Xylem (XYL) 10-Q 1 Aug 19 2019 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2019	Jul. 26, 2019
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	1-35229
Entity Registrant Name	Xylem Inc.
Entity Incorporation, State or Country Code	IN
Entity Tax Identification Number	45-2080495
Entity Address, Address Line One	1 International Drive
Entity Address, City or Town	Rye Brook
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10573
City Area Code	914
Local Phone Number	323-5700
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		180,029,106
Entity Shell Company	false
Entity Central Index Key	0001524472
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Common Stock
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	XYL
Security Exchange Name	NYSE
Senior Notes Due 2023, 2.250%
Document Information [Line Items]
Title of 12(b) Security	2.250% Senior Notes due 2023
Trading Symbol	XYL23
Security Exchange Name	NYSE

Condensed Consolidated Income S

Condensed Consolidated Income Statements (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenues	$ 1,345	$ 1,317	$ 2,582	$ 2,534
Cost of revenue	819	798	1,582	1,555
Gross profit	526	519	1,000	979
Selling, general and administrative expenses	294	293	597	589
Research and development expenses	47	50	98	91
Restructuring and asset impairment charges	14	5	25	15
Operating income	171	171	280	284
Interest expense	18	21	36	42
Other non-operating income, net	3	2	5	5
Gain (loss) from sale of business	0	(2)	1	(2)
Income before taxes	156	150	250	245
Income tax expense	17	35	32	51
Net income	$ 139	$ 115	$ 218	$ 194
Earnings per share:
Basic (usd per share)	$ 0.77	$ 0.64	$ 1.21	$ 1.08
Diluted (usd per share)	$ 0.77	$ 0.64	$ 1.20	$ 1.07
Weighted average number of shares:
Basic (in shares)	179,999	179,805	179,872	179,843
Diluted (in shares)	181,153	181,042	181,133	181,203

Condensed Consolidated Statemen

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 139	$ 115	$ 218	$ 194
Other comprehensive income, before tax:
Foreign currency translation adjustment	(18)	(60)	11	(52)
Net change in derivative hedge agreements:
Unrealized loss	0	(9)	(9)	(9)
Amount of loss (gain) reclassified into net income	2	(1)	4	(2)
Net change in postretirement benefit plans:
Amortization of prior service credit	(1)	(1)	(2)	(2)
Amortization of net actuarial loss into net income	3	4	6	7
Settlement/Curtailment	0	0	0	1
Other comprehensive (loss) income, before tax	(14)	(67)	10	(57)
Income tax (benefit) expense related to items of other comprehensive income	(3)	20	1	10
Other comprehensive (loss) income, net of tax	(11)	(87)	9	(67)
Comprehensive income	$ 128	$ 28	$ 227	$ 127

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 383	$ 296
Receivables, less allowances for discounts and doubtful accounts of $31 and $35 in 2019 and 2018, respectively	1,096	1,031
Inventories	604	595
Prepaid and other current assets	175	172
Total current assets	2,258	2,094
Property, plant and equipment, net	661	656
Goodwill	2,999	2,976
Other intangible assets, net	1,211	1,232
Other non-current assets	545	264
Total assets	7,674	7,222
Current liabilities:
Accounts payable	539	586
Accrued and other current liabilities	596	546
Short-term borrowings and current maturities of long-term debt	402	257
Total current liabilities	1,537	1,389
Long-term debt	2,051	2,051
Accrued postretirement benefits	396	400
Deferred income tax liabilities	305	303
Other non-current accrued liabilities	479	297
Total liabilities	4,768	4,440
Commitments and contingencies (Note 19)
Stockholders’ equity:
Common Stock	2	2
Capital in excess of par value	1,975	1,950
Retained earnings	1,770	1,639
Treasury stock – at cost 13.7 shares and 13.2 shares in 2019 and 2018, respectively	(526)	(487)
Accumulated other comprehensive loss	(327)	(336)
Total stockholders’ equity	2,894	2,768
Non-controlling interests	12	14
Total equity	2,906	2,782
Total liabilities and stockholders’ equity	$ 7,674	$ 7,222

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Allowances for discounts and doubtful accounts on receivables	$ 31	$ 35
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	750,000,000	750,000,000
Common Stock, shares issued	193,800,000	192,900,000
Treasury Stock, shares	13,700,000	13,200,000

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating Activities
Net income	$ 218	$ 194
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	58	58
Amortization	69	74
Share-based compensation	16	16
Restructuring and asset impairment charges	25	15
(Gain) loss from sale of businesses	(1)	2
Other, net	4	(7)
Payments for restructuring	(12)	(12)
Changes in assets and liabilities (net of acquisitions):
Changes in receivables	(68)	(68)
Changes in inventories	(10)	(87)
Changes in accounts payable	(23)	54
Other, net	(70)	(38)
Net Cash – Operating activities	206	201
Investing Activities
Capital expenditures	(129)	(111)
Acquisitions of businesses, net of cash acquired	(18)	(430)
Proceeds from sale of business	(2)	0
Other, net	3	4
Net Cash – Investing activities	(146)	(537)
Financing Activities
Short-term debt issued, net	257	437
Short-term debt repaid	(113)	(54)
Repurchase of common stock	(39)	(58)
Proceeds from exercise of employee stock options	8	4
Dividends paid	(87)	(76)
Other, net	(1)	(1)
Net Cash – Financing activities	25	252
Effect of exchange rate changes on cash	2	(9)
Net change in cash and cash equivalents	87	(93)
Cash and cash equivalents at beginning of year	296	414
Cash and cash equivalents at end of period	383	321
Cash paid during the period for:
Interest	45	46
Income taxes (net of refunds received)	$ 74	$ 51

Background and Basis of Present

Background and Basis of Presentation	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Background and Basis of Presentation	Background and Basis of Presentation Background Xylem Inc. (“Xylem” or the “Company”) is a leading equipment and service provider for water and wastewater applications with a broad portfolio of products and services addressing the full cycle of water, from collection, distribution and use to the return of water to the environment. Xylem operates in three segments, Water Infrastructure, Applied Water and Measurement & Control Solutions. See Note 20, "Segment Information" to the condensed consolidated financial statements for further segment background information. Except as otherwise indicated or unless the context otherwise requires, "Xylem," "we," "us," "our" and the "Company" refer to Xylem Inc. and its subsidiaries. Basis of Presentation The interim condensed consolidated financial statements reflect our financial position and results of operations in conformity with accounting principles generally accepted in the United States of America ("GAAP"). All intercompany transactions between our businesses have been eliminated. The unaudited interim condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC") and, in the opinion of management, reflect all adjustments (which include normal recurring adjustments) considered necessary for a fair presentation of the financial position and results of operations for the periods presented. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such SEC rules. We believe that the disclosures made are adequate to make the information presented not misleading. We consistently applied the accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2018 ("2018 Annual Report") in preparing these unaudited condensed consolidated financial statements, with the exception of accounting standard updates described in Note 2. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes included in our 2018 Annual Report. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Estimates are revised as additional information becomes available. Estimates and assumptions are used for, but not limited to, postretirement obligations and assets, revenue recognition, income tax contingency accruals and valuation allowances, goodwill and indefinite lived intangible impairment testing, contingent liabilities and lease accounting. Actual results could differ from these estimates. Our quarterly financial periods end on the Saturday closest to the last day of the calendar quarter, except for the fourth quarter which ends on December 31. For ease of presentation, the condensed consolidated financial statements included herein are described as ending on the last day of the calendar quarter.

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Pronouncements Not Yet Adopted In June 2016, the FASB issued guidance amending the accounting for the impairment of financial instruments, including trade receivables. Under current guidance, credit losses are recognized when the applicable losses have a probable likelihood of occurring and this assessment is based on past events and current conditions. The amended guidance eliminates the “probable” threshold and requires an entity to use a broader range of information, including forecast information when estimating expected credit losses. Generally, this should result in a more timely recognition of credit losses. This guidance is effective for interim and annual periods beginning after December 15, 2019 with early adoption permitted for interim and annual periods beginning after December 15, 2018. The requirements of the amended guidance should be applied using a modified retrospective approach except for debt securities, which require a prospective transition approach. We are evaluating the impact of the guidance on our financial condition and results of operations. Recently Adopted Pronouncements In August 2018, the Financial Accounting Standards Board (“FASB”) issued guidance regarding the accounting for implementation costs of a hosting arrangement that is a service contract. The guidance establishes the requirement to capitalize certain implementation costs incurred in a hosting arrangement that is a service contract, effectively aligning with the requirement to capitalize certain implementation costs incurred to develop or obtain internal-use software. This guidance is effective for interim and annual periods beginning after December 15, 2019 with early adoption permitted. The requirements of the amended guidance may be applied using either a retrospective or prospective approach. We adopted this guidance prospectively as of April 1, 2019. This guidance did not have a material impact on our financial condition and results of operations. In February 2016, the FASB issued guidance amending the accounting for leases. Specifically, the amended guidance requires all lessees to record a lease liability at lease inception, with a corresponding right of use ("ROU") asset, except for short-term leases. Lessor accounting is not fundamentally changed. This amended guidance is effective for interim and annual periods beginning after December 15, 2018 using a modified retrospective approach. Early adoption was permitted. We adopted this guidance as of January 1, 2019 using the modified retrospective approach whereby prior comparative periods were not retrospectively restated in the condensed consolidated financial statements. The adoption of the standard resulted in the recognition of ROU assets and lease liabilities of $267 million and $265 million , respectively, as well as deferred tax assets and deferred tax liabilities of $68 million , as of January 1, 2019, the date of initial application. The guidance did not have a material impact on our Condensed Consolidated Income Statements and Statements of Cash Flow. See Note 9, "Leases" for further details.

Acquisitions and Divestitures

Acquisitions and Divestitures	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures 2019 Acquisitions During the three and six months ended June 30, 2019 we spent approximately $13 million and $18 million net of cash received on acquisition activity, respectively. 2018 Acquisitions and Divestitures Pure Technologies Ltd. On January 31, 2018, we acquired all the issued and outstanding shares of Pure Technologies Ltd. (“Pure”), a leader in intelligent leak detection and condition assessment solutions for water distribution networks for approximately $420 million , net of cash received. Acquisition costs of $4 million were reflected as a component of selling, general and administrative expenses in our Condensed Consolidated Income Statement for the year ended December 31, 2018. Pure’s results of operations were consolidated with the Company effective February 1, 2018 and are reflected in the Measurement & Control Solutions segment. The Pure purchase price allocation as of January 31, 2018 is shown in the following table: (in millions) Amount Cash $ 14 Receivables 23 Inventories 4 Prepaid and other current assets 2 Property, plant and equipment 22 Intangible assets 149 Other long-term assets 1 Accounts payable (3 ) Accrued and other current liabilities (12 ) Deferred income tax liabilities (25 ) Other non-current accrued liabilities (2 ) Total identifiable net assets 173 Goodwill 261 Total consideration $ 434 The fair values of Pure's assets and liabilities were determined based on estimates and assumptions which management believes are reasonable. Goodwill arising from the acquisition consists largely of synergies and economies of scale expected from combining the operations of Pure and Xylem. All of the goodwill was assigned to the Measurement & Control Solutions segment and is not deductible for tax purposes. The estimate of the fair value of Pure identifiable intangible assets was determined primarily using the “income approach,” which requires a forecast of all of the expected future cash flows either through the use of the multi-period excess earnings method or the relief-from-royalty method. Some of the more significant assumptions inherent in the development of intangible asset values include: the amount and timing of projected future cash flows, the discount rate selected to measure the risks inherent in the future cash flows, the assessment of the intangible asset’s life cycle, as well as other factors. The following table summarizes key information underlying identifiable intangible assets related to the Pure acquisition: Category Life Amount (in millions) Customer Relationships 17 - 18 years $ 84 Technology 3 - 10 years 38 Tradenames 20 years 21 Internally Developed Software 3 years 6 Total $ 149 The following table summarizes, on an unaudited pro forma basis, the condensed combined results of operations of the Company for the three and six month periods ended June 30, 2018 assuming the acquisition of Pure was made on January 1, 2017: (in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Revenue N/A $ 2,539 Net income N/A $ 191 The foregoing unaudited pro forma results are for informational purposes only and are not necessarily indicative of the actual results of operations that might have occurred had the acquisition occurred on January 1, 2017, nor are they necessarily indicative of future results. The pro forma financial information includes the impact of purchase accounting and other nonrecurring items directly attributable to the acquisition, which include: • Amortization expense of acquired intangibles • Adjustments to the depreciation of property, plant and equipment reflecting the impact of the calculated fair value of those assets in accordance with purchase accounting • Adjustments to interest expense to remove historical Pure interest costs and reflect Xylem's current debt profile • The related tax impact of the above referenced adjustments The pro forma results do not include any cost savings or operational synergies that may be generated or realized due to the acquisition of Pure. During the three months ended June 30, 2018 Pure had revenue and operating income of $26 million and less than $1 million , respectively. During the five months ended June 30, 2018 Pure had revenue and an operating loss of $42 million and $2 million , respectively. Other Acquisition Activity During the three months ended June 30, 2018 we had no acquisition activity. During the six months ended June 30, 2018 we spent approximately $10 million net of cash received on other acquisition activity.

Restructuring Charges

Restructuring Charges	6 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges From time to time, the Company will incur costs related to restructuring actions in order to optimize our cost base and more strategically position ourselves based on the economic environment and customer demand. During the three and six months ended June 30, 2019 , we recognized restructuring charges of $14 million and $22 million , respectively. We incurred these charges primarily as a continuation of our efforts to reposition our European and North American businesses to optimize our cost structure and improve our operational efficiency and effectiveness. The charges included the reduction of headcount and consolidation of facilities within our Measurement & Control Solutions and Water Infrastructure segments, as well as headcount reductions within our Applied Water segment. During the three and six months ended June 30, 2018 , we recognized restructuring charges of $5 million and $15 million , respectively. We incurred these charges primarily as a continuation of our efforts to reposition our European and North American businesses to optimize our cost structure and improve our operational efficiency and effectiveness. The charges included the reduction of headcount and consolidation of facilities within our Measurement & Control Solutions and Water Infrastructure segments, as well as headcount reductions within our Applied Water segment. The following table presents the components of restructuring expense and asset impairment charges: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 By component: Severance and other charges $ 13 $ 5 $ 20 $ 14 Lease related charges — — 1 1 Other restructuring charges 1 — 1 — Total restructuring charges $ 14 $ 5 $ 22 $ 15 Asset impairment — — 3 — Total restructuring and asset impairment charges $ 14 $ 5 $ 25 $ 15 By segment: Water Infrastructure $ 7 $ 3 $ 11 $ 6 Applied Water 2 — 2 1 Measurement & Control Solutions 5 2 12 8 The following table displays a rollforward of the restructuring accruals, presented on our Condensed Consolidated Balance Sheets within accrued and other current liabilities, for the six months ended June 30, 2019 and 2018 : (in millions) 2019 2018 Restructuring accruals - January 1 $ 5 $ 7 Restructuring charges 22 15 Cash payments (12 ) (12 ) Foreign currency and other (1 ) — Restructuring accruals - June 30 $ 14 $ 10 By segment: Water Infrastructure $ 4 $ 2 Applied Water 2 1 Measurement & Control Solutions 5 4 Regional selling locations (a) 3 2 Corporate and other — 1 (a) Regional selling locations consist primarily of selling and marketing organizations that incurred restructuring expense which was allocated to the segments. The liabilities associated with restructuring expense were not allocated to the segments. The following is a rollforward for the six months ended June 30, 2019 and 2018 of employee position eliminations associated with restructuring activities: 2019 2018 Planned reductions - January 1 69 47 Additional planned reductions 350 155 Actual reductions and reversals (298 ) (103 ) Planned reductions - June 30 121 99 The following table presents expected restructuring spend for actions commenced as of June 30, 2019: (in millions) Water Infrastructure Applied Water Measurement & Control Solutions Corporate Total Actions Commenced in 2019: Total expected costs $ 17 $ 4 $ 8 $ — $ 29 Costs incurred during Q1 2019 3 — 3 — 6 Costs incurred during Q2 2019 7 2 5 — 14 Total expected costs remaining $ 7 $ 2 $ — $ — $ 9 Actions Commenced in 2018: Total expected costs $ 8 $ 1 $ 7 $ — $ 16 Costs incurred during 2018 7 1 7 — 15 Costs incurred during Q1 2019 1 — — — 1 Costs incurred during Q2 2019 — — — — — Total expected costs remaining $ — $ — $ — $ — $ — Actions Commenced in 2017: Total expected costs $ 16 $ 8 $ 4 $ — $ 28 Costs incurred during 2017 5 4 2 — 11 Costs incurred during 2018 2 1 1 — 4 Costs incurred during Q1 2019 — — 1 — 1 Costs incurred during Q2 2019 — — — — — Total expected costs remaining $ 9 $ 3 $ — $ — $ 12 The Water Infrastructure, Applied Water, and Measurement & Control Solutions actions commenced in 2019 consist primarily of severance charges and are expected to continue through the end of 2019. The Water Infrastructure, Applied Water, and Measurement & Control Solutions actions commenced in 2018 consist primarily of severance charges and are complete. The Water Infrastructure, Applied Water and Measurement & Control Solutions actions commenced in 2017 consist primarily of severance charges and are expected to continue through the fourth quarter of 2020. Asset Impairment During the first quarter of 2019 we determined that certain assets within our Measurement and Control Solutions segment, including a customer relationship, were impaired. Accordingly we recognized an impairment charge of $3 million . Refer to Note 10 , "Goodwill and Other Intangible Assets," for additional information.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Disaggregation of Revenue The following table illustrates the sources of revenue: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Revenue from contracts with customers $ 1,281 $ 1,258 $ 2,459 $ 2,420 Lease Revenue 64 59 123 114 Total $ 1,345 $ 1,317 $ 2,582 $ 2,534 The following table reflects revenue from contracts with customers by application: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Water Infrastructure Transport $ 396 $ 387 $ 742 $ 734 Treatment 101 100 178 178 Applied Water Building Services 216 206 429 400 Industrial Water 178 182 344 354 Measurement and Control Solutions Water 195 175 394 347 Energy 85 84 158 164 Software as a Service/Other 25 35 49 69 Test 85 89 165 174 Total $ 1,281 $ 1,258 $ 2,459 $ 2,420 The following table reflects revenue from contracts with customers by geographical region: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Water Infrastructure United States $ 160 $ 135 $ 293 $ 248 Europe 179 191 339 368 Emerging Markets & Other 158 161 288 296 Applied Water United States 212 198 413 386 Europe 92 100 186 198 Emerging Markets & Other 90 90 174 170 Measurement and Control Solutions United States 252 230 488 436 Europe 64 71 136 155 Emerging Markets & Other 74 82 142 163 Total $ 1,281 $ 1,258 $ 2,459 $ 2,420 Contract Balances We receive payments from customers based on a billing schedule as established in our contracts. Contract assets relate to costs incurred to perform in advance of scheduled billings. Contract liabilities relate to payments received in advance of performance under the contracts. Changes in contract assets and liabilities are due to our performance under the contract. The table below provides contract assets, contract liabilities, and significant changes in contract assets and liabilities: (in millions) Contract Assets (a) Contract Liabilities Balance at January 1, 2018 $ 89 $ 107 Additions, net 51 86 Revenue recognized from opening balance — (74 ) Billings (54 ) — Other (3 ) (5 ) Balance at June 30, 2018 $ 83 $ 114 Balance at January 1, 2019 $ 96 $ 113 Additions, net 55 84 Revenue recognized from opening balance — (66 ) Billings (50 ) — Other 10 — Balance at June 30, 2019 $ 111 $ 131 (a) Excludes receivable balances which are disclosed on the balance sheet Performance obligations Delivery schedules vary from customer to customer based upon their requirements. Typically, large projects require longer lead production cycles and delays can occur from time to time. As of June 30, 2019, the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied or partially unsatisfied for contracts with performance obligations, amount to $340 million . We expect to recognize the majority of revenue upon the completion of satisfying these performance obligations in the following 60

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Our quarterly provision for income taxes is measured using an estimated annual effective tax rate, adjusted for discrete items within periods presented. The comparison of our effective tax rate between periods is significantly impacted by the level and mix of earnings and losses by tax jurisdiction and discrete items. The income tax provision for the three months ended June 30, 2019 was $17 million resulting in an effective tax rate of 10.5% , compared to $35 million resulting in an effective tax rate of 23.2% for the same period in 2018 . The income tax provision for the six months ended June 30, 2019 was $32 million resulting in an effective tax rate of 12.8% , compared to $51 million resulting in an effective tax rate of 20.8% for the same period in 2018. The effective tax rate for the three and six month periods ended June 30, 2019 is lower than the same periods in 2018 primarily due to changes in tax law in Switzerland in 2019 offset in part by the settlement of tax examinations in 2018. Unrecognized Tax Benefits We recognize tax benefits from uncertain tax positions only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities or litigation, based on the technical merits of the position. The tax benefits recognized in the condensed consolidated financial statements from such positions are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution. The amount of unrecognized tax benefits at June 30, 2019 was $127 million, as compared to $136 million at December 31, 2018, which if ultimately recognized will reduce our effective tax rate. We believe that it is reasonably possible that the unrecognized tax benefits will be reduced by approximately $3 million within the next 12 months as a result of the expiration of certain statutes of limitations. We classify interest expense relating to unrecognized tax benefits as a component of other non-operating expense, net, and tax penalties as a component of income tax expense in our Condensed Consolidated Income Statements. As of June 30, 2019 , we had $8 million of interest accrued for unrecognized tax benefits. In June 2019, Xylem’s Swedish subsidiary received a tax assessment for the 2013 tax year related to the tax treatment of an intercompany transfer of certain intellectual property that was made in connection with a reorganization of our European businesses. The assessment asserts an aggregate amount of approximately $80 million

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following is a reconciliation of the shares used in calculating basic and diluted net earnings per share: Three Months Ended Six Months Ended June 30, June 30, 2019 2018 2019 2018 Net income (in millions) $ 139 $ 115 $ 218 $ 194 Shares (in thousands): Weighted average common shares outstanding 179,964 179,770 179,842 179,814 Add: Participating securities (a) 35 35 30 29 Weighted average common shares outstanding — Basic 179,999 179,805 179,872 179,843 Plus incremental shares from assumed conversions: (b) Dilutive effect of stock options 832 886 834 907 Dilutive effect of restricted stock units and performance share units 322 351 427 453 Weighted average common shares outstanding — Diluted 181,153 181,042 181,133 181,203 Basic earnings per share $ 0.77 $ 0.64 $ 1.21 $ 1.08 Diluted earnings per share $ 0.77 $ 0.64 $ 1.20 $ 1.07 (a) Restricted stock unit awards containing rights to non-forfeitable dividends that participate in undistributed earnings with common shareholders are considered participating securities for purposes of computing earnings per share. (b) Incremental shares from stock options, restricted stock units and performance share units are computed by the treasury stock method. The weighted average shares listed below were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented or were otherwise excluded under the treasury stock method. The treasury stock method calculates dilution assuming the exercise of all in-the-money options and vesting of restricted stock units and performance share units, reduced by the repurchase of shares with the proceeds from the assumed exercises and unrecognized compensation expense for outstanding awards. Performance share units will be included in the treasury stock calculation of diluted earnings per share upon achievement of underlying performance or market conditions at the end of the reporting period. See Note 16 , "Share-Based Compensation Plans" to the condensed consolidated financial statements for further detail on the performance share units. Three Months Ended Six Months Ended June 30, June 30, (in thousands) 2019 2018 2019 2018 Stock options 1,418 1,360 1,406 1,289 Restricted stock units 382 385 365 339 Performance share units 455 517 463 527

Inventories

Inventories	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	Inventories The components of total inventories are summarized as follows: (in millions) June 30, December 31, Finished goods $ 243 $ 248 Work in process 54 45 Raw materials 307 302 Total inventories $ 604 $ 595

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases	Leases As discussed in Note 2, “Recently Issued Accounting Pronouncements,” Xylem adopted the new guidance on accounting for leases. Leasing Arrangements We lease certain offices, manufacturing buildings, transportation equipment, machinery, computers and other equipment. Our most significant lease liabilities relate to real estate leases. These leases include renewal, termination or purchase options, and we have assessed these to determine whether it is reasonably certain for us to exercise any of the previously mentioned options. All periods relating to options that are reasonably certain to be exercised have been included in the lease term of the respective leases. We have recorded ROU assets for lease arrangements that are reasonably certain to extend beyond 12 months. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments under the lease. ROU assets and liabilities are recognized at lease commencement date based on the present value of lease payments over the lease term. The implicit rate within our leases is generally not determinable, and we use our incremental borrowing rate at the lease commencement date to determine the net present value of lease payments. The determination of the appropriate incremental borrowing rate requires judgment. We determine the appropriate incremental borrowing rate for each lease using our current borrowing rate, adjusted for various factors including geographic region, level of collateralization and term, to align with the term of the underlying lease. Many of our leases are subject to payment adjustments to reflect annual changes in price indexes, such as the Consumer Price Index. While associated lease liabilities are not re-measured as a result of changes in the applicable price indexes, changes to required lease payments are treated as variable lease payments and recognized in the period in which the obligation for those payments was incurred. Leases with a lease term of 12 months or less, including renewal options that are reasonably certain to be exercised, that also do not include an option to purchase the underlying asset that is reasonably certain of exercise, are not recorded on the balance sheet. Instead, lease payments for these leases are recognized as a lease cost on a straight-line basis over the lease term. We elected the package of practical expedients, which among other things, does not require reassessment of lease classification. Additionally, we have made an accounting policy election whereby we chose not to separate non-lease components from lease components in agreements in all leases which we are the lessee. We did not identify any events or conditions during the three and six month periods ended June 30, 2019 to indicate that a reassessment or re-measurement of our existing leases was required. There were also no impairment indicators identified during the three and six month periods ended June 30, 2019 that required an impairment test for the Company’s ROU assets or other long-lived assets in accordance with ASC 360-10. Our current lease liabilities of $63 million are included in "Accrued and other current liabilities" and our non-current lease liabilities of $193 million are included in "Other non-current accrued liabilities" as of June 30, 2019. Our ROU asset balances are included in "Other non-current assets". The net balance of our ROU assets as of June 30, 2019 was $257 million . These balances include an immaterial amount related to finance leases. The components of our lease cost were as follows: (in millions) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Lease cost Operating lease cost $ 20 $ 38 Short-term lease cost 2 5 Variable lease cost 4 10 Total lease cost $ 26 $ 53 The supplemental cash flow information related to leases are as follows: (in millions) Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 37 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 16 Information relating to the lease term and discount rate are as follows: Six Months Ended June 30, 2019 Weighted-average remaining lease term (years) Operating leases 6 Weighted-average discount rate Operating leases 2.7% As of June 30, 2019, the maturities of operating lease liabilities were as follows: (in millions) 2019 $ 36 2020 61 2021 45 2022 33 2023 25 2024 20 Thereafter 57 Total lease payments 277 Less: Imputed interest (22 ) Total $ 255 Disclosures related to periods prior to adoption of the New Lease Standard as reported and provided in our December 31, 2018 Form 10-K. As of December 31, 2018, we were obligated to make minimum future rental payments under operating leases as follows: (in millions) 2019 $ 76 2020 61 2021 43 2022 33 2023 22 Thereafter 64 Total lease payments 299 Lessor arrangements In addition to manufacturing and selling equipment, we also lease out equipment to customers in exchange for consideration. These arrangements are generally short term in nature and predominantly involve the rental of pumps and accessories within the Water Infrastructure segment. Rental arrangements generally do not provide the customer the right to purchase the equipment as Xylem’s strategy is to rent these items over their useful lives. Customers may be billed based on daily, weekly or monthly rates depending on the expected rental period. We assessed that these arrangements constitute a lease under ASC 842, and have recognized them as operating leases. In situations where arrangements contain both the sale of products and a leasing component, contract consideration is allocated based on relative standalone selling price. Total revenue from lease arrangements were $64 million and $123 million for the three and six month periods ended June 30, 2019. Our gross assets available for rent and related accumulated amortization were $262 million and $169 million , respectively, as of June 30, 2019. Depreciation expense for these assets were $7 million and $14 million
Leases	As discussed in Note 2, “Recently Issued Accounting Pronouncements,” Xylem adopted the new guidance on accounting for leases. Leasing Arrangements We lease certain offices, manufacturing buildings, transportation equipment, machinery, computers and other equipment. Our most significant lease liabilities relate to real estate leases. These leases include renewal, termination or purchase options, and we have assessed these to determine whether it is reasonably certain for us to exercise any of the previously mentioned options. All periods relating to options that are reasonably certain to be exercised have been included in the lease term of the respective leases. We have recorded ROU assets for lease arrangements that are reasonably certain to extend beyond 12 months. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments under the lease. ROU assets and liabilities are recognized at lease commencement date based on the present value of lease payments over the lease term. The implicit rate within our leases is generally not determinable, and we use our incremental borrowing rate at the lease commencement date to determine the net present value of lease payments. The determination of the appropriate incremental borrowing rate requires judgment. We determine the appropriate incremental borrowing rate for each lease using our current borrowing rate, adjusted for various factors including geographic region, level of collateralization and term, to align with the term of the underlying lease. Many of our leases are subject to payment adjustments to reflect annual changes in price indexes, such as the Consumer Price Index. While associated lease liabilities are not re-measured as a result of changes in the applicable price indexes, changes to required lease payments are treated as variable lease payments and recognized in the period in which the obligation for those payments was incurred. Leases with a lease term of 12 months or less, including renewal options that are reasonably certain to be exercised, that also do not include an option to purchase the underlying asset that is reasonably certain of exercise, are not recorded on the balance sheet. Instead, lease payments for these leases are recognized as a lease cost on a straight-line basis over the lease term. We elected the package of practical expedients, which among other things, does not require reassessment of lease classification. Additionally, we have made an accounting policy election whereby we chose not to separate non-lease components from lease components in agreements in all leases which we are the lessee. We did not identify any events or conditions during the three and six month periods ended June 30, 2019 to indicate that a reassessment or re-measurement of our existing leases was required. There were also no impairment indicators identified during the three and six month periods ended June 30, 2019 that required an impairment test for the Company’s ROU assets or other long-lived assets in accordance with ASC 360-10. Our current lease liabilities of $63 million are included in "Accrued and other current liabilities" and our non-current lease liabilities of $193 million are included in "Other non-current accrued liabilities" as of June 30, 2019. Our ROU asset balances are included in "Other non-current assets". The net balance of our ROU assets as of June 30, 2019 was $257 million . These balances include an immaterial amount related to finance leases. The components of our lease cost were as follows: (in millions) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Lease cost Operating lease cost $ 20 $ 38 Short-term lease cost 2 5 Variable lease cost 4 10 Total lease cost $ 26 $ 53 The supplemental cash flow information related to leases are as follows: (in millions) Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 37 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 16 Information relating to the lease term and discount rate are as follows: Six Months Ended June 30, 2019 Weighted-average remaining lease term (years) Operating leases 6 Weighted-average discount rate Operating leases 2.7% As of June 30, 2019, the maturities of operating lease liabilities were as follows: (in millions) 2019 $ 36 2020 61 2021 45 2022 33 2023 25 2024 20 Thereafter 57 Total lease payments 277 Less: Imputed interest (22 ) Total $ 255 Disclosures related to periods prior to adoption of the New Lease Standard as reported and provided in our December 31, 2018 Form 10-K. As of December 31, 2018, we were obligated to make minimum future rental payments under operating leases as follows: (in millions) 2019 $ 76 2020 61 2021 43 2022 33 2023 22 Thereafter 64 Total lease payments 299 Lessor arrangements In addition to manufacturing and selling equipment, we also lease out equipment to customers in exchange for consideration. These arrangements are generally short term in nature and predominantly involve the rental of pumps and accessories within the Water Infrastructure segment. Rental arrangements generally do not provide the customer the right to purchase the equipment as Xylem’s strategy is to rent these items over their useful lives. Customers may be billed based on daily, weekly or monthly rates depending on the expected rental period. We assessed that these arrangements constitute a lease under ASC 842, and have recognized them as operating leases. In situations where arrangements contain both the sale of products and a leasing component, contract consideration is allocated based on relative standalone selling price. Total revenue from lease arrangements were $64 million and $123 million for the three and six month periods ended June 30, 2019. Our gross assets available for rent and related accumulated amortization were $262 million and $169 million , respectively, as of June 30, 2019. Depreciation expense for these assets were $7 million and $14 million

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill Changes in the carrying value of goodwill by reportable segment for the six months ended June 30, 2019 are as follows: (in millions) Water Infrastructure Applied Water Measurement & Control Solutions Total Balance as of January 1, 2019 $ 653 $ 516 $ 1,807 $ 2,976 Activity in 2019 Divested/Acquired — — 19 19 Foreign currency and other — — 4 4 Balance as of June 30, 2019 $ 653 $ 516 $ 1,830 $ 2,999 Other Intangible Assets Information regarding our other intangible assets is as follows: June 30, 2019 December 31, 2018 (in millions) Carrying Amount Accumulated Amortization Net Intangibles Carrying Amount Accumulated Amortization Net Intangibles Customer and distributor relationships $ 947 $ (318 ) $ 629 $ 951 $ (286 ) $ 665 Proprietary technology and patents 205 (101 ) 104 198 (93 ) 105 Trademarks 149 (46 ) 103 148 (41 ) 107 Software 392 (185 ) 207 355 (164 ) 191 Other 21 (19 ) 2 24 (19 ) 5 Indefinite-lived intangibles 166 — 166 159 — 159 Other Intangibles $ 1,880 $ (669 ) $ 1,211 $ 1,835 $ (603 ) $ 1,232 Amortization expense related to finite-lived intangible assets was $34 million and $69 million for the three and six months ended June 30, 2019, respectively, and $36 million and $74 million for the three and six months ended June 30, 2018, respectively. During the first quarter of 2019 we determined that the intended use of a finite lived customer relationship within our Measurement and Control Solutions segment had changed. Accordingly we recorded a $3 million impairment charge. The charge was calculated using the income approach, which is considered a Level 3 input for fair value measurement, and is reflected in “Restructuring and asset impairment charges” in our Condensed Consolidated Income Statements.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Risk Management Objective of Using Derivatives We are exposed to certain risks arising from both our business operations and economic conditions, and we principally manage our exposures to these risks through management of our core business activities. Certain of our foreign operations expose us to fluctuations of foreign interest rates and exchange rates that may impact revenue, expenses, cash receipts, cash payments, and the value of our stockholders' equity. We enter into derivative financial instruments to protect the value or fix the amount of certain cash flows in terms of the functional currency of the business unit with that exposure and reduce the volatility in stockholders' equity. Cash Flow Hedges of Foreign Exchange Risk We are exposed to fluctuations in various foreign currencies against our functional currencies. We use foreign currency derivatives, including currency forward agreements, to manage our exposure to fluctuations in the various exchange rates. Currency forward agreements involve fixing the foreign currency exchange rate for delivery of a specified amount of foreign currency on a specified date. Certain business units with exposure to foreign currency exchange risks have designated certain currency forward agreements as cash flow hedges of forecasted intercompany inventory purchases and sales. Our principal currency exposures relate to the Euro, Swedish Krona, British Pound, Canadian Dollar, Polish Zloty and Australian Dollar. We had foreign exchange contracts with purchased notional amounts totaling $247 million and $506 million as of June 30, 2019 and December 31, 2018, respectively. As of June 30, 2019 , our most significant foreign currency derivatives included contracts to sell U.S. Dollar and purchase Euro, purchase Swedish Krona and sell Euro, sell British Pound and purchase Euro, purchase Polish Zloty and sell Euro, purchase U.S. Dollar and sell Canadian Dollar, and to sell Canadian Dollar and purchase Euro. The purchased notional amounts associated with these currency derivatives are $97 million , $77 million , $25 million , $18 million , $15 million and $11 million , respectively. As of December 31, 2018, the purchased notional amounts associated with these currency derivatives were $191 million , $168 million , $52 million , $37 million , $29 million and $22 million , respectively. Hedges of Net Investments in Foreign Operations We are exposed to changes in foreign currencies impacting our net investments held in foreign subsidiaries. Cross Currency Swaps Beginning in 2015, we entered into cross currency swaps to manage our exposure to fluctuations in the Euro-U.S. Dollar exchange rate. During the second quarter of 2019 we entered into additional cross currency swaps. The total notional amount of derivative instruments designated as net investment hedges was $729 million and $426 million as of June 30, 2019 and December 31, 2018 , respectively. Foreign Currency Denominated Debt On March 11, 2016, we issued 2.250% Senior Notes of €500 million aggregate principal amount due March 2023. We designated the entirety of the outstanding balance, or $565 million and $566 million as of June 30, 2019 and December 31, 2018, respectively, net of unamortized discount, as a hedge of a net investment in certain foreign subsidiaries. The table below presents the effect of our derivative financial instruments on the Condensed Consolidated Income Statements and Statements of Comprehensive Income: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Cash Flow Hedges Foreign Exchange Contracts Amount of (loss) recognized in OCI (a) $ — $ (9 ) $ (9 ) $ (9 ) Amount of (gain) loss reclassified from OCI into revenue (a) 1 (1 ) 2 (2 ) Amount of loss reclassified from OCI into cost of revenue (a) 1 — 2 — Net Investment Hedges Cross Currency Swaps Amount of gain (loss) recognized in OCI (a) $ (8 ) $ 36 $ (1 ) $ 13 Amount of income recognized in Interest Expense 4 — $ 7 $ — Foreign Currency Denominated Debt Amount of gain (loss) recognized in OCI (a) $ (6 ) $ 42 $ 1 $ 19 (a) Effective portion As of June 30, 2019 , $6 million of net losses on cash flow hedges are expected to be reclassified into earnings in the next 12 months. The ineffective portion of a cash flow hedge is recognized immediately in Selling, general and administrative expenses in the Condensed Consolidated Income Statements and was not material for the three and six months ended June 30, 2019 and 2018 . As of June 30, 2019 , no gains or losses on the net investment hedges are expected to be reclassified into earnings over their duration. The net investment hedges did not experience any ineffectiveness for the three and six months ended June 30, 2019 . The fair values of our derivative assets and liabilities are measured on a recurring basis using Level 2 inputs and are determined through the use of models that consider various assumptions including yield curves, time value and other measurements. The fair values of our foreign exchange contracts currently included in our hedging program designated as hedging instruments were as follows: (in millions) June 30, December 31, Derivatives designated as hedging instruments Assets Cash Flow Hedges Other current assets $ — $ 3 Liabilities Cash Flow Hedges Other current liabilities $ (5 ) $ (1 ) Net Investment Hedges Other non-current accrued liabilities $ (45 ) $ (46 ) The fair value of our long-term debt, due in 2023, designated as a net investment hedge was $608 million and $599 million as of June 30, 2019 and December 31, 2018, respectively.

Accrued and Other Current Liabi

Accrued and Other Current Liabilities	6 Months Ended
	Jun. 30, 2019
Payables and Accruals [Abstract]
Accrued and Other Current Liabilities	Accrued and Other Current Liabilities The components of total accrued and other current liabilities are as follows: (in millions) June 30, December 31, Compensation and other employee benefits $ 177 $ 194 Customer-related liabilities 144 129 Accrued taxes 77 85 Lease liabilities 63 — Accrued warranty costs 37 44 Other accrued liabilities 98 94 Total accrued and other current liabilities $ 596 $ 546

Credit Facilities and Debt

Credit Facilities and Debt	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Credit Facilities and Debt	Credit Facilities and Debt Total debt outstanding is summarized as follows: (in millions) June 30, December 31, 4.875% Senior Notes due 2021 (a) $ 600 $ 600 2.250% Senior Notes due 2023 (a) 569 570 3.250% Senior Notes due 2026 (a) 500 500 4.375% Senior Notes due 2046 (a) 400 400 Commercial paper 259 — Term loan 143 257 Debt issuance costs and unamortized discount (b) (18 ) (19 ) Total debt 2,453 2,308 Less: short-term borrowings and current maturities of long-term debt 402 257 Total long-term debt $ 2,051 $ 2,051 (a) The fair value of our Senior Notes was determined using quoted prices in active markets for identical securities, which are considered Level 1 inputs. The fair value of our Senior Notes due 2021 was $632 million and $620 million as of June 30, 2019 and December 31, 2018 , respectively. The fair value of our Senior Notes due 2023 was $608 million and $599 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of our Senior Notes due 2026 was $506 million and $476 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of our Senior Notes due 2046 was $421 million and $397 million as of June 30, 2019 and December 31, 2018, respectively. (b) The debt issuance costs and unamortized discount are recognized as a reduction in the carrying value of the Senior Notes in the Condensed Consolidated Balance Sheets and are being amortized to interest expense in our Condensed Consolidated Income Statements over the expected remaining terms of the Senior Notes. Senior Notes On September 20, 2011, we issued 4.875% Senior Notes of $600 million aggregate principal amount due October 2021 (the "Senior Notes due 2021"). On March 11, 2016, we issued 2.250% Senior Notes of €500 million aggregate principal amount due March 2023 (the "Senior Notes due 2023"). On October 11, 2016, we issued 3.250% Senior Notes of $500 million aggregate principal amount due October 2026 (the “Senior Notes due 2026”) and 4.375% Senior Notes of $400 million aggregate principal amount due October 2046 (the “Senior Notes due 2046” and, together with the Senior Notes due 2021, the Senior Notes due 2023 and the Senior Notes due 2026, the “Senior Notes”). The Senior Notes include covenants that restrict our ability, subject to exceptions, to incur debt secured by liens and engage in sale and leaseback transactions, as well as provide for customary events of default (subject, in certain cases, to receipt of notice of default and/or customary grace and cure periods). We may redeem the Senior Notes, as applicable, in whole or in part, at any time at a redemption price equal to the principal amount of the Senior Notes to be redeemed, plus a make-whole premium. We may also redeem the Senior Notes in certain other circumstances, as set forth in the applicable Senior Notes indenture. If a change of control triggering event (as defined in the applicable Senior Notes indenture) occurs, we will be required to make an offer to purchase the Senior Notes at a price equal to 101% of their principal amount plus accrued and unpaid interest to the date of repurchase. Interest on the Senior Notes due 2021 is payable on April 1 and October 1 of each year. Interest on the Senior Notes due 2023 is payable on March 11 of each year. Interest on the Senior Notes due 2026 and the Senior Notes due 2046 is payable on May 1 and November 1 of each year beginning on May 1, 2017. As of June 30, 2019 , we are in compliance with all covenants for the Senior Notes. Credit Facilities 2015 Five -Year Revolving Credit Facility Effective March 27, 2015, Xylem entered into a Five-Year Revolving Credit Facility (the "2015 Credit Facility") with Citibank, N.A., as Administrative Agent, and a syndicate of lenders. The 2015 Credit Facility provided for an aggregate principal amount of up to $600 million of: (i) revolving extensions of credit (the "revolving loans") outstanding at any time and (ii) the issuance of letters of credit in a face amount not in excess of $100 million outstanding at any time. The 2015 Credit Facility provided for increases of up to $200 million for a maximum aggregate principle amount of $800 million in aggregate principal amount at our request and with the consent of the institutions providing such increased commitments. On March 5, 2019 Xylem terminated the 2015 Credit Facility among the Company, certain lenders and Citibank, N.A. as Administrative Agent. 2019 Five -Year Revolving Credit Facility On March 5, 2019, Xylem entered into a Five -Year Revolving Credit Facility (the “2019 Credit Facility”) with Citibank, N.A., as administrative agent, and a syndicate of lenders. The 2019 Credit Facility provides for an aggregate principal amount of up to $800 million (available in U.S. Dollars and in Euros), with an accordion option for increases of up to $200 million for a maximum aggregate principal amount of $1 billion at the request of Xylem and with the consent of the institutions providing such increased commitments. Interest on all loans under the 2019 Credit Facility is payable either quarterly or at the expiration of any LIBOR or EURIBOR interest period applicable thereto. Borrowings accrue interest at a rate equal to, at Xylem's election, a base rate or an adjusted LIBOR or EURIBOR rate plus an applicable margin. The 2019 Credit Facility includes customary provisions for implementation of replacement rates for LIBOR-based and EURIBOR-based loans. The 2019 Credit Facility also includes a pricing grid that determines the applicable margin based on Xylem's credit rating, with a further adjustment depending on Xylem's annual Sustainalytics Environmental, Social and Governance score. Xylem will also pay quarterly fees to each lender for such lender’s commitment to lend accruing on such commitment at a rate based on our credit rating, whether such commitment is used or unused, as well as a quarterly letter of credit fee accruing on the letter of credit exposure of such lender during the preceding quarter at a rate based on the credit rating of Xylem. The 2019 Credit facility requires that Xylem maintain a consolidated total debt to consolidated EBITDA ratio, which will be based on the last four fiscal quarters, and in addition a number of customary covenants, including limitations on the incurrence of secured debt and debt of subsidiaries, liens, sale and lease-back transactions, mergers, consolidations, liquidations, dissolutions and sales of assets. The 2019 Credit Agreement also contains customary events of default. Finally, Xylem has the ability to designate subsidiaries that can borrow under the 2019 Credit Facility, subject to certain requirements and conditions set forth in the 2019 Credit Agreement. As of June 30, 2019, the 2019 Credit Facility was undrawn and we are in compliance with all covenants. Commercial Paper U.S. Dollar Commercial Paper Program Our U.S. Dollar commercial paper program generally serves as a means of short-term funding with a $600 million maximum issuing balance and a combined limit of $800 million inclusive of the 2019 Five -Year Revolving Credit Facility. As of June 30, 2019 and December 31, 2018, none of the Company's $600 million U.S. Dollar commercial paper program was outstanding. We have the ability to continue borrowing under this program going forward in in future periods. Euro Commercial Paper Program On June 3, 2019 Xylem entered into a Euro commercial paper program with ING Bank N.V., as administrative agent, and a syndicate of dealers. The Euro commercial paper program provides for a maximum issuing balance of up to €500 million (approximately $569 million ) which may be denominated in a variety of currencies. The maximum issuing balance may be increased in accordance with the Dealer Agreement. As of June 30, 2019, $259 million of the Company's Euro commercial paper program was outstanding at a weighted average interest rate of (0.22)% . We have the ability to continue borrowing under this program going forward in in future periods. Term Loan Facility On January 26, 2018, the Company’s subsidiary, Xylem Europe GmbH (the “borrower”) entered into a 12-month €225 million (approximately $256 million ) term loan facility (the “Term Facility”) at an interest rate of 0.45% in which the terms are set forth in a Term Loan Agreement, among the borrower, the Company, as parent guarantor and ING Bank. The Company entered into a parental guarantee in favor of ING Bank also dated January 26, 2018 to secure all present and future obligations of the borrower under the Term Loan Agreement. The Term Facility was used to partially fund the acquisition of Pure Technologies Ltd in 2018 and the maturity date has since been extended through February 2020. As of June 30, 2019 and December 31, 2018, $143 million and $257 million

Postretirement Benefit Plans

Postretirement Benefit Plans	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Postretirement Benefit Plans	Postretirement Benefit Plans The components of net periodic benefit cost for our defined benefit pension plans are as follows: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Domestic defined benefit pension plans: Service cost $ — $ 1 $ 1 $ 2 Interest cost 1 1 2 2 Expected return on plan assets (2 ) (1 ) (4 ) (3 ) Amortization of net actuarial loss 1 — 1 1 Net periodic benefit cost $ — $ 1 $ — $ 2 International defined benefit pension plans: Service cost $ 2 $ 3 $ 5 $ 5 Interest cost 5 5 10 10 Expected return on plan assets (9 ) (10 ) (18 ) (19 ) Amortization of net actuarial loss 2 3 4 5 Settlement/Curtailment — — — 1 Net periodic benefit cost $ — $ 1 $ 1 $ 2 Total net periodic benefit cost $ — $ 2 $ 1 $ 4 The components of net periodic benefit cost other than the service cost component are included in the line item "Other non-operating income, net" in the Condensed Consolidated Income Statements. The total net periodic benefit cost for other postretirement employee benefit plans was less than $1 million for both the three and six months ended June 30, 2019, including net credits recognized into other comprehensive income ("OCI") of $1 million for both the three and six months ended June 30, 2019 . The total net periodic benefit cost for other postretirement employee benefit plans was less than $1 million for both the three and six months ended June 30, 2018, including net credits recognized in OCI of less than $1 million and $1 million , respectively, for the three and six months ended June 30, 2018 . We contributed $9 million and $12 million to our defined benefit plans during the six months ended June 30, 2019 and 2018 , respectively. Additional contributions ranging between approximately $8 million and $14 million are expected during the remainder of 2019 .

Equity

Equity	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Equity	Equity The following table shows the changes in stockholders' equity for the six months ended June 30, 2019: Common Retained Accumulated Other Treasury Stock Non-Controlling Interest Total Balance at January 1, 2019 $ 2 $ 1,950 $ 1,639 $ (336 ) $ (487 ) $ 14 $ 2,782 Sale of business (2 ) (2 ) Net income 79 79 Other comprehensive income, net 20 20 Dividends declared ($0.24 per share) (44 ) (44 ) Stock incentive plan activity 12 (14 ) (2 ) Repurchase of common stock (25 ) (25 ) Balance at March 31, 2019 $ 2 $ 1,962 $ 1,674 $ (316 ) $ (526 ) $ 12 $ 2,808 Net income 139 139 Other comprehensive loss, net (11 ) (11 ) Dividends declared ($0.24 per share) (43 ) (43 ) Stock incentive plan activity 13 — 13 Balance at June 30, 2019 $ 2 $ 1,975 $ 1,770 $ (327 ) $ (526 ) $ 12 $ 2,906 The following table shows the changes in stockholders' equity for the six months ended June 30, 2018: Common Retained Accumulated Other Treasury Stock Non-Controlling Interest Total Balance at January 1, 2018 $ 2 $ 1,912 $ 1,227 $ (210 ) $ (428 ) $ 16 $ 2,519 Cumulative effect of change in accounting principle 14 (17 ) (3 ) Net income 79 79 Other comprehensive income, net 20 20 Dividends declared ($0.21 per share) (38 ) (38 ) Stock incentive plan activity 13 (8 ) 5 Repurchase of common stock (25 ) (25 ) Balance at March 31, 2018 $ 2 $ 1,925 $ 1,282 $ (207 ) $ (461 ) $ 16 $ 2,557 Net income 115 115 Other comprehensive loss, net (87 ) (87 ) Dividends declared ($0.21 per share) (38 ) (38 ) Stock incentive plan activity 7 7 Repurchase of common stock (25 ) (25 ) Balance at June 30, 2018 $ 2 $ 1,932 $ 1,359 $ (294 ) $ (486 ) $ 16 $ 2,529

Share-Based Compensation Plans

Share-Based Compensation Plans	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Share-Based Compensation Plans	Share-Based Compensation Plans Share-based compensation expense was $7 million and $16 million during the three and six months ended June 30, 2019, respectively, and $7 million and $16 million during the three and six months ended June 30, 2018, respectively. The unrecognized compensation expense related to our stock options, restricted stock units and performance share units was $9 million , $29 million and $23 million , respectively, at June 30, 2019 and is expected to be recognized over a weighted average period of 2.1 , 2.1 and 2 years, respectively. The amount of cash received from the exercise of stock options was $8 million and $4 million for the six months ended June 30, 2019 and 2018 , respectively. Stock Option Grants The following is a summary of the changes in outstanding stock options for the six months ended June 30, 2019 : Share units (in thousands) Weighted Average Exercise Price / Share Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (in millions) Outstanding at January 1, 2019 2,125 $ 43.08 6.5 Granted 330 74.07 Exercised (244 ) 35.47 Forfeited and expired (5 ) 58.96 Outstanding at June 30, 2019 2,206 $ 48.53 6.7 $ 78 Options exercisable at June 30, 2019 1,533 $ 39.53 5.8 $ 68 Vested and expected to vest as of June 30, 2019 2,130 $ 47.66 6.6 $ 77 The total intrinsic value of options exercised (which is the amount by which the stock price exceeded the exercise price of the options on the date of exercise) during the six months ended June 30, 2019 was $10.3 million . Stock Option Fair Value The fair value of each option grant was estimated on the date of grant using the binomial lattice pricing model which incorporates multiple and variable assumptions over time, including assumptions such as employee exercise patterns, stock price volatility and changes in dividends. The following are weighted-average assumptions for 2019 grants: Volatility 24.10 % Risk-free interest rate 2.56 % Dividend yield 1.30 % Expected term (in years) 5.4 Weighted-average fair value / share $ 17.06 Expected volatility is calculated based on a weighted analysis of historic and implied volatility measures for a set of peer companies and Xylem. We use historical data to estimate option exercise and employee termination behavior within the valuation model. Employee groups and option characteristics are considered separately for valuation purposes. The expected term represents an estimate of the period of time options are expected to remain outstanding. The risk-free rate is based on the United States Treasury yield curve in effect at the time of option grant. Restricted Stock Unit Grants The following is a summary of restricted stock unit activity for the six months ended June 30, 2019 . The fair value of the restricted share unit awards is determined using the closing price of our common stock on date of grant. Share units (in thousands) Weighted Average Grant Date Fair Value /Share Outstanding at January 1, 2019 537 $ 59.41 Granted 253 74.28 Vested (237 ) 55.05 Forfeited (25 ) 66.82 Outstanding at June 30, 2019 528 $ 68.05 ROIC Performance Share Unit Grants The following is a summary of Return on Invested Capital ("ROIC") performance share unit grants for the six months ended June 30, 2019 . The fair value of the ROIC performance share units is equal to the closing share price on the date of the grant. Share units (in thousands) Weighted Average Grant Date Fair Value /Share Outstanding at January 1, 2019 274 $ 52.11 Granted 76 74.07 Adjustment for Performance Condition Achieved (a) 74 37.86 Vested (173 ) 37.86 Forfeited (2 ) 60.76 Outstanding at June 30, 2019 249 $ 64.45 (a) Represents an increase in the number of original ROIC performance share units awarded based on the final performance criteria achievement at the end of the performance period of such awards. TSR Performance Share Unit Grants The following is a summary of our Total Shareholder Return ("TSR") performance share unit grants for the six months ended June 30, 2019 : Share units (in thousands) Weighted Average Grant Date Fair Value /Share Outstanding at January 1, 2019 274 $ 61.04 Granted 76 89.62 Adjustment for Market Condition Achieved (a) 74 37.86 Vested (173 ) 37.86 Forfeited (2 ) 60.76 Outstanding at June 30, 2019 249 $ 75.67 (a) Represents an increase in the number of original TSR performance share units awarded based on the final market condition achievement at the end of the performance period of such awards. The fair value of TSR performance share units was calculated on the date of grant using a Monte Carlo simulation model utilizing several key assumptions, including expected Company and peer company share price volatility, correlation coefficients between peers, the risk-free rate of return, the expected dividend yield and other award design features. The following are weighted-average assumptions for 2019 grants: Volatility 20.9 % Risk-free interest rate 2.52 %

Capital Stock

Capital Stock	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Capital Stock	Capital Stock For the three and six months ended June 30, 2019 the Company repurchased common stock of less than 0.1 million shares for less than $1 million and approximately 0.5 million shares for $39 million , respectively. Repurchases include both share repurchase programs approved by the Board of Directors and repurchases in relation to settlement of employee tax withholding obligations due as a result of the vesting of restricted stock units. The details of repurchases by each program are as follows: On August 24, 2015, our Board of Directors authorized the repurchase of up to $500 million in shares with no expiration date. The program's objective is to deploy our capital in a manner that benefits our shareholders and maintains our focus on growth. There were no shares repurchased under this program for the three months ended June 30, 2019. For the six months ended June 30, 2019, we repurchased approximately 0.3 million shares for $25 million . For the three and six months ended June 30, 2018, we repurchased approximately 0.4 million shares for $25 million and 0.7 million shares for $50 million , respectively. There are up to $338 million in shares that may still be purchased under this plan as of June 30, 2019 . Aside from the aforementioned repurchase program, we repurchased less than 0.1 million shares and approximately 0.2 million shares for less than $1 million and approximately $14 million for the three and six months ended June 30, 2019 , respectively, in relation to settlement of employee tax withholding obligations due as a result of the vesting of restricted stock units. Likewise, we repurchased less than 0.1 million shares and approximately 0.1 million shares for less than $1 million and approximately $8 million for the three and six months ended June 30, 2018, respectively.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Loss The following table provides the components of accumulated other comprehensive loss for the six months ended June 30, 2019: (in millions) Foreign Currency Translation Postretirement Benefit Plans Derivative Instruments Total Balance at January 1, 2019 $ (121 ) $ (214 ) $ (1 ) $ (336 ) Foreign currency translation adjustment 29 — — 29 Tax on foreign currency translation adjustment (4 ) — — (4 ) Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net — 2 — 2 Income tax impact on amortization of postretirement benefit plan items — (1 ) — (1 ) Unrealized loss on derivative hedge agreements — — (9 ) (9 ) Income tax benefit on unrealized loss on derivative hedge agreements — — 1 1 Reclassification of unrealized loss on foreign exchange agreements into revenue — — 1 1 Reclassification of unrealized loss on foreign exchange agreements into cost of revenue — — 1 1 Balance at March 31, 2019 $ (96 ) $ (213 ) $ (7 ) $ (316 ) Foreign currency translation adjustment (18 ) — — (18 ) Tax on foreign currency translation adjustment 3 — — 3 Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net — 2 — 2 Income tax impact on amortization of postretirement benefit plan items — — — — Reclassification of unrealized loss on foreign exchange agreements into revenue — — 1 1 Reclassification of unrealized loss on foreign exchange agreements into cost of revenue — — 1 1 Balance at June 30, 2019 $ (111 ) $ (211 ) $ (5 ) $ (327 ) The following table provides the components of accumulated other comprehensive loss for the six months ended June 30, 2018: (in millions) Foreign Currency Translation Postretirement Benefit Plans Derivative Instruments Total Balance at January 1, 2018 $ (15 ) $ (198 ) $ 3 $ (210 ) Cumulative effect of change in accounting principle (11 ) (6 ) — (17 ) Foreign currency translation adjustment 8 — — 8 Tax on foreign currency translation adjustment 11 — — 11 Changes in postretirement benefit plans — 1 — 1 Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net — 2 — 2 Income tax impact on amortization of postretirement benefit plan items — (1 ) — (1 ) Reclassification of unrealized gain on derivative hedge agreements into revenue — — (1 ) (1 ) Balance at March 31, 2018 $ (7 ) $ (202 ) $ 2 $ (207 ) Foreign currency translation adjustment (60 ) — — (60 ) Tax on foreign currency translation adjustment (19 ) — — (19 ) Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net — — — — Other non-operating income — 3 — 3 Income tax impact on amortization of postretirement benefit plan items — (1 ) — (1 ) Unrealized loss on derivative hedge agreements — — (9 ) (9 ) Reclassification of unrealized gain on derivative hedge agreements into revenue — — (1 ) (1 ) Balance at June 30, 2018 $ (86 ) $ (200 ) $ (8 ) $ (294 )

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Proceedings From time to time we are involved in legal and regulatory proceedings that are incidental to the operation of our businesses (or the business operations of previously owned entities). These proceedings may seek remedies relating to environmental matters, tax, intellectual property matters, acquisitions or divestitures, product liability and personal injury claims, privacy, employment, labor and pension matters, government contract issues and commercial or contractual disputes. From time to time claims may be asserted against Xylem alleging injury caused by any of our products resulting from asbestos exposure. We believe there are numerous legal defenses available for such claims and would defend ourselves vigorously. Pursuant to the Distribution Agreement among ITT Corporation (now ITT LLC), Exelis and Xylem, ITT Corporation (now ITT LLC) has an obligation to indemnify, defend and hold Xylem harmless for asbestos product liability matters, including settlements, judgments, and legal defense costs associated with all pending and future claims that may arise from past sales of ITT’s legacy products. We believe ITT Corporation (now ITT LLC) remains a substantial entity with sufficient financial resources to honor its obligations to us. See Note 6. "Income Taxes", of our condensed consolidated financial statements for a description of a pending tax litigation matter. Although the ultimate outcome of any legal matter cannot be predicted with certainty, based on present information, including our assessment of the merits of the particular claims, we do not believe it is reasonably possible that any asserted or unasserted legal claims or proceedings, individually or in aggregate, will have a material adverse effect on our results of operations, or financial condition. We have estimated and accrued $6 million and $7 million as of June 30, 2019 and December 31, 2018, respectively, for these general litigation matters. Indemnifications As part of our 2011 spin-off from our former parent, ITT Corporation (now ITT LLC), Exelis Inc. and Xylem will indemnify, defend and hold harmless each of the other parties with respect to such parties’ assumed or retained liabilities under the Distribution Agreement and breaches of the Distribution Agreement or related spin agreements. The former parent’s indemnification obligations include asserted and unasserted asbestos and silica liability claims that relate to the presence or alleged presence of asbestos or silica in products manufactured, repaired or sold prior to October 31, 2011, the Distribution Date, subject to limited exceptions with respect to certain employee claims, or in the structure or material of any building or facility, subject to exceptions with respect to employee claims relating to Xylem buildings or facilities. The indemnification associated with pending and future asbestos claims does not expire. Xylem has not recorded a liability for material matters for which we expect to be indemnified by the former parent or Exelis Inc. through the Distribution Agreement and we are not aware of any claims or other circumstances that would give rise to material payments from us under such indemnifications. On May 29, 2015, Harris Inc. acquired Exelis. As the parent of Exelis, Harris Inc. is responsible for Exelis’ indemnification obligations under the Distribution Agreement. Guarantees We obtain certain stand-by letters of credit, bank guarantees, surety bonds and insurance letters of credit from third-party financial institutions in the ordinary course of business when required under contracts or to satisfy insurance related requirements. As of June 30, 2019 and December 31, 2018 , the amount of stand-by letters of credit, bank guarantees and surety bonds was $305 million and $275 million , respectively. Environmental In the ordinary course of business, we are subject to federal, state, local, and foreign environmental laws and regulations. We are responsible, or are alleged to be responsible, for ongoing environmental investigation and remediation of sites in various countries. These sites are in various stages of investigation and/or remediation and in many of these proceedings our liability is considered de minimis. We have received notification from the United States Environmental Protection Agency, and from similar state and foreign environmental agencies, that a number of sites formerly or currently owned and/or operated by Xylem or for which we are responsible under the Distribution Agreement, and other properties or water supplies that may be or have been impacted from those operations, contain disposed or recycled materials or wastes and require environmental investigation and/or remediation. These sites include instances where we have been identified as a potentially responsible party under federal and state environmental laws and regulations. Accruals for environmental matters are recorded on a site-by-site basis when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, based on current law and existing technologies. Our accrued liabilities for these environmental matters represent our best estimates related to the investigation and remediation of environmental media such as water, soil, soil vapor, air and structures, as well as related legal fees. These estimates, and related accruals, are reviewed quarterly and updated for progress of investigation and remediation efforts and changes in facts and legal circumstances. Liabilities for these environmental expenditures are recorded on an undiscounted basis. We have estimated and accrued $ 3 million and $4 million as of June 30, 2019 and December 31, 2018 , respectively, for environmental matters. It is difficult to estimate the final costs of investigation and remediation due to various factors, including incomplete information regarding particular sites and other potentially responsible parties, uncertainty regarding the extent of investigation or remediation and our share, if any, of liability for such conditions, the selection of alternative remedial approaches, and changes in environmental standards and regulatory requirements. We believe the total amount accrued is reasonable based on existing facts and circumstances. Warranties We warrant numerous products, the terms of which vary widely. In general, we warrant products against defect and specific non-performance. The table below provides the changes in our product warranty accrual: (in millions) 2019 2018 Warranty accrual – January 1 $ 60 $ 82 Net charges for product warranties in the period 11 13 Settlement of warranty claims (23 ) (24 ) Foreign currency and other — 1 Warranty accrual - June 30 $ 48 $ 72

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Information	Segment Information Our business has three reportable segments: Water Infrastructure, Applied Water and Measurement & Control Solutions. When determining the reportable segments, the Company aggregated operating segments based on their similar economic and operating characteristics. The Water Infrastructure segment focuses on the transportation and treatment of water, offering a range of products including water and wastewater pumps, treatment equipment, and controls and systems. The Applied Water segment serves many of the primary uses of water and focuses on the residential, commercial and industrial markets. The Applied Water segment's major products include pumps, valves, heat exchangers, controls and dispensing equipment. The Measurement & Control Solutions segment focuses on developing advanced technology solutions that enable intelligent use and conservation of critical water and energy resources as well as analytical instrumentation used in the testing of water. The Measurement & Control Solutions segment's major products include smart metering, networked communications, measurement and control technologies, critical infrastructure technologies, software and services including cloud-based analytics, remote monitoring and data management, leak detection and pressure monitoring solutions and testing equipment. Additionally, we have Regional selling locations, which consist primarily of selling and marketing organizations and related support services, that offer products and services across our reportable segments. Corporate and other consists of corporate office expenses including compensation, benefits, occupancy, depreciation, and other administrative costs, as well as charges related to certain matters, such as environmental matters, that are managed at a corporate level and are not included in the business segments in evaluating performance or allocating resources. The accounting policies of each segment are the same as those described in the summary of significant accounting policies (see Note 1 in the 2018 Annual Report). The following tables contain financial information for each reportable segment: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Revenue: Water Infrastructure $ 561 $ 546 $ 1,043 $ 1,026 Applied Water 394 388 773 754 Measurement & Control Solutions 390 383 766 754 Total $ 1,345 $ 1,317 $ 2,582 $ 2,534 Operating Income: Water Infrastructure $ 98 $ 92 $ 149 $ 141 Applied Water 62 61 118 111 Measurement & Control Solutions 26 31 42 64 Corporate and other (15 ) (13 ) (29 ) (32 ) Total operating income $ 171 $ 171 $ 280 $ 284 Interest expense $ 18 21 $ 36 $ 42 Other non-operating income, net 3 2 5 5 Gain (loss) from sale of business — (2 ) 1 (2 ) Income before taxes $ 156 $ 150 $ 250 $ 245 Depreciation and Amortization: Water Infrastructure $ 16 $ 16 $ 31 $ 33 Applied Water 6 6 12 11 Measurement & Control Solutions 35 36 71 73 Regional selling locations (a) 4 5 8 10 Corporate and other 2 2 5 5 Total $ 63 $ 65 $ 127 $ 132 Capital Expenditures: Water Infrastructure $ 21 $ 17 $ 51 $ 40 Applied Water 4 5 10 14 Measurement & Control Solutions 29 22 53 46 Regional selling locations (b) 5 3 9 8 Corporate and other 1 3 6 3 Total $ 60 $ 50 $ 129 $ 111 (a) Depreciation and amortization expense incurred by the Regional selling locations was included in an overall allocation of Regional selling location costs to the segments; however, a certain portion of that expense was not specifically identified to a segment. That expense is captured in this Regional selling location line. (b) Represents capital expenditures incurred by the Regional selling locations not allocated to the segments.

Background and Basis of Prese_2

Background and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The interim condensed consolidated financial statements reflect our financial position and results of operations in conformity with accounting principles generally accepted in the United States of America ("GAAP"). All intercompany transactions between our businesses have been eliminated. The unaudited interim condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC") and, in the opinion of management, reflect all adjustments (which include normal recurring adjustments) considered necessary for a fair presentation of the financial position and results of operations for the periods presented. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such SEC rules. We believe that the disclosures made are adequate to make the information presented not misleading. We consistently applied the accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2018 ("2018 Annual Report") in preparing these unaudited condensed consolidated financial statements, with the exception of accounting standard updates described in Note 2. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes included in our 2018 Annual Report. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Estimates are revised as additional information becomes available. Estimates and assumptions are used for, but not limited to, postretirement obligations and assets, revenue recognition, income tax contingency accruals and valuation allowances, goodwill and indefinite lived intangible impairment testing, contingent liabilities and lease accounting. Actual results could differ from these estimates. Our quarterly financial periods end on the Saturday closest to the last day of the calendar quarter, except for the fourth quarter which ends on December 31. For ease of presentation, the condensed consolidated financial statements included herein are described as ending on the last day of the calendar quarter.

Recently Issued Accounting Pr_2

Recently Issued Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Pronouncements Not Yet Adopted and Recently Adopted Pronouncements	and $265 million , respectively, as well as deferred tax assets and deferred tax liabilities of $68 million , as of January 1, 2019, the date of initial application. The guidance did not have a material impact on our Condensed Consolidated Income Statements and Statements of Cash Flow. See Note 9, "Leases" for further details.

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Purchase Price Allocation	(in millions) Amount Cash $ 14 Receivables 23 Inventories 4 Prepaid and other current assets 2 Property, plant and equipment 22 Intangible assets 149 Other long-term assets 1 Accounts payable (3 ) Accrued and other current liabilities (12 ) Deferred income tax liabilities (25 ) Other non-current accrued liabilities (2 ) Total identifiable net assets 173 Goodwill 261 Total consideration $ 434
Summary of Intangible Assets Acquired	Category Life Amount (in millions) Customer Relationships 17 - 18 years $ 84 Technology 3 - 10 years 38 Tradenames 20 years 21 Internally Developed Software 3 years 6 Total $ 149
Pro Forma Information	(in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Revenue N/A $ 2,539 Net income N/A $ 191

Restructuring Charges (Tables)

Restructuring Charges (Tables)	6 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Components of restructuring and asset impairment charges	The following table presents the components of restructuring expense and asset impairment charges: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 By component: Severance and other charges $ 13 $ 5 $ 20 $ 14 Lease related charges — — 1 1 Other restructuring charges 1 — 1 — Total restructuring charges $ 14 $ 5 $ 22 $ 15 Asset impairment — — 3 — Total restructuring and asset impairment charges $ 14 $ 5 $ 25 $ 15 By segment: Water Infrastructure $ 7 $ 3 $ 11 $ 6 Applied Water 2 — 2 1 Measurement & Control Solutions 5 2 12 8
Restructuring Accruals	The following table displays a rollforward of the restructuring accruals, presented on our Condensed Consolidated Balance Sheets within accrued and other current liabilities, for the six months ended June 30, 2019 and 2018 : (in millions) 2019 2018 Restructuring accruals - January 1 $ 5 $ 7 Restructuring charges 22 15 Cash payments (12 ) (12 ) Foreign currency and other (1 ) — Restructuring accruals - June 30 $ 14 $ 10 By segment: Water Infrastructure $ 4 $ 2 Applied Water 2 1 Measurement & Control Solutions 5 4 Regional selling locations (a) 3 2 Corporate and other — 1 (a) Regional selling locations consist primarily of selling and marketing organizations that incurred restructuring expense which was allocated to the segments. The liabilities associated with restructuring expense were not allocated to the segments.
Planned Employee Reductions Associated with Restructuring	The following is a rollforward for the six months ended June 30, 2019 and 2018 of employee position eliminations associated with restructuring activities: 2019 2018 Planned reductions - January 1 69 47 Additional planned reductions 350 155 Actual reductions and reversals (298 ) (103 ) Planned reductions - June 30 121 99
Expected Restructuring Costs	The following table presents expected restructuring spend for actions commenced as of June 30, 2019: (in millions) Water Infrastructure Applied Water Measurement & Control Solutions Corporate Total Actions Commenced in 2019: Total expected costs $ 17 $ 4 $ 8 $ — $ 29 Costs incurred during Q1 2019 3 — 3 — 6 Costs incurred during Q2 2019 7 2 5 — 14 Total expected costs remaining $ 7 $ 2 $ — $ — $ 9 Actions Commenced in 2018: Total expected costs $ 8 $ 1 $ 7 $ — $ 16 Costs incurred during 2018 7 1 7 — 15 Costs incurred during Q1 2019 1 — — — 1 Costs incurred during Q2 2019 — — — — — Total expected costs remaining $ — $ — $ — $ — $ — Actions Commenced in 2017: Total expected costs $ 16 $ 8 $ 4 $ — $ 28 Costs incurred during 2017 5 4 2 — 11 Costs incurred during 2018 2 1 1 — 4 Costs incurred during Q1 2019 — — 1 — 1 Costs incurred during Q2 2019 — — — — — Total expected costs remaining $ 9 $ 3 $ — $ — $ 12

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table illustrates the sources of revenue: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Revenue from contracts with customers $ 1,281 $ 1,258 $ 2,459 $ 2,420 Lease Revenue 64 59 123 114 Total $ 1,345 $ 1,317 $ 2,582 $ 2,534 The following table reflects revenue from contracts with customers by application: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Water Infrastructure Transport $ 396 $ 387 $ 742 $ 734 Treatment 101 100 178 178 Applied Water Building Services 216 206 429 400 Industrial Water 178 182 344 354 Measurement and Control Solutions Water 195 175 394 347 Energy 85 84 158 164 Software as a Service/Other 25 35 49 69 Test 85 89 165 174 Total $ 1,281 $ 1,258 $ 2,459 $ 2,420 The following table reflects revenue from contracts with customers by geographical region: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Water Infrastructure United States $ 160 $ 135 $ 293 $ 248 Europe 179 191 339 368 Emerging Markets & Other 158 161 288 296 Applied Water United States 212 198 413 386 Europe 92 100 186 198 Emerging Markets & Other 90 90 174 170 Measurement and Control Solutions United States 252 230 488 436 Europe 64 71 136 155 Emerging Markets & Other 74 82 142 163 Total $ 1,281 $ 1,258 $ 2,459 $ 2,420
Contract with Customer, Asset and Liability	The table below provides contract assets, contract liabilities, and significant changes in contract assets and liabilities: (in millions) Contract Assets (a) Contract Liabilities Balance at January 1, 2018 $ 89 $ 107 Additions, net 51 86 Revenue recognized from opening balance — (74 ) Billings (54 ) — Other (3 ) (5 ) Balance at June 30, 2018 $ 83 $ 114 Balance at January 1, 2019 $ 96 $ 113 Additions, net 55 84 Revenue recognized from opening balance — (66 ) Billings (50 ) — Other 10 — Balance at June 30, 2019 $ 111 $ 131 (a) Excludes receivable balances which are disclosed on the balance sheet

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Basic and diluted net earnings per share	The following is a reconciliation of the shares used in calculating basic and diluted net earnings per share: Three Months Ended Six Months Ended June 30, June 30, 2019 2018 2019 2018 Net income (in millions) $ 139 $ 115 $ 218 $ 194 Shares (in thousands): Weighted average common shares outstanding 179,964 179,770 179,842 179,814 Add: Participating securities (a) 35 35 30 29 Weighted average common shares outstanding — Basic 179,999 179,805 179,872 179,843 Plus incremental shares from assumed conversions: (b) Dilutive effect of stock options 832 886 834 907 Dilutive effect of restricted stock units and performance share units 322 351 427 453 Weighted average common shares outstanding — Diluted 181,153 181,042 181,133 181,203 Basic earnings per share $ 0.77 $ 0.64 $ 1.21 $ 1.08 Diluted earnings per share $ 0.77 $ 0.64 $ 1.20 $ 1.07 (a) Restricted stock unit awards containing rights to non-forfeitable dividends that participate in undistributed earnings with common shareholders are considered participating securities for purposes of computing earnings per share. (b) Incremental shares from stock options, restricted stock units and performance share units are computed by the treasury stock method. The weighted average shares listed below were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented or were otherwise excluded under the treasury stock method. The treasury stock method calculates dilution assuming the exercise of all in-the-money options and vesting of restricted stock units and performance share units, reduced by the repurchase of shares with the proceeds from the assumed exercises and unrecognized compensation expense for outstanding awards. Performance share units will be included in the treasury stock calculation of diluted earnings per share upon achievement of underlying performance or market conditions at the end of the reporting period. See Note 16 , "Share-Based Compensation Plans" to the condensed consolidated financial statements for further detail on the performance share units. Three Months Ended Six Months Ended June 30, June 30, (in thousands) 2019 2018 2019 2018 Stock options 1,418 1,360 1,406 1,289 Restricted stock units 382 385 365 339 Performance share units 455 517 463 527

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	The components of total inventories are summarized as follows: (in millions) June 30, December 31, Finished goods $ 243 $ 248 Work in process 54 45 Raw materials 307 302 Total inventories $ 604 $ 595

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Lease, Cost	The components of our lease cost were as follows: (in millions) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Lease cost Operating lease cost $ 20 $ 38 Short-term lease cost 2 5 Variable lease cost 4 10 Total lease cost $ 26 $ 53 Information relating to the lease term and discount rate are as follows: Six Months Ended June 30, 2019 Weighted-average remaining lease term (years) Operating leases 6 Weighted-average discount rate Operating leases 2.7%
Assets and Liabilities, Leases	The supplemental cash flow information related to leases are as follows: (in millions) Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 37 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 16
Lessee, Operating Lease, Liability, Maturity	Six Months Ended June 30, 2019 Weighted-average remaining lease term (years) Operating leases 6 Weighted-average discount rate Operating leases 2.7% As of June 30, 2019, the maturities of operating lease liabilities were as follows:
Schedule of Future Minimum Rental Payments for Operating Leases	As of December 31, 2018, we were obligated to make minimum future rental payments under operating leases as follows: (in millions) 2019 $ 76 2020 61 2021 43 2022 33 2023 22 Thereafter 64 Total lease payments 299

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in the carrying value of goodwill by operating segment	Changes in the carrying value of goodwill by reportable segment for the six months ended June 30, 2019 are as follows: (in millions) Water Infrastructure Applied Water Measurement & Control Solutions Total Balance as of January 1, 2019 $ 653 $ 516 $ 1,807 $ 2,976 Activity in 2019 Divested/Acquired — — 19 19 Foreign currency and other — — 4 4 Balance as of June 30, 2019 $ 653 $ 516 $ 1,830 $ 2,999
Other Intangible Assets	Information regarding our other intangible assets is as follows: June 30, 2019 December 31, 2018 (in millions) Carrying Amount Accumulated Amortization Net Intangibles Carrying Amount Accumulated Amortization Net Intangibles Customer and distributor relationships $ 947 $ (318 ) $ 629 $ 951 $ (286 ) $ 665 Proprietary technology and patents 205 (101 ) 104 198 (93 ) 105 Trademarks 149 (46 ) 103 148 (41 ) 107 Software 392 (185 ) 207 355 (164 ) 191 Other 21 (19 ) 2 24 (19 ) 5 Indefinite-lived intangibles 166 — 166 159 — 159 Other Intangibles $ 1,880 $ (669 ) $ 1,211 $ 1,835 $ (603 ) $ 1,232

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Effect of derivative financial instruments	The table below presents the effect of our derivative financial instruments on the Condensed Consolidated Income Statements and Statements of Comprehensive Income: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Cash Flow Hedges Foreign Exchange Contracts Amount of (loss) recognized in OCI (a) $ — $ (9 ) $ (9 ) $ (9 ) Amount of (gain) loss reclassified from OCI into revenue (a) 1 (1 ) 2 (2 ) Amount of loss reclassified from OCI into cost of revenue (a) 1 — 2 — Net Investment Hedges Cross Currency Swaps Amount of gain (loss) recognized in OCI (a) $ (8 ) $ 36 $ (1 ) $ 13 Amount of income recognized in Interest Expense 4 — $ 7 $ — Foreign Currency Denominated Debt Amount of gain (loss) recognized in OCI (a) $ (6 ) $ 42 $ 1 $ 19 (a) Effective portion
Fair values of foreign exchange contracts	The fair values of our foreign exchange contracts currently included in our hedging program designated as hedging instruments were as follows: (in millions) June 30, December 31, Derivatives designated as hedging instruments Assets Cash Flow Hedges Other current assets $ — $ 3 Liabilities Cash Flow Hedges Other current liabilities $ (5 ) $ (1 ) Net Investment Hedges Other non-current accrued liabilities $ (45 ) $ (46 )

Accrued and Other Current Lia_2

Accrued and Other Current Liabilities (Tables)	6 Months Ended
	Jun. 30, 2019
Payables and Accruals [Abstract]
Accrued and Other Current Liabilities	The components of total accrued and other current liabilities are as follows: (in millions) June 30, December 31, Compensation and other employee benefits $ 177 $ 194 Customer-related liabilities 144 129 Accrued taxes 77 85 Lease liabilities 63 — Accrued warranty costs 37 44 Other accrued liabilities 98 94 Total accrued and other current liabilities $ 596 $ 546

Credit Facilities and Debt (Tab

Credit Facilities and Debt (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Schedule of Credit Facilities and Long-Term Debt	Total debt outstanding is summarized as follows: (in millions) June 30, December 31, 4.875% Senior Notes due 2021 (a) $ 600 $ 600 2.250% Senior Notes due 2023 (a) 569 570 3.250% Senior Notes due 2026 (a) 500 500 4.375% Senior Notes due 2046 (a) 400 400 Commercial paper 259 — Term loan 143 257 Debt issuance costs and unamortized discount (b) (18 ) (19 ) Total debt 2,453 2,308 Less: short-term borrowings and current maturities of long-term debt 402 257 Total long-term debt $ 2,051 $ 2,051 (a) The fair value of our Senior Notes was determined using quoted prices in active markets for identical securities, which are considered Level 1 inputs. The fair value of our Senior Notes due 2021 was $632 million and $620 million as of June 30, 2019 and December 31, 2018 , respectively. The fair value of our Senior Notes due 2023 was $608 million and $599 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of our Senior Notes due 2026 was $506 million and $476 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of our Senior Notes due 2046 was $421 million and $397 million as of June 30, 2019 and December 31, 2018, respectively. (b) The debt issuance costs and unamortized discount are recognized as a reduction in the carrying value of the Senior Notes in the Condensed Consolidated Balance Sheets and are being amortized to interest expense in our Condensed Consolidated Income Statements over the expected remaining terms of the Senior Notes.

Postretirement Benefit Plans (T

Postretirement Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Components of net periodic benefit cost and other amounts recognized in other comprehensive income	The components of net periodic benefit cost for our defined benefit pension plans are as follows: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Domestic defined benefit pension plans: Service cost $ — $ 1 $ 1 $ 2 Interest cost 1 1 2 2 Expected return on plan assets (2 ) (1 ) (4 ) (3 ) Amortization of net actuarial loss 1 — 1 1 Net periodic benefit cost $ — $ 1 $ — $ 2 International defined benefit pension plans: Service cost $ 2 $ 3 $ 5 $ 5 Interest cost 5 5 10 10 Expected return on plan assets (9 ) (10 ) (18 ) (19 ) Amortization of net actuarial loss 2 3 4 5 Settlement/Curtailment — — — 1 Net periodic benefit cost $ — $ 1 $ 1 $ 2 Total net periodic benefit cost $ — $ 2 $ 1 $ 4

Equity (Tables)

Equity (Tables)	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Schedule of Stockholders Equity	The following table shows the changes in stockholders' equity for the six months ended June 30, 2019: Common Retained Accumulated Other Treasury Stock Non-Controlling Interest Total Balance at January 1, 2019 $ 2 $ 1,950 $ 1,639 $ (336 ) $ (487 ) $ 14 $ 2,782 Sale of business (2 ) (2 ) Net income 79 79 Other comprehensive income, net 20 20 Dividends declared ($0.24 per share) (44 ) (44 ) Stock incentive plan activity 12 (14 ) (2 ) Repurchase of common stock (25 ) (25 ) Balance at March 31, 2019 $ 2 $ 1,962 $ 1,674 $ (316 ) $ (526 ) $ 12 $ 2,808 Net income 139 139 Other comprehensive loss, net (11 ) (11 ) Dividends declared ($0.24 per share) (43 ) (43 ) Stock incentive plan activity 13 — 13 Balance at June 30, 2019 $ 2 $ 1,975 $ 1,770 $ (327 ) $ (526 ) $ 12 $ 2,906 The following table shows the changes in stockholders' equity for the six months ended June 30, 2018: Common Retained Accumulated Other Treasury Stock Non-Controlling Interest Total Balance at January 1, 2018 $ 2 $ 1,912 $ 1,227 $ (210 ) $ (428 ) $ 16 $ 2,519 Cumulative effect of change in accounting principle 14 (17 ) (3 ) Net income 79 79 Other comprehensive income, net 20 20 Dividends declared ($0.21 per share) (38 ) (38 ) Stock incentive plan activity 13 (8 ) 5 Repurchase of common stock (25 ) (25 ) Balance at March 31, 2018 $ 2 $ 1,925 $ 1,282 $ (207 ) $ (461 ) $ 16 $ 2,557 Net income 115 115 Other comprehensive loss, net (87 ) (87 ) Dividends declared ($0.21 per share) (38 ) (38 ) Stock incentive plan activity 7 7 Repurchase of common stock (25 ) (25 ) Balance at June 30, 2018 $ 2 $ 1,932 $ 1,359 $ (294 ) $ (486 ) $ 16 $ 2,529

Share-Based Compensation Plans

Share-Based Compensation Plans (Tables)	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Summary of restricted stock activity	The following is a summary of restricted stock unit activity for the six months ended June 30, 2019 . The fair value of the restricted share unit awards is determined using the closing price of our common stock on date of grant. Share units (in thousands) Weighted Average Grant Date Fair Value /Share Outstanding at January 1, 2019 537 $ 59.41 Granted 253 74.28 Vested (237 ) 55.05 Forfeited (25 ) 66.82 Outstanding at June 30, 2019 528 $ 68.05
Summary of performance based share grants	The following is a summary of Return on Invested Capital ("ROIC") performance share unit grants for the six months ended June 30, 2019 . The fair value of the ROIC performance share units is equal to the closing share price on the date of the grant. Share units (in thousands) Weighted Average Grant Date Fair Value /Share Outstanding at January 1, 2019 274 $ 52.11 Granted 76 74.07 Adjustment for Performance Condition Achieved (a) 74 37.86 Vested (173 ) 37.86 Forfeited (2 ) 60.76 Outstanding at June 30, 2019 249 $ 64.45 (a) Represents an increase in the number of original ROIC performance share units awarded based on the final performance criteria achievement at the end of the performance period of such awards. TSR Performance Share Unit Grants The following is a summary of our Total Shareholder Return ("TSR") performance share unit grants for the six months ended June 30, 2019 : Share units (in thousands) Weighted Average Grant Date Fair Value /Share Outstanding at January 1, 2019 274 $ 61.04 Granted 76 89.62 Adjustment for Market Condition Achieved (a) 74 37.86 Vested (173 ) 37.86 Forfeited (2 ) 60.76 Outstanding at June 30, 2019 249 $ 75.67
Summary of the changes in outstanding stock options	The following is a summary of the changes in outstanding stock options for the six months ended June 30, 2019 : Share units (in thousands) Weighted Average Exercise Price / Share Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (in millions) Outstanding at January 1, 2019 2,125 $ 43.08 6.5 Granted 330 74.07 Exercised (244 ) 35.47 Forfeited and expired (5 ) 58.96 Outstanding at June 30, 2019 2,206 $ 48.53 6.7 $ 78 Options exercisable at June 30, 2019 1,533 $ 39.53 5.8 $ 68 Vested and expected to vest as of June 30, 2019 2,130 $ 47.66 6.6 $ 77
Stock option valuation assumptions	The following are weighted-average assumptions for 2019 grants: Volatility 24.10 % Risk-free interest rate 2.56 % Dividend yield 1.30 % Expected term (in years) 5.4 Weighted-average fair value / share $ 17.06
Performance-based shares valuation assumptions	The fair value of TSR performance share units was calculated on the date of grant using a Monte Carlo simulation model utilizing several key assumptions, including expected Company and peer company share price volatility, correlation coefficients between peers, the risk-free rate of return, the expected dividend yield and other award design features. The following are weighted-average assumptions for 2019 grants: Volatility 20.9 % Risk-free interest rate 2.52 %

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table provides the components of accumulated other comprehensive loss for the six months ended June 30, 2019: (in millions) Foreign Currency Translation Postretirement Benefit Plans Derivative Instruments Total Balance at January 1, 2019 $ (121 ) $ (214 ) $ (1 ) $ (336 ) Foreign currency translation adjustment 29 — — 29 Tax on foreign currency translation adjustment (4 ) — — (4 ) Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net — 2 — 2 Income tax impact on amortization of postretirement benefit plan items — (1 ) — (1 ) Unrealized loss on derivative hedge agreements — — (9 ) (9 ) Income tax benefit on unrealized loss on derivative hedge agreements — — 1 1 Reclassification of unrealized loss on foreign exchange agreements into revenue — — 1 1 Reclassification of unrealized loss on foreign exchange agreements into cost of revenue — — 1 1 Balance at March 31, 2019 $ (96 ) $ (213 ) $ (7 ) $ (316 ) Foreign currency translation adjustment (18 ) — — (18 ) Tax on foreign currency translation adjustment 3 — — 3 Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net — 2 — 2 Income tax impact on amortization of postretirement benefit plan items — — — — Reclassification of unrealized loss on foreign exchange agreements into revenue — — 1 1 Reclassification of unrealized loss on foreign exchange agreements into cost of revenue — — 1 1 Balance at June 30, 2019 $ (111 ) $ (211 ) $ (5 ) $ (327 ) The following table provides the components of accumulated other comprehensive loss for the six months ended June 30, 2018: (in millions) Foreign Currency Translation Postretirement Benefit Plans Derivative Instruments Total Balance at January 1, 2018 $ (15 ) $ (198 ) $ 3 $ (210 ) Cumulative effect of change in accounting principle (11 ) (6 ) — (17 ) Foreign currency translation adjustment 8 — — 8 Tax on foreign currency translation adjustment 11 — — 11 Changes in postretirement benefit plans — 1 — 1 Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net — 2 — 2 Income tax impact on amortization of postretirement benefit plan items — (1 ) — (1 ) Reclassification of unrealized gain on derivative hedge agreements into revenue — — (1 ) (1 ) Balance at March 31, 2018 $ (7 ) $ (202 ) $ 2 $ (207 ) Foreign currency translation adjustment (60 ) — — (60 ) Tax on foreign currency translation adjustment (19 ) — — (19 ) Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net — — — — Other non-operating income — 3 — 3 Income tax impact on amortization of postretirement benefit plan items — (1 ) — (1 ) Unrealized loss on derivative hedge agreements — — (9 ) (9 ) Reclassification of unrealized gain on derivative hedge agreements into revenue — — (1 ) (1 ) Balance at June 30, 2018 $ (86 ) $ (200 ) $ (8 ) $ (294 )

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Changes in product warranty accrual	We warrant numerous products, the terms of which vary widely. In general, we warrant products against defect and specific non-performance. The table below provides the changes in our product warranty accrual: (in millions) 2019 2018 Warranty accrual – January 1 $ 60 $ 82 Net charges for product warranties in the period 11 13 Settlement of warranty claims (23 ) (24 ) Foreign currency and other — 1 Warranty accrual - June 30 $ 48 $ 72

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Financial information for each reportable segment	Additionally, we have Regional selling locations, which consist primarily of selling and marketing organizations and related support services, that offer products and services across our reportable segments. Corporate and other consists of corporate office expenses including compensation, benefits, occupancy, depreciation, and other administrative costs, as well as charges related to certain matters, such as environmental matters, that are managed at a corporate level and are not included in the business segments in evaluating performance or allocating resources. The accounting policies of each segment are the same as those described in the summary of significant accounting policies (see Note 1 in the 2018 Annual Report). The following tables contain financial information for each reportable segment: Three Months Ended Six Months Ended June 30, June 30, (in millions) 2019 2018 2019 2018 Revenue: Water Infrastructure $ 561 $ 546 $ 1,043 $ 1,026 Applied Water 394 388 773 754 Measurement & Control Solutions 390 383 766 754 Total $ 1,345 $ 1,317 $ 2,582 $ 2,534 Operating Income: Water Infrastructure $ 98 $ 92 $ 149 $ 141 Applied Water 62 61 118 111 Measurement & Control Solutions 26 31 42 64 Corporate and other (15 ) (13 ) (29 ) (32 ) Total operating income $ 171 $ 171 $ 280 $ 284 Interest expense $ 18 21 $ 36 $ 42 Other non-operating income, net 3 2 5 5 Gain (loss) from sale of business — (2 ) 1 (2 ) Income before taxes $ 156 $ 150 $ 250 $ 245 Depreciation and Amortization: Water Infrastructure $ 16 $ 16 $ 31 $ 33 Applied Water 6 6 12 11 Measurement & Control Solutions 35 36 71 73 Regional selling locations (a) 4 5 8 10 Corporate and other 2 2 5 5 Total $ 63 $ 65 $ 127 $ 132 Capital Expenditures: Water Infrastructure $ 21 $ 17 $ 51 $ 40 Applied Water 4 5 10 14 Measurement & Control Solutions 29 22 53 46 Regional selling locations (b) 5 3 9 8 Corporate and other 1 3 6 3 Total $ 60 $ 50 $ 129 $ 111 (a) Depreciation and amortization expense incurred by the Regional selling locations was included in an overall allocation of Regional selling location costs to the segments; however, a certain portion of that expense was not specifically identified to a segment. That expense is captured in this Regional selling location line. (b) Represents capital expenditures incurred by the Regional selling locations not allocated to the segments.

Background and Basis of Prese_3

Background and Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2019
Background and Basis of Presentation (Textual) [Abstract]
Number of operating segment	3

Recently Issued Accounting Pr_3

Recently Issued Accounting Pronouncements (Textuals) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jan. 01, 2019
Accounting Policies [Abstract]
Operating lease liability	$ 255	$ 265
Right-of-use assets	$ 257	267
Deferred tax liabilities		68
Deferred tax assets		$ 68

Acquisitions and Divestitures_2

Acquisitions and Divestitures (Textuals) (Details) - USD ($) $ in Millions	Jan. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Acquisition of business, net of cash acquired		$ 13		$ 18	$ 430
Pure Technologies Ltd
Business Acquisition [Line Items]
Acquisition of business, net of cash acquired	$ 420
Acquisition costs	$ 4
Revenue			$ 26		42
Operating income (loss)			$ 1		(2)
Other acquisitions
Business Acquisition [Line Items]
Acquisition of business, net of cash acquired					$ 10

Acquisitions and Divestitures_3

Acquisitions and Divestitures (Purchase Price Allocation) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018	Jan. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 2,999	$ 2,976
Pure Technologies Ltd
Business Acquisition [Line Items]
Cash			$ 14
Receivables			23
Inventories			4
Prepaid and other current assets			2
Property, plant and equipment			22
Intangible assets			149
Other long-term assets			1
Accounts payable			(3)
Accrued and other current liabilities			(12)
Deferred income tax liabilities			(25)
Other non-current accrued liabilities			(2)
Total identifiable net assets			173
Goodwill			261
Total consideration			$ 434

Acquisitions and Divestitures_4

Acquisitions and Divestitures (Summary of Intangible Assts Acquired) (Details) - Pure Technologies Ltd - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jan. 31, 2018
Business Acquisition [Line Items]
Intangible assets		$ 149
Customer Relationships
Business Acquisition [Line Items]
Intangible assets		84
Customer Relationships | Minimum
Business Acquisition [Line Items]
Weighted-average useful life	17 years
Customer Relationships | Maximum
Business Acquisition [Line Items]
Weighted-average useful life	18 years
Technology
Business Acquisition [Line Items]
Intangible assets		38
Technology | Minimum
Business Acquisition [Line Items]
Weighted-average useful life	3 years
Technology | Maximum
Business Acquisition [Line Items]
Weighted-average useful life	10 years
Tradenames
Business Acquisition [Line Items]
Weighted-average useful life	20 years
Intangible assets		21
Internally Developed Software
Business Acquisition [Line Items]
Intangible assets		$ 6
Internally Developed Software | Minimum
Business Acquisition [Line Items]
Weighted-average useful life	3 years

Acquisitions and Divestitures_5

Acquisitions and Divestitures (Summary of Pro Forma Information) (Details) - Pure Technologies Ltd $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Business Acquisition [Line Items]
Revenue	$ 2,539
Net income	$ 191

Restructuring Charges (Restruct

Restructuring Charges (Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Impairment Charge
Severance and other charges	$ 13		$ 5	$ 20	$ 14
Lease related charges	0		0	1	1
Restructuring charges	14		5	22	15
Asset impairment	0	$ 3	0	3	0
Total restructuring and asset impairment charges	14		5	25	15
Other Restructuring Costs	1		0	1	0
Water Infrastructure
Restructuring Cost and Impairment Charge
Restructuring charges	7		3	11	6
Applied Water
Restructuring Cost and Impairment Charge
Restructuring charges	2		0	2	1
Measurement & Control Solutions
Restructuring Cost and Impairment Charge
Restructuring charges	$ 5		$ 2	$ 12	$ 8

Revenue (Details)

Revenue (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Change in Contract with Customer, Asset [Abstract]
Beginning balance	$ 96	$ 89
Additions, net	55	51
Billings	(50)	(54)
Other	10	(3)
Ending balance	111	83
Change in Contract with Customer, Liability [Abstract]
Beginning balance	113	107
Additions, net	84	86
Revenue recognized from opening balance	(66)	(74)
Other	0	(5)
Ending balance	$ 131	$ 114

Restructuring Charges (Accrual

Restructuring Charges (Accrual Rollfoward) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Reserve [Roll Forward]
Restructuring accruals - January 1				$ 5	$ 7
Restructuring charges		$ 14	$ 5	22	15
Cash payments				(12)	(12)
Foreign currency and other				(1)	0
Restructuring accruals - June 30		14	10	14	10
Water Infrastructure
Restructuring Reserve [Roll Forward]
Restructuring charges		7	3	11	6
Restructuring accruals - June 30		4	2	4	2
Applied Water
Restructuring Reserve [Roll Forward]
Restructuring charges		2	0	2	1
Restructuring accruals - June 30		2	1	2	1
Measurement & Control Solutions
Restructuring Reserve [Roll Forward]
Restructuring charges		5	2	12	8
Restructuring accruals - June 30		5	4	5	4
Regional Selling Locations
Restructuring Reserve [Roll Forward]
Restructuring accruals - June 30	[1]	3	2	3	2
Corporate and other
Restructuring Reserve [Roll Forward]
Restructuring accruals - June 30		$ 0	$ 1	$ 0	$ 1
[1]	(a) Regional selling locations consist primarily of selling and marketing organizations that incurred restructuring expense which was allocated to the segments. The liabilities associated with restructuring expense were not allocated to the segments.

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue (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]
Revenue from contracts with customers	$ 1,281	$ 1,258	$ 2,459	$ 2,420
Lease Revenue	64	59	123	114
Total	1,345	1,317	2,582	2,534
Water Infrastructure
Disaggregation of Revenue [Line Items]
Total	561	546	1,043	1,026
Water Infrastructure | United States
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	160	135	293	248
Water Infrastructure | Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	179	191	339	368
Water Infrastructure | Emerging Markets & Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	158	161	288	296
Water Infrastructure | Transport
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	396	387	742	734
Water Infrastructure | Treatment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	101	100	178	178
Applied Water
Disaggregation of Revenue [Line Items]
Total	394	388	773	754
Applied Water | United States
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	212	198	413	386
Applied Water | Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92	100	186	198
Applied Water | Emerging Markets & Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	90	90	174	170
Applied Water | Building Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	216	206	429	400
Applied Water | Industrial Water
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	178	182	344	354
Measurement & Control Solutions
Disaggregation of Revenue [Line Items]
Total	390	383	766	754
Measurement & Control Solutions | United States
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	252	230	488	436
Measurement & Control Solutions | Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	64	71	136	155
Measurement & Control Solutions | Emerging Markets & Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	74	82	142	163
Measurement & Control Solutions | Water
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	195	175	394	347
Measurement & Control Solutions | Energy
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	85	84	158	164
Measurement & Control Solutions | Software as a Service/Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	25	35	49	69
Measurement & Control Solutions | Test
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 85	$ 89	$ 165	$ 174

Restructuring Charges (Number o

Restructuring Charges (Number of Positions Eliminated Rollfoward) (Details) - employee	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Restructuring and Related Cost, Number of Positions Eliminated [Roll Forward]
Planned reductions - January 1	69	47
Additional planned reductions	350	155
Actual reductions and reversals	(298)	(103)
Planned reductions - June 30	121	99

Revenue (Narrative) (Details)

Revenue (Narrative) (Details) $ in Millions	Jun. 30, 2019USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 340
Expected timing of recognition	60 months

Restructuring Charges (Textuals

Restructuring Charges (Textuals) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 14		$ 5	$ 22	$ 15
Asset impairment	0	$ 3	0	3	0
Applied Water
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2		$ 0	$ 2	$ 1

Restructuring Charges (Estimate

Restructuring Charges (Estimated Restructuring Costs) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
2019 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	$ 29
Restructuring costs incurred during period	14	$ 6
Total expected costs remaining	9
2018 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	16
Restructuring costs incurred during period	0	1	$ 15
Total expected costs remaining	0
2017 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	28
Restructuring costs incurred during period	0	1	4	$ 11
Total expected costs remaining	12
Operating Segments | Water Infrastructure | 2019 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	17
Restructuring costs incurred during period	7	3
Total expected costs remaining	7
Operating Segments | Water Infrastructure | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	8
Restructuring costs incurred during period	0	1	7
Total expected costs remaining	0
Operating Segments | Water Infrastructure | 2017 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	16
Restructuring costs incurred during period	0	0	2	5
Total expected costs remaining	9
Operating Segments | Applied Water | 2019 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	4
Restructuring costs incurred during period	2	0
Total expected costs remaining	2
Operating Segments | Applied Water | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	1
Restructuring costs incurred during period	0	0	1
Total expected costs remaining	0
Operating Segments | Applied Water | 2017 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	8
Restructuring costs incurred during period	0	0	1	4
Total expected costs remaining	3
Operating Segments | Measurement & Control Solutions | 2019 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	8
Restructuring costs incurred during period	5	3
Total expected costs remaining	0
Operating Segments | Measurement & Control Solutions | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	7
Restructuring costs incurred during period	0	0	7
Total expected costs remaining	0
Operating Segments | Measurement & Control Solutions | 2017 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	4
Restructuring costs incurred during period	0	1	1	2
Total expected costs remaining	0
Corporate | 2019 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	0
Restructuring costs incurred during period	0	0
Total expected costs remaining	0
Corporate | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	0
Restructuring costs incurred during period	0	0	0
Total expected costs remaining	0
Corporate | 2017 Plan
Restructuring Cost and Reserve [Line Items]
Total expected costs	0
Restructuring costs incurred during period	0	$ 0	$ 0	$ 0
Total expected costs remaining	$ 0

Income Taxes (Textuals) (Detail

Income Taxes (Textuals) (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income tax provision		$ 17	$ 35	$ 32	$ 51
Effective tax rate		10.50%	23.20%	12.80%	20.80%
Unrecognized tax benefits	$ 127	$ 127		$ 127			$ 136
Interest accrued for unrecognized tax benefits	8	$ 8		$ 8
Assessment for tax, penalties and interest	$ 80
Scenario, Forecast
Income Tax Contingency [Line Items]
Reduction from statute of limitations						$ 3

Earnings Per Share (Calculation

Earnings Per Share (Calculations for EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Basic and diluted net earnings per share:
Net income attributable to Xylem (in usd)		$ 139	$ 115	$ 218	$ 194
Shares
Weighted average common shares outstanding		179,964	179,770	179,842	179,814
Add: Participating securities	[1]	35	35	30	29
Weighted average common shares outstanding — Basic		179,999	179,805	179,872	179,843
Plus incremental shares from assumed conversions:
Weighted average common shares outstanding — Diluted		181,153	181,042	181,133	181,203
Basic earnings per share (usd per share)		$ 0.77	$ 0.64	$ 1.21	$ 1.08
Diluted earnings per share (usd per share)		$ 0.77	$ 0.64	$ 1.20	$ 1.07
Stock Options
Plus incremental shares from assumed conversions:
Dilutive effect of common shares	[2]	832	886	834	907
Restricted Stock
Plus incremental shares from assumed conversions:
Dilutive effect of common shares	[2]	322	351	427	453
[1]	Restricted stock unit awards containing rights to non-forfeitable dividends that participate in undistributed earnings with common shareholders are considered participating securities for purposes of computing earnings per share.
[2]	Incremental shares from stock options, restricted stock units and performance share units are computed by the treasury stock method. The weighted average shares listed below were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the periods presented or were otherwise excluded under the treasury stock method. The treasury stock method calculates dilution assuming the exercise of all in-the-money options and vesting of restricted stock units and performance share units, reduced by the repurchase of shares with the proceeds from the assumed exercises and unrecognized compensation expense for outstanding awards. Performance share units will be included in the treasury stock calculation of diluted earnings per share upon achievement of underlying performance or market conditions at the end of the reporting period. See Note 16 , "Share-Based Compensation Plans" to the condensed consolidated financial statements for further detail on the performance share units.

Earnings Per Share (Summary of

Earnings Per Share (Summary of Antidilutive Securities) (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Stock Options
Incremental shares from stock options and restricted stock:
Antidilutive securities (in shares)	1,418	1,360	1,406	1,289
Restricted Stock
Incremental shares from stock options and restricted stock:
Antidilutive securities (in shares)	382	385	365	339
Performance Based Shares
Incremental shares from stock options and restricted stock:
Antidilutive securities (in shares)	455	517	463	527

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Inventories
Finished goods	$ 243	$ 248
Work in process	54	45
Raw materials	307	302
Total inventories	$ 604	$ 595

Leases (Textuals) (Details)

Leases (Textuals) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating liability, current	$ 63	$ 63			$ 0
Operating liability, noncurrent	193	193
Right-of-use assets	257	257		$ 267
Revenue from lease arrangements	64	123
Assets subject to rental	262	262
Assets subject to rental, accumulated amortization	169	169
Lessor, Lease, Description [Line Items]
Depreciation		58	$ 58
Leased Assets
Lessor, Lease, Description [Line Items]
Depreciation	$ 7	$ 14

Leases (Lease Costs) (Details)

Leases (Lease Costs) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating lease cost	$ 20	$ 38
Short-term lease cost	2	5
Variable lease cost	4	10
Total lease cost	$ 26	$ 53

Leases (Supplemental Lease Info

Leases (Supplemental Lease Information) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 37
Operating leases	$ 16
Operating leases	6 years
Operating leases	2.70%

Leases (Lease Maturities) (Deta

Leases (Lease Maturities) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Leases
2019	$ 36
2020	61
2021	45
2022	33
2023	25
2024	20
Thereafter	57
Total lease payments	277
Less: Imputed interest	(22)
Total	$ 255	$ 265
Operating Leases
2019			$ 76
2020			61
2021			43
2022			33
2023			22
Thereafter			64
Total lease payments			$ 299

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Goodwill Rollforward) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Changes in the carrying value of goodwill by operating segment
Balance as of January 1, 2019	$ 2,976
Divested/Acquired	19
Foreign currency and other	4
Balance as of June 30, 2019	2,999
Water Infrastructure
Changes in the carrying value of goodwill by operating segment
Balance as of January 1, 2019	653
Divested/Acquired	0
Foreign currency and other	0
Balance as of June 30, 2019	653
Applied Water
Changes in the carrying value of goodwill by operating segment
Balance as of January 1, 2019	516
Divested/Acquired	0
Foreign currency and other	0
Balance as of June 30, 2019	516
Measurement & Control Solutions
Changes in the carrying value of goodwill by operating segment
Balance as of January 1, 2019	1,807
Divested/Acquired	19
Foreign currency and other	4
Balance as of June 30, 2019	$ 1,830

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets (Summary of Intangible Assets) (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
Goodwill and Other Intangible Assets
Accumulated Amortization	$ (669)		$ (669)		$ (603)
Intangible Assets Gross, Carrying Amount	1,880		1,880		1,835
Intangible Assets, Net Intangibles	1,211		1,211		1,232
Amortization	34	$ 36	69	$ 74
Customer and distributor relationships
Goodwill and Other Intangible Assets
Carrying Amount	947		947		951
Accumulated Amortization	(318)		(318)		(286)
Net Intangibles	629		629		665
Proprietary technology and patents
Goodwill and Other Intangible Assets
Carrying Amount	205		205		198
Accumulated Amortization	(101)		(101)		(93)
Net Intangibles	104		104		105
Trademarks
Goodwill and Other Intangible Assets
Carrying Amount	149		149		148
Accumulated Amortization	(46)		(46)		(41)
Net Intangibles	103		103		107
Software
Goodwill and Other Intangible Assets
Carrying Amount	392		392		355
Accumulated Amortization	(185)		(185)		(164)
Net Intangibles	207		207		191
Other
Goodwill and Other Intangible Assets
Carrying Amount	21		21		24
Accumulated Amortization	(19)		(19)		(19)
Net Intangibles	2		2		5
Indefinite-lived intangibles
Goodwill and Other Intangible Assets
Accumulated Amortization	0		0		0
Indefinite-lived intangibles	$ 166		$ 166		$ 159

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense related to finite-lived intangible assets	$ 34	$ 36	$ 69	$ 74
Impairment charge	$ 3

Derivative Financial Instrume_3

Derivative Financial Instruments (Effect of Deriative Instruments on Income Statement and Statement of Comprehensive Income) (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2019		Jun. 30, 2018		Jun. 30, 2019	Jun. 30, 2018
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI		$ 0		$ 9		$ 9	$ 9
Amount of gain reclassified from OCI into revenue		(1,345)		(1,317)		(2,582)	(2,534)
Reclassification out of Accumulated Other Comprehensive Income | Foreign Exchange Contract
Derivative Financial Instruments
Amount of gain reclassified from OCI into revenue	[1]	1		(1)		2	(2)
Amount of (gain) loss reclassified from OCI into cost of revenue	[1]	1		0		2	0
Cash Flow Hedging [Member] | Foreign Exchange Contract
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	[1]	0		(9)		(9)	(9)
Cash Flow Hedging [Member] | Cross Currency Swaps
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI		(8)	[1]	36	[1]	1	13	[1]
Cash Flow Hedging [Member] | Foreign Currency Denominated Debt
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI	[1]	(6)		42		$ 1	$ 19
Interest Expense | Cross Currency Swaps
Derivative Financial Instruments
Amount of gain (loss) recognized in OCI		$ 4		$ 0
[1]	Effective portion

Derivative Financial Instrume_4

Derivative Financial Instruments (Balance Sheet Location of Derivative Instruments) (Details) - Derivatives designated as hedging instruments - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Other current assets
Derivatives, Fair Value
Assets	$ 0	$ 3
Other Liabilities [Member]
Derivatives, Fair Value
Cash Flow Hedges	(5)	(1)
Other non-current liabilities
Derivatives, Fair Value
Net Investment Hedges	(45)	(46)
Long-term debt
Derivatives, Fair Value
Net Investment Hedges	$ 565	$ 566

Derivative Financial Instrume_5

Derivative Financial Instruments (Details Textual) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Mar. 11, 2016USD ($)	Mar. 11, 2016EUR (€)
Derivative [Line Items]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months		$ 6		$ 6
Revenues		1,345	$ 1,317	2,582	$ 2,534
Foreign Exchange Contract
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		247		247		$ 506
Derivatives designated as hedging instruments | Sell USD Buy EUR [Member]
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		97		97		191
Derivatives designated as hedging instruments | Sell EUR Buy PLN
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		18		18		37
Derivatives designated as hedging instruments | Buy USD Sell CDN [Member]
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		15		15		29
Derivatives designated as hedging instruments | Sell CDN Buy EUR [Member]
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		11		11		22
Derivatives designated as hedging instruments | Sell GBP Buy EUR
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		25		25		52
Derivatives designated as hedging instruments | Buy KR Sell EUR [Member]
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		77		77		168
Derivatives designated as hedging instruments | Cross Currency Swaps
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		729		729		426
Long-term debt | Derivatives designated as hedging instruments
Derivative Financial Instruments (Textual) [Abstract]
Net Investment Hedges		565		565		566
Senior Notes Due 2023, 2.250%
Derivative [Line Items]
Long-term Debt, Fair Value		608		608		$ 599
Senior Notes Due 2023, 2.250% | Senior Notes
Derivative Financial Instruments (Textual) [Abstract]
Interest on notes due							2.25%	2.25%
Face amount							$ 500	€ 500,000,000
Reclassification out of Accumulated Other Comprehensive Income | Foreign Exchange Contract
Derivative [Line Items]
Revenues	[1]	$ (1)	$ 1	$ (2)	$ 2
[1]	Effective portion

Accrued and Other Current Lia_3

Accrued and Other Current Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Accrued and Other Current Liabilities
Compensation and other employee benefits	$ 177	$ 194
Customer-related liabilities	144	129
Accrued taxes	77	85
Lease liabilities	63	0
Accrued warranty costs	37	44
Other accrued liabilities	98	94
Total accrued and other current liabilities	$ 596	$ 546

Credit Facilities and Debt (Sum

Credit Facilities and Debt (Summary of Debt Outstanding) (Details) - USD ($) $ in Millions		Jun. 30, 2019	Dec. 31, 2018
Credit Facilities and Long-Term Debt :
Debt issuance costs and unamortized discount	[1]	$ (18)	$ (19)
Long-term debt		2,051	2,051
Total debt		2,453	2,308
Short-term borrowings and current maturities of long-term debt		402	257
Senior Notes Due 2021, 4.875%
Credit Facilities and Long-Term Debt :
Senior Notes Due	[2]	600	600
Senior Notes Due 2023, 2.250%
Credit Facilities and Long-Term Debt :
Senior Notes Due	[2]	569	570
Senior Notes due 2026
Credit Facilities and Long-Term Debt :
Senior Notes Due	[2]	500	500
Senior Notes due 2046
Credit Facilities and Long-Term Debt :
Senior Notes Due	[2]	400	400
Commercial paper
Credit Facilities and Long-Term Debt :
Senior Notes Due		259	0
Term loan
Credit Facilities and Long-Term Debt :
Senior Notes Due		$ 143	$ 257
[1]	The debt issuance costs and unamortized discount are recognized as a reduction in the carrying value of the Senior Notes in the Condensed Consolidated Balance Sheets and are being amortized to interest expense in our Condensed Consolidated Income Statements over the expected remaining terms of the Senior Notes.
[2]	The fair value of our Senior Notes was determined using quoted prices in active markets for identical securities, which are considered Level 1 inputs. The fair value of our Senior Notes due 2021 was $632 million and $620 million as of June 30, 2019 and December 31, 2018 , respectively. The fair value of our Senior Notes due 2023 was $608 million and $599 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of our Senior Notes due 2026 was $506 million and $476 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of our Senior Notes due 2046 was $421 million and $397 million as of June 30, 2019 and December 31, 2018, respectively.

Credit Facilities and Debt (Tex

Credit Facilities and Debt (Textuals) (Details)

Sep. 20, 2011USD ($)

Jun. 30, 2019USD ($)

Jun. 03, 2019USD ($)

Jun. 03, 2019EUR (€)

Mar. 05, 2019USD ($)

Dec. 31, 2018USD ($)

Jan. 26, 2018USD ($)

Jan. 26, 2018EUR (€)

Oct. 11, 2016USD ($)

Mar. 11, 2016USD ($)

Mar. 11, 2016EUR (€)

Mar. 27, 2015USD ($)

Senior Notes

Debt Instrument

Redemption price percentage

101.00%

Line of Credit

Debt Instrument

Interest rate

0.45%

0.45%

Face amount

$ 256,000,000

€ 225,000,000

Long-term Line of Credit

$ 143,000,000

$ 257,000,000

Senior Notes Due 2021, 4.875%

Debt Instrument

Fair value of senior notes due

632,000,000

620,000,000

Interest rate

4.875%

Senior Notes Due

[1]

600,000,000

600,000,000

Face amount

$ 600,000,000

Senior Notes Due 2023, 2.250%

Debt Instrument

Fair value of senior notes due

608,000,000

599,000,000

Senior Notes Due

[1]

569,000,000

570,000,000

Senior Notes Due 2023, 2.250% | Senior Notes

Debt Instrument

Interest rate

2.25%

2.25%

Face amount

$ 500,000,000

€ 500,000,000

Senior Notes due 2026

Debt Instrument

Fair value of senior notes due

506,000,000

476,000,000

Interest rate

3.25%

Senior Notes Due

[1]

500,000,000

500,000,000

Face amount

$ 500,000,000

Senior Notes due 2046

Debt Instrument

Fair value of senior notes due

421,000,000

397,000,000

Interest rate

4.375%

Senior Notes Due

[1]

400,000,000

400,000,000

Face amount

$ 400,000,000

Term loan

Debt Instrument

Senior Notes Due

$ 143,000,000

257,000,000

2015 Five-Year Revolving Credit Facility | Letter of Credit

Debt Instrument

Debt instrument aggregate principal amount

$ 100,000,000

2015 Five-Year Revolving Credit Facility | Revolving Credit Facility

Debt Instrument

Term of debt

5 years

Debt instrument aggregate principal amount

600,000,000

Permitted increases in Credit Facility borrowing base

200,000,000

Maximum permitted increases in Credit Facility borrowing base

$ 800,000,000

2019 Five-Year Revolving Credit Facility | Revolving Credit Facility

Debt Instrument

Term of debt

5 years

Debt instrument aggregate principal amount

$ 800,000,000

Permitted increases in Credit Facility borrowing base

200,000,000

Maximum permitted increases in Credit Facility borrowing base

$ 1,000,000,000

US Dollar Commercial Paper Program

Debt Instrument

Face amount

$ 600,000,000

Commercial paper

Debt Instrument

Senior Notes Due

$ 259,000,000

$ 0

Euro Commercial Paper Program

Debt Instrument

Face amount

$ 569,000,000

€ 500,000,000

Commercial Paper

$ 259,000,000

Weighted-average interest rate

(0.22%)

[1]

The fair value of our Senior Notes was determined using quoted prices in active markets for identical securities, which are considered Level 1 inputs. The fair value of our Senior Notes due 2021 was $632 million and $620 million as of June 30, 2019 and December 31, 2018 , respectively. The fair value of our Senior Notes due 2023 was $608 million and $599 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of our Senior Notes due 2026 was $506 million and $476 million as of June 30, 2019 and December 31, 2018, respectively. The fair value of our Senior Notes due 2046 was $421 million and $397 million as of June 30, 2019 and December 31, 2018, respectively.

Postretirement Benefit Plans (S

Postretirement Benefit Plans (Summary of Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net periodic benefit cost:
Amortization of net actuarial loss	$ 1	$ 1		$ 1
Net periodic benefit cost	0	2	$ 1	4
Domestic defined benefit pension plans
Net periodic benefit cost:
Service cost	0	1	1	2
Interest cost	1	1	2	2
Expected return on plan assets	(2)	(1)	(4)	(3)
Amortization of net actuarial loss	1		1	1
Net periodic benefit cost	0	1	0	2
International defined benefit pension plans
Net periodic benefit cost:
Service cost	2	3	5	5
Interest cost	5	5	10	10
Expected return on plan assets	(9)	(10)	(18)	(19)
Amortization of net actuarial loss	2	3	4	5
Settlement/Curtailment	0	0	0	1
Net periodic benefit cost	$ 0	$ 1	$ 1	$ 2

Postretirement Benefit Plans _2

Postretirement Benefit Plans (Textuals) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Other postretirement benefit expense		$ 1	$ 1
Amortization of net actuarial loss	$ 1	$ 1		$ 1
Employer contribution to defined benefit plan			9	$ 12
Minimum
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Additional contributions	8		8
Maximum
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Additional contributions	$ 14		$ 14

Equity - Summary of Shareholder

Equity - Summary of Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ 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	Dec. 31, 2017
Dividends declared per share (usd per share)	$ 0.24	$ 0.24	$ 0.21	$ 0.21
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 2,808	$ 2,782	$ 2,557	$ 2,519	$ 2,782	$ 2,519
Cumulative effect of change in accounting principle							$ (3)
Sale of business		(2)
Net income	139	79	115	79	218	194
Other comprehensive income (loss), net	(11)	20	(87)	20
Dividends declared	(43)	(44)	(38)	(38)
Stock incentive plan activity	13	(2)	7	5
Repurchase of common stock		(25)	(25)	(25)
Ending balance	2,906	2,808	2,529	2,557	2,906	2,529
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	2	2	2	2	2	2
Ending balance	2	2	2	2	2	2
Capital in Excess of Par Value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,962	1,950	1,925	1,912	1,950	1,912
Stock incentive plan activity	13	12	7	13
Ending balance	1,975	1,962	1,932	1,925	1,975	1,932
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,674	1,639	1,282	1,227	1,639	1,227
Cumulative effect of change in accounting principle							14
Net income	139	79	115	79
Dividends declared	(43)	(44)	(38)	(38)
Ending balance	1,770	1,674	1,359	1,282	1,770	1,359
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(316)	(336)	(207)	(210)	(336)	(210)
Cumulative effect of change in accounting principle							$ (17)
Other comprehensive income (loss), net	(11)	20	(87)	20
Ending balance	(327)	(316)	(294)	(207)	(327)	(294)
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(526)	(487)	(461)	(428)	(487)	(428)
Stock incentive plan activity		(14)		(8)
Repurchase of common stock		(25)	(25)	(25)
Ending balance	(526)	(526)	(486)	(461)	(526)	(486)
Non-Controlling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	12	14	16	16	14	16
Sale of business		(2)
Net income
Other comprehensive income (loss), net
Ending balance	$ 12	$ 12	$ 16	$ 16	$ 12	$ 16

Share-Based Compensation Plan_2

Share-Based Compensation Plans (Textuals) (Details) - USD ($) shares in Thousands, $ 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
Share-based compensation	$ 7	$ 7	$ 16	$ 16
Shares Awarded (in shares)			330
Stock-Based Compensation Plans (Textual) [Abstract]
Proceeds from exercise of employee stock options			$ 8	$ 4
Total intrinsic value of options exercised			10.3
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Unamortized compensation expense	9		$ 9
Weighted average period			2 years 1 month 6 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Unamortized compensation expense	29		$ 29
Weighted average period			2 years 1 month 6 days
Shares Awarded (in shares)			253
Performance Based Shares
Share-based Compensation Arrangement by Share-based Payment Award
Unamortized compensation expense	$ 23		$ 23
Weighted average period			2 years

Share-Based Compensation Plan_3

Share-Based Compensation Plans (Summary of Stock Options Grant) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Summary of the changes in outstanding stock options
Outstanding, beginning of period (in shares)	2,125
Granted (in shares)	330
Exercised (in shares)	(244)
Forfeited (in shares)	(5)
Outstanding, end of period (in shares)	2,206	2,125
Options exercisable, ending of period (in shares)	1,533
Vested and expected, end of period (in shares)	2,130
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding, beginning of period (in usd per share)	$ 43.08
Granted (in usd per share)	74.07
Exercised (in usd per share)	35.47
Forfeited (in usd per share)	58.96
Outstanding, end of period (in usd per share)	48.53	$ 43.08
Options exercisable, end of period (in usd per share)	39.53
Vested and expected, end of period (in usd per share)	$ 47.66
Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Roll Forward]
Outstanding, weighted average remaining contractual term	6 years 8 months 12 days	6 years 6 months
Aggregate intrinsic value, outstanding	$ 78
Options exercisable, end of period	5 years 9 months 18 days
Aggregate intrinsic value, exercisable	$ 68
Vested and expected to vest, end of period	6 years 7 months 6 days
Aggregate intrinsic value, vested and expected to vest	$ 77

Share-Based Compensation Plan_4

Share-Based Compensation Plans (Stock Option Fair Value Assumptions) (Details) - Stock Options	6 Months Ended
	Jun. 30, 2019$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	24.10%
Risk-free interest rate	2.56%
Dividend yield	1.30%
Expected term (in years)	5 years 4 months 24 days
Weighted-average fair value / share (in usd per share)	$ 17.06

Share-Based Compensation Plan_5

Share-Based Compensation Plans (Summary of Restricted Stock Unit Grants) (Details) - Restricted Stock [Member] shares in Thousands	6 Months Ended
	Jun. 30, 2019$ / sharesshares
Summary of restricted stock activity
Outstanding, beginning of period (in shares) | shares	537
Granted (in shares) | shares	253
Vested (in shares) | shares	(237)
Forfeited (in shares) | shares	(25)
Outstanding, end of period (in shares) | shares	528
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, beginning of period (in usd per share) | $ / shares	$ 59.41
Granted (in usd per share) | $ / shares	74.28
Vested (in usd per share) | $ / shares	55.05
Forfeited (in usd per share) | $ / shares	66.82
Outstanding, end of period (in usd per share) | $ / shares	$ 68.05

Share-Based Compensation Plan_6

Share-Based Compensation Plans Share-Based Compensation Plans (Summary of ROIC Performance Share Unit Grants) (Details) - Return on Invested Capital Performance-Based Shares [Member] - Performance Based Shares shares in Thousands	6 Months Ended
	Jun. 30, 2019$ / sharesshares
Summary of performance share activity
Outstanding, beginning of period (in shares) | shares	274
Granted (in shares) | shares	76
Adjustment for Condition Achieved (in shares) | shares	74
Vested (in shares) | shares	(173)
Forfeited (in shares) | shares	(2)
Outstanding, end of period (in shares) | shares	249
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, beginning of period (in usd per share) | $ / shares	$ 52.11
Granted (in usd per share) | $ / shares	74.07
Adjustment for Condition Achieved (in usd per share) | $ / shares	37.86
Vested (in usd per share) | $ / shares	37.86
Forfeited (in usd per share) | $ / shares	60.76
Outstanding, end of period (in usd per share) | $ / shares	$ 64.45

Share-Based Compensation Plan_7

Share-Based Compensation Plans (Summary of Performance-Based Share Grants) (Details) - Total Shareholder Return Performance-Based Shares - Performance Based Shares shares in Thousands	6 Months Ended
	Jun. 30, 2019$ / sharesshares
Summary of performance share activity
Outstanding, beginning of period (in shares) | shares	274
Granted (in shares) | shares	76
Adjustment for Condition Achieved (in shares) | shares	74
Vested (in shares) | shares	(173)
Forfeited (in shares) | shares	(2)
Outstanding, end of period (in shares) | shares	249
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, beginning of period (in usd per share) | $ / shares	$ 61.04
Granted (in usd per share) | $ / shares	89.62
Adjustment for Condition Achieved (in usd per share) | $ / shares	37.86
Vested (in usd per share) | $ / shares	37.86
Forfeited (in usd per share) | $ / shares	60.76
Outstanding, end of period (in usd per share) | $ / shares	$ 75.67

Share-Based Compensation Plan_8

Share-Based Compensation Plans (TSR Performance-Based Shares Fair Value Assumptions) (Details) - Total Shareholder Return Performance-Based Shares - Performance Based Shares shares in Thousands	6 Months Ended
	Jun. 30, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | shares	(2)
Volatility	20.90%
Risk-free interest rate	2.52%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value | $ / shares	$ 60.76

Capital Stock (Textuals) (Detai

Capital Stock (Textuals) (Details) - 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	Aug. 24, 2015
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (less than $1 million)		$ 25	$ 25	$ 25
Share Repurchase Programs
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (in shares - less than 0.1 million)	0.1				0.5
Shares repurchased (less than $1 million)	$ 1				$ 39
2015 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount							$ 500
Shares repurchased (in shares - less than 0.1 million)	0		0.4		0.3	0.7
Shares repurchased (less than $1 million)	$ 0		$ 25		$ 25	$ 50
Remaining authorized amount of repurchase	$ 338				$ 338
Settlement of Employee Tax Withholding Obligations
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (in shares - less than 0.1 million)	0.1		0.1		0.2	0.1
Shares repurchased (less than $1 million)	$ 1		$ 1		$ 14	$ 8

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - 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	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		$ (336)			$ (336)
Cumulative effect of adoption							$ (3)
Foreign currency translation adjustment	$ (18)		$ (60)		11	$ (52)
Other non-operating income, net	3		2		5	5
Ending balance	(327)				(327)
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(316)	(336)	(207)	$ (210)	(336)	(210)
Cumulative effect of adoption							(17)
Foreign currency translation adjustment	(18)	29	(60)	8
Foreign currency gain reclassified into gain on sale of businesses	3	(4)	(19)	11
Changes in postretirement benefit plans				1
Other non-operating income, net	3
Income tax expense on amortization of postretirement benefit plan items	0	(1)	(1)	(1)
Unrealized loss on derivative hedge agreements		(9)	(9)
Income tax benefit on unrealized loss on derivative hedge agreements		1
Ending balance	(327)	(316)	(294)	(207)	(327)	(294)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(96)	(121)	(7)	(15)	(121)	(15)
Cumulative effect of adoption							(11)
Foreign currency translation adjustment	(18)	29	(60)	8
Foreign currency gain reclassified into gain on sale of businesses	3	(4)	(19)	11
Ending balance	(111)	(96)	(86)	(7)	(111)	(86)
Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(213)	(214)	(202)	(198)	(214)	(198)
Cumulative effect of adoption							$ (6)
Changes in postretirement benefit plans				1
Other non-operating income, net	3
Income tax expense on amortization of postretirement benefit plan items	0	(1)	(1)	(1)
Ending balance	(211)	(213)	(200)	(202)	(211)	(200)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(7)	(1)	2	3	(1)	3
Unrealized loss on derivative hedge agreements		(9)	(9)
Income tax benefit on unrealized loss on derivative hedge agreements		1
Ending balance	(5)	(7)	(8)	2	$ (5)	$ (8)
Other non-operating income | Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net	2	2	0	2
Other non-operating income | Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Amortization of prior service cost and net actuarial loss on postretirement benefit plans into other non-operating income (expense), net	2	2	0	2
Revenue | Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassification of unrealized gain (loss) on foreign exchange agreements	1	1	(1)	(1)
Revenue | Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassification of unrealized gain (loss) on foreign exchange agreements	1	1	$ (1)	$ (1)
Cost of Revenue | Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassification of unrealized gain (loss) on foreign exchange agreements	1	1
Cost of Revenue | Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassification of unrealized gain (loss) on foreign exchange agreements	$ 1	$ 1

Commitments and Contingencies_2

Commitments and Contingencies (Summary of Warranties) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Warranties
Warranty accrual – January 1	$ 60	$ 82
Net charges for product warranties in the period	11	13
Settlement of warranty claims	(23)	(24)
Foreign currency and other	0	1
Warranty accrual - June 30	$ 48	$ 72

Commitments and Contingencies_3

Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Loss Contingency Accrual	$ 6	$ 7
Guarantee amounts	305	275
Estimated environmental matters	$ 3	$ 4

Segment Information (Summary of

Segment Information (Summary of Operations by Segment) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Financial information for each reportable segment
Revenues		$ 1,345	$ 1,317	$ 2,582	$ 2,534
Operating income		171	171	280	284
Interest Expense		18	21	36	42
Other Nonoperating Income (Expense)		3	2	5	5
Gain (loss) from sale of business		0	(2)	1	(2)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		156	150	250	245
Depreciation and amortization		63	65	127	132
Capital expenditures		60	50	129	111
Water Infrastructure
Financial information for each reportable segment
Revenues		561	546	1,043	1,026
Operating income		98	92	149	141
Depreciation and amortization		16	16	31	33
Capital expenditures		21	17	51	40
Applied Water
Financial information for each reportable segment
Revenues		394	388	773	754
Operating income		62	61	118	111
Depreciation and amortization		6	6	12	11
Capital expenditures		4	5	10	14
Measurement & Control Solutions
Financial information for each reportable segment
Revenues		390	383	766	754
Operating income		26	31	42	64
Depreciation and amortization		35	36	71	73
Capital expenditures		29	22	53	46
Regional Selling Locations
Financial information for each reportable segment
Depreciation and amortization	[1]	4	5	8	10
Capital expenditures	[2]	5	3	9	8
Corporate and other
Financial information for each reportable segment
Operating income		(15)	(13)	(29)	(32)
Depreciation and amortization		2	2	5	5
Capital expenditures		$ 1	$ 3	$ 6	$ 3
[1]	Depreciation and amortization expense incurred by the Regional selling locations was included in an overall allocation of Regional selling location costs to the segments; however, a certain portion of that expense was not specifically identified to a segment. That expense is captured in this Regional selling location line.
[2]	Represents capital expenditures incurred by the Regional selling locations not allocated to the segments.

Segment Information (Textuals)

Segment Information (Textuals) (Details)	6 Months Ended
	Jun. 30, 2019Segment
Segment Information (Textual) [Abstract]
Number of reportable segments	3