of timing of milestone payments. Approximately 70% of our contract liabilities at December 31, 2018 were recognized in revenue in the first half of 2019 . There were no impairment losses recognized on our contract assets for the three months or six months ended June 30, 2019 .

Acquisitions and Discontinued O

Acquisitions and Discontinued Operations	6 Months Ended
	Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Acquisitions and Discontinued Operations	Acquisitions and Discontinued Operations Acquisitions In February 2019, as part of Filtration Solutions, we completed the acquisitions of Aquion, Inc. (“Aquion”) and Pelican Water Systems (“Pelican”) for $163.4 million and $121.1 million , respectively, in cash, net of cash acquired. For Aquion, the excess of purchase price over tangible net assets and identified intangible assets acquired has been preliminarily allocated to goodwill in the amount of $93.9 million , $4.6 million of which is expected to be deductible for income tax purposes. Identifiable intangible assets acquired as part of the Aquion acquisition include $15.7 million of indefinite-lived trade name intangible assets and $78.8 million of definite-lived customer relationships with an estimated useful life of 15 years . For Pelican, the excess purchase price over tangible net assets acquired has been preliminarily allocated to goodwill in the amount of $121.0 million , $7.6 million of which is expected to be deductible for income tax purposes. The preliminary purchase price allocation for these acquisitions is subject to further refinement and may require significant adjustments to arrive at the final purchase price allocation. These changes will primarily relate to impacts associated with income taxes and other accruals. The proforma impact of these acquisitions is not material. Discontinued Operation — Electrical Separation On April 30, 2018, we completed the separation of our Electrical business from the rest of Pentair (the “Separation”) by means of a dividend in specie of the Electrical business, which was effected by the transfer of the Electrical business from Pentair to nVent Electric plc (“nVent”) and the issuance by nVent of ordinary shares directly to Pentair shareholders (the “Distribution”). The results of the Electrical business have been presented as discontinued operations. The Electrical business had been previously disclosed as a stand-alone reporting segment. Separation costs related to the Separation and Distribution were $55.3 million and $79.9 million for the three and six months ended June 30, 2018 , respectively. These costs are reported in discontinued operations as they represent a cost directly related to the Separation and Distribution and are included within (Loss) income from discontinued operations, net of tax presented below. Operating results of the discontinued operation is summarized below: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Net sales $ — $ 155.0 $ — $ 693.9 Cost of goods sold — 93.8 — 424.0 Gross profit — 61.2 — 269.9 Selling, general and administrative expenses 0.5 93.1 0.8 231.0 Research and development expenses — 3.4 — 14.6 Operating (loss) income $ (0.5 ) $ (35.3 ) $ (0.8 ) $ 24.3 (Loss) income from discontinued operations before income taxes $ (0.4 ) $ (37.9 ) $ (1.2 ) $ 19.8 Income tax provision (benefit) 0.4 (1.5 ) 0.7 11.7 (Loss) income from discontinued operations, net of tax $ (0.8 ) $ (36.4 ) $ (1.9 ) $ 8.1

Share Plans

Share Plans	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Share Plans	Share Plans Total share-based compensation expense for the three and six months ended June 30, 2019 and 2018 was as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Restricted stock units $ 2.9 $ 1.9 $ 5.7 $ 4.3 Stock options 1.1 1.0 2.5 2.2 Performance share units 1.3 2.4 2.5 4.8 Total share-based compensation expense $ 5.3 $ 5.3 $ 10.7 $ 11.3 Of the total share-based compensation expense noted above, $1.3 million and $3.4 million were reported as part of (Loss) income from discontinued operations, net of tax for the three and six months ended June 30, 2018 , respectively. In the first quarter of 2019, we issued our annual share-based compensation grants under the Pentair plc 2012 Stock and Incentive Plan to eligible employees. The total number of awards issued was approximately 0.8 million , of which 0.3 million were restricted stock units (“RSUs”), 0.4 million were stock options and 0.1 million were performance share units (“PSUs”). The weighted-average grant date fair value of the RSUs, stock options and PSUs issued was $40.84 , $8.84 , and $38.47 , respectively. We estimated the fair value of each stock option award issued in the annual share-based compensation grant using a Black-Scholes option pricing model, modified for dividends and using the following assumptions: 2019 Annual Grant Risk-free interest rate 2.89 % Expected dividend yield 1.78 % Expected share price volatility 23.3 % Expected term (years) 6.1 These estimates require us to make assumptions based on historical results, observance of trends in our share price, changes in option exercise behavior, future expectations and other relevant factors. If other assumptions had been used, share-based compensation expense, as calculated and recorded under the accounting guidance, could have been affected. We based the expected life assumption on historical experience as well as the terms and vesting periods of the options granted. For purposes of determining expected share price volatility, we considered a rolling average of historical volatility measured over a period approximately equal to the expected option term. The risk-free interest rate for periods that coincide with the expected life of the options is based on the U.S. Treasury Department yield curve in effect at the time of grant.
Share-based Compensation Expense	Total share-based compensation expense for the three and six months ended June 30, 2019 and 2018 was as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Restricted stock units $ 2.9 $ 1.9 $ 5.7 $ 4.3 Stock options 1.1 1.0 2.5 2.2 Performance share units 1.3 2.4 2.5 4.8 Total share-based compensation expense $ 5.3 $ 5.3 $ 10.7 $ 11.3

Restructuring

Restructuring	6 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring During the six months ended June 30, 2019 and the year ended December 31, 2018 , we initiated and continued execution of certain business restructuring initiatives aimed at reducing our fixed cost structure and realigning our business. These initiatives included the reduction in hourly and salaried headcount of approximately 300 employees during both the six months ended June 30, 2019 and the year ended December 31, 2018 . Restructuring-related costs included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations and Comprehensive Income included costs for severance and other restructuring costs as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Severance and related costs $ 6.4 $ 4.6 $ 7.5 $ 10.0 Other 0.3 20.4 0.3 20.6 Total restructuring costs $ 6.7 $ 25.0 $ 7.8 $ 30.6 Other restructuring costs primarily consist of asset impairment and various contract termination costs. Restructuring costs by reportable segment were as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Aquatic Systems $ 2.0 $ 1.2 $ 2.9 $ 3.0 Filtration Solutions 1.2 11.5 1.6 13.5 Flow Technologies 2.4 6.3 2.1 8.0 Other 1.1 6.0 1.2 6.1 Consolidated $ 6.7 $ 25.0 $ 7.8 $ 30.6 Activity related to accrued severance and related costs recorded in Other current liabilities in the Condensed Consolidated Balance Sheets is summarized as follows for the six months ended June 30, 2019 : In millions June 30, Beginning balance $ 27.1 Costs incurred 7.5 Cash payments and other (14.3 ) Ending balance $ 20.3

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic and diluted earnings per share were calculated as follows: Three months ended Six months ended In millions, except per-share data June 30, June 30, June 30, June 30, Net income $ 114.3 $ 41.5 $ 165.6 $ 144.4 Net income from continuing operations $ 115.1 $ 77.9 $ 167.5 $ 136.3 Weighted average ordinary shares outstanding Basic 169.8 176.9 170.6 178.1 Dilutive impact of stock options, restricted stock units and performance share units 0.7 1.7 0.8 1.8 Diluted 170.5 178.6 171.4 179.9 Earnings (loss) per ordinary share Basic Continuing operations $ 0.68 $ 0.44 $ 0.98 $ 0.77 Discontinued operations (0.01 ) (0.21 ) (0.01 ) 0.04 Basic earnings per ordinary share $ 0.67 $ 0.23 $ 0.97 $ 0.81 Diluted Continuing operations $ 0.68 $ 0.44 $ 0.98 $ 0.76 Discontinued operations (0.01 ) (0.21 ) (0.01 ) 0.04 Diluted earnings per ordinary share $ 0.67 $ 0.23 $ 0.97 $ 0.80 Anti-dilutive stock options excluded from the calculation of diluted earnings per share 2.3 0.7 1.9 0.5

Supplemental Balance Sheet Info

Supplemental Balance Sheet Information	6 Months Ended
	Jun. 30, 2019
Disclosure Supplemental Balance Sheet Information [Abstract]
Supplemental Balance Sheet Information	Supplemental Balance Sheet Information In millions June 30, December 31, Inventories Raw materials and supplies $ 206.9 $ 191.3 Work-in-process 66.3 64.0 Finished goods 123.5 132.2 Total inventories $ 396.7 $ 387.5 Other current assets Cost in excess of billings $ 43.5 $ 36.5 Prepaid expenses 45.2 36.7 Prepaid income taxes 8.0 8.5 Other current assets 8.0 7.7 Total other current assets $ 104.7 $ 89.4 Property, plant and equipment, net Land and land improvements $ 33.7 $ 33.5 Buildings and leasehold improvements 182.4 178.9 Machinery and equipment 608.9 593.8 Construction in progress 44.6 35.7 Total property, plant and equipment 869.6 841.9 Accumulated depreciation and amortization 589.3 569.3 Total property, plant and equipment, net $ 280.3 $ 272.6 Other non-current assets Right-of-use lease assets $ 78.7 $ — Deferred income taxes 26.3 26.2 Deferred compensation plan assets 20.4 20.9 Other non-current assets 81.1 98.4 Total other non-current assets $ 206.5 $ 145.5 Other current liabilities Dividends payable $ 30.2 $ 30.8 Accrued warranty 34.2 33.9 Accrued rebates 57.3 55.7 Billings in excess of cost 19.9 21.3 Current lease liability 19.8 — Income taxes payable 24.2 10.4 Accrued restructuring 20.3 27.1 Other current liabilities 173.9 149.2 Total other current liabilities $ 379.8 $ 328.4 Other non-current liabilities Long-term lease liability $ 62.1 $ — Income taxes payable 46.3 46.8 Self-insurance liabilities 44.0 47.7 Deferred compensation plan liabilities 20.4 20.9 Foreign currency contract liabilities 30.8 30.6 Other non-current liabilities 25.5 22.2 Total other non-current liabilities $ 229.1 $ 168.2

Goodwill and Other Identifiable

Goodwill and Other Identifiable Intangible Assets	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Identifiable Intangible Assets	Goodwill and Other Identifiable Intangible Assets The changes in the carrying amount of goodwill by reportable segment were as follows: In millions December 31, Acquisitions Foreign currency translation/other June 30, Aquatic Systems $ 965.9 $ — $ (1.1 ) $ 964.8 Filtration Solutions 643.5 214.9 1.1 859.5 Flow Technologies 463.3 — (0.1 ) 463.2 Total goodwill $ 2,072.7 $ 214.9 $ (0.1 ) $ 2,287.5 Identifiable intangible assets consisted of the following: June 30, December 31, In millions Cost Accumulated amortization Net Cost Accumulated amortization Net Definite-life intangibles Customer relationships $ 422.6 $ (258.3 ) $ 164.3 $ 347.1 $ (247.9 ) $ 99.2 Trade names — — — 0.4 (0.4 ) — Proprietary technology and patents 49.6 (34.8 ) 14.8 86.2 (68.4 ) 17.8 Total definite-life intangibles 472.2 (293.1 ) 179.1 433.7 (316.7 ) 117.0 Indefinite-life intangibles Trade names 175.1 — 175.1 159.3 — 159.3 Total intangibles $ 647.3 $ (293.1 ) $ 354.2 $ 593.0 $ (316.7 ) $ 276.3 Identifiable intangible asset amortization expense was $8.3 million and $9.1 million for the three months ended June 30, 2019 and 2018 , respectively, and $16.5 million and $18.4 million for the six months ended June 30, 2019 and 2018 , respectively. Estimated future amortization expense for identifiable intangible assets during the remainder of 2019 and the next five years is as follows: Q3-Q4 In millions 2019 2020 2021 2022 2023 2024 Estimated amortization expense $ 16.0 $ 27.6 $ 22.5 $ 15.3 $ 13.0 $ 12.4

Debt

Debt	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt	Debt Debt and the average interest rates on debt outstanding were as follows: In millions Average interest rate as of June 30, 2019 Maturity Year June 30, December 31, Commercial paper 2.943% 2023 $ 130.9 $ 76.0 Revolving credit facilities 3.498% 2023 4.1 26.2 Senior notes - fixed rate (1) 2.650% 2019 250.0 250.0 Senior notes - fixed rate - Euro (1) 2.450% 2019 155.3 155.1 Senior notes - fixed rate (1) 3.625% 2020 74.0 74.0 Senior notes - fixed rate (1) 5.000% 2021 103.8 103.8 Senior notes - fixed rate (1) 3.150% 2022 88.3 88.3 Senior notes - fixed rate (1) 4.650% 2025 19.3 19.3 Senior notes - fixed rate (1) 4.500% 2029 400.0 — Unamortized debt issuance costs and discounts N/A N/A (10.6 ) (5.1 ) Total debt $ 1,215.1 $ 787.6 (1) Senior notes are guaranteed as to payment by Pentair and PISG. In June 2019, Pentair, Pentair Finance S.à r.l. (“PFSA”) and Pentair Investments Switzerland GmbH (“PISG”) completed a public offering of $400.0 million aggregate principal amount of PFSA’s 4.500% Senior Notes due 2029 (the “2029 Notes”). The 2029 Notes are fully and unconditionally guaranteed as to payment of principal and interest by Pentair and PISG. We used the net proceeds of the 2029 Notes to partially repay outstanding commercial paper. In April 2018, Pentair, PISG, PFSA and Pentair, Inc. entered into a credit agreement, providing for an $800.0 million senior unsecured revolving credit facility with a term of five years (the “Senior Credit Facility”), with Pentair and PISG as guarantors and PFSA and Pentair, Inc. as borrowers. The Senior Credit Facility replaced PFSA’s existing credit facility under that certain Amended and Restated Credit Agreement, dated as of October 3, 2014. The Senior Credit Facility has a maturity date of April 25, 2023. Borrowings under the Senior Credit Facility bear interest at a rate equal to an adjusted base rate or the London Interbank Offered Rate, plus, in each case, an applicable margin. The applicable margin is based on, at PFSA’s election, Pentair’s leverage level or PFSA’s public credit rating. PFSA has the option to request an increase to the Senior Credit Facility up to $1,100.0 million in the aggregate, subject to customary conditions, including the commitment of participating lenders. In May 2019, PFSA executed an increase of the Senior Credit Facility by $100.0 million for a total commitment up to $900.0 million in the aggregate. As of June 30, 2019 , total availability under the Senior Credit Facility was $765.0 million . PFSA is authorized to sell short-term commercial paper notes to the extent availability exists under the Senior Credit Facility. PFSA uses the Senior Credit Facility as back-up liquidity to support 100% of commercial paper outstanding. PFSA had $130.9 million of commercial paper outstanding as of June 30, 2019 and $76.0 million as of December 31, 2018 , all of which was classified as long-term debt as we have the intent and the ability to refinance such obligations on a long-term basis under the Senior Credit Facility. Our debt agreements contain various financial covenants, but the most restrictive covenants are contained in the Senior Credit Facility. The Senior Credit Facility contains covenants requiring us not to permit (i) the ratio of our consolidated debt (net of our consolidated unrestricted cash in excess of $5.0 million but not to exceed $250.0 million ) to our consolidated net income (excluding, among other things, non-cash gains and losses) before interest, taxes, depreciation, amortization and non-cash share-based compensation expense (“EBITDA”) on the last day of any period of four consecutive fiscal quarters to exceed 3.75 to 1.00 (the “Leverage Ratio”) and (ii) the ratio of our EBITDA to our consolidated interest expense, for the same period to be less than 3.00 to 1.00 as of the end of each fiscal quarter. For purposes of the Leverage Ratio, the Senior Credit Facility provides for the calculation of EBITDA giving pro forma effect to certain acquisitions, divestitures and liquidations during the period to which such calculation relates. In addition to the Senior Credit Facility, we have various other credit facilities with an aggregate availability of $21.1 million , of which there were no outstanding borrowings at June 30, 2019 . Borrowings under these credit facilities bear interest at variable rates. We have $405.3 million aggregate principal amount of fixed rate senior notes maturing in the next twelve months. We classified this debt as long-term as of June 30, 2019 as we have the intent and ability to refinance such obligation on a long-term basis under the Senior Credit Facility. Debt outstanding, excluding unamortized issuance costs and discounts, at June 30, 2019 matures on a calendar year basis as follows: Q3-Q4 In millions 2019 2020 2021 2022 2023 2024 Thereafter Total Contractual debt obligation maturities $ 405.3 $ 74.0 $ 103.8 $ 88.3 $ 135.0 $ — $ 419.3 $ 1,225.7

Derivatives and Financial Instr

Derivatives and Financial Instruments	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Financial Instruments	Derivatives and Financial Instruments Derivative financial instruments We are exposed to market risk related to changes in foreign currency exchange rates. To manage the volatility related to this exposure, we periodically enter into a variety of derivative financial instruments. Our objective is to reduce, where it is deemed appropriate to do so, fluctuations in earnings and cash flows associated with changes in foreign currency exchange rates. The derivative contracts contain credit risk to the extent that our bank counterparties may be unable to meet the terms of the agreements. The amount of such credit risk is generally limited to the unrealized gains, if any, in such contracts. Such risk is minimized by limiting those counterparties to major financial institutions of high credit quality. Foreign currency contracts We conduct business in various locations throughout the world and are subject to market risk due to changes in the value of foreign currencies in relation to our reporting currency, the U.S. dollar. We manage our economic and transaction exposure to certain market-based risks through the use of foreign currency derivative financial instruments. Our objective in holding these derivatives is to reduce the volatility of net earnings and cash flows associated with changes in foreign currency exchange rates. The majority of our foreign currency contracts have an original maturity date of less than one year. At June 30, 2019 and December 31, 2018 , we had outstanding foreign currency derivative contracts with gross notional U.S. dollar equivalent amounts of $53.7 million and $47.6 million , respectively. The impact of these contracts on the Condensed Consolidated Statements of Operations and Comprehensive Income was not material for any period presented. Cross Currency Swaps At June 30, 2019 and December 31, 2018 , we had outstanding cross currency swap agreements with a combined notional amount of $625.3 million and $283.8 million , respectively. The agreements are accounted for as either cash flow hedges, to hedge foreign currency fluctuations on certain intercompany debt, or as net investment hedges to manage our exposure to fluctuations in the Euro-U.S. Dollar exchange rate. As of June 30, 2019 and December 31, 2018 , we had deferred foreign currency losses of $13.9 million and $14.5 million , respectively, in Accumulated other comprehensive loss associated with our cross currency swap activity. Foreign Currency Denominated Debt In September 2015, we designated the €500 million 2.45% Senior Notes due 2019 (the “2019 Euro Notes”) as a net investment hedge for a portion of our net investment in our Euro-denominated subsidiaries. In June 2018, the Company completed a tender offer for €363.4 million of the 2019 Euro Notes. The remaining €136.6 million of the 2019 Euro Notes have been re-designated as a net investment hedge in our Euro-denominated subsidiaries. The gains/losses on the 2019 Euro Notes have been included as a component of the cumulative translation adjustment account within Accumulated other comprehensive loss . As of June 30, 2019 and December 31, 2018 , we had deferred foreign currency losses of $1.0 million and $0.8 million , respectively, in Accumulated other comprehensive loss associated with the net investment hedge activity. Fair value measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date: Level 1: Valuation is based on observable inputs such as quoted market prices (unadjusted) for identical assets or liabilities in active markets. Level 2: Valuation is based on inputs such as quoted market prices for similar assets or liabilities in active markets or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. Level 3: Valuation is based upon other unobservable inputs that are significant to the fair value measurement. In making fair value measurements, observable market data must be used when available. When inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement. Fair value of financial instruments The following methods were used to estimate the fair values of each class of financial instruments: • short-term financial instruments (cash and cash equivalents, accounts and notes receivable, accounts and notes payable and variable-rate debt) — recorded amount approximates fair value because of the short maturity period; • long-term fixed-rate debt, including current maturities — fair value is based on market quotes available for issuance of debt with similar terms, which are inputs that are classified as Level 2 in the valuation hierarchy defined by the accounting guidance; • foreign currency contract agreements — fair values are determined through the use of models that consider various assumptions, including time value, yield curves, as well as other relevant economic measures, which are inputs that are classified as Level 2 in the valuation hierarchy defined by the accounting guidance; and • deferred compensation plan assets (mutual funds, common/collective trusts and cash equivalents for payment of certain non-qualified benefits for retired, terminated and active employees) — fair value of mutual funds and cash equivalents are based on quoted market prices in active markets that are classified as Level 1 in the valuation hierarchy defined by the accounting guidance; fair value of common/collective trusts are valued at net asset value (“NAV”), which is based on the fair value of the underlying securities owned by the fund and divided by the number of shares outstanding. The recorded amounts and estimated fair values of total debt, excluding unamortized issuance costs and discounts, were as follows: June 30, December 31, In millions Recorded Amount Fair Value Recorded Amount Fair Value Variable rate debt $ 135.0 $ 135.0 $ 102.2 $ 102.2 Fixed rate debt 1,090.7 1,121.7 690.5 691.8 Total debt $ 1,225.7 $ 1,256.7 $ 792.7 $ 794.0 Financial assets and liabilities measured at fair value on a recurring basis were as follows: June 30, 2019 In millions Level 1 Level 2 Level 3 NAV Total Recurring fair value measurements Foreign currency contract liabilities $ — $ (30.8 ) $ — $ — $ (30.8 ) Deferred compensation plan assets 12.2 — — 8.2 20.4 Total recurring fair value measurements $ 12.2 $ (30.8 ) $ — $ 8.2 $ (10.4 ) December 31, 2018 In millions Level 1 Level 2 Level 3 NAV Total Recurring fair value measurements Foreign currency contract liabilities $ — $ (30.6 ) $ — $ — $ (30.6 ) Deferred compensation plan assets 17.6 — — 3.3 20.9 Total recurring fair value measurements $ 17.6 $ (30.6 ) $ — $ 3.3 $ (9.7 )

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We manage our affairs so that we are centrally managed and controlled in the United Kingdom (“U.K.”) and therefore have our tax residency in the U.K. The provision for income taxes consists of provisions for the U.K. and international income taxes. We operate in an international environment with operations in various locations outside the U.K. Accordingly, the consolidated income tax rate is a composite rate reflecting the earnings in the various locations and the applicable rates. The effective income tax rate for the six months ended June 30, 2019 was 16.4% , compared to 20.8% for the six months ended June 30, 2018 . We continue to actively pursue initiatives to reduce our effective tax rate. The tax rate in any quarter can be affected positively or negatively by adjustments that are required to be reported in the specific quarter of resolution. The liability for uncertain tax positions was $48.9 million and $51.4 million at June 30, 2019 and December 31, 2018 , respectively. We record penalties and interest related to unrecognized tax benefits in Provision for income taxes and Net interest expense , respectively, on the Condensed Consolidated Statements of Operations and Comprehensive Income, which is consistent with our past practices.

Benefit Plans

Benefit Plans	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Benefit Plans	Benefit Plans Components of net periodic benefit cost for our pension plans for the three and six months ended June 30, 2019 and 2018 were as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Service cost $ 0.7 $ 1.0 $ 1.4 $ 2.1 Interest cost 2.7 3.0 5.4 6.0 Expected return on plan assets (1.7 ) (2.2 ) (3.4 ) (4.5 ) Plan settlement gain (12.2 ) — (12.2 ) — Net periodic benefit (income) expense $ (10.5 ) $ 1.8 $ (8.8 ) $ 3.6 Components of net periodic benefit (income) expense for our other post-retirement plans for the three and six months ended June 30, 2019 and 2018 were not material. During the three months ended June 30, 2019, we received all required government approvals to terminate the Pentair Salaried Plan (the “Salaried Plan”). In June 2019, we entered into an agreement with an insurance company to purchase from us, through an annuity contract, our remaining obligations under the Salaried Plan. We contributed $10.7 million to the Salaried Plan as part of the process to settle our obligations. As a result of these actions, a non-cash pre-tax settlement gain of $12.2 million was recorded for the three and six months ended June 30, 2019 and is reflected within Plan settlement gain in the table above.

Shareholders' Equity

Shareholders' Equity	6 Months Ended
	Jun. 30, 2019
Shareholders' Equity	Shareholders’ Equity Share repurchases In May 2018, the Board of Directors authorized the repurchase of our ordinary shares up to a maximum dollar limit of $750.0 million . The authorization expires on May 31, 2021 . During the six months ended June 30, 2019 , we repurchased 4.0 million of our shares for $150.0 million . As of June 30, 2019 , we had $250.0 million available for share repurchases under this authorization. Dividends payable On May 6, 2019 , the Board of Directors declared a quarterly cash dividend of $0.18 , payable on August 2, 2019 to shareholders of record at the close of business on July 19, 2019. As a result, the balance of dividends payable included in Other current liabilities on our Condensed Consolidated Balance Sheets was $30.2 million at June 30, 2019 , compared to $30.8 million at December 31, 2018

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Information	Segment Information We evaluate performance based on net sales and segment income (loss) and use a variety of ratios to measure performance of our reporting segments. These results are not necessarily indicative of the results of operations that would have occurred had each segment been an independent, stand-alone entity during the periods presented. Segment income (loss) represents equity income of unconsolidated subsidiaries and operating income exclusive of intangible amortization, certain acquisition related expenses, costs of restructuring activities, impairments and other unusual non-operating items. Financial information by reportable segment is as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Net sales Aquatic Systems $ 270.6 $ 276.2 $ 491.1 $ 516.6 Filtration Solutions 285.6 262.1 524.9 513.7 Flow Technologies 243.0 241.9 471.7 482.2 Other 0.3 0.4 0.7 0.7 Consolidated $ 799.5 $ 780.6 $ 1,488.4 $ 1,513.2 Segment income (loss) Aquatic Systems $ 76.8 $ 79.6 $ 129.2 $ 139.6 Filtration Solutions 50.0 52.3 83.7 86.0 Flow Technologies 41.9 44.4 72.0 83.1 Other (14.6 ) (12.2 ) (32.1 ) (27.6 ) Consolidated $ 154.1 $ 164.1 $ 252.8 $ 281.1 The following table presents a reconciliation of consolidated segment income to consolidated income from continuing operations before income taxes: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Segment income $ 154.1 $ 164.1 $ 252.8 $ 281.1 Deal-related costs and expenses — — (4.2 ) — Inventory step-up (0.5 ) — (2.2 ) — Restructuring and other (6.7 ) (19.0 ) (7.8 ) (24.6 ) Intangible amortization (8.3 ) (9.1 ) (16.5 ) (18.4 ) Pension settlement gain 12.2 — 12.2 — Asset impairment (2.9 ) (6.0 ) (18.2 ) (6.0 ) (Loss) gain on sale of business (0.1 ) (0.9 ) 3.4 (6.2 ) Loss on early extinguishment of debt — (17.1 ) — (17.1 ) Corporate allocations — (2.2 ) — (11.0 ) Net interest expense (9.4 ) (10.1 ) (16.7 ) (23.6 ) Other expense (1.2 ) (1.0 ) (2.4 ) (2.0 ) Income from continuing operations before income taxes $ 137.2 $ 98.7 $ 200.4 $ 172.2

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies	Commitments and Contingencies Leases We determine if an arrangement is a lease at inception. Our lease portfolio principally consists of operating leases related to facilities, machinery, equipment and vehicles. Our lease terms do not include options to extend or terminate the lease until we are reasonably certain that we will exercise that option. Operating lease cost for lease payments is recognized on a straight-line basis over the lease term and principally consists of fixed payments for base rent. The components of lease cost for the three and six months ended June 30, 2019 were as follows: Three months ended Six months ended In millions June 30, 2019 Operating lease cost $ 8.2 $ 16.8 Sublease income (0.3 ) (0.5 ) Total lease cost $ 7.9 $ 16.3 Supplemental cash flow information related to leases for the six months ended June 30, 2019 was as follows: In millions June 30, Operating cash flows from operating leases $ 13.2 Right-of-use assets obtained in exchange for lease obligations 84.0 Other information related to leases was as follows: June 30, Weighted-average remaining lease term of operating leases 5 years Weighted-average discount rate of operating leases 6.3 % Future minimum lease commitments under non-cancelable operating leases as of June 30, 2019 were as follows: In millions Operating Leases Q3 through Q4 2019 $ 12.7 2020 21.4 2021 17.0 2022 14.5 2023 12.2 Thereafter 18.9 Total lease payments 96.7 Less: imputed interest (14.8 ) Total $ 81.9 Future minimum lease commitments under non-cancelable operating leases based on accounting standards applicable as of December 31, 2018 were as follows: In millions Operating Leases 2019 $ 23.2 2020 17.6 2021 13.3 2022 11.1 2023 9.5 Thereafter 13.8 Total $ 88.5 Warranties and guarantees In connection with our disposition of businesses, product lines and assets, we often provide representations, warranties and indemnities to cover purchasers for various potential liabilities relating to the sold businesses, product lines and assets, such as unknown damage or liabilities relating to the assets and pre-closing tax, product liability, warranty, environmental, or other obligations. The subject matter, amounts and duration of any such indemnification obligations vary for each type of liability indemnified and may vary widely from transaction to transaction. Generally, the maximum obligations under such indemnifications are not explicitly stated and as a result, the overall amount of these obligations cannot be reasonably estimated due to their inchoate and unknown nature. Historically, we have not made significant payments for these indemnifications. We believe that if we were to incur a loss in any of these matters, the loss would not have a material adverse effect on our financial position, results of operations or cash flows. We recognize, at the inception of a guarantee, a liability for the fair value of the obligation undertaken in issuing the guarantee. In connection with the disposition of the Valves & Controls business in 2017, we agreed to indemnify Emerson Electric Co. for certain pre-closing tax liabilities. We have recorded a liability representing the fair value of our expected future obligation for this matter. We provide service and warranty policies on our products. Liability under service and warranty policies is based upon a review of historical warranty and service claim experience. Adjustments are made to accruals as claim data and historical experience warrant. The changes in the carrying amount of service and product warranties of continuing operations for the six months ended June 30, 2019 were as follows: In millions June 30, Beginning balance $ 33.9 Service and product warranty provision 25.0 Payments (24.7 ) Ending balance $ 34.2 Stand-by letters of credit, bank guarantees and bonds In certain situations, Tyco International Ltd., Pentair Ltd.’s former parent company (“Tyco”), guaranteed performance by the flow control business of Pentair Ltd. (“Flow Control”) to third parties or provided financial guarantees for financial commitments of Flow Control. In situations where Flow Control and Tyco were unable to obtain a release from these guarantees in connection with the spin-off of Flow Control from Tyco, we will indemnify Tyco for any losses it suffers as a result of such guarantees. In the ordinary course of business, we are required to commit to bonds, letters of credit and bank guarantees that require payments to our customers for any non-performance. The outstanding face value of these instruments fluctuates with the value of our projects in process and in our backlog. In addition, we issue financial stand-by letters of credit primarily to secure our performance to third parties under self-insurance programs. As of June 30, 2019 and December 31, 2018 , the outstanding value of bonds, letters of credit and bank guarantees totaled $117.2 million and $123.6 million , respectively.

Supplemental Guarantor Informat

Supplemental Guarantor Information	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Guarantor Information	Supplemental Guarantor Information Pentair plc (the “Parent Company Guarantor”) and PISG (the “Subsidiary Guarantor”), fully and unconditionally, guarantee the notes of PFSA (the “Subsidiary Issuer”). The Subsidiary Guarantor is a Switzerland limited liability company and 100 percent -owned subsidiary of the Parent Company Guarantor. The Subsidiary Issuer is a Luxembourg private limited liability company and 100 percent -owned subsidiary of the Subsidiary Guarantor. The guarantees provided by the Parent Company Guarantor and Subsidiary Guarantor are joint and several. The following supplemental financial information sets forth the Company’s Condensed Consolidating Statements of Operations and Comprehensive Income (Loss), Condensed Consolidating Balance Sheets and Condensed Consolidating Statements of Cash Flows by relevant group within the Company: Pentair plc and PISG as the guarantors, PFSA as issuer of the debt and all other non-guarantor subsidiaries. Condensed consolidating financial information for Pentair plc, PISG and PFSA on a stand-alone basis is presented using the equity method of accounting for subsidiaries. Condensed Consolidating Balance Sheet June 30, 2019 In millions Parent Company Guarantor Subsidiary Subsidiary Issuer Non-guarantor Subsidiaries Eliminations Consolidated Assets Current assets Cash and cash equivalents $ 0.3 $ — $ 0.1 $ 80.1 $ — $ 80.5 Accounts and notes receivable, net 1.2 — 1.1 458.9 (1.6 ) 459.6 Inventories — — — 396.7 — 396.7 Other current assets 2.9 — 0.1 101.7 — 104.7 Total current assets 4.4 — 1.3 1,037.4 (1.6 ) 1,041.5 Property, plant and equipment, net — — — 280.3 — 280.3 Other assets Investments in subsidiaries 1,969.2 1,968.7 2,719.8 — (6,657.7 ) — Goodwill — — — 2,287.5 — 2,287.5 Intangibles, net — — — 354.2 — 354.2 Other non-current assets 22.3 1.0 1,591.5 184.2 (1,592.5 ) 206.5 Total other assets 1,991.5 1,969.7 4,311.3 2,825.9 (8,250.2 ) 2,848.2 Total assets $ 1,995.9 $ 1,969.7 $ 4,312.6 $ 4,143.6 $ (8,251.8 ) $ 4,170.0 Liabilities and Equity Current liabilities Accounts payable $ 6.1 $ — $ 0.1 $ 257.1 $ (1.6 ) $ 261.7 Employee compensation and benefits 0.2 — — 68.5 — 68.7 Other current liabilities 33.7 0.5 7.7 337.9 — 379.8 Total current liabilities 40.0 0.5 7.8 663.5 (1.6 ) 710.2 Other liabilities Long-term debt 128.8 — 2,336.3 342.5 (1,592.5 ) 1,215.1 Pension and other post-retirement compensation and benefits — — — 89.2 — 89.2 Deferred tax liabilities — — — 119.8 — 119.8 Other non-current liabilities 20.5 — — 208.6 — 229.1 Total liabilities 189.3 0.5 2,344.1 1,423.6 (1,594.1 ) 2,363.4 Equity 1,806.6 1,969.2 1,968.5 2,720.0 (6,657.7 ) 1,806.6 Total liabilities and equity $ 1,995.9 $ 1,969.7 $ 4,312.6 $ 4,143.6 $ (8,251.8 ) $ 4,170.0 Condensed Consolidating Statement of Cash Flows Six months ended June 30, 2019 In millions Parent Subsidiary Subsidiary Non-guarantor Eliminations Consolidated Operating activities Net cash provided by (used for) operating activities $ 157.2 $ 170.4 $ 179.1 $ 104.3 $ (514.3 ) $ 96.7 Investing activities Capital expenditures — — — (29.8 ) — (29.8 ) Proceeds from sale of property and equipment — — — 0.4 — 0.4 Proceeds from the sale of businesses — — — 0.7 — 0.7 Acquisitions, net of cash acquired — — — (284.5 ) — (284.5 ) Net intercompany loan activity — — (604.3 ) (21.9 ) 626.2 — Other — — — (1.5 ) — (1.5 ) Net cash (used for) provided by investing activities — — (604.3 ) (336.6 ) 626.2 (314.7 ) Financing activities Net receipts (repayments) of commercial paper and revolving long-term debt — — 55.0 (22.1 ) — 32.9 Proceeds from long-term debt — — 400.0 — — 400.0 Debt issuance costs — — (5.7 ) — — (5.7 ) Net change in advances to subsidiaries 47.8 (170.4 ) (24.3 ) 258.8 (111.9 ) — Shares issued to employees, net of shares withheld 7.2 — — — — 7.2 Repurchases of ordinary shares (150.0 ) — — — — (150.0 ) Dividends paid (62.0 ) — — — — (62.0 ) Net cash (used for) provided by financing activities (157.0 ) (170.4 ) 425.0 236.7 (111.9 ) 222.4 Effect of exchange rate changes on cash and cash equivalents — — 0.2 1.6 — 1.8 Change in cash and cash equivalents 0.2 — — 6.0 — 6.2 Cash and cash equivalents, beginning of period 0.1 — 0.1 74.1 — 74.3 Cash and cash equivalents, end of period $ 0.3 $ — $ 0.1 $ 80.1 $ — $ 80.5 Condensed Consolidating Statement of Operations and Comprehensive Income (Loss) Three months ended June 30, 2018 In millions Parent Subsidiary Subsidiary Non-guarantor Eliminations Consolidated Net sales $ — $ — $ — $ 780.6 $ — $ 780.6 Cost of goods sold — — — 498.0 — 498.0 Gross profit — — — 282.6 — 282.6 Selling, general and administrative expenses 8.1 — 0.4 132.4 — 140.9 Research and development expenses — — — 19.1 — 19.1 Operating (loss) income (8.1 ) — (0.4 ) 131.1 — 122.6 (Earnings) loss from continuing operations of investment in subsidiaries (88.5 ) (88.1 ) (138.1 ) — 314.7 — Other (income) expense: Loss on sale of business — — — 0.9 — 0.9 Loss on early extinguishment of debt — — 17.1 — — 17.1 Net interest (income) expense — (0.4 ) 7.3 3.2 — 10.1 Other income — — — (4.2 ) — (4.2 ) Income (loss) from continuing operations before income taxes 80.4 88.5 113.3 131.2 (314.7 ) 98.7 Provision for income taxes 2.5 — — 18.3 — 20.8 Net income (loss) from continuing operations 77.9 88.5 113.3 112.9 (314.7 ) 77.9 Loss from discontinued operations, net of tax — — — (36.4 ) — (36.4 ) (Loss) earnings from discontinued operations of investment in subsidiaries (36.4 ) (36.4 ) (36.4 ) — 109.2 — Net income (loss) $ 41.5 $ 52.1 $ 76.9 $ 76.5 $ (205.5 ) $ 41.5 Comprehensive income (loss), net of tax Net income (loss) $ 41.5 $ 52.1 $ 76.9 $ 76.5 $ (205.5 ) $ 41.5 Changes in cumulative translation adjustment 22.8 22.8 22.8 22.8 (68.4 ) 22.8 Changes in market value of derivative financial instruments, net of tax 4.1 4.1 4.1 4.1 (12.3 ) 4.1 Comprehensive income (loss) $ 68.4 $ 79.0 $ 103.8 $ 103.4 $ (286.2 ) $ 68.4 Condensed Consolidating Balance Sheet December 31, 2018 In millions Parent Company Guarantor Subsidiary Subsidiary Issuer Non-guarantor Subsidiaries Eliminations Consolidated Assets Current assets Cash and cash equivalents $ 0.1 $ — $ 0.1 $ 74.1 $ — $ 74.3 Accounts and notes receivable, net 4.6 — — 483.6 — 488.2 Inventories — — — 387.5 — 387.5 Other current assets 3.4 — 2.2 99.2 (15.4 ) 89.4 Total current assets 8.1 — 2.3 1,044.4 (15.4 ) 1,039.4 Property, plant and equipment, net — — — 272.6 — 272.6 Other assets Investments in subsidiaries 1,903.8 2,036.1 2,675.7 — (6,615.6 ) — Goodwill — — — 2,072.7 — 2,072.7 Intangibles, net — — — 276.3 — 276.3 Other non-current assets 23.3 — 696.1 729.7 (1,303.6 ) 145.5 Total other assets 1,927.1 2,036.1 3,371.8 3,078.7 (7,919.2 ) 2,494.5 Total assets $ 1,935.2 $ 2,036.1 $ 3,374.1 $ 4,395.7 $ (7,934.6 ) $ 3,806.5 Liabilities and Equity Current liabilities Accounts payable $ 0.9 $ — $ — $ 377.7 $ — $ 378.6 Employee compensation and benefits 0.2 — — 111.5 — 111.7 Other current liabilities 47.6 1.5 4.4 290.3 (15.4 ) 328.4 Total current liabilities 48.7 1.5 4.4 779.5 (15.4 ) 818.7 Other liabilities Long-term debt 29.9 130.8 1,333.9 596.6 (1,303.6 ) 787.6 Pension and other post-retirement compensation and benefits — — — 90.0 — 90.0 Deferred tax liabilities — — — 105.9 — 105.9 Other non-current liabilities 20.5 — — 147.7 — 168.2 Total liabilities 99.1 132.3 1,338.3 1,719.7 (1,319.0 ) 1,970.4 Equity 1,836.1 1,903.8 2,035.8 2,676.0 (6,615.6 ) 1,836.1 Total liabilities and equity $ 1,935.2 $ 2,036.1 $ 3,374.1 $ 4,395.7 $ (7,934.6 ) $ 3,806.5 Condensed Consolidating Statement of Cash Flows Six months ended June 30, 2018 In millions Parent Subsidiary Subsidiary Non-guarantor Eliminations Consolidated Operating activities Net cash provided by (used for) operating activities $ 101.1 $ 162.2 $ 177.5 $ 272.6 $ (541.5 ) $ 171.9 Investing activities Capital expenditures — — — (20.3 ) — (20.3 ) Proceeds from sale of property and equipment — — — (0.5 ) — (0.5 ) Payments due to sale of businesses, net — — — (12.8 ) — (12.8 ) Acquisitions, net of cash acquired — — — (0.9 ) — (0.9 ) Net intercompany loan activity 30.8 59.9 22.5 490.6 (603.8 ) — Net cash provided by (used for) investing activities of continuing operations 30.8 59.9 22.5 456.1 (603.8 ) (34.5 ) Net cash used for investing activities of discontinued operations — — — (7.1 ) — (7.1 ) Net cash provided by (used for) investing activities 30.8 59.9 22.5 449.0 (603.8 ) (41.6 ) Financing activities Net receipts (repayments) of commercial paper and revolving long-term debt — — 43.8 (13.6 ) — 30.2 Repayments of long-term debt — — (675.1 ) — — (675.1 ) Premium paid on early extinguishment of debt — — (16.0 ) — — (16.0 ) Transfer of cash to nVent — — — (74.2 ) — (74.2 ) Distribution from nVent spin-off — — 993.6 — — 993.6 Net change in advances to subsidiaries 287.8 (222.1 ) (517.0 ) (694.0 ) 1,145.3 — Shares issued to employees, net of shares withheld 6.3 — — — — 6.3 Repurchases of ordinary shares (300.0 ) — — — — (300.0 ) Dividends paid (125.9 ) — — — — (125.9 ) Net cash (used for) provided by financing activities (131.8 ) (222.1 ) (170.7 ) (781.8 ) 1,145.3 (161.1 ) Change in cash held for sale — — — 27.0 — 27.0 Effect of exchange rate changes on cash and cash equivalents — — (26.1 ) 22.3 — (3.8 ) Change in cash and cash equivalents 0.1 — 3.2 (10.9 ) — (7.6 ) Cash and cash equivalents, beginning of period — — — 86.3 — 86.3 Cash and cash equivalents, end of period $ 0.1 $ — $ 3.2 $ 75.4 $ — $ 78.7

Basis of Presentation and Res_2

Basis of Presentation and Responsibility for Interim Financial Statements (Tables)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset and Liability	Contract assets and liabilities Contract assets and liabilities consisted of the following: In millions June 30, December 31, $ Change % Change Contract assets $ 43.5 $ 36.5 $ 7.0 19.2 % Contract liabilities 32.1 32.8 (0.7 ) (2.1 )% Net contract assets $ 11.4 $ 3.7 $ 7.7 208.1 %
Disaggregation of Revenue		Geographic net sales information, based on geographic destination of the sale, was as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, U.S. $ 511.1 $ 504.2 $ 937.1 $ 956.6 Western Europe 106.9 103.8 211.2 214.1 Developing (1) 129.0 115.4 237.9 228.4 Other Developed (2) 52.5 57.2 102.2 114.1 Consolidated net sales $ 799.5 $ 780.6 $ 1,488.4 $ 1,513.2 (1) Developing includes China, Eastern Europe, Latin America, the Middle East and Southeast Asia. (2) Other Developed includes Australia, Canada and Japan. Vertical net sales information was as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Residential $ 451.0 $ 437.5 $ 834.6 $ 849.7 Commercial 170.7 167.8 321.4 319.6 Industrial 177.8 175.3 332.4 343.9 Consolidated net sales $ 799.5 $ 780.6 $ 1,488.4 $ 1,513.2

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations	Operating results of the discontinued operation is summarized below: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Net sales $ — $ 155.0 $ — $ 693.9 Cost of goods sold — 93.8 — 424.0 Gross profit — 61.2 — 269.9 Selling, general and administrative expenses 0.5 93.1 0.8 231.0 Research and development expenses — 3.4 — 14.6 Operating (loss) income $ (0.5 ) $ (35.3 ) $ (0.8 ) $ 24.3 (Loss) income from discontinued operations before income taxes $ (0.4 ) $ (37.9 ) $ (1.2 ) $ 19.8 Income tax provision (benefit) 0.4 (1.5 ) 0.7 11.7 (Loss) income from discontinued operations, net of tax $ (0.8 ) $ (36.4 ) $ (1.9 ) $ 8.1

Share Plans (Tables)

Share Plans (Tables)	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Share-based Compensation Expense	Total share-based compensation expense for the three and six months ended June 30, 2019 and 2018 was as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Restricted stock units $ 2.9 $ 1.9 $ 5.7 $ 4.3 Stock options 1.1 1.0 2.5 2.2 Performance share units 1.3 2.4 2.5 4.8 Total share-based compensation expense $ 5.3 $ 5.3 $ 10.7 $ 11.3
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	We estimated the fair value of each stock option award issued in the annual share-based compensation grant using a Black-Scholes option pricing model, modified for dividends and using the following assumptions: 2019 Annual Grant Risk-free interest rate 2.89 % Expected dividend yield 1.78 % Expected share price volatility 23.3 % Expected term (years) 6.1

Restructuring (Tables)

Restructuring (Tables)	6 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Restructuring Related Costs	Restructuring-related costs included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations and Comprehensive Income included costs for severance and other restructuring costs as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Severance and related costs $ 6.4 $ 4.6 $ 7.5 $ 10.0 Other 0.3 20.4 0.3 20.6 Total restructuring costs $ 6.7 $ 25.0 $ 7.8 $ 30.6
Restructuring Costs By Segment [Table Text Block]	Restructuring costs by reportable segment were as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Aquatic Systems $ 2.0 $ 1.2 $ 2.9 $ 3.0 Filtration Solutions 1.2 11.5 1.6 13.5 Flow Technologies 2.4 6.3 2.1 8.0 Other 1.1 6.0 1.2 6.1 Consolidated $ 6.7 $ 25.0 $ 7.8 $ 30.6
Restructuring Accrual Activity Recorded on Consolidated Balance Sheets	Activity related to accrued severance and related costs recorded in Other current liabilities in the Condensed Consolidated Balance Sheets is summarized as follows for the six months ended June 30, 2019 : In millions June 30, Beginning balance $ 27.1 Costs incurred 7.5 Cash payments and other (14.3 ) Ending balance $ 20.3

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
Basic and Diluted Earnings Per Share	Basic and diluted earnings per share were calculated as follows: Three months ended Six months ended In millions, except per-share data June 30, June 30, June 30, June 30, Net income $ 114.3 $ 41.5 $ 165.6 $ 144.4 Net income from continuing operations $ 115.1 $ 77.9 $ 167.5 $ 136.3 Weighted average ordinary shares outstanding Basic 169.8 176.9 170.6 178.1 Dilutive impact of stock options, restricted stock units and performance share units 0.7 1.7 0.8 1.8 Diluted 170.5 178.6 171.4 179.9 Earnings (loss) per ordinary share Basic Continuing operations $ 0.68 $ 0.44 $ 0.98 $ 0.77 Discontinued operations (0.01 ) (0.21 ) (0.01 ) 0.04 Basic earnings per ordinary share $ 0.67 $ 0.23 $ 0.97 $ 0.81 Diluted Continuing operations $ 0.68 $ 0.44 $ 0.98 $ 0.76 Discontinued operations (0.01 ) (0.21 ) (0.01 ) 0.04 Diluted earnings per ordinary share $ 0.67 $ 0.23 $ 0.97 $ 0.80 Anti-dilutive stock options excluded from the calculation of diluted earnings per share 2.3 0.7 1.9 0.5

Supplemental Balance Sheet In_2

Supplemental Balance Sheet Information (Tables)	6 Months Ended
	Jun. 30, 2019
Disclosure Supplemental Balance Sheet Information [Abstract]
Supplemental Balance Sheet Information	In millions June 30, December 31, Inventories Raw materials and supplies $ 206.9 $ 191.3 Work-in-process 66.3 64.0 Finished goods 123.5 132.2 Total inventories $ 396.7 $ 387.5 Other current assets Cost in excess of billings $ 43.5 $ 36.5 Prepaid expenses 45.2 36.7 Prepaid income taxes 8.0 8.5 Other current assets 8.0 7.7 Total other current assets $ 104.7 $ 89.4 Property, plant and equipment, net Land and land improvements $ 33.7 $ 33.5 Buildings and leasehold improvements 182.4 178.9 Machinery and equipment 608.9 593.8 Construction in progress 44.6 35.7 Total property, plant and equipment 869.6 841.9 Accumulated depreciation and amortization 589.3 569.3 Total property, plant and equipment, net $ 280.3 $ 272.6 Other non-current assets Right-of-use lease assets $ 78.7 $ — Deferred income taxes 26.3 26.2 Deferred compensation plan assets 20.4 20.9 Other non-current assets 81.1 98.4 Total other non-current assets $ 206.5 $ 145.5 Other current liabilities Dividends payable $ 30.2 $ 30.8 Accrued warranty 34.2 33.9 Accrued rebates 57.3 55.7 Billings in excess of cost 19.9 21.3 Current lease liability 19.8 — Income taxes payable 24.2 10.4 Accrued restructuring 20.3 27.1 Other current liabilities 173.9 149.2 Total other current liabilities $ 379.8 $ 328.4 Other non-current liabilities Long-term lease liability $ 62.1 $ — Income taxes payable 46.3 46.8 Self-insurance liabilities 44.0 47.7 Deferred compensation plan liabilities 20.4 20.9 Foreign currency contract liabilities 30.8 30.6 Other non-current liabilities 25.5 22.2 Total other non-current liabilities $ 229.1 $ 168.2

Goodwill and Other Identifiab_2

Goodwill and Other Identifiable Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying Amount of Goodwill by Segment	The changes in the carrying amount of goodwill by reportable segment were as follows: In millions December 31, Acquisitions Foreign currency translation/other June 30, Aquatic Systems $ 965.9 $ — $ (1.1 ) $ 964.8 Filtration Solutions 643.5 214.9 1.1 859.5 Flow Technologies 463.3 — (0.1 ) 463.2 Total goodwill $ 2,072.7 $ 214.9 $ (0.1 ) $ 2,287.5
Detail of Identifiable Intangible Assets	Identifiable intangible assets consisted of the following: June 30, December 31, In millions Cost Accumulated amortization Net Cost Accumulated amortization Net Definite-life intangibles Customer relationships $ 422.6 $ (258.3 ) $ 164.3 $ 347.1 $ (247.9 ) $ 99.2 Trade names — — — 0.4 (0.4 ) — Proprietary technology and patents 49.6 (34.8 ) 14.8 86.2 (68.4 ) 17.8 Total definite-life intangibles 472.2 (293.1 ) 179.1 433.7 (316.7 ) 117.0 Indefinite-life intangibles Trade names 175.1 — 175.1 159.3 — 159.3 Total intangibles $ 647.3 $ (293.1 ) $ 354.2 $ 593.0 $ (316.7 ) $ 276.3
Estimated Future Amortization Expense for Identifiable Intangible Assets	Estimated future amortization expense for identifiable intangible assets during the remainder of 2019 and the next five years is as follows: Q3-Q4 In millions 2019 2020 2021 2022 2023 2024 Estimated amortization expense $ 16.0 $ 27.6 $ 22.5 $ 15.3 $ 13.0 $ 12.4

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt and Average Interest Rates on Debt Outstanding	Debt and the average interest rates on debt outstanding were as follows: In millions Average interest rate as of June 30, 2019 Maturity Year June 30, December 31, Commercial paper 2.943% 2023 $ 130.9 $ 76.0 Revolving credit facilities 3.498% 2023 4.1 26.2 Senior notes - fixed rate (1) 2.650% 2019 250.0 250.0 Senior notes - fixed rate - Euro (1) 2.450% 2019 155.3 155.1 Senior notes - fixed rate (1) 3.625% 2020 74.0 74.0 Senior notes - fixed rate (1) 5.000% 2021 103.8 103.8 Senior notes - fixed rate (1) 3.150% 2022 88.3 88.3 Senior notes - fixed rate (1) 4.650% 2025 19.3 19.3 Senior notes - fixed rate (1) 4.500% 2029 400.0 — Unamortized debt issuance costs and discounts N/A N/A (10.6 ) (5.1 ) Total debt $ 1,215.1 $ 787.6 (1) Senior notes are guaranteed as to payment by Pentair and PISG.
Debt Outstanding Matures on Calendar Year Basis	Debt outstanding, excluding unamortized issuance costs and discounts, at June 30, 2019 matures on a calendar year basis as follows: Q3-Q4 In millions 2019 2020 2021 2022 2023 2024 Thereafter Total Contractual debt obligation maturities $ 405.3 $ 74.0 $ 103.8 $ 88.3 $ 135.0 $ — $ 419.3 $ 1,225.7

Derivatives and Financial Ins_2

Derivatives and Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	Financial assets and liabilities measured at fair value on a recurring basis were as follows: June 30, 2019 In millions Level 1 Level 2 Level 3 NAV Total Recurring fair value measurements Foreign currency contract liabilities $ — $ (30.8 ) $ — $ — $ (30.8 ) Deferred compensation plan assets 12.2 — — 8.2 20.4 Total recurring fair value measurements $ 12.2 $ (30.8 ) $ — $ 8.2 $ (10.4 ) December 31, 2018 In millions Level 1 Level 2 Level 3 NAV Total Recurring fair value measurements Foreign currency contract liabilities $ — $ (30.6 ) $ — $ — $ (30.6 ) Deferred compensation plan assets 17.6 — — 3.3 20.9 Total recurring fair value measurements $ 17.6 $ (30.6 ) $ — $ 3.3 $ (9.7 )
Recorded Amounts and Estimated Fair Values of Long-term Debt and Derivative Financial Instruments	The recorded amounts and estimated fair values of total debt, excluding unamortized issuance costs and discounts, were as follows: June 30, December 31, In millions Recorded Amount Fair Value Recorded Amount Fair Value Variable rate debt $ 135.0 $ 135.0 $ 102.2 $ 102.2 Fixed rate debt 1,090.7 1,121.7 690.5 691.8 Total debt $ 1,225.7 $ 1,256.7 $ 792.7 $ 794.0

Benefit Plans (Tables)

Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Schedule of Net Benefit Costs	Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Service cost $ 0.7 $ 1.0 $ 1.4 $ 2.1 Interest cost 2.7 3.0 5.4 6.0 Expected return on plan assets (1.7 ) (2.2 ) (3.4 ) (4.5 ) Plan settlement gain (12.2 ) — (12.2 ) — Net periodic benefit (income) expense $ (10.5 ) $ 1.8 $ (8.8 ) $ 3.6

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Financial Information by Reportable Segment	Financial information by reportable segment is as follows: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Net sales Aquatic Systems $ 270.6 $ 276.2 $ 491.1 $ 516.6 Filtration Solutions 285.6 262.1 524.9 513.7 Flow Technologies 243.0 241.9 471.7 482.2 Other 0.3 0.4 0.7 0.7 Consolidated $ 799.5 $ 780.6 $ 1,488.4 $ 1,513.2 Segment income (loss) Aquatic Systems $ 76.8 $ 79.6 $ 129.2 $ 139.6 Filtration Solutions 50.0 52.3 83.7 86.0 Flow Technologies 41.9 44.4 72.0 83.1 Other (14.6 ) (12.2 ) (32.1 ) (27.6 ) Consolidated $ 154.1 $ 164.1 $ 252.8 $ 281.1
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	The following table presents a reconciliation of consolidated segment income to consolidated income from continuing operations before income taxes: Three months ended Six months ended In millions June 30, June 30, June 30, June 30, Segment income $ 154.1 $ 164.1 $ 252.8 $ 281.1 Deal-related costs and expenses — — (4.2 ) — Inventory step-up (0.5 ) — (2.2 ) — Restructuring and other (6.7 ) (19.0 ) (7.8 ) (24.6 ) Intangible amortization (8.3 ) (9.1 ) (16.5 ) (18.4 ) Pension settlement gain 12.2 — 12.2 — Asset impairment (2.9 ) (6.0 ) (18.2 ) (6.0 ) (Loss) gain on sale of business (0.1 ) (0.9 ) 3.4 (6.2 ) Loss on early extinguishment of debt — (17.1 ) — (17.1 ) Corporate allocations — (2.2 ) — (11.0 ) Net interest expense (9.4 ) (10.1 ) (16.7 ) (23.6 ) Other expense (1.2 ) (1.0 ) (2.4 ) (2.0 ) Income from continuing operations before income taxes $ 137.2 $ 98.7 $ 200.4 $ 172.2

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Components of Lease Cost and Other Information Related to Leases	Other information related to leases was as follows: June 30, Weighted-average remaining lease term of operating leases 5 years Weighted-average discount rate of operating leases 6.3 % The components of lease cost for the three and six months ended June 30, 2019 were as follows: Three months ended Six months ended In millions June 30, 2019 Operating lease cost $ 8.2 $ 16.8 Sublease income (0.3 ) (0.5 ) Total lease cost $ 7.9 $ 16.3
Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases for the six months ended June 30, 2019 was as follows: In millions June 30, Operating cash flows from operating leases $ 13.2 Right-of-use assets obtained in exchange for lease obligations 84.0
Future Minimum Lease Commitments Under Non-cancelable Operating Leases	Future minimum lease commitments under non-cancelable operating leases as of June 30, 2019 were as follows: In millions Operating Leases Q3 through Q4 2019 $ 12.7 2020 21.4 2021 17.0 2022 14.5 2023 12.2 Thereafter 18.9 Total lease payments 96.7 Less: imputed interest (14.8 ) Total $ 81.9
Changes in Carrying Amount of Service and Product Warranties	The changes in the carrying amount of service and product warranties of continuing operations for the six months ended June 30, 2019 were as follows: In millions June 30, Beginning balance $ 33.9 Service and product warranty provision 25.0 Payments (24.7 ) Ending balance $ 34.2

Supplemental Guarantor Inform_2

Supplemental Guarantor Information (Tables)	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Condensed Consolidating Statement of Operations and Comprehensive Income (Loss)	Condensed Consolidating Statement of Operations and Comprehensive Income (Loss) Three months ended June 30, 2018 In millions Parent Subsidiary Subsidiary Non-guarantor Eliminations Consolidated Net sales $ — $ — $ — $ 780.6 $ — $ 780.6 Cost of goods sold — — — 498.0 — 498.0 Gross profit — — — 282.6 — 282.6 Selling, general and administrative expenses 8.1 — 0.4 132.4 — 140.9 Research and development expenses — — — 19.1 — 19.1 Operating (loss) income (8.1 ) — (0.4 ) 131.1 — 122.6 (Earnings) loss from continuing operations of investment in subsidiaries (88.5 ) (88.1 ) (138.1 ) — 314.7 — Other (income) expense: Loss on sale of business — — — 0.9 — 0.9 Loss on early extinguishment of debt — — 17.1 — — 17.1 Net interest (income) expense — (0.4 ) 7.3 3.2 — 10.1 Other income — — — (4.2 ) — (4.2 ) Income (loss) from continuing operations before income taxes 80.4 88.5 113.3 131.2 (314.7 ) 98.7 Provision for income taxes 2.5 — — 18.3 — 20.8 Net income (loss) from continuing operations 77.9 88.5 113.3 112.9 (314.7 ) 77.9 Loss from discontinued operations, net of tax — — — (36.4 ) — (36.4 ) (Loss) earnings from discontinued operations of investment in subsidiaries (36.4 ) (36.4 ) (36.4 ) — 109.2 — Net income (loss) $ 41.5 $ 52.1 $ 76.9 $ 76.5 $ (205.5 ) $ 41.5 Comprehensive income (loss), net of tax Net income (loss) $ 41.5 $ 52.1 $ 76.9 $ 76.5 $ (205.5 ) $ 41.5 Changes in cumulative translation adjustment 22.8 22.8 22.8 22.8 (68.4 ) 22.8 Changes in market value of derivative financial instruments, net of tax 4.1 4.1 4.1 4.1 (12.3 ) 4.1 Comprehensive income (loss) $ 68.4 $ 79.0 $ 103.8 $ 103.4 $ (286.2 ) $ 68.4
Schedule of Condensed Consolidating Balance Sheet	Condensed Consolidating Balance Sheet June 30, 2019 In millions Parent Company Guarantor Subsidiary Subsidiary Issuer Non-guarantor Subsidiaries Eliminations Consolidated Assets Current assets Cash and cash equivalents $ 0.3 $ — $ 0.1 $ 80.1 $ — $ 80.5 Accounts and notes receivable, net 1.2 — 1.1 458.9 (1.6 ) 459.6 Inventories — — — 396.7 — 396.7 Other current assets 2.9 — 0.1 101.7 — 104.7 Total current assets 4.4 — 1.3 1,037.4 (1.6 ) 1,041.5 Property, plant and equipment, net — — — 280.3 — 280.3 Other assets Investments in subsidiaries 1,969.2 1,968.7 2,719.8 — (6,657.7 ) — Goodwill — — — 2,287.5 — 2,287.5 Intangibles, net — — — 354.2 — 354.2 Other non-current assets 22.3 1.0 1,591.5 184.2 (1,592.5 ) 206.5 Total other assets 1,991.5 1,969.7 4,311.3 2,825.9 (8,250.2 ) 2,848.2 Total assets $ 1,995.9 $ 1,969.7 $ 4,312.6 $ 4,143.6 $ (8,251.8 ) $ 4,170.0 Liabilities and Equity Current liabilities Accounts payable $ 6.1 $ — $ 0.1 $ 257.1 $ (1.6 ) $ 261.7 Employee compensation and benefits 0.2 — — 68.5 — 68.7 Other current liabilities 33.7 0.5 7.7 337.9 — 379.8 Total current liabilities 40.0 0.5 7.8 663.5 (1.6 ) 710.2 Other liabilities Long-term debt 128.8 — 2,336.3 342.5 (1,592.5 ) 1,215.1 Pension and other post-retirement compensation and benefits — — — 89.2 — 89.2 Deferred tax liabilities — — — 119.8 — 119.8 Other non-current liabilities 20.5 — — 208.6 — 229.1 Total liabilities 189.3 0.5 2,344.1 1,423.6 (1,594.1 ) 2,363.4 Equity 1,806.6 1,969.2 1,968.5 2,720.0 (6,657.7 ) 1,806.6 Total liabilities and equity $ 1,995.9 $ 1,969.7 $ 4,312.6 $ 4,143.6 $ (8,251.8 ) $ 4,170.0 Condensed Consolidating Balance Sheet December 31, 2018 In millions Parent Company Guarantor Subsidiary Subsidiary Issuer Non-guarantor Subsidiaries Eliminations Consolidated Assets Current assets Cash and cash equivalents $ 0.1 $ — $ 0.1 $ 74.1 $ — $ 74.3 Accounts and notes receivable, net 4.6 — — 483.6 — 488.2 Inventories — — — 387.5 — 387.5 Other current assets 3.4 — 2.2 99.2 (15.4 ) 89.4 Total current assets 8.1 — 2.3 1,044.4 (15.4 ) 1,039.4 Property, plant and equipment, net — — — 272.6 — 272.6 Other assets Investments in subsidiaries 1,903.8 2,036.1 2,675.7 — (6,615.6 ) — Goodwill — — — 2,072.7 — 2,072.7 Intangibles, net — — — 276.3 — 276.3 Other non-current assets 23.3 — 696.1 729.7 (1,303.6 ) 145.5 Total other assets 1,927.1 2,036.1 3,371.8 3,078.7 (7,919.2 ) 2,494.5 Total assets $ 1,935.2 $ 2,036.1 $ 3,374.1 $ 4,395.7 $ (7,934.6 ) $ 3,806.5 Liabilities and Equity Current liabilities Accounts payable $ 0.9 $ — $ — $ 377.7 $ — $ 378.6 Employee compensation and benefits 0.2 — — 111.5 — 111.7 Other current liabilities 47.6 1.5 4.4 290.3 (15.4 ) 328.4 Total current liabilities 48.7 1.5 4.4 779.5 (15.4 ) 818.7 Other liabilities Long-term debt 29.9 130.8 1,333.9 596.6 (1,303.6 ) 787.6 Pension and other post-retirement compensation and benefits — — — 90.0 — 90.0 Deferred tax liabilities — — — 105.9 — 105.9 Other non-current liabilities 20.5 — — 147.7 — 168.2 Total liabilities 99.1 132.3 1,338.3 1,719.7 (1,319.0 ) 1,970.4 Equity 1,836.1 1,903.8 2,035.8 2,676.0 (6,615.6 ) 1,836.1 Total liabilities and equity $ 1,935.2 $ 2,036.1 $ 3,374.1 $ 4,395.7 $ (7,934.6 ) $ 3,806.5
Schedule of Condensed Consolidating Statement of Cash Flows	Condensed Consolidating Statement of Cash Flows Six months ended June 30, 2019 In millions Parent Subsidiary Subsidiary Non-guarantor Eliminations Consolidated Operating activities Net cash provided by (used for) operating activities $ 157.2 $ 170.4 $ 179.1 $ 104.3 $ (514.3 ) $ 96.7 Investing activities Capital expenditures — — — (29.8 ) — (29.8 ) Proceeds from sale of property and equipment — — — 0.4 — 0.4 Proceeds from the sale of businesses — — — 0.7 — 0.7 Acquisitions, net of cash acquired — — — (284.5 ) — (284.5 ) Net intercompany loan activity — — (604.3 ) (21.9 ) 626.2 — Other — — — (1.5 ) — (1.5 ) Net cash (used for) provided by investing activities — — (604.3 ) (336.6 ) 626.2 (314.7 ) Financing activities Net receipts (repayments) of commercial paper and revolving long-term debt — — 55.0 (22.1 ) — 32.9 Proceeds from long-term debt — — 400.0 — — 400.0 Debt issuance costs — — (5.7 ) — — (5.7 ) Net change in advances to subsidiaries 47.8 (170.4 ) (24.3 ) 258.8 (111.9 ) — Shares issued to employees, net of shares withheld 7.2 — — — — 7.2 Repurchases of ordinary shares (150.0 ) — — — — (150.0 ) Dividends paid (62.0 ) — — — — (62.0 ) Net cash (used for) provided by financing activities (157.0 ) (170.4 ) 425.0 236.7 (111.9 ) 222.4 Effect of exchange rate changes on cash and cash equivalents — — 0.2 1.6 — 1.8 Change in cash and cash equivalents 0.2 — — 6.0 — 6.2 Cash and cash equivalents, beginning of period 0.1 — 0.1 74.1 — 74.3 Cash and cash equivalents, end of period $ 0.3 $ — $ 0.1 $ 80.1 $ — $ 80.5 Condensed Consolidating Statement of Cash Flows Six months ended June 30, 2018 In millions Parent Subsidiary Subsidiary Non-guarantor Eliminations Consolidated Operating activities Net cash provided by (used for) operating activities $ 101.1 $ 162.2 $ 177.5 $ 272.6 $ (541.5 ) $ 171.9 Investing activities Capital expenditures — — — (20.3 ) — (20.3 ) Proceeds from sale of property and equipment — — — (0.5 ) — (0.5 ) Payments due to sale of businesses, net — — — (12.8 ) — (12.8 ) Acquisitions, net of cash acquired — — — (0.9 ) — (0.9 ) Net intercompany loan activity 30.8 59.9 22.5 490.6 (603.8 ) — Net cash provided by (used for) investing activities of continuing operations 30.8 59.9 22.5 456.1 (603.8 ) (34.5 ) Net cash used for investing activities of discontinued operations — — — (7.1 ) — (7.1 ) Net cash provided by (used for) investing activities 30.8 59.9 22.5 449.0 (603.8 ) (41.6 ) Financing activities Net receipts (repayments) of commercial paper and revolving long-term debt — — 43.8 (13.6 ) — 30.2 Repayments of long-term debt — — (675.1 ) — — (675.1 ) Premium paid on early extinguishment of debt — — (16.0 ) — — (16.0 ) Transfer of cash to nVent — — — (74.2 ) — (74.2 ) Distribution from nVent spin-off — — 993.6 — — 993.6 Net change in advances to subsidiaries 287.8 (222.1 ) (517.0 ) (694.0 ) 1,145.3 — Shares issued to employees, net of shares withheld 6.3 — — — — 6.3 Repurchases of ordinary shares (300.0 ) — — — — (300.0 ) Dividends paid (125.9 ) — — — — (125.9 ) Net cash (used for) provided by financing activities (131.8 ) (222.1 ) (170.7 ) (781.8 ) 1,145.3 (161.1 ) Change in cash held for sale — — — 27.0 — 27.0 Effect of exchange rate changes on cash and cash equivalents — — (26.1 ) 22.3 — (3.8 ) Change in cash and cash equivalents 0.1 — 3.2 (10.9 ) — (7.6 ) Cash and cash equivalents, beginning of period — — — 86.3 — 86.3 Cash and cash equivalents, end of period $ 0.1 $ — $ 3.2 $ 75.4 $ — $ 78.7

Basis of Presentation and Res_3

Basis of Presentation and Responsibility for Interim Financial Statements - Adoption of New Accounting Standards (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Liability, Current	$ 19.8		$ 19.8		$ 0
Operating Lease, Liability, Noncurrent	62.1		62.1		0
Net periodic benefit cost	(10.5)	$ 1.8	(8.8)	$ 3.6
Operating Lease, Right-of-Use Asset	$ 78.7		$ 78.7		$ 0

Revenue - Schedule of Contract

Revenue - Schedule of Contract Assets and Liabilities (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Contract assets	$ 43,500,000	$ 36,500,000
Contract liabilities	32,100,000	32,800,000
Net contract assets	11,400,000	$ 3,700,000
$ Change
Contract assets	7,000,000
Contract liabilities	(700,000)
Net contract assets	$ 7,700,000
% Change
Contract assets	19.20%
Contract liabilities	(2.10%)
Net contract assets	208.10%
Percent of contract liabilities	70.00%
Impairment losses on contract assets	$ 0

Revenue - Additional Informatio

Revenue - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019USD ($)
Disaggregation of Revenue [Line Items]
Percent of contract liabilities	70.00%
Change in net contract assets	$ 7,700,000
Impairment losses on contract assets	$ 0

Revenue - Performance Obligatio

Revenue - Performance Obligations (Details) $ in Millions	Jun. 30, 2019USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 59.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-07-01 | Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-07-01 | Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation period	18 months

Revenue - Geographic Net Sales

Revenue - Geographic Net Sales Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 799.5	$ 780.6	$ 1,488.4	$ 1,513.2
Residential
Disaggregation of Revenue [Line Items]
Net sales	451	437.5	834.6	849.7
Commercial
Disaggregation of Revenue [Line Items]
Net sales	170.7	167.8	321.4	319.6
Industrial
Disaggregation of Revenue [Line Items]
Net sales	177.8	175.3	332.4	343.9
U.S.
Disaggregation of Revenue [Line Items]
Net sales	511.1	504.2	937.1	956.6
Western Europe
Disaggregation of Revenue [Line Items]
Net sales	106.9	103.8	211.2	214.1
Developing
Disaggregation of Revenue [Line Items]
Net sales	129	115.4	237.9	228.4
Other Developed
Disaggregation of Revenue [Line Items]
Net sales	$ 52.5	$ 57.2	$ 102.2	$ 114.1

Acquisitions and Discontinued_2

Acquisitions and Discontinued Operations Acquisitions (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Feb. 28, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Acquisitions, net of cash acquired		$ 284.5	$ 0.9
Goodwill		$ 2,287.5		$ 2,072.7
Aquion
Business Acquisition [Line Items]
Acquisitions, net of cash acquired	$ 163.4
Goodwill	93.9
Indefinite-lived trade name intangible assets	15.7
Definite-lived customer relationships	$ 78.8
Estimated useful life	15 years
Pelican
Business Acquisition [Line Items]
Acquisitions, net of cash acquired	$ 121.1
Goodwill	$ 121

Acquisitions and Discontinued_3

Acquisitions and Discontinued Operations Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Separation costs	$ 55.3	$ 79.9

Acquisitions and Discontinued_4

Acquisitions and Discontinued Operations Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 0	$ 155	$ 0	$ 693.9
Cost of goods sold	0	93.8	0	424
Gross profit	0	61.2	0	269.9
Selling, general and administrative expenses	0.5	93.1	0.8	231
Research and development expenses	0	3.4	0	14.6
Operating (loss) income	(0.5)	(35.3)	(0.8)	24.3
(Loss) income from discontinued operations before income taxes	(0.4)	(37.9)	(1.2)	19.8
Income tax provision (benefit)	0.4	(1.5)	0.7	11.7
(Loss) income from discontinued operations, net of tax	(0.8)	(36.4)	(1.9)	8.1
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	$ (0.8)	$ (36.4)	$ (1.9)	$ 8.1

Share Plans - Schedule of Share

Share Plans - Schedule of Share-based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation associated with discontinued operations		$ 1.3		$ 3.4
Total share-based compensation expense	$ 5.3	5.3	$ 10.7	11.3
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	2.9	1.9	5.7	4.3
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	1.1	1	2.5	2.2
Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 1.3	$ 2.4	$ 2.5	$ 4.8

Share Plans - Schedule of Valua

Share Plans - Schedule of Valuation Assumptions (Details)	3 Months Ended
	Mar. 31, 2019
Share-based Payment Arrangement [Abstract]
Risk-free interest rate	2.89%
Expected dividend yield	1.78%
Expected share price volatility	23.30%
Expected term (years)	6 years 1 month 6 days

Share Plans - Additional Inform

Share Plans - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation associated with discontinued operations		$ 1.3	$ 3.4
2012 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)	0.8
2012 Stock Incentive Plan | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)	0.3
Weighted-average grant date fair value (in dollars per share)	$ 40.84
2012 Stock Incentive Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)	0.4
Weighted-average grant date fair value of options (in dollars per share)	$ 8.84
2012 Stock Incentive Plan | Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)	0.1
Weighted-average grant date fair value (in dollars per share)	$ 38.47

Restructuring - Additional Inf

Restructuring - Additional Information (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)Person	Jun. 30, 2018USD ($)
Restructuring Cost and Reserve [Line Items]
Number of employees | Person			300
Total restructuring costs	$ 6.7	$ 25	$ 7.8	$ 30.6
Aquatic Systems
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	2	1.2	2.9	3
Filtration Solutions
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	1.2	11.5	1.6	13.5
Flow Technologies
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	2.4	6.3	2.1	8
Other
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	$ 1.1	$ 6	$ 1.2	$ 6.1

Restructuring - Costs Included

Restructuring - Costs Included in Selling, General & Administrative Expenses (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 6.7	$ 25	$ 7.8	$ 30.6
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	6.4	4.6	7.5	10
Other
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 0.3	$ 20.4	$ 0.3	$ 20.6

Restructuring - Accrual Activit

Restructuring - Accrual Activity (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 27.1
Costs incurred	7.5
Cash payments and other	(14.3)
Ending balance	$ 20.3

Earnings Per Share - Basic and

Earnings Per Share - Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net income	$ 114.3	$ 41.5	$ 165.6	$ 144.4
Net income from continuing operations	$ 115.1	$ 77.9	$ 167.5	$ 136.3
Weighted average common shares outstanding
Basic (shares)	169.8	176.9	170.6	178.1
Dilutive impact of stock options, restricted stock units and performance share units	0.7	1.7	0.8	1.8
Diluted (shares)	170.5	178.6	171.4	179.9
Earnings (loss) Per Share, Basic
Continuing operations (in dollars per share)	$ 0.68	$ 0.44	$ 0.98	$ 0.77
Discontinued operations (in dollars per share)	(0.01)	(0.21)	(0.01)	0.04
Basic earnings (loss) per ordinary share (in dollars per share)	0.67	0.23	0.97	0.81
Earnings (loss) Per Share, Diluted
Continuing operations (in dollars per share)	0.68	0.44	0.98	0.76
Discontinued operations (in dollars per share)	(0.01)	(0.21)	(0.01)	0.04
Diluted earnings (loss) per ordinary share (in dollars per share)	$ 0.67	$ 0.23	$ 0.97	$ 0.80
Anti-dilutive stock options excluded from the calculation of diluted earnings per share	2.3	0.7	1.9	0.5

Supplemental Balance Sheet In_3

Supplemental Balance Sheet Information (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Inventories
Raw materials and supplies	$ 206.9	$ 191.3
Work-in-process	66.3	64
Finished goods	123.5	132.2
Total inventories	396.7	387.5
Other current assets
Cost in excess of billings	43.5	36.5
Prepaid expenses	45.2	36.7
Prepaid income taxes	8	8.5
Other current assets	8	7.7
Total other current assets	104.7	89.4
Property, plant and equipment, net
Land and land improvements	33.7	33.5
Buildings and leasehold improvements	182.4	178.9
Machinery and equipment	608.9	593.8
Construction in progress	44.6	35.7
Total property, plant and equipment	869.6	841.9
Accumulated depreciation and amortization	589.3	569.3
Total property, plant and equipment, net	280.3	272.6
Operating Lease, Right-of-Use Asset	78.7	0
Other non-current assets
Prepaid income taxes	26.3	26.2
Deferred compensation plan assets	20.4	20.9
Other non-current assets	81.1	98.4
Total other non-current assets	206.5	145.5
Other current liabilities
Dividends payable	30.2	30.8
Accrued warranty	34.2	33.9
Accrued rebates	57.3	55.7
Billings in excess of cost	19.9	21.3
Operating Lease, Liability, Current	19.8	0
Income taxes payable	24.2	10.4
Accrued restructuring	20.3	27.1
Other current liabilities	173.9	149.2
Total other current liabilities	379.8	328.4
Operating Lease, Liability, Noncurrent	62.1	0
Other non-current liabilities
Income taxes payable	46.3	46.8
Self-insurance liabilities	44	47.7
Deferred compensation plan liabilities	20.4	20.9
Foreign currency contract liabilities	30.8	30.6
Other non-current liabilities	25.5	22.2
Total other non-current liabilities	$ 229.1	$ 168.2

Goodwill and Other Identifiab_3

Goodwill and Other Identifiable Intangible Assets - Changes in Carrying Amount of Goodwill by Segment (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 2,072.7
Acquisitions/divestitures	214.9
Foreign currency translation/other	(0.1)
Ending Balance	2,287.5
Aquatic Systems
Goodwill [Roll Forward]
Beginning Balance	965.9
Acquisitions/divestitures	0
Foreign currency translation/other	(1.1)
Ending Balance	964.8
Filtration Solutions
Goodwill [Roll Forward]
Beginning Balance	643.5
Acquisitions/divestitures	214.9
Foreign currency translation/other	1.1
Ending Balance	859.5
Flow Technologies
Goodwill [Roll Forward]
Beginning Balance	463.3
Acquisitions/divestitures	0
Foreign currency translation/other	(0.1)
Ending Balance	$ 463.2

Goodwill and Other Identifiab_4

Goodwill and Other Identifiable Intangible Assets - Detail of Identifiable Intangible Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Acquired Intangible Assets By Major Class [Line Items]
Cost	$ 472.2	$ 433.7
Accumulated amortization	(293.1)	(316.7)
Net	179.1	117
Net, indefinite-life intangibles	175.1	159.3
Cost	647.3	593
Net	354.2	276.3
Customer relationships
Acquired Intangible Assets By Major Class [Line Items]
Cost	422.6	347.1
Accumulated amortization	(258.3)	(247.9)
Net	164.3	99.2
Trade names intangibles
Acquired Intangible Assets By Major Class [Line Items]
Cost	0	0.4
Accumulated amortization	0	(0.4)
Net	0	0
Patented Technology [Member]
Acquired Intangible Assets By Major Class [Line Items]
Cost	49.6	86.2
Accumulated amortization	(34.8)	(68.4)
Net	$ 14.8	$ 17.8

Goodwill and Other Identifiab_5

Goodwill and Other Identifiable Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible asset amortization expense	$ 16.5	$ 18.4

Goodwill and Other Identifiab_6

Goodwill and Other Identifiable Intangible Assets - Estimated Future Amortization Expense for Identifiable Intangible Assets (Detail) $ in Millions	Jun. 30, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Q3 - Q4 2019	$ 16
2020	27.6
2021	22.5
2022	15.3
2023	13
2024	$ 12.4

Debt - Debt and Average Interes

Debt - Debt and Average Interest Rates on Debt Outstanding (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Unamortized debt issuance costs and discounts	$ (10.6)	$ (5.1)
Total debt	$ 1,215.1	787.6
Commercial Paper
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	2.943%
Commercial paper	$ 130.9	76
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	3.498%
Total debt	$ 4.1	26.2
Senior Notes | Senior Notes 2.650% Due 2019
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	2.65%
Total debt	$ 250	250
Senior Notes | Senior Notes 2.45% Due 2019
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	2.45%
Total debt	$ 155.3	155.1
Senior Notes | Senior Notes 3.625% Due 2020
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	3.625%
Total debt	$ 74	74
Senior Notes | Senior Notes 5.000% Due 2021
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	5.00%
Total debt	$ 103.8	103.8
Senior Notes | Senior Notes 3.150% Due 2022
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	3.15%
Total debt	$ 88.3	88.3
Senior Notes | Senior Notes 4.650% Due 2025
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	4.65%
Total debt	$ 19.3	19.3
Senior Notes | Senior Notes 4.500% Due 2029
Debt Instrument [Line Items]
Average interest rate as of June 30, 2019	4.50%
Total debt	$ 400	$ 0

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($)	Apr. 25, 2018	May 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Leverage ratio covenant period			12 months
Debt			$ 1,215,100,000	$ 787,600,000
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year			405,300,000
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Debt term	5 years
Credit facility maximum borrowing capacity	$ 800,000,000
Debt			$ 4,100,000	26,200,000
Average interest rate as of June 30, 2019			3.498%
Line of Credit | Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Debt covenant, unrestricted cash			$ 250,000,000
Debt agreement financial covenant, leverage ratio			1
EBITDA ratio for debt			3
Line of Credit | Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity		$ 900,000,000	$ 765,000,000
Optional line of credit limit increase			1,100,000,000
Line of Credit Facility, Increase		$ 100,000,000
Debt covenant, unrestricted cash			$ 5,000,000
Debt agreement financial covenant, leverage ratio			3.75
EBITDA ratio for debt			1
Commercial Paper
Debt Instrument [Line Items]
Commercial paper			$ 130,900,000	76,000,000
Average interest rate as of June 30, 2019			2.943%
Senior Notes | Senior Notes 4.500% Due 2029
Debt Instrument [Line Items]
Debt			$ 400,000,000	$ 0
Average interest rate as of June 30, 2019			4.50%
Other Credit Facilities [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity			$ 21,100,000
Borrowings outstanding			$ 0

Debt - Debt Outstanding Matures

Debt - Debt Outstanding Matures on Calendar Year Basis (Detail) $ in Millions	Jun. 30, 2019USD ($)
Debt Disclosure [Abstract]
Q3 - Q4 2019	$ 405.3
2020	74
2021	103.8
2022	88.3
2023	135
Thereafter	419.3
Total debt	$ 1,225.7

Derivatives and Financial Ins_3

Derivatives and Financial Instruments - Additional Information (Detail) $ in Millions	1 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)	Jun. 30, 2019EUR (€)	Sep. 30, 2015EUR (€)
Derivative [Line Items]
Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax		$ 1	$ 0.8
Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional amount		53.7	47.6
Currency Swap [Member]
Derivative [Line Items]
Notional amount		625.3	283.8
Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax		$ 13.9	$ 14.5
Senior Notes 2.45% Due 2019 | Senior Notes
Derivative [Line Items]
Amount of hedged item | €				€ 136,600,000	€ 500,000,000
Interest rate					2.45%
Tender Offer	$ 363.4

Derivatives and Financial Ins_4

Derivatives and Financial Instruments - Recorded Amounts and Estimated Fair Values (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Total debt	$ 1,225.7
Recorded Amount
Derivative [Line Items]
Variable rate debt	135	$ 102.2
Fixed rate debt	1,090.7	690.5
Total debt	1,225.7	792.7
Fair Value
Derivative [Line Items]
Variable rate debt	135	102.2
Fixed rate debt	1,121.7	691.8
Total debt	$ 1,256.7	$ 794

Derivatives and Financial Ins_5

Derivatives and Financial Instruments - Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract liabilities	$ (30.8)	$ (30.6)
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract liabilities	(30.8)	(30.6)
Deferred compensation plan	20.4	20.9
Total recurring fair value measurements	(10.4)	(9.7)
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract liabilities	0	0
Deferred compensation plan	12.2	17.6
Total recurring fair value measurements	12.2	17.6
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract liabilities	(30.8)	(30.6)
Deferred compensation plan	0	0
Total recurring fair value measurements	(30.8)	(30.6)
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract liabilities	0	0
Deferred compensation plan	0	0
Total recurring fair value measurements	0	0
Fair Value Measured at Net Asset Value Per Share [Member] | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract liabilities		0
Deferred compensation plan		3.3
Total recurring fair value measurements	$ 8.2	$ 3.3

Income Taxes - Additional Info

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Effective income tax rate	16.40%	20.80%
Total gross liability for unrecognized tax benefits	$ 48.9		$ 51.4

Benefit Plans - Components of N

Benefit Plans - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Retirement Benefits [Abstract]
Service cost	$ 0.7	$ 1	$ 1.4	$ 2.1
Interest cost	2.7	3	5.4	6
Expected return on plan assets	(1.7)	(2.2)	(3.4)	(4.5)
Actuarial gain	(12.2)	0	(12.2)	0
Net periodic benefit cost	$ (10.5)	$ 1.8	$ (8.8)	$ 3.6

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Defined Benefit Plan Disclosure [Line Items]
Pension and other post-retirement plan contribution	$ 10.7			$ 10.7	$ 0
Actuarial gain		$ 12.2	$ 0	$ 12.2	$ 0

Shareholders' Equity - Additio

Shareholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2014	Dec. 31, 2018	May 08, 2018
Stockholders Equity Note Disclosure [Line Items]
Payments for Repurchase of Common Stock					$ 150,000,000	$ 300,000,000
Common Stock, Dividends, Per Share, Cash Paid	$ 0.18	$ 0.18	$ 0.175	$ 0.35
Dividends payable	$ 30,200,000				30,200,000			$ 30,800,000
May 2018 Share Repurchase Program [Member]
Stockholders Equity Note Disclosure [Line Items]
Repurchase of shares of our common stock up to a maximum aggregate value									$ 750,000,000
Common stock authorized for repurchase, expiration date							May 31, 2021
December 2014 Share Repurchase Program
Stockholders Equity Note Disclosure [Line Items]
Share repurchase program remaining available amount	$ 250,000,000				$ 250,000,000

Segment Information - Financial

Segment Information - Financial Information by Reportable Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Net sales	$ 799.5	$ 780.6	$ 1,488.4	$ 1,513.2
Segment income	133.8	122.6	201.4	215.3
Aquatic Systems
Segment Reporting Information [Line Items]
Net sales	270.6	276.2	491.1	516.6
Segment income	76.8	79.6	129.2	139.6
Filtration Solutions
Segment Reporting Information [Line Items]
Net sales	285.6	262.1	524.9	513.7
Segment income	50	52.3	83.7	86
Flow Technologies
Segment Reporting Information [Line Items]
Net sales	243	241.9	471.7	482.2
Segment income	41.9	44.4	72	83.1
Other
Segment Reporting Information [Line Items]
Net sales	0.3	0.4	0.7	0.7
Segment income	(14.6)	(12.2)	(32.1)	(27.6)
Operating Segments
Segment Reporting Information [Line Items]
Segment income	$ 154.1	$ 164.1	$ 252.8	$ 281.1

Segment Information Reconciliat

Segment Information Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment income	$ 133.8	$ 122.6	$ 201.4	$ 215.3
Inventory step-up	(0.5)	0
Restructuring and other	(6.7)	(25)	(7.8)	(30.6)
Intangible amortization			(16.5)	(18.4)
Pension settlement gain	12.2	0
Asset Impairment	(2.9)	(6)	(18.2)	(6)
(Loss) gain on sale of business	(0.1)	(0.9)	3.4	(6.2)
Loss on early extinguishment of debt	0	(17.1)	0	(17.1)
Income from continuing operations before income taxes	137.2	98.7	200.4	172.2
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment income	154.1	164.1	252.8	281.1
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and other	(6.7)	(19)	(7.8)	(24.6)
Intangible amortization	(8.3)	(9.1)	(16.5)	(18.4)
(Loss) gain on sale of business	(0.1)	(0.9)	3.4	(6.2)
Loss on early extinguishment of debt	0	(17.1)	0	(17.1)
Corporate allocations	0	(2.2)	0	(11)
Net interest expense	(9.4)	(10.1)	(16.7)	(23.6)
Other expense	(1.2)	(1)	(2.4)	(2)
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Deal related costs and expenses	$ 0	$ 0	(4.2)	0
Inventory step-up			(2.2)	0
Pension settlement gain			12.2	0
Asset Impairment			$ (18.2)	$ (6)

Commitments and Contingencies -

Commitments and Contingencies - Components of Lease Cost and Other Information Related to Leases (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)
Lease, Cost [Abstract]
Operating lease cost	$ 8.2	$ 16.8
Sublease income	(0.3)	(0.5)
Total lease cost	$ 7.9	$ 16.3
Weighted-average remaining lease term of operating leases	5 years	5 years
Weighted-average discount rate of operating leases	6.30%	6.30%

Commitments and Contingencies_2

Commitments and Contingencies - Supplemental Cash Flow Information Related to Leases (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Commitments and Contingencies Disclosure [Abstract]
Operating cash flows from operating leases	$ 13.2
Right-of-use assets obtained in exchange for lease obligations	$ 84

Commitments and Contingencies_3

Commitments and Contingencies - Future Minimum Lease Commitments Under Non-cancelable Operating Leases (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Q3 through Q4 2019	$ 12.7	$ 23.2
2020	21.4	17.6
2021	17	13.3
2022	14.5	11.1
2023	12.2	9.5
Thereafter	18.9	13.8
Total lease payments	96.7	$ 88.5
Less: imputed interest	(14.8)
Total	$ 81.9

Commitments and Contingencies

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Letters of credit outstanding	$ 117.2	$ 123.6

Commitments and Contingencies_4

Commitments and Contingencies - Changes in Carrying Amount of Service and Product Warranties (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	$ 33.9
Service and product warranty provision	25
Payments	(24.7)
Ending balance	$ 34.2

Supplemental Guarantor Inform_3

Supplemental Guarantor Information - Condensed Consolidating Statement of Operations and Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Condensed Financial Statements, Captions [Line Items]
Net sales	$ 799.5		$ 780.6		$ 1,488.4	$ 1,513.2
Cost of goods sold	512.8		498		966.1	977.3
Gross profit	286.7		282.6		522.3	535.9
Selling, general and administrative expenses	132.2		140.9		279.5	282.7
Research and development expenses	20.7		19.1		41.4	37.9
Operating income	133.8		122.6		201.4	215.3
(Earnings) loss from continuing operations of investment in subsidiaries			0		0
Other (income) expense:
Loss on sale of business	0.1		0.9		(3.4)	6.2
Loss on early extinguishment of debt	0		(17.1)		0	(17.1)
Net interest (income) expense	9.4		10.1		16.7	23.6
Other Income	(12.9)		(4.2)		(12.3)	(3.8)
Income from continuing operations before income taxes	137.2		98.7		200.4	172.2
Provision for income taxes	22.1		20.8		32.9	35.9
Net income from continuing operations	115.1		77.9		167.5	136.3
(Loss) income from discontinued operations, net of tax	(0.8)		(36.4)		(1.9)	8.1
(Loss) earnings from discontinued operations of investment in subsidiaries			0		0
Comprehensive income, net of tax
Net income	114.3	$ 51.3	41.5	$ 102.9	165.6	144.4
Changes in cumulative translation adjustment	(0.9)		22.8		(2.5)	25.2
Changes in market value of derivative financial instruments, net of tax	(3.4)		4.1		0.9	0.3
Comprehensive income	$ 110		68.4		164	$ 169.9
Parent Company Guarantor
Condensed Financial Statements, Captions [Line Items]
Net sales			0		0
Cost of goods sold			0		0
Gross profit			0		0
Selling, general and administrative expenses			8.1		5.7
Research and development expenses			0		0
Operating income			(8.1)		(5.7)
(Earnings) loss from continuing operations of investment in subsidiaries			(88.5)		(173.2)
Other (income) expense:
Loss on sale of business			0		0
Loss on early extinguishment of debt			0
Net interest (income) expense			0		0
Other Income			0		0
Income from continuing operations before income taxes			80.4		167.5
Provision for income taxes			2.5		0
Net income from continuing operations			77.9		167.5
(Loss) income from discontinued operations, net of tax			0		0
(Loss) earnings from discontinued operations of investment in subsidiaries			(36.4)		(1.9)
Comprehensive income, net of tax
Net income			41.5		165.6
Changes in cumulative translation adjustment			22.8		(2.5)
Changes in market value of derivative financial instruments, net of tax			4.1		0.9
Comprehensive income			68.4		164
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net sales			0		0
Cost of goods sold			0		0
Gross profit			0		0
Selling, general and administrative expenses			0		0.2
Research and development expenses			0		0
Operating income			0		(0.2)
(Earnings) loss from continuing operations of investment in subsidiaries			(88.1)		(175.4)
Other (income) expense:
Loss on sale of business			0		0
Loss on early extinguishment of debt			0
Net interest (income) expense			(0.4)		2
Other Income			0		0
Income from continuing operations before income taxes			88.5		173.2
Provision for income taxes			0		0
Net income from continuing operations			88.5		173.2
(Loss) income from discontinued operations, net of tax			0		0
(Loss) earnings from discontinued operations of investment in subsidiaries			(36.4)		(1.9)
Comprehensive income, net of tax
Net income			52.1		171.3
Changes in cumulative translation adjustment			22.8		(2.5)
Changes in market value of derivative financial instruments, net of tax			4.1		0.9
Comprehensive income			79		169.7
Subsidiary Issuer
Condensed Financial Statements, Captions [Line Items]
Net sales			0		0
Cost of goods sold			0		0
Gross profit			0		0
Selling, general and administrative expenses			0.4		0.8
Research and development expenses			0		0
Operating income			(0.4)		(0.8)
(Earnings) loss from continuing operations of investment in subsidiaries			(138.1)		(176.8)
Other (income) expense:
Loss on sale of business			0		0
Loss on early extinguishment of debt			(17.1)
Net interest (income) expense			7.3		0.6
Other Income			0		0
Income from continuing operations before income taxes			113.3		175.4
Provision for income taxes			0		0
Net income from continuing operations			113.3		175.4
(Loss) income from discontinued operations, net of tax			0		0
(Loss) earnings from discontinued operations of investment in subsidiaries			(36.4)		(1.9)
Comprehensive income, net of tax
Net income			76.9		173.5
Changes in cumulative translation adjustment			22.8		(2.5)
Changes in market value of derivative financial instruments, net of tax			4.1		0.9
Comprehensive income			103.8		171.9
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net sales			780.6		1,488.4
Cost of goods sold			498		966.1
Gross profit			282.6		522.3
Selling, general and administrative expenses			132.4		272.8
Research and development expenses			19.1		41.4
Operating income			131.1		208.1
(Earnings) loss from continuing operations of investment in subsidiaries			0		0
Other (income) expense:
Loss on sale of business			0.9		(3.4)
Loss on early extinguishment of debt			0
Net interest (income) expense			3.2		14.1
Other Income			(4.2)		(12.3)
Income from continuing operations before income taxes			131.2		209.7
Provision for income taxes			18.3		32.9
Net income from continuing operations			112.9		176.8
(Loss) income from discontinued operations, net of tax			(36.4)		(1.9)
(Loss) earnings from discontinued operations of investment in subsidiaries			0		0
Comprehensive income, net of tax
Net income			76.5		174.9
Changes in cumulative translation adjustment			22.8		(2.5)
Changes in market value of derivative financial instruments, net of tax			4.1		0.9
Comprehensive income			103.4		173.3
Consolidation, Eliminations
Condensed Financial Statements, Captions [Line Items]
Net sales			0		0
Cost of goods sold			0		0
Gross profit			0		0
Selling, general and administrative expenses			0		0
Research and development expenses			0		0
Operating income			0		0
(Earnings) loss from continuing operations of investment in subsidiaries			314.7		525.4
Other (income) expense:
Loss on sale of business			0		0
Loss on early extinguishment of debt			0
Net interest (income) expense			0		0
Other Income			0		0
Income from continuing operations before income taxes			(314.7)		(525.4)
Provision for income taxes			0		0
Net income from continuing operations			(314.7)		(525.4)
(Loss) income from discontinued operations, net of tax			0		0
(Loss) earnings from discontinued operations of investment in subsidiaries			109.2		5.7
Comprehensive income, net of tax
Net income			(205.5)		(519.7)
Changes in cumulative translation adjustment			(68.4)		7.5
Changes in market value of derivative financial instruments, net of tax			(12.3)		(2.7)
Comprehensive income			$ (286.2)		$ (514.9)

Supplemental Guarantor Inform_4

Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 80.5		$ 74.3	$ 78.7		$ 86.3
Accounts and notes receivable, net	459.6		488.2
Inventories	396.7		387.5
Other current assets	104.7		89.4
Total current assets	1,041.5		1,039.4
Property, plant and equipment, net	280.3		272.6
Other assets
Investments in subsidiaries	0		0
Goodwill	2,287.5		2,072.7
Intangibles, net	354.2		276.3
Other non-current assets	206.5		145.5
Total other assets	2,848.2		2,494.5
Total assets	4,170		3,806.5
Current liabilities
Accounts payable	261.7		378.6
Employee compensation and benefits	68.7		111.7
Other current liabilities	379.8		328.4
Total current liabilities	710.2		818.7
Other liabilities
Long-term debt	1,215.1		787.6
Pension and other post-retirement compensation and benefits	89.2		90
Deferred tax liabilities	119.8		105.9
Other non-current liabilities	229.1		168.2
Total liabilities	2,363.4		1,970.4
Equity
Total equity	1,806.6	$ 1,870.4	1,836.1	1,888.9	$ 4,719.7	5,037.8
Total liabilities and equity	4,170		3,806.5
Parent Company Guarantor
Current assets
Cash and cash equivalents	0.3		0.1	0.1		0
Accounts and notes receivable, net	1.2		4.6
Inventories	0		0
Other current assets	2.9		3.4
Total current assets	4.4		8.1
Property, plant and equipment, net	0		0
Other assets
Investments in subsidiaries	1,969.2		1,903.8
Goodwill	0		0
Intangibles, net	0		0
Other non-current assets	22.3		23.3
Total other assets	1,991.5		1,927.1
Total assets	1,995.9		1,935.2
Current liabilities
Accounts payable	6.1		0.9
Employee compensation and benefits	0.2		0.2
Other current liabilities	33.7		47.6
Total current liabilities	40		48.7
Other liabilities
Long-term debt	128.8		29.9
Pension and other post-retirement compensation and benefits	0		0
Deferred tax liabilities	0		0
Other non-current liabilities	20.5		20.5
Total liabilities	189.3		99.1
Equity
Total equity	1,806.6		1,836.1
Total liabilities and equity	1,995.9		1,935.2
Guarantor Subsidiaries
Current assets
Cash and cash equivalents	0		0	0		0
Accounts and notes receivable, net	0		0
Inventories	0		0
Other current assets	0		0
Total current assets	0		0
Property, plant and equipment, net	0		0
Other assets
Investments in subsidiaries	1,968.7		2,036.1
Goodwill	0		0
Intangibles, net	0		0
Other non-current assets	1		0
Total other assets	1,969.7		2,036.1
Total assets	1,969.7		2,036.1
Current liabilities
Accounts payable	0		0
Employee compensation and benefits	0		0
Other current liabilities	0.5		1.5
Total current liabilities	0.5		1.5
Other liabilities
Long-term debt	0		130.8
Pension and other post-retirement compensation and benefits	0		0
Deferred tax liabilities	0		0
Other non-current liabilities	0		0
Total liabilities	0.5		132.3
Equity
Total equity	1,969.2		1,903.8
Total liabilities and equity	1,969.7		2,036.1
Subsidiary Issuer
Current assets
Cash and cash equivalents	0.1		0.1	3.2		0
Accounts and notes receivable, net	1.1		0
Inventories	0		0
Other current assets	0.1		2.2
Total current assets	1.3		2.3
Property, plant and equipment, net	0		0
Other assets
Investments in subsidiaries	2,719.8		2,675.7
Goodwill	0		0
Intangibles, net	0		0
Other non-current assets	1,591.5		696.1
Total other assets	4,311.3		3,371.8
Total assets	4,312.6		3,374.1
Current liabilities
Accounts payable	0.1		0
Employee compensation and benefits	0		0
Other current liabilities	7.7		4.4
Total current liabilities	7.8		4.4
Other liabilities
Long-term debt	2,336.3		1,333.9
Pension and other post-retirement compensation and benefits	0		0
Deferred tax liabilities	0		0
Other non-current liabilities	0		0
Total liabilities	2,344.1		1,338.3
Equity
Total equity	1,968.5		2,035.8
Total liabilities and equity	4,312.6		3,374.1
Non-Guarantor Subsidiaries
Current assets
Cash and cash equivalents	80.1		74.1	75.4		86.3
Accounts and notes receivable, net	458.9		483.6
Inventories	396.7		387.5
Other current assets	101.7		99.2
Total current assets	1,037.4		1,044.4
Property, plant and equipment, net	280.3		272.6
Other assets
Investments in subsidiaries	0		0
Goodwill	2,287.5		2,072.7
Intangibles, net	354.2		276.3
Other non-current assets	184.2		729.7
Total other assets	2,825.9		3,078.7
Total assets	4,143.6		4,395.7
Current liabilities
Accounts payable	257.1		377.7
Employee compensation and benefits	68.5		111.5
Other current liabilities	337.9		290.3
Total current liabilities	663.5		779.5
Other liabilities
Long-term debt	342.5		596.6
Pension and other post-retirement compensation and benefits	89.2		90
Deferred tax liabilities	119.8		105.9
Other non-current liabilities	208.6		147.7
Total liabilities	1,423.6		1,719.7
Equity
Total equity	2,720		2,676
Total liabilities and equity	4,143.6		4,395.7
Consolidation, Eliminations
Current assets
Cash and cash equivalents	0		0	$ 0		$ 0
Accounts and notes receivable, net	(1.6)		0
Inventories	0		0
Other current assets	0		(15.4)
Total current assets	(1.6)		(15.4)
Property, plant and equipment, net	0		0
Other assets
Investments in subsidiaries	(6,657.7)		(6,615.6)
Goodwill	0		0
Intangibles, net	0		0
Other non-current assets	(1,592.5)		(1,303.6)
Total other assets	(8,250.2)		(7,919.2)
Total assets	(8,251.8)		(7,934.6)
Current liabilities
Accounts payable	(1.6)		0
Employee compensation and benefits	0		0
Other current liabilities	0		(15.4)
Total current liabilities	(1.6)		(15.4)
Other liabilities
Long-term debt	(1,592.5)		(1,303.6)
Pension and other post-retirement compensation and benefits	0		0
Deferred tax liabilities	0		0
Other non-current liabilities	0		0
Total liabilities	(1,594.1)		(1,319)
Equity
Total equity	(6,657.7)		(6,615.6)
Total liabilities and equity	$ (8,251.8)		$ (7,934.6)

Supplemental Guarantor Inform_5

Supplemental Guarantor Information - Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating activities
Net cash provided by (used for) operating activities	$ 96.7	$ 171.9
Investing activities
Capital expenditures	(29.8)	(20.3)
Proceeds from sale of property and equipment	0.4	(0.5)
Proceeds from (payments due to) the sale of businesses, net	0.7	(12.8)
Acquisitions, net of cash acquired	(284.5)	(0.9)
Net intercompany loan activity	0	0
Payments for (Proceeds from) Other Investing Activities	(1.5)	0
Net cash provided by (used for) investing activities of continuing operations	(314.7)	(34.5)
Net cash used for investing activities of discontinued operations	0	(7.1)
Net cash used for investing activities	(314.7)	(41.6)
Financing activities
Net receipts of commercial paper and revolving long-term debt	32.9	30.2
Proceeds from long-term debt	400	0
Repayments of long-term debt	0	675.1
Debt issuance costs	5.7	0
Premium paid on early extinguishment of debt	0	16
Cash Divested from Deconsolidation	0	(74.2)
Distribution of cash from nVent	0	993.6
Net change in advances to subsidiaries	0	0
Shares issued to employees, net of shares withheld	7.2	6.3
Repurchases of ordinary shares	(150)	(300)
Dividends paid	(62)	(125.9)
Net cash provided by financing activities of continuing operations	222.4	(161.1)
Change in cash held for sale	0	27
Effect of exchange rate changes on cash and cash equivalents	1.8	(3.8)
Change in cash and cash equivalents	6.2	(7.6)
Cash and cash equivalents, beginning of period	74.3	86.3
Cash and cash equivalents, end of period	80.5	78.7
Parent Company Guarantor
Operating activities
Net cash provided by (used for) operating activities	157.2	101.1
Investing activities
Capital expenditures	0	0
Proceeds from sale of property and equipment	0	0
Proceeds from (payments due to) the sale of businesses, net	0	0
Acquisitions, net of cash acquired	0	0
Net intercompany loan activity	0	30.8
Payments for (Proceeds from) Other Investing Activities	0
Net cash provided by (used for) investing activities of continuing operations		30.8
Net cash used for investing activities of discontinued operations		0
Net cash used for investing activities	0	30.8
Financing activities
Net receipts of commercial paper and revolving long-term debt	0	0
Proceeds from long-term debt	0
Repayments of long-term debt		0
Debt issuance costs	0
Premium paid on early extinguishment of debt		0
Cash Divested from Deconsolidation		0
Distribution of cash from nVent		0
Net change in advances to subsidiaries	47.8	287.8
Shares issued to employees, net of shares withheld	7.2	6.3
Repurchases of ordinary shares	(150)	(300)
Dividends paid	(62)	(125.9)
Net cash provided by financing activities of continuing operations	(157)	(131.8)
Change in cash held for sale		0
Effect of exchange rate changes on cash and cash equivalents	0	0
Change in cash and cash equivalents	0.2	0.1
Cash and cash equivalents, beginning of period	0.1	0
Cash and cash equivalents, end of period	0.3	0.1
Guarantor Subsidiaries
Operating activities
Net cash provided by (used for) operating activities	170.4	162.2
Investing activities
Capital expenditures	0	0
Proceeds from sale of property and equipment	0	0
Proceeds from (payments due to) the sale of businesses, net	0	0
Acquisitions, net of cash acquired	0	0
Net intercompany loan activity	0	59.9
Payments for (Proceeds from) Other Investing Activities	0
Net cash provided by (used for) investing activities of continuing operations		59.9
Net cash used for investing activities of discontinued operations		0
Net cash used for investing activities	0	59.9
Financing activities
Net receipts of commercial paper and revolving long-term debt	0	0
Proceeds from long-term debt	0
Repayments of long-term debt		0
Debt issuance costs	0
Premium paid on early extinguishment of debt		0
Cash Divested from Deconsolidation		0
Distribution of cash from nVent		0
Net change in advances to subsidiaries	(170.4)	(222.1)
Shares issued to employees, net of shares withheld	0	0
Repurchases of ordinary shares	0	0
Dividends paid	0	0
Net cash provided by financing activities of continuing operations	(170.4)	(222.1)
Change in cash held for sale		0
Effect of exchange rate changes on cash and cash equivalents	0	0
Change in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	0	0
Subsidiary Issuer
Operating activities
Net cash provided by (used for) operating activities	179.1	177.5
Investing activities
Capital expenditures	0	0
Proceeds from sale of property and equipment	0	0
Proceeds from (payments due to) the sale of businesses, net	0	0
Acquisitions, net of cash acquired	0	0
Net intercompany loan activity	(604.3)	22.5
Payments for (Proceeds from) Other Investing Activities	0
Net cash provided by (used for) investing activities of continuing operations		22.5
Net cash used for investing activities of discontinued operations		0
Net cash used for investing activities	(604.3)	22.5
Financing activities
Net receipts of commercial paper and revolving long-term debt	55	43.8
Proceeds from long-term debt	400
Repayments of long-term debt		675.1
Debt issuance costs	5.7
Premium paid on early extinguishment of debt		16
Cash Divested from Deconsolidation		0
Distribution of cash from nVent		993.6
Net change in advances to subsidiaries	(24.3)	(517)
Shares issued to employees, net of shares withheld	0	0
Repurchases of ordinary shares	0	0
Dividends paid	0	0
Net cash provided by financing activities of continuing operations	425	(170.7)
Change in cash held for sale		0
Effect of exchange rate changes on cash and cash equivalents	0.2	(26.1)
Change in cash and cash equivalents	0	3.2
Cash and cash equivalents, beginning of period	0.1	0
Cash and cash equivalents, end of period	0.1	3.2
Non-Guarantor Subsidiaries
Operating activities
Net cash provided by (used for) operating activities	104.3	272.6
Investing activities
Capital expenditures	(29.8)	(20.3)
Proceeds from sale of property and equipment	0.4	(0.5)
Proceeds from (payments due to) the sale of businesses, net	0.7	(12.8)
Acquisitions, net of cash acquired	(284.5)	(0.9)
Net intercompany loan activity	(21.9)	490.6
Payments for (Proceeds from) Other Investing Activities	1.5
Net cash provided by (used for) investing activities of continuing operations		456.1
Net cash used for investing activities of discontinued operations		(7.1)
Net cash used for investing activities	(336.6)	449
Financing activities
Net receipts of commercial paper and revolving long-term debt	(22.1)	(13.6)
Proceeds from long-term debt	0
Repayments of long-term debt		0
Debt issuance costs	0
Premium paid on early extinguishment of debt		0
Cash Divested from Deconsolidation		(74.2)
Distribution of cash from nVent		0
Net change in advances to subsidiaries	258.8	(694)
Shares issued to employees, net of shares withheld	0	0
Repurchases of ordinary shares	0	0
Dividends paid	0	0
Net cash provided by financing activities of continuing operations	236.7	(781.8)
Change in cash held for sale		27
Effect of exchange rate changes on cash and cash equivalents	1.6	22.3
Change in cash and cash equivalents	6	(10.9)
Cash and cash equivalents, beginning of period	74.1	86.3
Cash and cash equivalents, end of period	80.1	75.4
Consolidation, Eliminations
Operating activities
Net cash provided by (used for) operating activities	(514.3)	(541.5)
Investing activities
Capital expenditures	0	0
Proceeds from sale of property and equipment	0	0
Proceeds from (payments due to) the sale of businesses, net	0	0
Acquisitions, net of cash acquired	0	0
Net intercompany loan activity	626.2	(603.8)
Payments for (Proceeds from) Other Investing Activities	0
Net cash provided by (used for) investing activities of continuing operations		(603.8)
Net cash used for investing activities of discontinued operations		0
Net cash used for investing activities	626.2	(603.8)
Financing activities
Net receipts of commercial paper and revolving long-term debt	0	0
Proceeds from long-term debt	0
Repayments of long-term debt		0
Debt issuance costs	0
Premium paid on early extinguishment of debt		0
Cash Divested from Deconsolidation		0
Distribution of cash from nVent		0
Net change in advances to subsidiaries	(111.9)	1,145.3
Shares issued to employees, net of shares withheld	0	0
Repurchases of ordinary shares	0	0
Dividends paid	0	0
Net cash provided by financing activities of continuing operations	(111.9)	1,145.3
Change in cash held for sale		0
Effect of exchange rate changes on cash and cash equivalents	0	0
Change in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	$ 0	$ 0

Supplemental Guarantor Inform_6

Supplemental Guarantor Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2019
Subsidiary Issuer
Condensed Financial Statements, Captions [Line Items]
Ownership percentage	100.00%

Uncategorized Items - pnr-20190

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (214,000,000)
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (214,000,000)