10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the quarterly period ended
	June 30, 2020
	or
☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the transition period from __________ to __________

Commission File Number: 001-35797

Zoetis Inc.

(Exact name of registrant as specified in its charter)

Delaware			46-0696167
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)
10 Sylvan Way,	Parsippany,	New Jersey	07054
(Address of principal executive offices)			(Zip Code)

(973)-822-7000

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	ZTS	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities and Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). ☒ Yes ☐ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ☒ No

At July 31, 2020, there were 475,144,704 shares of common stock outstanding.

TABLE OF CONTENTS

		Page
PART I — FINANCIAL INFORMATION		1
Item 1.	Financial Statements	1
	Condensed Consolidated Statements of Income (Unaudited)	1
	Condensed Consolidated Statements of Comprehensive Income (Unaudited)	2
	Condensed Consolidated Balance Sheets (Unaudited)	3
	Condensed Consolidated Statements of Equity (Unaudited)	4
	Condensed Consolidated Statements of Cash Flows (Unaudited)	6
	Notes to Condensed Consolidated Financial Statements (Unaudited)	7
	Review Report of Independent Registered Public Accounting Firm	24
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	25
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	46
Item 4.	Controls and Procedures	46
PART II — OTHER INFORMATION		47
Item 1.	Legal Proceedings	47
Item 1A.	Risk Factors	47
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	49
Item 3.	Defaults Upon Senior Securities	49
Item 4.	Mine Safety Disclosures	49
Item 5.	Other Information	49
Item 6.	Exhibits	50
SIGNATURES		51

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

ZOETIS INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(UNAUDITED)

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS AND SHARES, EXCEPT PER SHARE DATA)	2020		2019		2020		2019
Revenue	$	1,548	$	1,547	$	3,082	$	3,002
Costs and expenses:
Cost of sales	451		465		910		983
Selling, general and administrative expenses	393		406		782		775
Research and development expenses	111		111		218		213
Amortization of intangible assets	40		39		80		77
Restructuring charges and certain acquisition-related costs	8		22		17		27
Interest expense, net of capitalized interest	58		55		111		111
Other (income)/deductions—net	5		(6)		(15)		(20)
Income before provision for taxes on income	482		455		979		836
Provision for taxes on income	106		84		180		153
Net income before allocation to noncontrolling interests	376		371		799		683
Less: Net loss attributable to noncontrolling interests	(1)		—		(1)		—
Net income attributable to Zoetis Inc.	$	377	$	371	$	800	$	683
Earnings per share attributable to Zoetis Inc. stockholders:
Basic	$	0.79	$	0.77	$	1.68	$	1.43
Diluted	$	0.79	$	0.77	$	1.67	$	1.41
Weighted-average common shares outstanding:
Basic	475.3		478.8		475.4		479.2
Diluted	478.1		482.3		478.6		482.7
Dividends declared per common share	$	0.200	$	0.164	$	0.400	$	0.328

See notes to condensed consolidated financial statements.

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ZOETIS INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(UNAUDITED)

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Net income before allocation to noncontrolling interests	$	376	$	371	$	799	$	683
Other comprehensive loss, net of taxes:
Unrealized (losses)/gains on derivatives for cash flow hedges, net	(4)		1		(32)		1
Unrealized (losses)/gains on derivatives for net investment hedges, net	(14)		(4)		3		4
Foreign currency translation adjustments, net	(57)		(68)		(101)		(45)
Total other comprehensive loss, net of tax	(75)		(71)		(130)		(40)
Comprehensive income before allocation to noncontrolling interests	301		300		669		643
Less: Comprehensive loss attributable to noncontrolling interests	(1)		—		(1)		—
Comprehensive income attributable to Zoetis Inc.	$	302	$	300	$	670	$	643

See notes to condensed consolidated financial statements.

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ZOETIS INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

	June 30,		December 31,
	2020		2019
(MILLIONS OF DOLLARS, EXCEPT SHARE AND PER SHARE DATA)	(Unaudited)
Assets
Cash and cash equivalents(a)	$	3,353	$	1,934
Accounts receivable, less allowance for doubtful accounts of $20 in 2020 and $21 in 2019	984		1,086
Inventories	1,584		1,410
Other current assets	364		318
Total current assets	6,285		4,748
Property, plant and equipment, less accumulated depreciation of $1,818 in 2020 and $1,737 in 2019	2,011		1,940
Operating lease right of use assets	181		189
Goodwill	2,629		2,592
Identifiable intangible assets, less accumulated amortization	1,783		1,890
Noncurrent deferred tax assets	88		88
Other noncurrent assets	92		98
Total assets	$	13,069	$	11,545
Liabilities and Equity
Short-term borrowings	$	1	$	—
Current portion of long-term debt	500		500
Accounts payable	335		301
Dividends payable	95		95
Accrued expenses	475		543
Accrued compensation and related items	170		276
Income taxes payable	170		36
Other current liabilities	65		55
Total current liabilities	1,811		1,806
Long-term debt, net of discount and issuance costs	7,194		5,947
Noncurrent deferred tax liabilities	395		434
Operating lease liabilities	155		164
Other taxes payable	256		257
Other noncurrent liabilities	271		229
Total liabilities	10,082		8,837
Commitments and contingencies (Note 16)
Stockholders' equity:
Common stock, $0.01 par value: 6,000,000,000 authorized; 501,891,243 and 501,891,243 shares issued; 474,999,478 and 475,528,210 shares outstanding at June 30, 2020, and December 31, 2019, respectively	5		5
Treasury stock, at cost, 26,891,765 and 26,363,033 shares of common stock at June 30, 2020, and December 31, 2019, respectively	(2,245)		(2,042)
Additional paid-in capital	1,030		1,044
Retained earnings	5,048		4,427
Accumulated other comprehensive loss	(856)		(726)
Total Zoetis Inc. equity	2,982		2,708
Equity attributable to noncontrolling interests	5		—
Total equity	2,987		2,708
Total liabilities and equity	$	13,069	$	11,545

^(a) As of June 30, 2020, and December 31, 2019, includes $0 million and $2 million, respectively, of restricted cash.

See notes to condensed consolidated financial statements.

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ZOETIS INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

(UNAUDITED)

Three months ended June 30, 2020
	Zoetis
												Accumulated		Equity
								Additional				Other		Attributable to
		Common Stock			Treasury Stock			Paid-in		Retained		Comprehensive		Noncontrolling		Total
(MILLIONS OF DOLLARS AND SHARES)		Shares (a)	Amount		Shares (a)	Amount		Capital		Earnings		Loss		Interests		Equity
Balance, March 31, 2020		501.9	$	5	27.0	$	(2,252)	$	1,017	$	4,764	$	(781)	$	—	$	2,753
Net income		—	—		—	—		—		377		—		(1)		376
Other comprehensive loss		—	—		—	—		—		—		(75)		—		(75)
Consolidation of noncontrolling interests		—	—		—	—		—		—		—		6		6
Share-based compensation awards (b)		—	—		(0.1)	7		13		2		—		—		22
Dividends declared		—	—		—	—		—		(95)		—		—		(95)
Balance, June 30, 2020		501.9	$	5	26.9	$	(2,245)	$	1,030	$	5,048	$	(856)	$	5	$	2,987
Three months ended June 30, 2019
	Zoetis
												Accumulated		Equity
								Additional				Other		Attributable to
		Common Stock			Treasury Stock			Paid-in		Retained		Comprehensive		Noncontrolling		Total
(MILLIONS OF DOLLARS AND SHARES)		Shares (a)	Amount		Shares (a)	Amount		Capital		Earnings		Loss		Interests		Equity
Balance, March 31, 2019		501.9	$	5	22.9	$	(1,593)	$	1,008	$	3,495	$	(598)	$	—	$	2,317
Net income		—	—		—	—		—		371		—		—		371
Other comprehensive loss		—	—		—	—		—		—		(71)		—		(71)
Share-based compensation awards (b)		—	—		(0.2)	11		11		—		—		—		22
Treasury stock acquired (c)		—	—		1.4	(150)		—		—		—		—		(150)
Dividends declared		—	—		—	—		—		(78)		—		—		(78)
Balance, June 30, 2019		501.9	$	5	24.1	$	(1,732)	$	1,019	$	3,788	$	(669)	$	—	$	2,411

^(a) Shares may not add due to rounding.

^(b) Includes the issuance of shares of Zoetis Inc. common stock and the reacquisition of shares of treasury stock associated with exercises of employee share-based awards. Also includes the reacquisition of shares of treasury stock associated with the vesting of employee share-based awards to satisfy tax withholding requirements. For additional information, see Note 12. Share-based Payments and Note 13. Stockholders' Equity.

^(c) Reflects the acquisition of treasury shares in connection with the share repurchase program. For additional information see Note 13. Stockholders' Equity.

See notes to condensed consolidated financial statements.

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ZOETIS INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - Continued

(UNAUDITED)

Six months ended June 30, 2020
	Zoetis
												Accumulated		Equity
								Additional				Other		Attributable to
		Common Stock			Treasury Stock			Paid-in		Retained		Comprehensive		Noncontrolling		Total
(MILLIONS OF DOLLARS AND SHARES)		Shares (a)	Amount		Shares (a)	Amount		Capital		Earnings		Loss		Interests		Equity
Balance December 31, 2019		501.9	$	5	26.4	$	(2,042)	$	1,044	$	4,427	$	(726)	$	—	$	2,708
Net income		—	—		—	—		—		800		—		(1)		799
Other comprehensive loss		—	—		—	—		—		—		(130)		—		(130)
Consolidation of noncontrolling interests		—	—		—	—		—		—		—		6		6
Share-based compensation awards (b)		—	—		(1.3)	47		(15)		11		—		—		43
Treasury stock acquired (c)		—	—		1.8	(250)		—		—		—		—		(250)
Employee benefit plan contribution from Pfizer Inc. (d)		—	—		—	—		1		—		—		—		1
Dividends declared		—	—		—	—		—		(190)		—		—		(190)
Balance, June 30, 2020		501.9	$	5	26.9	$	(2,245)	$	1,030	$	5,048	$	(856)	$	5	$	2,987
Six months ended June 30, 2019
	Zoetis
												Accumulated		Equity
								Additional				Other		Attributable to
		Common Stock			Treasury Stock			Paid-in		Retained		Comprehensive		Noncontrolling		Total
(MILLIONS OF DOLLARS AND SHARES)		Shares (a)	Amount		Shares (a)	Amount		Capital		Earnings		Loss		Interests		Equity
Balance December 31, 2018		501.9	$	5	22.3	$	(1,487)	$	1,026	$	3,270	$	(629)	$	—	$	2,185
Net income		—	—		—	—		—		683		—		—		683
Other comprehensive loss		—	—		—	—		—		—		(40)		—		(40)
Share-based compensation awards (b)		—	—		(1.4)	55		(8)		(8)		—		—		39
Treasury stock acquired (c)		—	—		3.1	(300)		—		—		—		—		(300)
Employee benefit plan contribution from Pfizer Inc.(d)		—	—		—	—		1		—		—		—		1
Dividends declared		—	—		—	—		—		(157)		—		—		(157)
Balance, June 30, 2019		501.9	$	5	24.1	$	(1,732)	$	1,019	$	3,788	$	(669)	$	—	$	2,411

^(a) Shares may not add due to rounding.

^(b) Includes the issuance of shares of Zoetis Inc. common stock and the reacquisition of shares of treasury stock associated with exercises of employee share-based awards. Also includes the reacquisition of shares of treasury stock associated with the vesting of employee share-based awards to satisfy tax withholding requirements. For additional information, see Note 12. Share-based Payments and Note 13. Stockholders' Equity.

^(c) Reflects the acquisition of treasury shares in connection with the share repurchase program. For additional information see Note 13. Stockholders' Equity.

^(d) Represents contributed capital from Pfizer Inc. associated with service credit continuation for certain Zoetis Inc. employees in Pfizer Inc.'s U.S. qualified defined benefit and U.S. retiree medical plans.

See notes to condensed consolidated financial statements.

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ZOETIS INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

	Six Months Ended
	June 30,
(MILLIONS OF DOLLARS)	2020		2019
Operating Activities
Net income before allocation to noncontrolling interests	$	799	$	683
Adjustments to reconcile net income before noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization expense	221		196
Share-based compensation expense	32		35
Asset write-offs and asset impairments	9		1
Net gain on sale of assets	(18)		—
Provision for losses on inventory	32		29
Deferred taxes	(38)		(22)
Employee benefit plan contribution from Pfizer Inc.	1		1
Loss on treasury locks	(6)		—
Other non-cash adjustments	2		—
Other changes in assets and liabilities, net of acquisitions and divestitures:
Accounts receivable	71		29
Inventories	(233)		(50)
Other assets	(42)		(35)
Accounts payable	37		(22)
Other liabilities	(156)		(119)
Other tax accounts, net	135		(19)
Net cash provided by operating activities	846		707
Investing Activities
Capital expenditures	(184)		(166)
Other acquisitions	(78)		—
Proceeds from maturities and redemptions of investments	—		76
Net proceeds on swaps designated as net investment hedges	20		—
Net proceeds from sale of assets	23		—
Other investing activities	(2)		8
Net cash used in investing activities	(221)		(82)
Financing Activities
Increase/(decrease) in short-term borrowings, net	1		(9)
Proceeds from issuance of long-term debt—senior notes, net of discount	1,240		—
Payment of contingent consideration related to previously acquired assets	—		(8)
Acquisition of a noncontrolling interest, net of cash acquired	3		—
Share-based compensation-related proceeds, net of taxes paid on withholding shares	21		5
Purchases of treasury stock	(250)		(300)
Cash dividends paid	(190)		(157)
Payment of debt issuance costs	(12)		—
Net cash provided by/(used in) financing activities	813		(469)
Effect of exchange-rate changes on cash and cash equivalents	(19)		(3)
Net increase in cash and cash equivalents	1,419		153
Cash and cash equivalents at beginning of period	1,934		1,602
Cash and cash equivalents at end of period	$	3,353	$	1,755
Supplemental cash flow information
Cash paid during the period for:
Income taxes	$	91	$	212
Interest, net of capitalized interest	123		123
Amounts included in the measurement of lease liabilities	20		19
Non-cash transactions:
Capital expenditures	5		9
Lease obligations obtained in exchange for right-of-use assets	13		223
Dividends declared, not paid	95		78

See notes to condensed consolidated financial statements.

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ZOETIS INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

1. Organization

Zoetis Inc. (including its subsidiaries, collectively, Zoetis, the company, we, us or our) is a global leader in the discovery, development, manufacture and commercialization of animal health medicines, vaccines and diagnostic products with a focus on both livestock and companion animals. We organize and operate our business in two geographic regions: the United States (U.S.) and International.

We directly market our products in approximately 45 countries across North America, Europe, Africa, Asia, Australia and South America. Our products are sold in more than 100 countries, including developed markets and emerging markets. We have a diversified business, marketing products across eight core species: cattle, swine, poultry, fish and sheep (collectively, livestock) and dogs, cats and horses (collectively, companion animals); and within seven major product categories: vaccines, parasiticides, anti-infectives, dermatology, other pharmaceuticals, medicated feed additives and animal health diagnostics.

2. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements were prepared following the requirements of the Securities and Exchange Commission (SEC) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America (U.S. GAAP) can be condensed or omitted. Balance sheet amounts and operating results for subsidiaries operating outside the U.S. are as of and for the six-month periods ended May 31, 2020 and May 31, 2019.

Revenue, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be representative of those for the full year.

Certain reclassifications of prior year information have been made to conform to the current year's presentation.

We are responsible for the unaudited condensed consolidated financial statements included in this Form 10-Q. The condensed consolidated financial statements include all normal and recurring adjustments that are considered necessary for the fair presentation of our financial position and operating results. The information included in this interim report should be read in conjunction with the financial statements and accompanying notes included in our 2019 Annual Report on Form 10-K.

3. Accounting Standards

Recently Adopted Accounting Standards

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Topic 350-40), an accounting standards update which expands the scope of costs associated with cloud computing arrangements that must be capitalized. Under the new guidance, costs associated with implementing a cloud computing arrangement that is a service contract must be capitalized and expensed over the term of the hosting arrangement. We adopted this guidance as of January 1, 2020, the required effective date, on a prospective basis. The adoption did not have a significant impact on our consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments (Topic 326), an accounting standards update which requires an entity to measure and recognize expected credit losses for certain financial instruments, including trade receivables, as an allowance that reflects the entity's current estimate of credit losses expected to be incurred. For available-for-sale debt securities with unrealized losses, the standard requires allowances to be recorded instead of reducing the amortized cost of the investment. We adopted this guidance as of January 1, 2020, the required effective date, on a prospective basis. The adoption did not have a significant impact on our consolidated financial statements.

Recently Issued Accounting Standards

In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The new guidance provides temporary optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate (LIBOR) or another reference rate expected to be discontinued because of reference rate reform. Adoption of the provisions of ASU 2020-04 is optional and effective as of March 12, 2020, but is only available through December 31, 2022. We are currently evaluating the impact that the new guidance will have on our consolidated financial statements and related disclosures, as well as the timing of the potential adoption.

4. Revenue

A. Revenue from Product Sales

We offer a diversified portfolio of products which allows us to capitalize on local and regional customer needs. Generally, our products are promoted to veterinarians and livestock producers by our sales organization which includes sales representatives and technical and veterinary operations specialists, and then sold directly by us or through distributors, retailers and e-commerce outlets. The depth of our product portfolio enables us to address the varying needs of customers in different species and geographies. Many of our top selling product lines are distributed

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across both of our operating segments, leveraging our research and development (R&D) operations and manufacturing and supply chain network.

Over the course of our history, we have focused on developing a diverse portfolio of animal health products, including medicines, vaccines and diagnostics, complemented by biodevices, genetic tests and a range of services. We refer to a single product in all brands, or its dosage forms for all species, as a product line. We have approximately 300 comprehensive product lines, including products for both livestock and companion animals across each of our major product categories.

In the fourth quarter of 2019, the company modified the list of major product categories to include a category for dermatology products, which was previously included within other pharmaceutical products. The prior period presentation has been revised to reflect the new product categories.

Our major product categories are:

•vaccines: biological preparations that help prevent diseases of the respiratory, gastrointestinal and reproductive tracts or induce a specific immune response;

•parasiticides: products that prevent or eliminate external and internal parasites such as fleas, ticks and worms;

•anti-infectives: products that prevent, kill or slow the growth of bacteria, fungi or protozoa;

•dermatology products: products that relieve itch associated with allergic conditions and atopic dermatitis;

•other pharmaceutical products: pain and sedation, antiemetic, reproductive, and oncology products;

•medicated feed additives: products added to animal feed that provide medicines to livestock; and

•animal health diagnostics: portable blood and urine analysis systems and point-of-care diagnostic products, including instruments and reagents, rapid immunoassay tests, reference laboratory kits and blood glucose monitors.

Our remaining revenue is derived from other non-pharmaceutical product categories, such as nutritionals and agribusiness, as well as products and services in smaller but fast growing areas, including biodevices, genetic tests and precision livestock farming.

Our livestock products primarily help prevent or treat diseases and conditions to enable the cost-effective production of safe, high-quality animal protein. Human population growth and increasing standards of living are important long-term growth drivers for our livestock products in three major ways. First, population growth and increasing standards of living drive increased demand for improved nutrition, particularly animal protein. Second, population growth leads to increased natural resource constraints driving a need for enhanced productivity. Finally, as standards of living improve, there is increased focus on food quality and safety.

Our companion animal products help extend and improve the quality of life for pets; increase convenience and compliance for pet owners; and help veterinarians improve the quality of their care and the efficiency of their businesses. Growth in the companion animal medicines, vaccines and diagnostics sector is driven by economic development, related increases in disposable income and increases in pet ownership and spending on pet care. Companion animals are also living longer, receiving increased medical treatment and benefiting from advances in animal health medicines and vaccines.

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The following tables present our revenue disaggregated by geographic area, species, and major product category:

Revenue by geographic area

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
United States	$	823	$	780	$	1,609	$	1,498
Australia	51		49		94		97
Brazil	56		74		119		134
Canada	54		54		94		95
Chile	25		22		48		42
China	66		56		132		116
France	24		27		53		59
Germany	40		39		74		76
Italy	14		28		35		56
Japan	53		41		94		78
Mexico	26		30		58		58
Spain	24		30		52		57
United Kingdom	26		42		81		99
Other developed markets	90		88		177		172
Other emerging markets	159		162		325		321
	1,531		1,522		3,045		2,958
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

Revenue by major species

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
U.S.
Companion animal	$	594	$	500	$	1,093	$	945
Livestock	229		280		516		553
	823		780		1,609		1,498
International
Companion animal	288		298		586		582
Livestock	420		444		850		878
	708		742		1,436		1,460
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

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Revenue by species

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Companion Animal:
Dogs and Cats	$	831	$	754	$	1,577	$	1,442
Horses	51		44		102		85
	882		798		1,679		1,527
Livestock:
Cattle	320		379		690		759
Swine	146		158		303		307
Poultry	135		143		283		282
Fish	30		25		56		48
Sheep and other	18		19		34		35
	649		724		1,366		1,431
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

Revenue by major product category

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Vaccines	$	336	$	370	$	685	$	728
Parasiticides	307		266		562		497
Anti-infectives	241		293		521		579
Dermatology	227		185		424		344
Other pharmaceuticals	192		187		389		377
Medicated feed additives	109		115		234		227
Animal health diagnostics	69		65		129		125
Other non-pharmaceuticals	50		41		101		81
	1,531		1,522		3,045		2,958
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

B. Revenue from Contracts with Customers

Contract liabilities reflected within Other current liabilities as of December 31, 2019 and December 31, 2018, and subsequently recognized as revenue during the first six months of 2020 and 2019 were approximately $5 million and $4 million, respectively. Contract liabilities as of June 30, 2020 and December 31, 2019 were approximately $10 million and $11 million, respectively.

Estimated future revenue expected to be generated from long-term contracts with unsatisfied performance obligations as of June 30, 2020 is not material.

5. Acquisitions and Divestitures

A. Acquisitions

Other Acquisitions

In the second quarter of 2020, we completed the acquisition of Performance Livestock Analytics, a cloud-based technology company in the precision livestock business. We also entered into an option purchase agreement as part of a research and development arrangement with a Belgian company, a variable interest entity of which Zoetis is the primary beneficiary and now consolidating within our results. In the first quarter of 2020, we completed the acquisition of Ethos Diagnostic Science, a veterinary reference laboratory business with labs across the U.S. These transactions did not have a significant impact on our consolidated financial statements.

During 2019, we completed the acquisitions of Platinum Performance, a nutrition-focused animal health business for companion animals and Phoenix Lab and ZNLabs, both full service veterinary reference laboratory companies with networks of labs across the U.S. These transactions did not have a significant impact on our consolidated financial statements.

B. Divestitures

During the six months ended June 30, 2020, we received cash proceeds of $20 million resulting from a payment received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites.

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6. Restructuring Charges and Other Costs Associated with Acquisitions, Cost-Reduction and Productivity Initiatives

In connection with our cost-reduction/productivity initiatives, we typically incur costs and charges associated with site closings and other facility rationalization actions, workforce reductions and the expansion of shared services, including the development of global systems. In connection with our acquisition activity, we typically incur costs and charges associated with executing the transactions, integrating the acquired operations, which may include expenditures for consulting and the integration of systems and processes, product transfers and restructuring the consolidated company, which may include charges related to employees, assets and activities that will not continue in the consolidated company. All operating functions can be impacted by these actions, including sales and marketing, manufacturing and R&D, as well as functions such as information technology, shared services and corporate operations.

The components of costs incurred in connection with restructuring initiatives, acquisitions and cost-reduction/productivity initiatives are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Restructuring charges and certain acquisition-related costs:
Integration costs(a)	$	6	$	8	$	12	$	9
Restructuring charges(b):
Employee termination costs	2		14		5		18
Total Restructuring charges and certain acquisition-related costs	$	8	$	22	$	17	$	27

^(a) Integration costs represent external, incremental costs directly related to integrating acquired businesses and primarily include expenditures for consulting and the integration of systems and processes, as well as product transfer costs.

^(b) The restructuring charges for the three and six months ended June 30, 2020 primarily relate to CEO transition-related costs which are associated with Manufacturing/research/corporate.

The restructuring charges for the three and six months ended June 30, 2019 primarily relate to the acquisition of Abaxis which are associated with Manufacturing/research/corporate.

(MILLIONS OF DOLLARS)	Accrual(a)
Balance, December 31, 2019(b)	$	45
Provision	5
Utilization and other(c)	(12)
Balance, June 30, 2020(b)	$	38

^(a)  Changes in our restructuring accrual represents employee termination costs.

^(b) At June 30, 2020, and December 31, 2019, included in Accrued expenses ($15 million and $23 million, respectively) and Other noncurrent liabilities ($23 million and $22 million, respectively).

^(c)  Includes adjustments for foreign currency translation.

7. Other (Income)/Deductions—Net

The components of Other (income)/deductions—net are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Royalty-related income	$	(5)	$	(3)	$	(6)	$	(8)
Interest income	(2)		(9)		(8)		(19)
Identifiable intangible asset impairment charges	3		—		3		—
Net gain on sale of assets(a)	(1)		—		(18)		—
Foreign currency loss(b)	6		7		11		7
Impairment of an equity investment	4		—		4		—
Other, net	—		(1)		(1)		—
Other (income)/deductions—net	$	5	$	(6)	$	(15)	$	(20)

^(a) For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites. 

^(b) Primarily driven by costs related to hedging and exposures to certain emerging and developed market currencies.

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8. Income Taxes

A. Taxes on Income

Our effective tax rate was 22.0% for the three months ended June 30, 2020, compared with 18.5% for the three months ended June 30, 2019. The higher effective tax rate for the three months ended June 30, 2020, was primarily attributable to:

•changes in the jurisdictional mix of earnings, which includes the impact of the location of earnings from operations and repatriation costs. The jurisdictional mix of earnings can vary as a result of repatriation decisions and operating fluctuations in the normal course of business and the impact of non-deductible items;

•an $8 million net discrete tax benefit recorded in the three months ended June 30, 2019, primarily related to the effective settlement of certain issues with non-U.S. tax authorities; and

•a $1 million and $2 million discrete tax benefit recorded in the three months ended June 30, 2020 and 2019, respectively, related to the excess tax benefits for share-based payments,

partially offset by:

•a $1 million discrete tax benefit recorded in the three months ended June 30, 2020 related to a remeasurement of deferred taxes resulting from the integration of acquired businesses; and

•a $1 million discrete tax benefit recorded in the three months ended June 30, 2020 related to a remeasurement of deferred taxes as a result of changes in non-U.S. statutory tax rates.

Our effective tax rate was 18.4% for the six months ended June 30, 2020, compared with 18.3% for the six months ended June 30, 2019. The higher effective tax rate for the six months ended June 30, 2020, was primarily attributable to:

•changes in the jurisdictional mix of earnings, which includes the impact of the location of earnings from operations and repatriation costs. The jurisdictional mix of earnings can vary as a result of repatriation decisions and operating fluctuations in the normal course of business and the impact of non-deductible items; and

•a $16 million net discrete tax benefit recorded in the six months ended June 30, 2019, primarily related to the effective settlement of certain issues with non-U.S. tax authorities and a prior period tax adjustment,

partially offset by:

•a $24 million and $15 million discrete tax benefit recorded in the six months ended June 30, 2020 and 2019, respectively, related to the excess tax benefits for share-based payments; and

•a $7 million discrete tax benefit recorded in the six months ended June 30, 2020 related to a remeasurement of deferred taxes resulting from the integration of acquired businesses.

B. Deferred Taxes

As of June 30, 2020, the total net deferred income tax liability of $307 million is included in Noncurrent deferred tax assets ($88 million) and Noncurrent deferred tax liabilities ($395 million).

As of December 31, 2019, the total net deferred income tax liability of $346 million is included in Noncurrent deferred tax assets ($88 million) and Noncurrent deferred tax liabilities ($434 million).

C. Tax Contingencies

As of June 30, 2020, the net tax liabilities associated with uncertain tax positions of $186 million (exclusive of interest and penalties related to uncertain tax positions of $13 million) are included in Noncurrent deferred tax assets and Other noncurrent assets ($2 million) and Other taxes payable ($184 million).

As of December 31, 2019, the net tax liabilities associated with uncertain tax positions of $182 million (exclusive of interest and penalties related to uncertain tax positions of $12 million) are included in Noncurrent deferred tax assets and Other noncurrent assets ($2 million) and Other taxes payable ($180 million).

Our tax liabilities for uncertain tax positions relate primarily to issues common among multinational corporations. Any settlements or statute of limitations expirations could result in a significant decrease in our uncertain tax positions. Substantially all of these unrecognized tax benefits, if recognized, would impact our effective income tax rate. We do not expect that within the next twelve months any of our uncertain tax positions could significantly decrease as a result of settlements with taxing authorities or the expiration of the statutes of limitations. Our assessments are based on estimates and assumptions that have been deemed reasonable by management, but our estimates of uncertain tax positions and potential tax benefits may not be representative of actual outcomes, and any variation from such estimates could materially affect our financial statements in the period of settlement or when the statutes of limitations expire, as we treat these events as discrete items in the period of resolution. Finalizing audits with the relevant taxing authorities can include formal administrative and legal proceedings, and, as a result, it is difficult to estimate the timing and range of possible changes related to our uncertain tax positions, and such changes could be significant.

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9. Financial Instruments

A. Debt

Credit Facilities

In December 2016, we entered into an amended and restated revolving credit agreement with a syndicate of banks providing for a multi-year $1.0 billion senior unsecured revolving credit facility (the credit facility). In December 2018, the maturity for the amended and restated revolving credit agreement was extended through December 2023. Subject to certain conditions, we have the right to increase the credit facility to up to $1.5 billion. The credit facility contains a financial covenant requiring us to not exceed a maximum total leverage ratio (the ratio of consolidated net debt as of the end of the period to consolidated Earnings Before Interest, Income Taxes, Depreciation and Amortization (EBITDA) for such period) of 3.50:1. Upon entering into a material acquisition, the maximum total leverage ratio increases to 4.00:1, and extends until the fourth full consecutive fiscal quarter ended immediately following the consummation of a material acquisition.

The credit facility also contains a financial covenant requiring that we maintain a minimum interest coverage ratio (the ratio of EBITDA at the end of the period to interest expense for such period) of 3.50:1. In addition, the credit facility contains other customary covenants.

We were in compliance with all financial covenants as of June 30, 2020, and December 31, 2019. There were no amounts drawn under the credit facility as of June 30, 2020 or December 31, 2019.

We have additional lines of credit and other credit arrangements with a group of banks and other financial intermediaries for general corporate purposes. We maintain cash and cash equivalent balances in excess of our outstanding short-term borrowings. As of June 30, 2020, we had access to $75 million of lines of credit which expire at various times through 2020 and are generally renewed annually. There were $1.5 million of borrowings outstanding related to these facilities as of June 30, 2020 and no borrowings outstanding as of December 31, 2019.

Commercial Paper Program

In February 2013, we entered into a commercial paper program with a capacity of up to $1.0 billion. As of June 30, 2020 and December 31, 2019, there was no commercial paper outstanding under this program.

Senior Notes and Other Long-Term Debt

On May 12, 2020, we issued $1.25 billion aggregate principal amount of our senior notes (2020 senior notes), with an original issue discount of $10 million. These notes are comprised of $750 million aggregate principal amount of 2.000% senior notes due 2030 and $500 million aggregate principal amount of 3.000% senior notes due 2050. The net proceeds will be used to repay the principal of our 3.450% senior notes due 2020 in the aggregate principal amount of $500 million and for general corporate purposes.

On August 20, 2018, we issued $1.5 billion aggregate principal amount of our senior notes (2018 senior notes), with an original issue discount of $4 million. On September 12, 2017, we issued $1.25 billion aggregate principal amount of our senior notes (2017 senior notes), with an original issue discount of $7 million. On November 13, 2015, we issued $1.25 billion aggregate principal amount of our senior notes (2015 senior notes), with an original issue discount of $2 million. On January 28, 2013, we issued $3.65 billion aggregate principal amount of our senior notes (2013 senior notes) in a private placement, with an original issue discount of $10 million.

The 2013, 2015, 2017, 2018 and 2020 senior notes are governed by an indenture and supplemental indenture (collectively, the indenture) between us and Deutsche Bank Trust Company Americas, as trustee. The indenture contains certain covenants, including limitations on our and certain of our subsidiaries' ability to incur liens or engage in sale-leaseback transactions. The indenture also contains restrictions on our ability to consolidate, merge or sell substantially all of our assets. In addition, the indenture contains other customary terms, including certain events of default, upon the occurrence of which the 2013, 2015, 2017, 2018 and 2020 senior notes may be declared immediately due and payable.

Pursuant to the indenture, we are able to redeem the 2013, 2015, 2017 and 2020 senior notes and the 2018 fixed rate senior notes or any series, in whole or in part, at any time by paying a “make whole” premium, plus accrued and unpaid interest to, but excluding, the date of redemption. The 2018 floating rate senior notes are not redeemable at our option prior to their maturity date. Pursuant to our tax matters agreement with Pfizer, we will not be permitted to redeem the 2013 senior notes due 2023 pursuant to this optional redemption provision, except under limited circumstances. Upon the occurrence of a change of control of us and a downgrade of the 2013, 2015, 2017, 2018 and 2020 senior notes below an investment grade rating by each of Moody's Investors Service, Inc. and Standard & Poor's Ratings Services, we are, in certain circumstances, required to make an offer to repurchase all of the outstanding 2013, 2015, 2017, 2018 and 2020 senior notes at a price equal to 101% of the aggregate principal amount of the 2013, 2015, 2017, 2018 and 2020 senior notes together with accrued and unpaid interest to, but excluding, the date of repurchase.

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The components of our long-term debt are as follows:

	June 30,		December 31,
(MILLIONS OF DOLLARS)	2020		2019
3.450% 2015 senior notes due 2020	$	500	$	500
2018 floating rate (three-month USD LIBOR plus 0.44%) senior notes due 2021	300		300
3.250% 2018 senior notes due 2021	300		300
3.250% 2013 senior notes due 2023	1,350		1,350
4.500% 2015 senior notes due 2025	750		750
3.000% 2017 senior notes due 2027	750		750
3.900% 2018 senior notes due 2028	500		500
2.000% 2020 senior notes due 2030	750		—
4.700% 2013 senior notes due 2043	1,150		1,150
3.950% 2017 senior notes due 2047	500		500
4.450% 2018 senior notes due 2048	400		400
3.000% 2020 senior notes due 2050	500		—
	7,750		6,500
Unamortized debt discount / debt issuance costs	(70)		(51)
Less current portion of long-term debt	500		500
Cumulative fair value adjustment for interest rate swap contracts	14		(2)
Long-term debt, net of discount and issuance costs	$	7,194	$	5,947

The fair value of our long-term debt was $8,326 million and $6,587 million as of June 30, 2020, and December 31, 2019, respectively, and has been determined using a third-party matrix-pricing model that uses significant inputs derived from, or corroborated by, observable market data and Zoetis’ credit rating (Level 2 inputs).

The principal amount of long-term debt outstanding, as of June 30, 2020, matures in the following years:

											After
(MILLIONS OF DOLLARS)	2020		2021		2022		2023		2024		2024		Total
Maturities	$	500	$	600	$	—	$	1,350	$	—	$	5,300	$	7,750

Interest Expense

Interest expense, net of capitalized interest, was $58 million and $111 million for the three and six months ended June 30, 2020, respectively, and $55 million and $111 million for the three and six months ended June 30, 2019, respectively. Capitalized interest expense was $4 million and $8 million for the three and six months ended June 30, 2020, respectively, and $3 million and $6 million for the three and six months ended June 30, 2019, respectively.

B. Derivative Financial Instruments

Foreign Exchange Risk

A significant portion of our revenue, earnings and net investment in foreign affiliates is exposed to changes in foreign exchange rates. We seek to manage our foreign exchange risk, in part, through operational means, including managing same-currency revenue in relation to same-currency costs and same-currency assets in relation to same-currency liabilities. Depending on market conditions, foreign exchange risk is also managed through the use of various derivative financial instruments. These derivative financial instruments serve to manage the exposure of our net investment in certain foreign operations to changes in foreign exchange rates and protect net income against the impact of translation into U.S. dollars of certain foreign exchange-denominated transactions.

All derivative financial instruments used to manage foreign currency risk are measured at fair value and are reported as assets or liabilities on the condensed consolidated balance sheet. The derivative financial instruments primarily offset exposures in the Australian dollar, British pound, Canadian dollar, Chinese yuan, euro, and Japanese yen. Changes in fair value are reported in earnings or in Accumulated other comprehensive income/(loss), depending on the nature and purpose of the financial instrument, as follows:

•For foreign exchange contracts not designated as hedging instruments, we recognize the gains and losses on forward-exchange contracts that are used to offset the same foreign currency assets or liabilities immediately into earnings along with the earnings impact of the items they generally offset. These contracts essentially take the opposite currency position of that reflected in the month-end balance sheet to counterbalance the effect of any currency movement. The vast majority of the foreign exchange derivative financial instruments mature within 60 days and all mature within three years.

•For cross-currency interest rate swaps, which are designated as a hedge against our net investment in foreign operations, changes in the fair value are recorded as a component of cumulative translation adjustment within Accumulated other comprehensive income/(loss) and reclassified into earnings when the foreign investment is sold or substantially liquidated. Gains and losses excluded from the assessment of hedge effectiveness are recognized in earnings (Interest expense—net of capitalized interest). The cash flows from these contracts are reflected within the investing section of our Condensed Consolidated Statement of Cash Flows. The cross-currency interest rate swap contracts have varying maturities of up to five years.

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Interest Rate Risk

The company may use interest rate swap contracts on certain investing and borrowing transactions to manage its net exposure to interest rates and to reduce its overall cost of borrowing.

•During the second quarter of 2020, we entered into treasury lock trades with an aggregate notional value of $600 million. We designated these treasury locks as cash flow hedges against interest rate exposure related to the issuance of fixed-rate debt in the second quarter of 2020. Of the aggregate notional value of $600 million, four treasury locks with a total notional amount of $425 million, were designated as hedges against the ten-year fixed rate debt maturing in 2030, and two treasury locks with a total notional amount of $175 million were designated as hedges against the thirty-year note maturing in 2050. Upon issuance of our 2020 senior notes, we terminated the treasury locks and paid $6 million in cash to the counterparties for settlement. The settlement amount, which represents the fair value of the contracts at the time of termination, was recorded in Accumulated other comprehensive loss, and will be amortized into income over the life of the 2020 senior notes.

•In anticipation of issuing fixed-rate debt, we may use forward-starting interest rate swaps that are designated as cash flow hedges to hedge against changes in interest rates that could impact expected future issuances of debt. Unrealized gains or losses on the forward-starting interest rate swaps are reported in Accumulated other comprehensive loss and are recognized in earnings over the life of the future fixed-rate notes. When the company discontinues hedge accounting because it is no longer probable that an anticipated transaction will occur within the originally expected period of execution, or within an additional two-month period thereafter, changes to fair value accumulated in other comprehensive income are recognized immediately in earnings. For the six months ended June 30, 2020, we entered into forward-starting interest rate swaps, having an effective date and mandatory termination date in March 2023, to hedge against interest rate exposure related principally to the anticipated future issuance of fixed-rate debt to be used primarily to refinance our 3.250% 2013 senior notes due 2023.

•We may use fixed-to-floating interest rate swaps that are designated as fair value hedges to hedge against changes in the fair value of certain fixed-rate debt attributable to changes in the benchmark LIBOR rate. These derivative instruments effectively convert a portion of the company’s long-term debt from fixed rate to floating rate debt based on three-month LIBOR plus a spread. Gains or losses on the fixed-to-floating interest rate swaps due to changes in LIBOR are recorded in Interest expense, net of capitalized interest. Changes in the fair value of the fixed-to-floating interest rate swaps are offset by changes in the fair value of the underlying fixed rate debt. As of June 30, 2020, we had an outstanding fixed-to-floating interest rate swap that corresponds to a portion of the 3.900% 2018 senior notes due 2028. The amounts recorded during the three and six months ended June 30, 2020 for changes in the fair value of this hedge are not material to our consolidated financial statements.

Outstanding Positions

The aggregate notional amounts of derivative instruments are as follows:

	Notional
	June 30,		December 31,
(MILLIONS)	2020		2019
Foreign currency forward-exchange contracts	$	1,550	$	1,364
Cross-currency interest rate swap contracts (in foreign currency):
euro	650		650
Swiss franc	25		25
Danish krone	600		600
Forward-starting interest rate swaps	$	450	$	250
Fixed-to-floating interest rate swap contracts	$	150	$	150

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Fair Value of Derivative Instruments

The classification and fair values of derivative instruments are as follows:

		Fair Value of Derivatives
		June 30,		December 31,
(MILLIONS OF DOLLARS)	Balance Sheet Location	2020		2019
Derivatives Not Designated as Hedging Instruments
Foreign currency forward-exchange contracts	Other current assets	$	18	$	7
Foreign currency forward-exchange contracts	Other current liabilities	(19)		(5)
Total derivatives not designated as hedging instruments		$	(1)	$	2
Derivatives Designated as Hedging Instruments:
Forward-starting interest rate swap contracts	Other noncurrent assets	$	—	$	5
Forward-starting interest rate swap contracts	Other noncurrent liabilities	(32)		(1)
Cross-currency interest rate swap contracts	Other current assets	9		4
Cross-currency interest rate swap contracts	Other noncurrent assets	24		20
Cross-currency interest rate swap contracts	Other current liabilities	(5)		(3)
Fixed-to-floating interest rate swap contracts	Other noncurrent assets	14		—
Fixed-to-floating interest rate swap contracts	Other noncurrent liabilities	—		(2)
Total derivatives designated as hedging instruments		10		23
Total derivatives		$	9	$	25

The company’s cross-currency interest rate swaps are subject to master netting arrangements to mitigate credit risk by permitting net settlement of transactions with the same counterparty. We may also enter into collateral security arrangements with certain of our counterparties to exchange cash collateral when the net fair value of certain derivative instruments fluctuates from contractually established thresholds. At June 30, 2020, there was $25 million of collateral received related to the long-term cross-currency interest rate swaps recorded in Other noncurrent assets.

We use a market approach in valuing financial instruments on a recurring basis. Our derivative financial instruments are measured at fair value on a recurring basis using Level 2 inputs in the calculation of fair value.

The amounts of net gains on derivative instruments not designated as hedging instruments, recorded in Other (income)/deductions—net, are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Foreign currency forward-exchange contracts	$	4	$	8	$	10	$	4

These amounts were substantially offset in Other (income)/deductions—net by the effect of changing exchange rates on the underlying foreign currency exposures.

The amounts of unrecognized net gains/(losses) on interest rate swap contracts, recorded, net of tax, in Accumulated other comprehensive income/(loss), are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Forward-starting interest rate swap contracts	$	—	$	—	$	(27)	$	—
Cross-currency interest rate swap contracts	$	(14)	$	(4)	$	3	$	14

Gains on cross-currency interest rate swap contracts, recognized within Interest expense, net of capitalized interest, are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Cross-currency interest rate swap contracts	$	4	$	4	$	10	$	8

The net amount of deferred losses related to derivative instruments designated as cash flow hedges that is expected to be reclassified from Accumulated other comprehensive income/(loss) into earnings over the next 12 months is $1 million.

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10. Inventories

The components of inventory are as follows:

	June 30,		December 31,
(MILLIONS OF DOLLARS)	2020		2019
Finished goods	$	790	$	701
Work-in-process	570		511
Raw materials and supplies	224		198
Inventories	$	1,584	$	1,410

11. Goodwill and Other Intangible Assets

A. Goodwill

The components of, and changes in, the carrying amount of goodwill are as follows:

(MILLIONS OF DOLLARS)	U.S.		International		Total
Balance, December 31, 2019	$	1,367	$	1,225	$	2,592
Additions	52		—		52
Other(a)	—		(15)		(15)
Balance, June 30, 2020	$	1,419	$	1,210	$	2,629

^(a) Includes adjustments for foreign currency translation.

The gross goodwill balance was $3,165 million and $3,128 million as of June 30, 2020 and December 31, 2019, respectively. Accumulated goodwill impairment losses were $536 million as of June 30, 2020 and December 31, 2019.

B. Other Intangible Assets

The components of identifiable intangible assets are as follows:

	As of June 30, 2020						As of December 31, 2019
					Identifiable						Identifiable
	Gross				Intangible Assets		Gross				Intangible Assets
	Carrying		Accumulated		Less Accumulated		Carrying		Accumulated		Less Accumulated
(MILLIONS OF DOLLARS)	Amount		Amortization		Amortization		Amount		Amortization		Amortization
Finite-lived intangible assets:
Developed technology rights	$	1,941	$	(722)	$	1,219	$	1,938	$	(657)	$	1,281
Brands and tradenames	429		(233)		196		424		(223)		201
Other	453		(283)		170		441		(249)		192
Total finite-lived intangible assets	2,823		(1,238)		1,585		2,803		(1,129)		1,674
Indefinite-lived intangible assets:
Brands and tradenames	104		—		104		104		—		104
In-process research and development	87		—		87		105		—		105
Product rights	7		—		7		7		—		7
Total indefinite-lived intangible assets	198		—		198		216		—		216
Identifiable intangible assets	$	3,021	$	(1,238)	$	1,783	$	3,019	$	(1,129)	$	1,890

C. Amortization

Amortization expense related to finite-lived acquired intangible assets that contribute to our ability to sell, manufacture, research, market and distribute products, compounds and intellectual property is included in Amortization of intangible assets as it benefits multiple business functions. Amortization expense related to finite-lived acquired intangible assets that are associated with a single function is included in Cost of sales, Selling, general and administrative expenses or Research and development expenses, as appropriate. Total amortization expense for finite-lived intangible assets was $61 million and $122 million for the three and six months ended June 30, 2020, respectively and $58 million and $116 million for the three and six months ended June 30, 2019, respectively.

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12. Share-based Payments

The Zoetis 2013 Equity and Incentive Plan (the Equity Plan) provides long-term incentives to our employees and non-employee directors. The principal types of share-based awards available under the Equity Plan may include, but are not limited to, stock options, restricted stock and restricted stock units (RSUs), deferred stock units (DSUs), performance-vesting restricted stock units (PSUs) and other equity-based or cash-based awards.

The components of share-based compensation expense are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Stock options / stock appreciation rights	$	2	$	2	$	5	$	5
RSUs / DSUs(a)(b)	9		12		17		24
PSUs	5		3		10		6
Share-based compensation expense—total(c)	$	16	$	17	$	32	$	35

^(a) For the three and six months ended June 30, 2019, includes share-based compensation expense of $4 million and $9 million, respectively related to the acquisition of Abaxis, for the post-merger service period.

^(b)  Includes additional share-based compensation expense as a result of accelerated vesting of outstanding RSUs of terminated employees in connection with the acquisition of Abaxis, for the three and six months ended June 30, 2019 of approximately $2 million and $4 million, respectively, which is included in Restructuring charges and certain acquisition-related costs.

^(c)  Amounts capitalized to inventory were insignificant for the three and six months ended June 30, 2020 and $1 million for the three and six months ended June 30, 2019.

During the six months ended June 30, 2020, the company granted 292,727 stock options with a weighted-average exercise price of $143.23 per stock option and a weighted-average fair value of $33.83 per stock option. The fair-value based method for valuing each Zoetis stock option grant on the grant date uses the Black-Scholes-Merton option-pricing model, which incorporates a number of valuation assumptions. The weighted-average fair value was estimated based on the following assumptions: risk-free interest rate of 1.46%; expected dividend yield of 0.55%; expected stock price volatility of 24.22%; and expected term of 5.5 years. In general, stock options vest after three years of continuous service and the values determined through this fair-value based method generally are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.

During the six months ended June 30, 2020, the company granted 231,245 RSUs, with a weighted-average grant date fair value of $143.69 per RSU. RSUs are accounted for using a fair-value-based method that utilizes the closing price of Zoetis common stock on the date of grant. In general, RSUs vest after three years of continuous service from the grant date and the values generally are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.

During the six months ended June 30, 2020, the company granted 85,279 PSUs with a weighted-average grant date fair value of $217.49 per PSU. PSUs are accounted for using a Monte Carlo simulation model. The units underlying the PSUs will be earned and vested over a three-year performance period, based upon the total shareholder return of the company in comparison to the total shareholder return of the companies comprising the S&P 500 stock market index at the start of the performance period, excluding companies that during the performance period are acquired or no longer publicly traded (Relative TSR). The weighted-average fair value was estimated based on volatility assumptions of Zoetis common stock and an average of the S&P 500 companies, which were 20.2% and 24.8%, respectively. Depending on the company’s Relative TSR performance at the end of the performance period, the recipient may earn from 0% to 200% of the target number of units. Vested units are settled in shares of the company’s common stock. PSU values are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.

13. Stockholders' Equity

Zoetis is authorized to issue 6 billion shares of common stock and 1 billion shares of preferred stock.

In December 2018, the company's Board of Directors authorized a $2.0 billion share repurchase program. As of June 30, 2020, there was approximately $1.4 billion remaining under this authorization. Purchases of Zoetis shares may be made at the discretion of management, depending on market conditions and business needs. The company temporarily suspended share repurchases beginning in the second quarter of 2020.

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Accumulated other comprehensive loss

Changes, net of tax, in accumulated other comprehensive loss, were as follows:

			Currency Translation Adjustments
					Other Currency				Accumulated Other
	Cash Flow		Net Investment		Translation				Comprehensive
(MILLIONS OF DOLLARS)	Hedges		Hedges		Adjustments		Benefit Plans		Loss
Balance, December 31, 2018	$	(4)	$	10	$	(621)	$	(14)	$	(629)
Other comprehensive income/(loss), net of tax	1		4		(45)		—		(40)
Balance, June 30, 2019	$	(3)	$	14	$	(666)	$	(14)	$	(669)
Balance, December 31, 2019	$	—	$	21	$	(724)	$	(23)	$	(726)
Other comprehensive (loss)/income, net of tax	(32)		3		(101)		—		(130)
Balance, June 30, 2020	$	(32)	$	24	$	(825)	$	(23)	$	(856)

14. Earnings per Share

The following table presents the calculation of basic and diluted earnings per share:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS AND SHARES, EXCEPT PER SHARE DATA)	2020		2019		2020		2019
Numerator
Net income before allocation to noncontrolling interest	$	376	$	371	$	799	$	683
Less: Net loss attributable to noncontrolling interests	(1)		—		(1)		—
Net income attributable to Zoetis Inc.	$	377	$	371	$	800	$	683
Denominator
Weighted-average common shares outstanding	475.3		478.8		475.4		479.2
Common stock equivalents: stock options, RSUs, PSUs and DSUs	2.8		3.5		3.2		3.5
Weighted-average common and potential dilutive shares outstanding	478.1		482.3		478.6		482.7
Earnings per share attributable to Zoetis Inc. stockholders—basic	$	0.79	$	0.77	$	1.68	$	1.43
Earnings per share attributable to Zoetis Inc. stockholders—diluted	$	0.79	$	0.77	$	1.67	$	1.41

The number of stock options outstanding under the company's Equity Plan that were excluded from the computation of diluted earnings per share, as the effect would have been antidilutive, were de minimis for the three and six months ended June 30, 2020 and June 30, 2019.

15. Commitments and Contingencies

We and certain of our subsidiaries are subject to numerous contingencies arising in the ordinary course of business. For a discussion of our tax contingencies, see Note 8. Income Taxes.

A. Legal Proceedings

Our non-tax contingencies include, among others, the following:

• Product liability and other product-related litigation, which can include injury, consumer, off-label promotion, antitrust and breach of contract claims.

• Commercial and other matters, which can include product-pricing claims and environmental claims and proceedings.

• Patent litigation, which typically involves challenges to the coverage and/or validity of our patents or those of third parties on various products or processes.

• Government investigations, which can involve regulation by national, state and local government agencies in the U.S. and in other countries.

Certain of these contingencies could result in losses, including damages, fines and/or civil penalties, and/or criminal charges, which could be substantial.

We believe that we have strong defenses in these types of matters, but litigation is inherently unpredictable and excessive verdicts do occur. We do not believe that any of these matters will have a material adverse effect on our financial position. However, we could incur judgments, enter into settlements or revise our expectations regarding the outcome of certain matters, and such developments could have a material adverse effect on our results of operations or cash flows in the period in which the amounts are paid.

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We have accrued for losses that are both probable and reasonably estimable. Substantially all of these contingencies are subject to significant uncertainties and, therefore, determining the likelihood of a loss and/or the measurement of any loss can be complex. Consequently, we are unable to estimate the range of reasonably possible loss in excess of amounts accrued. Our assessments are based on estimates and assumptions that have been deemed reasonable by management, but the assessment process relies on estimates and assumptions that may prove to be incomplete or inaccurate, and unanticipated events and circumstances may occur that might cause us to change those estimates and assumptions.

Amounts recorded for legal and environmental contingencies can result from a complex series of judgments about future events and uncertainties and can rely on estimates and assumptions.

The principal matters to which we are a party are discussed below. In determining whether a pending matter is significant for financial reporting and disclosure purposes, we consider both quantitative and qualitative factors in order to assess materiality, such as, among other things, the amount of damages and the nature of any other relief sought in the proceeding, if such damages and other relief are specified; our view of the merits of the claims and of the strength of our defenses; whether the action purports to be a class action and our view of the likelihood that a class will be certified by the court; the jurisdiction in which the proceeding is pending; any experience that we or, to our knowledge, other companies have had in similar proceedings; whether disclosure of the action would be important to a reader of our financial statements, including whether disclosure might change a reader’s judgment about our financial statements in light of all of the information about the company that is available to the reader; the potential impact of the proceeding on our reputation; and the extent of public interest in the matter. In addition, with respect to patent matters, we consider, among other things, the financial significance of the product protected by the patent.

Ulianopolis, Brazil

In February 2012, the Municipality of Ulianopolis (State of Para, Brazil) filed a complaint against Fort Dodge Saúde Animal Ltda. (FDSAL), a Zoetis entity, and five other large companies alleging that waste sent to a local waste incineration facility for destruction, but that was not ultimately destroyed as the facility lost its operating permit, caused environmental impacts requiring cleanup.

The Municipality is seeking recovery of cleanup costs purportedly related to FDSAL's share of all waste accumulated at the incineration facility awaiting destruction, and compensatory damages to be allocated among the six defendants. We believe we have strong arguments against the claim, including defense strategies against any claim of joint and several liability.

At the request of the Municipal prosecutor, in April 2012, the lawsuit was suspended for one year. Since that time, the prosecutor has initiated investigations into the Municipality's actions in the matter as well as the efforts undertaken by the six defendants to remove and dispose of their individual waste from the incineration facility. On October 3, 2014, the Municipal prosecutor announced that the investigation remained ongoing and outlined the terms of a proposed Term of Reference (a document that establishes the minimum elements to be addressed in the preparation of an Environmental Impact Assessment), under which the companies would be liable to withdraw the waste and remediate the area.

On March 5, 2015, we presented our response to the prosecutor’s proposed Term of Reference, arguing that the proposed terms were overly general in nature and expressing our interest in discussing alternatives to address the matter. The prosecutor agreed to consider our request to engage a technical consultant to conduct an environmental diagnostic of the contaminated area. On May 29, 2015, we, in conjunction with the other defendant companies, submitted a draft cooperation agreement to the prosecutor, which outlined the proposed terms and conditions for the engagement of a technical consultant to conduct the environmental diagnostic. On August 19, 2016, the parties and the prosecutor agreed to engage the services of a third-party consultant to conduct a limited environmental assessment of the site. The site assessment was conducted during June 2017, and a written report summarizing the results of the assessment was provided to the parties and the prosecutor in November 2017. The report noted that waste is still present on the site and that further (Phase II) environmental assessments are needed before a plan to manage that remaining waste can be prepared. On April 1, 2019, the defendants met with the Prosecutor to discuss the conclusions set forth in the written report. Following that discussion, on April 10, 2019, the Prosecutor issued a procedural order requesting that the defendants prepare and submit a technical proposal outlining the steps needed to conduct the additional Phase II environmental assessments. The defendants presented the technical proposal to the Prosecutor on October 21, 2019. On March 3, 2020, the Prosecutor notified the defendants that he submitted the proposal to the Ministry of the Environment for its review and consideration. The technical proposal remains pending.

Lascadoil Contamination in Animal Feed

An investigation by the U.S. Food and Drug Administration (FDA) and the Michigan Department of Agriculture into the alleged contamination of the feed supply of certain turkey and hog feed mills in Michigan led to the recall of certain batches of soy oil (intended for use as an animal feed additive) that had originated with Shur-Green Farms LLC, a producer of soy oil, and that had been contaminated with lascadoil, an industrial by-product of certain Zoetis manufacturing processes. The contaminated feed is believed to have caused the deaths of approximately 50,000 turkeys and the contamination (but not death) of at least 20,000 hogs in August 2014. The investigation posited that Shur-Green inadvertently contaminated soy oil with lascadoil which it purchased from Zoetis for use as a bio-fuel ingredient, and then sold the contaminated soy oil to fat recycling vendors, who in turn unknowingly sold to feed mills for use in animal feed.

During the course of its investigation, the FDA identified the process used to manufacture Zoetis’ Avatec^® (lasalocid sodium) and Bovatec^® (lasalocid sodium) products as the possible source of the lascadoil, since lascadoil contains small amounts of lasalocid, the active ingredient found in both products. Zoetis sold the industrial lascadoil byproduct to Shur-Green, through its broker, Heritage Interactive Services, LLC. Under the terms of the sale agreement, the lascadoil could only be incinerated or resold for use in biofuel and the agreement expressly prohibited the reselling of lascadoil for use as a component in food. The FDA inspected the Zoetis site where Avatec and Bovatec are manufactured, and found no evidence that Zoetis was involved in the contamination of the animal feed.

On March 10, 2015, plaintiffs Restaurant Recycling, LLC (Restaurant Recycling) and Superior Feed Ingredients, LLC (Superior), both of whom are in the fat recycling business, filed a complaint in the Seventeenth Circuit Court for the State of Michigan against Shur-Green Farms alleging negligence and breach of warranty claims arising from their purchase of soy oil allegedly contaminated with lascadoil. Plaintiffs resold the allegedly contaminated soy oil to turkey feed mills for use in feed ingredient. Plaintiffs also named Zoetis as a defendant in the complaint

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alleging that Zoetis failed to properly manufacture its products and breached an implied warranty that the soy oil was fit for use at turkey and hog mills. Zoetis was served with the complaint on June 3, 2015, and we filed our answer, denying all allegations, on July 15, 2015. On August 10, 2015, several of the turkey feed mills filed a joint complaint against Restaurant Recycling, Superior, Shur-Green Farms and others, alleging claims for negligence, misrepresentation, and breach of warranty, arising out of their alleged purchase and use of the contaminated soy oil. The complaint raises only one count against Zoetis for negligence. We filed an answer to the complaint on November 2, 2015, denying the allegation. On May 16, 2016, two additional turkey producers filed a complaint in the Seventeenth Circuit Court for the State of Michigan against the company, Restaurant Recycling, Superior, Shur-Green Farms and others, alleging claims for negligence and breach of warranties. We filed an answer to the complaint on June 20, 2016, denying the allegations. The Court has consolidated all three cases in Michigan for purposes of discovery and disposition. On July 28, 2017, we filed a motion for summary disposition on the grounds that no genuine issues of material fact exist and that Zoetis is entitled to judgment as a matter of law. On October 19, 2017, the Court granted our motion and dismissed all claims against Zoetis. On October 31, 2017, the plaintiffs filed motions for reconsideration of the Court's decision granting summary disposition. The Court, denied all such motions on December 6, 2017, for the same reasons cited in the Court’s original decision. On December 27, 2017, the plaintiffs filed a request with the Michigan Court of Appeals seeking an interlocutory (or interim) appeal of the lower Court’s decision, which we opposed on January 17, 2018. On July 5, 2018, the Court of Appeals denied the plaintiffs’ request for an interlocutory appeal. The case was remanded back to the lower Court, where it was scheduled to proceed to trial by jury. We have been advised that the remaining parties have reached an agreement to settle the dispute, and on June 24, 2020, the remaining parties jointly stipulated to the dismissal of all remaining claims. On July 13, 2020, Plaintiffs filed a claim of appeal with Michigan State Circuit Court seeking reversal of the lower Court’s decision granting Zoetis’ motion for summary disposition. We intend to oppose the appeal.

Other Matters

On February 14, 2019, the General Court of the European Union (General Court) annulled the January 11, 2016 decision of the European Commission (EC) that selective tax advantages granted by Belgium under its "excess profit" tax scheme constitute illegal state aid. On May 8, 2019, the EC filed an appeal to the decision of the General Court. On September 16, 2019, the EC opened separate in-depth investigations to assess whether Belgium excess profit rulings granted to 39 multinational companies, including Zoetis, constituted state aid for those companies. Due to the uncertainty with respect to the outcome of the appeal to be filed by the EC, the company has not reflected any potential benefits associated with the decision of the General Court in its consolidated financial statements as of June 30, 2020. We will continue to monitor the developments of the appeal and its ultimate resolution.

The EC published a decision on alleged competition law infringements by several human health pharmaceutical companies on June 19, 2013. One of the involved legal entities is Alpharma LLC (previously having the name Zoetis Products LLC). Alpharma LLC's involvement is solely related to its human health activities prior to Pfizer's acquisition of King/Alpharma. Zoetis paid a fine in the amount of 11 million euros (approximately $14 million) and was reimbursed in full by Pfizer in accordance with the Global Separation Agreement between Pfizer and Zoetis, which provides that Pfizer is obligated to indemnify Zoetis for any liabilities arising out of claims not related to its animal health assets. We filed an appeal of the decision on September 6, 2013, to the General Court of the European Union. On September 8, 2016, the General Court upheld the decision of the European Commission. On November 25, 2016, we filed an appeal to the Court of Justice of the European Union. On January 24, 2019, the Court heard oral argument on the merits of the appeal. On June 4, 2020, the Advocate General issued his non-binding opinion, which largely confirmed the decision of the General Court. We now await the Court’s decision.

B. Guarantees and Indemnifications

In the ordinary course of business and in connection with the sale of assets and businesses, we indemnify our counterparties against certain liabilities that may arise in connection with the transaction or related to activities prior to the transaction. These indemnifications typically pertain to environmental, tax, employee and/or product-related matters and patent-infringement claims. If the indemnified party were to make a successful claim pursuant to the terms of the indemnification, we would be required to reimburse the loss. These indemnifications are generally subject to threshold amounts, specified claim periods and other restrictions and limitations. Historically, we have not paid significant amounts under these provisions and, as of June 30, 2020, recorded amounts for the estimated fair value of these indemnifications were not significant.

16. Segment Information

Operating Segments

We manage our operations through two geographic operating segments: the U.S. and International. Each operating segment has responsibility for its commercial activities. Within each of these operating segments, we offer a diversified product portfolio, including vaccines, parasiticides, anti-infectives, medicated feed additives, animal health diagnostics and other pharmaceuticals, for both livestock and companion animal customers. Our chief operating decision maker uses the revenue and earnings of the two operating segments, among other factors, for performance evaluation and resource allocation.

In the first quarter of 2020, the company realigned certain management responsibilities. These changes did not impact the determination of our operating segments, however they resulted in the reallocation of certain costs between segments. These changes primarily include the following: (i) R&D costs related to our aquaculture business, which were previously reported in our international commercial segment, are now reported in Other business activities; (ii) certain other miscellaneous costs, which were previously reported in international commercial segment results, are now reported in Corporate; and (iii) certain diagnostic and other miscellaneous costs, which were previously reported in our U.S. results, are now reported in Corporate.

Other Costs and Business Activities

Certain costs are not allocated to our operating segment results, such as costs associated with the following:

• Other business activities, includes our Client Supply Services (CSS) contract manufacturing results, our human health business, and expenses associated with our dedicated veterinary medicine research and development organization, research alliances, U.S.

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regulatory affairs and other operations focused on the development of our products. Other R&D-related costs associated with non-U.S. market and regulatory activities are generally included in the international commercial segment.

• Corporate, includes platform functions such as information technology, facilities, legal, finance, human resources, business development, certain diagnostic costs and communications, among others. These costs also include compensation costs and other miscellaneous operating expenses not charged to our operating segments, as well as interest income and expense.

•Certain transactions and events such as (i) Purchase accounting adjustments, where we incur expenses associated with the amortization of fair value adjustments to inventory, intangible assets and property, plant and equipment; (ii) Acquisition-related activities, where we incur costs associated with acquiring and integrating newly acquired businesses, such as transaction costs and integration costs; and (iii) Certain significant items, which comprise substantive, unusual items that, either as a result of their nature or size, would not be expected to occur as part of our normal business on a regular basis, such as restructuring charges and implementation costs associated with our cost-reduction/productivity initiatives that are not associated with an acquisition, certain asset impairment charges, certain legal and commercial settlements and the impact of divestiture-related gains and losses.

•Other unallocated includes (i) certain overhead expenses associated with our global manufacturing operations not charged to our operating segments; (ii) certain costs associated with information technology and finance that specifically support our global manufacturing operations; (iii) certain supply chain and global logistics costs; and (iv) procurement costs.

Segment Assets

We manage our assets on a total company basis, not by operating segment. Therefore, our chief operating decision maker does not regularly review any asset information by operating segment and, accordingly, we do not report asset information by operating segment.

Selected Statement of Income Information

	Earnings						Depreciation and Amortization(a)
	Three Months Ended						Three Months Ended
	June 30,						June 30,
(MILLIONS OF DOLLARS)	2020			2019			2020		2019
U.S.
Revenue	$	823		$	780
Cost of sales	154			158
Gross profit	669			622
Gross margin	81.3		%	79.7		%
Operating expenses	136			127
Other (income)/deductions-net	3			—
U.S. Earnings	530			495			$	12	$	9
International
Revenue(b)	708			742
Cost of sales	228			218
Gross profit	480			524
Gross margin	67.8		%	70.6		%
Operating expenses	117			146
Other (income)/deductions-net	1			—
International Earnings	362			378			12		12
Total operating segments	892			873			24		21
Other business activities	(90)			(79)			7		6
Reconciling Items:
Corporate	(179)			(178)			26		16
Purchase accounting adjustments	(53)			(58)			53		55
Acquisition-related costs	(7)			(22)			—		—
Certain significant items(c)	(6)			(3)			—		—
Other unallocated	(75)			(78)			1		—
Total Earnings(d)	$	482		$	455		$	111	$	98

^(a) Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

^(b) Revenue denominated in euros was $161 million and $184 million for the three months ended June 30, 2020 and June 30, 2019, respectively.

^(c) For the three months ended June 30, 2020, primarily represents CEO transition-related costs of $5 million. For the three months ended June 30, 2019, primarily represents product transfer costs and consulting fees related to our supply network strategy. 

^(d) Defined as income before provision for taxes on income.      

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	Earnings						Depreciation and Amortization(a)
	Six Months Ended						Six Months Ended
	June 30,						June 30,
(MILLIONS OF DOLLARS)	2020			2019			2020		2019
U.S.
Revenue	$	1,609		$	1,498
Cost of sales	321			305
Gross profit	1,288			1,193
Gross margin	80.1		%	79.6		%
Operating expenses	261			237
Other (income)/deductions-net	4			—
U.S. Earnings	1,023			956			$	25	$	19
International
Revenue(b)	1,436			1,460
Cost of sales	452			428
Gross profit	984			1,032
Gross margin	68.5		%	70.7		%
Operating expenses	242			278
Other (income)/deductions-net	1			—
International Earnings	741			754			26		25
Total operating segments	1,764			1,710			51		44
Other business activities	(177)			(159)			13		11
Reconciling Items:
Corporate	(352)			(340)			48		30
Purchase accounting adjustments	(107)			(124)			107		110
Acquisition-related costs	(14)			(27)			—		—
Certain significant items(c)	5			(73)			—		—
Other unallocated	(140)			(151)			2		1
Total Earnings(d)	$	979		$	836		$	221	$	196

^(a) Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

^(b) Revenue denominated in euros was $331 million and $365 million for the six months ended June 30, 2020 and June 30, 2019, respectively.

^(c) For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites of $17 million, partially offset by CEO transition-related costs of $9 million. For the six months ended June 30, 2019, primarily represents a change in estimate related to inventory costing of $68 million, and product transfer costs and consulting fees of $5 million related to our supply network strategy. 

^(d) Defined as income before provision for taxes on income.

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Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Zoetis Inc.:

Results of Review of Interim Financial Information

We have reviewed the condensed consolidated balance sheet of Zoetis, Inc. and subsidiaries (the Company) as of June 30, 2020, the related condensed consolidated statements of income, comprehensive income, and equity for the three-month and six-month periods ended June 30, 2020 and 2019, the related condensed consolidated statements of cash flows for the six-month periods ended June 30, 2020 and 2019, and the related notes (collectively, the consolidated interim financial information). Based on our reviews, we are not aware of any material modifications that should be made to the consolidated interim financial information for it to be in conformity with U.S. generally accepted accounting principles.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2019, and the related consolidated statements of income, comprehensive income, equity, and cash flows for the year then ended (not presented herein); and in our report dated February 13, 2020, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of December 31, 2019, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

This consolidated interim financial information is the responsibility of the Company’s management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our reviews in accordance with the standards of the PCAOB. A review of consolidated interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

/s/ KPMG LLP

Short Hills, New Jersey

August 6, 2020

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Overview of our business

We are a global leader in the discovery, development, manufacture and commercialization of animal health medicines, vaccines, and diagnostic products with a focus on both livestock and companion animals. For more than 65 years, we have been committed to enhancing the health of animals and bringing solutions to our customers who raise and care for them.

We manage our operations through two geographic operating segments: the United States (U.S.) and International. Within each of these operating segments, we offer a diversified product portfolio for both livestock and companion animal customers in order to capitalize on local and regional trends and customer needs. See Notes to Condensed Consolidated Financial Statements — Note 16. Segment Information.

We directly market our products to veterinarians and livestock producers located in approximately 45 countries across North America, Europe, Africa, Asia, Australia and South America, and are a market leader in nearly all of the major regions in which we operate. Through our efforts to establish an early and direct presence in many emerging markets, such as Brazil, China and Mexico, we believe we are one of the largest animal health medicines and vaccines business as measured by revenue across emerging markets as a whole. In markets where we do not have a direct commercial presence, we generally contract with distributors that provide logistics and sales and marketing support for our products.

We believe our investments in one of the industry’s largest sales organizations, including our extensive network of technical and veterinary operations specialists, our high-quality manufacturing and reliability of supply, and our long track record of developing products that meet customer needs, has led to enduring and valued relationships with our customers. Our research and development (R&D) efforts enable us to deliver innovative products to address unmet needs and evolve our product lines so they remain relevant for our customers.

Our products include over 300 products and product lines that we sell in over 100 countries for the prediction, prevention, detection and treatment of diseases and conditions that affect various livestock and companion animal species. The diversity of our product portfolio and our global operations provides stability to our overall business. For instance, in livestock, impacts on our revenue that may result from disease outbreaks or weather conditions in a particular market or region are often offset by increased sales in other regions from exports and species as consumers shift to other proteins.

In the first quarter of 2020, the company realigned certain management responsibilities. These changes did not impact the determination of our operating segments, however they resulted in the reallocation of certain costs between segments. These changes primarily include the following: (i) R&D costs related to our aquaculture business, which were previously reported in our international commercial segment, are now reported in Other business activities; (ii) certain other miscellaneous costs, which were previously reported in international commercial segment results, are now reported in Corporate; and (iii) certain diagnostics and other miscellaneous costs, which were previously reported in our U.S. results, are now reported in Corporate.

Certain reclassifications of prior year information have been made to conform to the current year's presentation.

A summary of our 2020 performance compared with the comparable 2019 period follows:

					% Change
	Three Months Ended					Related to
	June 30,					Foreign
(MILLIONS OF DOLLARS)	2020		2019		Total	Exchange	Operational(a)
Revenue	$	1,548	$	1,547	—	(4)	4
Net income attributable to Zoetis	377		371		2	(9)	11
Adjusted net income(a)	427		436		(2)	(6)	4

					% Change
	Six Months Ended					Related to
	June 30,					Foreign
(MILLIONS OF DOLLARS)	2020		2019		Total	Exchange	Operational(a)
Revenue	$	3,082	$	3,002	3	(2)	5
Net income attributable to Zoetis	800		683		17	(7)	24
Adjusted net income(a)	882		860		3	(4)	7

^(a) Operational growth and adjusted net income are non-GAAP financial measures. See the Non-GAAP financial measures section of this Management's Discussion and Analysis (MD&A) for more information.

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Our operating environment

For a description of our operating environment, including factors which could materially affect our business, financial condition, or future results, see "Our Operating Environment" in the MD&A of our 2019 Annual Report on Form 10-K. Set forth below are updates to certain of the factors disclosed in our 2019 Form 10-K.

Uncertainty Relating to COVID-19

We continue to closely monitor the impact of the coronavirus (COVID-19) pandemic and the resulting global recession on all aspects of our business and geographies, including how it has and will continue to impact our customers, workforce, suppliers and vendors. We are currently designated an essential business globally and have continued physical operations with respect to manufacturing and supply chain. The COVID-19 pandemic had a significant impact on our results of operations during the second quarter of 2020 due to decreased demand attributable to the impact of COVID-19 on our customers and we anticipate that trend to continue for the remainder of 2020.

Due to numerous uncertainties regarding the continuing COVID-19 pandemic, we are unable to fully predict the impact that it will ultimately have on our financial position and operating results. These uncertainties include the severity of the virus, the duration of the outbreak and likelihood of recurrences, the short-term effects and ultimate effectiveness of measures in the U.S. and other countries to contain and treat the virus, governmental, business or other actions in response to the pandemic (which could include actions that result in limitations on, or disruptions to, our manufacturing, transportation and other operations, or mandates to provide products or services), impacts on our supply chain, the effect on customer demand, or changes to our operations. We cannot predict the impact that the COVID-19 pandemic will have on our customers, vendors and suppliers; however, any material effect on these parties could adversely impact us. In particular, our livestock customers have been, and may continue to be, negatively impacted by facility closures, reduced packing plant capacity, quarantines, travel bans and labor shortages, among other impacts. In addition, our companion animal customers have been, and may continue to be, negatively impacted by lack of demand for veterinary services. The impact of COVID-19 on our customers has reduced and could continue to reduce the demand for our products, which could continue to adversely impact our revenue. The health of our workforce, and our ability to meet staffing needs in our manufacturing operations and other critical functions also cannot be predicted and is vital to our operations. Further, the impacts of a prolonged global recession and the continued disruptions to, and volatility in, the credit and financial markets, as well as other unanticipated consequences, remain unknown. In addition, in order to preserve liquidity, we issued debt securities in May 2020 and we may in the future incur additional indebtedness, whether through the issuance of debt securities, drawdowns under our credit facility or otherwise. An increase in our outstanding indebtedness will result in additional interest expense.

The situation surrounding COVID-19 remains fluid, and we will continue to actively monitor the situation and may take actions that alter our business operations that we determine are in the best interests of our workforce, customers, vendors, suppliers, and other stakeholders, or as required by federal, state, or local authorities. It is not clear what the potential effects any such alterations or modifications may ultimately have on our business, including the effects on our customers, workforce, and prospects, or on our financial results for the remainder of fiscal 2020.

For further information regarding the impact of COVID-19 on the Company, please see Item 1A, Risk Factors in this report.

Quarterly Variability of Financial Results

Our quarterly financial results are subject to variability related to a number of factors including but not limited to: the impact of the COVID-19 pandemic discussed above, weather patterns, herd management decisions, economic conditions, regulatory actions, competitive dynamics, disease outbreaks, product and geographic mix, timing of price increases and timing of investment decisions.

Disease Outbreaks

Sales of our livestock products could be adversely affected by the outbreak of disease carried by animals. Outbreaks of disease may reduce regional or global sales of particular animal-derived food products or result in reduced exports of such products, either due to heightened export restrictions or import prohibitions, which may reduce demand for our products. Also, the outbreak of any highly contagious disease near our main production sites could require us to immediately halt production of our products at such sites or force us to incur substantial expenses in procuring raw materials or products elsewhere. Alternatively, sales of products that treat specific disease outbreaks may increase.

Foreign Exchange Rates

Significant portions of our revenue and costs are exposed to changes in foreign exchange rates. Our products are sold in more than 100 countries and, as a result, our revenue is influenced by changes in foreign exchange rates. For the six months ended June 30, 2020, approximately 43% of our revenue was denominated in foreign currencies. We seek to manage our foreign exchange risk, in part, through operational means, including managing same-currency revenue in relation to same-currency costs and same-currency assets in relation to same-currency liabilities. As we operate in multiple foreign currencies, including the euro, Brazilian real, Chinese renminbi, Canadian dollar, Australian dollar, U.K. pound and other currencies, changes in those currencies relative to the U.S. dollar will impact our revenue, cost of goods and expenses, and consequently, net income. Exchange rate fluctuations may also have an impact beyond our reported financial results and directly impact operations. These fluctuations may affect the ability to buy and sell our goods and services between markets impacted by significant exchange rate variances. For the six months ended June 30, 2020, approximately 57% of our total revenue was in U.S. dollars. Our year-over-year total revenue growth was unfavorably impacted by approximately 2% from changes in foreign currency values relative to the U.S. dollar.

Non-GAAP financial measures

We report information in accordance with U.S. generally accepted accounting principles (GAAP). Management also measures performance using non-GAAP financial measures that may exclude certain amounts from the most directly comparable GAAP measure. Despite the importance of these measures to management in goal setting and performance measurement, non-GAAP financial measures have no

26 |

standardized meaning prescribed by U.S. GAAP and, therefore, have limits in their usefulness to investors and may not be comparable to the calculation of similar measures of other companies. We present certain identified non-GAAP measures solely to provide investors with useful information to more fully understand how management assesses performance.

Operational Growth

We believe that it is important to not only understand overall revenue and earnings growth, but also “operational growth.” Operational growth is a non-GAAP financial measure defined as revenue or earnings growth excluding the impact of foreign exchange. This measure provides information on the change in revenue and earnings as if foreign currency exchange rates had not changed between the current and prior periods to facilitate a period-to-period comparison. We believe this non-GAAP measure provides a useful comparison to previous periods for the company and investors, but should not be viewed as a substitute for U.S. GAAP reported growth.

Adjusted Net Income and Adjusted Earnings Per Share

Adjusted net income and the corresponding adjusted earnings per share (EPS) are non-GAAP financial measures of performance used by management. We believe these financial measures are useful supplemental information to investors when considered together with our U.S. GAAP financial measures. We report adjusted net income to portray the results of our major operations, and the discovery, development, manufacture and commercialization of our products, prior to considering certain income statement elements. We define adjusted net income and adjusted EPS as net income attributable to Zoetis and EPS before the impact of purchase accounting adjustments, acquisition-related costs and certain significant items.

We recognize that, as an internal measure of performance, the adjusted net income and adjusted EPS measures have limitations, and we do not restrict our performance management process solely to these metrics. A limitation of the adjusted net income and adjusted EPS measures is that they provide a view of our operations without including all events during a period, such as the effects of an acquisition or amortization of purchased intangibles, and do not provide a comparable view of our performance to other companies. The adjusted net income and adjusted EPS measures are not, and should not be viewed as, a substitute for U.S. GAAP reported net income and reported EPS. See the Adjusted Net Income section below for more information.

Analysis of the condensed consolidated statements of income

The following discussion and analysis of our statements of income should be read along with our condensed consolidated financial statements and the notes thereto included elsewhere in Part I— Item 1 of this Quarterly Report on Form 10-Q.

	Three Months Ended							Six Months Ended
	June 30,						%	June 30,						%
(MILLIONS OF DOLLARS)	2020			2019			Change	2020			2019			Change
Revenue	$	1,548		$	1,547		—	$	3,082		$	3,002		3
Costs and expenses:
Cost of sales	451			465			(3)	910			983			(7)
% of revenue	29.1		%	30.1		%		29.5		%	32.7		%
Selling, general and administrative expenses	393			406			(3)	782			775			1
% of revenue	25		%	26		%		25		%	26		%
Research and development expenses	111			111			—	218			213			2
% of revenue	7		%	7		%		7		%	7		%
Amortization of intangible assets	40			39			3	80			77			4
Restructuring charges and certain acquisition-related costs	8			22			(64)	17			27			(37)
Interest expense, net of capitalized interest	58			55			5	111			111			—
Other (income)/deductions—net	5			(6)			*	(15)			(20)			(25)
Income before provision for taxes on income	482			455			6	979			836			17
% of revenue	31		%	29		%		32		%	28		%
Provision for taxes on income	106			84			26	180			153			18
Effective tax rate	22.0		%	18.5		%		18.4		%	18.3		%
Net income before allocation to noncontrolling interests	376			371			1	799			683			17
Less: Net loss attributable to noncontrolling interests	(1)			—			*	(1)			—			*
Net income attributable to Zoetis	$	377		$	371		2	$	800		$	683		17
% of revenue	24		%	24		%		26		%	23		%

*Calculation not meaningful

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Revenue

Three months ended June 30, 2020 vs. three months ended June 30, 2019

Total revenue increased by $1 million, or 0%, in the three months ended June 30, 2020, compared with the three months ended June 30, 2019, an increase of $60 million, or 4%, on an operational basis. Operational revenue growth was comprised primarily of the following:

•volume growth from new products of approximately 3%;

•price growth of approximately 2%; and

•recent acquisitions which contributed approximately 1%,

partially offset by:

•decreased volume from in-line products of approximately 2%, driven by declines in other in-line products mainly in cattle and swine, partially offset by growth in our key dermatology products.

Foreign exchange decreased reported revenue growth by approximately 4%.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Total revenue increased by $80 million, or 3%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, an increase of $160 million, or 5%, on an operational basis. Operational revenue growth was comprised primarily of the following:

•volume growth from new products of approximately 3%;

•price growth of approximately 2%; and

•recent acquisitions which contributed approximately 1%,

partially offset by:

•decreased volume from in-line products of approximately 1%, driven by declines in other in-line products mainly in cattle, partially offset by growth in our key dermatology products.

Foreign exchange decreased reported revenue growth by approximately 2%.

Costs and Expenses

Cost of sales
	Three Months Ended							Six Months Ended
	June 30,						%	June 30,						%
(MILLIONS OF DOLLARS)	2020			2019			Change	2020			2019			Change
Cost of sales	$	451		$	465		(3)	$	910		$	983		(7)
% of revenue	29.1		%	30.1		%		29.5		%	32.7		%

Three months ended June 30, 2020 vs. three months ended June 30, 2019

Cost of sales as a percentage of revenue was 29.1% in the three months ended June 30, 2020 compared with 30.1% in the three months ended June 30, 2019. The decrease was primarily as a result of:

•price increases;

•favorable manufacturing costs; and

•favorable product mix,

partially offset by:

•unfavorable foreign exchange;

•the inclusion of recent acquisitions; and

•higher inventory obsolescence, scrap and other charges.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Cost of sales as a percentage of revenue was 29.5% in the six months ended June 30, 2020 compared with 32.7% in the six months ended June 30, 2019. The decrease was primarily as a result of:

•a change in estimate related to inventory costing in 2019;

•price increases; and

•favorable manufacturing costs,

partially offset by:

•unfavorable foreign exchange;

•the inclusion of recent acquisitions; and

•higher inventory obsolescence, scrap and other charges.

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Selling, general and administrative expenses
	Three Months Ended							Six Months Ended
	June 30,						%	June 30,						%
(MILLIONS OF DOLLARS)	2020			2019			Change	2020			2019			Change
Selling, general and administrative expenses	$	393		$	406		(3)	$	782		$	775		1
% of revenue	25		%	26		%		25		%	26		%

Three months ended June 30, 2020 vs. three months ended June 30, 2019

SG&A expenses decreased by $13 million, or 3%, in the three months ended June 30, 2020, compared with the three months ended June 30, 2019, primarily as a result of:

•lower travel and entertainment expenses as a result of decreases in travel and events related to the COVID-19 pandemic;

•reduction in certain compensation-related costs; and

•favorable foreign exchange,

partially offset by:

•investments to support revenue growth;

•expenses related to recent acquisitions; and

•an increase in depreciation.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

SG&A expenses increased by $7 million, or 1%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, primarily as a result of:

•investments to support revenue growth;

•expenses related to recent acquisitions; and

•an increase in depreciation,

partially offset by:

•lower travel and entertainment expenses as a result of decreases in travel and events related to the COVID-19 pandemic;

•reduction in certain compensation-related costs; and

•favorable foreign exchange.

Research and development expenses
	Three Months Ended							Six Months Ended
	June 30,						%	June 30,						%
(MILLIONS OF DOLLARS)	2020			2019			Change	2020			2019			Change
Research and development expenses	$	111		$	111		—	$	218		$	213		2
% of revenue	7		%	7		%		7		%	7		%

Three months ended June 30, 2020 vs. three months ended June 30, 2019

R&D expenses were flat in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, primarily as a result of:

•an increase in certain compensation-related expenses; and

•increased spending driven by project investments,

offset by:

•lower travel and entertainment expenses as a result of decreases in travel and events related to the COVID-19 pandemic; and

•favorable foreign exchange.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

R&D expenses increased by $5 million, or 2%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, primarily as a result of:

•increased spending driven by project investments; and

•an increase in certain compensation-related expenses,

partially offset by:

•lower travel and entertainment expenses as a result of decreases in travel and events related to the COVID-19 pandemic; and

•favorable foreign exchange.

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Amortization of intangible assets
	Three Months Ended					Six Months Ended
	June 30,				%	June 30,				%
(MILLIONS OF DOLLARS)	2020		2019		Change	2020		2019		Change
Amortization of intangible assets	$	40	$	39	3	$	80	$	77	4

Three months ended June 30, 2020 vs. three months ended June 30, 2019

Amortization of intangible assets was $40 million in the three months ended June 30, 2020 compared with $39 million in the three months ended June 30, 2019, primarily as a result of certain intangible assets acquired during 2019.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Amortization of intangible assets was $80 million in the six months ended June 30, 2020 compared with $77 million in the six months ended June 30, 2019, primarily as a result of certain intangible assets acquired during 2019.

Restructuring charges and certain acquisition-related costs
	Three Months Ended					Six Months Ended
	June 30,				%	June 30,				%
(MILLIONS OF DOLLARS)	2020		2019		Change	2020		2019		Change
Restructuring charges and certain acquisition-related costs	$	8	$	22	(64)	$	17	$	27	(37)

Our acquisition-related costs primarily relate to restructuring charges for employees, assets and activities that will not continue in the future, as well as integration costs. The majority of these net restructuring charges are related to termination costs, but we also exited a number of distributor and other contracts and performed certain facility rationalization efforts. Our integration costs are generally comprised of consulting costs related to the integration of systems and processes, as well as product transfer costs.

For additional information regarding restructuring charges and acquisition-related costs, see Notes to Condensed Consolidated Financial Statements— Note 6. Restructuring Charges and Other Costs Associated with Acquisitions, Cost-Reduction and Productivity Initiatives.

Three months ended June 30, 2020 vs. three months ended June 30, 2019

Restructuring charges and certain acquisition-related costs decreased by $14 million, or 64%, in the three months ended June 30, 2020 compared with the three months ended June 30, 2019. Restructuring charges and certain acquisition-related costs in the three months ended June 30, 2020 consisted of integration costs related to recent acquisitions and restructuring charges related to CEO transition-related costs. Restructuring charges and certain acquisition-related costs in the three months ended June 30, 2019 included integration costs and employee termination costs incurred as a result of the acquisition of Abaxis in the third quarter of 2018.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Restructuring charges and certain acquisition-related costs decreased by $10 million, or 37%, in the six months ended June 30, 2020 compared with the six months ended June 30, 2019. Restructuring charges and certain acquisition-related costs in the six months ended June 30, 2020 consisted of integration costs related to recent acquisitions and restructuring charges related to CEO transition-related costs. Restructuring charges and certain acquisition-related costs in the six months ended June 30, 2019 included integration costs and employee termination costs incurred as a result of the acquisition of Abaxis in the third quarter of 2018.

Interest expense, net of capitalized interest
	Three Months Ended					Six Months Ended
	June 30,				%	June 30,				%
(MILLIONS OF DOLLARS)	2020		2019		Change	2020		2019		Change
Interest expense, net of capitalized interest	$	58	$	55	5	$	111	$	111	—

Three months ended June 30, 2020 vs. three months ended June 30, 2019

Interest expense, net of capitalized interest, increased by $3 million, or 5% in the three months ended June 30, 2020, compared with the three months ended June 30, 2019, primarily as a result of the increase in long-term debt during the three months ended June 30, 2020, partially offset by gains on cross-currency interest rate swaps.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Interest expense, net of capitalized interest, was flat in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, primarily as a result of the increase in long-term debt during the six months ended June 30, 2020, offset by gains on cross-currency interest rate swaps.

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Other (income)/deductions—net
	Three Months Ended					Six Months Ended
	June 30,				%	June 30,				%
(MILLIONS OF DOLLARS)	2020		2019		Change	2020		2019		Change
Other (income)/deductions—net	$	5	$	(6)	*	$	(15)	$	(20)	(25)

*Calculation not meaningful

Three months ended June 30, 2020 vs. three months ended June 30, 2019

Other (income)/deductions—net was deductions of $5 million for the three months ended June 30, 2020 compared with income of $6 million in the three months ended June 30, 2019, primarily as a result of lower interest income due to lower interest rates as compared to the prior year period, an impairment of an equity investment and intangible asset impairment charges in the current period.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Other (income)/deductions—net was income of $15 million for the six months ended June 30, 2020 compared with income of $20 million in the six months ended June 30, 2019, primarily as a result of lower interest income due to lower interest rates as compared to the prior year period, higher foreign currency losses, an impairment of an equity investment and intangible asset impairment charges in the current period, partially offset by a net gain of $18 million in the six months ended June 30, 2020 primarily related to net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites.

Provision for taxes on income
	Three Months Ended							Six Months Ended
	June 30,						%	June 30,						%
(MILLIONS OF DOLLARS)	2020			2019			Change	2020			2019			Change
Provision for taxes on income	$	106		$	84		26	$	180		$	153		18
Effective tax rate	22.0		%	18.5		%		18.4		%	18.3		%

Three months ended June 30, 2020 vs. three months ended June 30, 2019

Our effective tax rate was 22.0% for the three months ended June 30, 2020, compared with 18.5% for the three months ended June 30, 2019. The higher effective tax rate for the three months ended June 30, 2020, was primarily attributable to:

•changes in the jurisdictional mix of earnings, which includes the impact of the location of earnings from operations and repatriation costs. The jurisdictional mix of earnings can vary as a result of repatriation decisions and operating fluctuations in the normal course of business and the impact of non-deductible items;

•an $8 million net discrete tax benefit recorded in the three months ended June 30, 2019, primarily related to the effective settlement of certain issues with non-U.S. tax authorities; and

•a $1 million and $2 million discrete tax benefit recorded in the three months ended June 30, 2020 and 2019, respectively, related to the excess tax benefits for share-based payments,

partially offset by:

•a $1 million discrete tax benefit recorded in the three months ended June 30, 2020 related to a remeasurement of deferred taxes resulting from the integration of acquired businesses; and

•a $1 million discrete tax benefit recorded in the three months ended June 30, 2020 related to a remeasurement of deferred taxes as a result of changes in non-U.S. statutory tax rates.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Our effective tax rate was 18.4% for the six months ended June 30, 2020, compared with 18.3% for the six months ended June 30, 2019. The higher effective tax rate for the six months ended June 30, 2020, was primarily attributable to:

•changes in the jurisdictional mix of earnings, which includes the impact of the location of earnings from operations and repatriation costs. The jurisdictional mix of earnings can vary as a result of repatriation decisions and operating fluctuations in the normal course of business and the impact of non-deductible items; and

•a $16 million net discrete tax benefit recorded in the six months ended June 30, 2019, primarily related to the effective settlement of certain issues with non-U.S. tax authorities and a prior period tax adjustment,

partially offset by:

•a $24 million and $15 million discrete tax benefit recorded in the six months ended June 30, 2020 and 2019, respectively, related to the excess tax benefits for share-based payments; and

•a $7 million discrete tax benefit recorded in the six months ended June 30, 2020 related to a remeasurement of deferred taxes resulting from the integration of acquired businesses.

31 |

Operating Segment Results

On a global basis, the mix of revenue between livestock and companion animal products was as follows:

					% Change
	Three Months Ended					Related to
	June 30,					Foreign
(MILLIONS OF DOLLARS)	2020		2019		Total	Exchange	Operational
U.S.
Companion animal	$	594	$	500	19	—	19
Livestock	229		280		(18)	—	(18)
	823		780		6	—	6
International
Companion animal	288		298		(3)	(5)	2
Livestock	420		444		(5)	(9)	4
	708		742		(5)	(8)	3
Total
Companion animal	882		798		11	(2)	13
Livestock	649		724		(10)	(5)	(5)
Contract manufacturing & human health	17		25		(32)	1	(33)
	$	1,548	$	1,547	—	(4)	4

					% Change
	Six Months Ended					Related to
	June 30,					Foreign
(MILLIONS OF DOLLARS)	2020		2019		Total	Exchange	Operational
U.S.
Companion animal	$	1,093	$	945	16	—	16
Livestock	516		553		(7)	—	(7)
	1,609		1,498		7	—	7
International
Companion animal	586		582		1	(4)	5
Livestock	850		878		(3)	(6)	3
	1,436		1,460		(2)	(6)	4
Total
Companion animal	1,679		1,527		10	(2)	12
Livestock	1,366		1,431		(5)	(4)	(1)
Contract manufacturing & human health	37		44		(16)	(1)	(15)
	$	3,082	$	3,002	3	(2)	5

32 |

Earnings by segment and the operational and foreign exchange changes versus the comparable prior year period were as follows:

							% Change
	Three Months Ended							Related to
	June 30,							Foreign
(MILLIONS OF DOLLARS)	2020			2019			Total	Exchange	Operational
U.S.:
Revenue	$	823		$	780		6	—	6
Cost of Sales	154			158			(3)	—	(3)
Gross Profit	669			622			8	—	8
Gross Margin	81.3		%	79.7		%
Operating Expenses	136			127			7	—	7
Other (income)/deductions-net	3			—			*	*	*
U.S. Earnings	530			495			7	—	7
International:
Revenue	708			742			(5)	(8)	3
Cost of Sales	228			218			5	(5)	10
Gross Profit	480			524			(8)	(9)	1
Gross Margin	67.8		%	70.6		%
Operating Expenses	117			146			(20)	(8)	(12)
Other (income)/deductions-net	1			—			*	*	*
International Earnings	362			378			(4)	(9)	5
Total operating segments	892			873			2	(4)	6
Other business activities	(90)			(79)			14
Reconciling Items:
Corporate	(179)			(178)			1
Purchase accounting adjustments	(53)			(58)			(9)
Acquisition-related costs	(7)			(22)			(68)
Certain significant items	(6)			(3)			*
Other unallocated	(75)			(78)			(4)
Total Earnings	$	482		$	455		6

*Calculation not meaningful.

33 |

							% Change
	Six Months Ended							Related to
	June 30,							Foreign
(MILLIONS OF DOLLARS)	2020			2019			Total	Exchange	Operational
U.S.:
Revenue	$	1,609		$	1,498		7	—	7
Cost of Sales	321			305			5	—	5
Gross Profit	1,288			1,193			8	—	8
Gross Margin	80.1		%	79.6		%
Operating Expenses	261			237			10	—	10
Other (income)/deductions-net	4			—			*	*	*
U.S. Earnings	1,023			956			7	—	7
International:
Revenue	1,436			1,460			(2)	(6)	4
Cost of Sales	452			428			6	(3)	9
Gross Profit	984			1,032			(5)	(7)	2
Gross Margin	68.5		%	70.7		%
Operating Expenses	242			278			(13)	(5)	(8)
Other (income)/deductions-net	1			—			*	*	*
International Earnings	741			754			(2)	(7)	5
Total operating segments	1,764			1,710			3	(3)	6
Other business activities	(177)			(159)			11
Reconciling Items:
Corporate	(352)			(340)			4
Purchase accounting adjustments	(107)			(124)			(14)
Acquisition-related costs	(14)			(27)			(48)
Certain significant items	5			(73)			*
Other unallocated	(140)			(151)			(7)
Total Earnings	$	979		$	836		17

* Calculation not meaningful.

Three months ended June 30, 2020 vs. three months ended June 30, 2019

U.S. operating segment

U.S. segment revenue increased by $43 million, or 6%, in the three months ended June 30, 2020, compared with the three months ended June 30, 2019, reflecting increases of approximately $94 million in companion animal products and decreases of approximately $51 million in livestock products.

•Companion animal revenue growth was driven primarily by increased sales in the Simparica® franchise, including revenues from Simparica Trio^® our new triple combination parasiticide for dogs, our key dermatology portfolio and sales from the recent acquisitions of Platinum Performance, as well as a number of regional diagnostic reference labs.

•Livestock revenue decreased due to disruptions in the food supply chain including reduced producer processing capacity and continued channel migration from dining out to preparing food at home that impacted producer profitability and resulted in a decline across each of the cattle, swine and poultry portfolios. The decline in the cattle portfolio was also the result of continued unfavorable market conditions in beef and dairy, while swine product sales were negatively impacted by increased competition.

U.S. segment earnings increased by $35 million, or 7%, in the three months ended June 30, 2020, compared with the three months ended June 30, 2019, primarily due to revenue growth and lower cost of sales, partially offset by higher operating expenses due to recent acquisitions.

International operating segment

International segment revenue decreased by $34 million, or 5%, in the three months ended June 30, 2020, compared with the three months ended June 30, 2019. Operational revenue increased by $24 million, or 3%, driven by growth of approximately $8 million in companion animal products and growth of approximately $16 million in livestock products.

•Companion animal operational revenue growth resulted primarily from increased sales in our key dermatology, as well as the Simparica franchise, including the launch of Simparica Trio in Canada and certain markets in the EU. Sales of companion animal products in China continued to grow rapidly driven by strong underlying market dynamics. Growth in companion animal products was

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partially offset by decreased demand attributable to the impact of COVID-19 and social distancing measures in certain markets including the EU and in Latin America that resulted in decreased veterinary clinic traffic.

•Livestock operational revenue growth was driven by increased sales in swine, fish and poultry while cattle declined in the quarter. Sales of swine products grew as a result of expanding herd production in key accounts and increased biosecurity measures in the wake of African Swine Fever in China. The timing of seasonal vaccination protocols in key salmon markets and the recently launched parasiticide Alpha Flux^® were the primary drivers of growth in fish. Growth in our poultry portfolio was the result of increased sales of medicated feed additives and sales of biodevices. Sales of cattle products declined in the quarter due to decreased demand attributable to the impact of COVID-19 in certain markets as well as the discontinuation of non-core products in Brazil.

•Additionally, International segment revenue was unfavorably impacted by foreign exchange, which decreased revenue by approximately $59 million, or 8%, primarily driven by the depreciation of the Brazilian real, Australian dollar, Mexican peso, euro and Argentinian peso.

International segment earnings decreased by $16 million, or 4%, in the three months ended June 30, 2020, compared with the three months ended June 30, 2019. Operational earnings growth was $19 million, or 5%, primarily due to higher revenue and lower operating expenses, partially offset by higher cost of sales.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

U.S. operating segment

U.S. segment revenue increased by $111 million, or 7%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, reflecting increases of approximately $148 million in companion animal products and decreases of approximately $37 million in livestock products.

•Companion animal revenue growth was driven primarily by increased sales of parasiticides including Simparica Trio our new triple combination parasiticide, the key dermatology portfolio and recent acquisitions of Platinum Performance, as well as a number of regional diagnostic reference labs.

•Livestock revenue decreased primarily due to cattle and swine, partially offset by poultry. Cattle decrease was primarily due to continued weakness across both the beef and dairy cattle sectors as well as decreased demand attributable to the negative impact of COVID-19. Swine growth in the first quarter of 2020 was offset by decreased demand attributable to the negative impacts of COVID-19 in the second quarter. Poultry growth was driven by increased sales of vaccines and alternatives to antibiotic medicated feed additives.

U.S. segment earnings increased by $67 million, or 7%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, primarily due to revenue and gross margin growth, partially offset by higher operating expenses due to recent acquisitions.

International operating segment

International segment revenue decreased by $24 million, or 2%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019. Operational revenue increased by $55 million, or 4%, driven by growth of approximately $30 million in companion animal products and growth of approximately $25 million in livestock products.

•Companion animal operational revenue growth resulted primarily from increased sales across our Simparica franchise including the launch of Simparica Trio in Canada and certain markets in the EU as well as our key dermatology portfolio. Growth in companion animal products was partially offset by decreased demand attributable to the impact of COVID-19 and social distancing measures in certain markets that resulted in decreased veterinary clinic traffic.

•Livestock operational revenue growth was driven by increased sales in swine, fish and poultry while cattle declined. Sales of swine products grew as a result of expanding herd production and increased biosecurity measures in the wake of African Swine Fever in China. Alpha Flux, a recently launched parasiticide that controls sea lice in salmon, and the timing of vaccinations was the primary driver of growth in fish. Growth in our poultry portfolio was due to medicated feed additives and vaccines. Sales of cattle products declined due to decreased demand attributable to the impact of COVID-19 in certain markets as well as the discontinuation of non-core products in Brazil.

•Additionally, International segment revenue was unfavorably impacted by foreign exchange which decreased revenue by approximately $80 million, or 6%, primarily driven by the depreciation of the Brazilian real, euro, Argentine peso, Australian dollar and Mexican peso.

International segment earnings decreased by $13 million, or 2%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019. Operational earnings growth was $39 million, or 5%, primarily due to higher revenue and lower operating expenses, partially offset by higher cost of sales.

Other business activities

Other business activities includes our Client Supply Services (CSS) contract manufacturing results, our human health business and expenses associated with our dedicated veterinary medicine research and development organization, research alliances, U.S. regulatory affairs and other operations focused on the development of our products. Other R&D-related costs associated with non-U.S. market and regulatory activities are generally included in the International segment.

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Three months ended June 30, 2020 vs. three months ended June 30, 2019

Other business activities net loss increased by $11 million, in the three months ended June 30, 2020, compared with the three months ended June 30, 2019, reflecting an increase in R&D costs due to an increase in compensation-related costs and project investments, as well as decreases in revenue for CSS and the human health business.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Other business activities net loss increased by $18 million, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, reflecting an increase in R&D costs due to an increase in project investments and compensation-related costs as well as decreases in revenue for CSS and the human health business.

Reconciling items

Reconciling items include certain costs that are not allocated to our operating segments results, such as costs associated with the following:

•Corporate, which includes certain costs associated with information technology, facilities, legal, finance, human resources, business development and communications, among others. These costs also include certain compensation costs, certain procurement costs, and other miscellaneous operating expenses that are not charged to our operating segments, as well as interest income and expense;

•Certain transactions and events such as (i) Purchase accounting adjustments, which includes expenses associated with the amortization of fair value adjustments to inventory, intangible assets, and property, plant and equipment; (ii) Acquisition-related activities, which includes costs for acquisition and integration; and (iii) Certain significant items, which includes non-acquisition-related restructuring charges, certain asset impairment charges, certain legal and commercial settlements, and costs associated with cost reduction/productivity initiatives; and

•Other unallocated, which includes (i) certain overhead expenses associated with our global manufacturing operations not charged to our operating segments; (ii) certain costs associated with information technology and finance that specifically support our global manufacturing operations; (iii) certain supply chain and global logistics costs; and (iv) certain procurement costs.

Three months ended June 30, 2020 vs. three months ended June 30, 2019

Corporate expenses increased by $1 million, or 1%, in the three months ended June 30, 2020, compared with the three months ended June 30, 2020, primarily due to an increase in expenses related to depreciation and recent acquisitions, partially offset by a favorable foreign exchange and a decrease in certain compensation-related costs.

Other unallocated expenses decreased by $3 million, or 4%, in the three months ended June 30, 2020, compared with the three months ended June 30, 2020, primarily due to continued cost improvements and efficiencies in our manufacturing network.

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Corporate expenses increased by $12 million, or 4%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, primarily due to an increase in expenses related to depreciation and recent acquisitions, partially offset by a decrease in certain compensation-related costs and a favorable foreign exchange.

Other unallocated expenses decreased by $11 million, or 7%, in the six months ended June 30, 2020, compared with the six months ended June 30, 2019, primarily due to continued cost improvements and efficiencies in our manufacturing network.

See Notes to Condensed Consolidated Financial Statements—Note 16. Segment Information for further information.

Adjusted net income

General description of adjusted net income (a non-GAAP financial measure)

Adjusted net income is an alternative view of performance used by management, and we believe that investors’ understanding of our performance is enhanced by disclosing this performance measure. The adjusted net income measure is an important internal measurement for us. Additionally, we measure our overall performance on this basis in conjunction with other performance metrics. The following are examples of how the adjusted net income measure is utilized:

•senior management receives a monthly analysis of our operating results that is prepared on an adjusted net income basis;

•our annual budgets are prepared on an adjusted net income basis; and

•other goal setting and performance measurements.

Purchase accounting adjustments

Adjusted net income is calculated prior to considering certain significant purchase accounting impacts that result from business combinations and net asset acquisitions. These impacts, primarily associated with the acquisition of Abaxis (acquired in July 2018), the Pharmaq business (acquired in November 2015), certain assets of Abbott Animal Health (acquired in February 2015), King Animal Health (KAH) (acquired in 2011), Fort Dodge Animal Health (FDAH) (acquired in 2009), and Pharmacia Animal Health business (acquired in 2003), include amortization related to the increase in fair value of the acquired finite-lived intangible assets and depreciation related to the increase/decrease to fair value of the acquired fixed assets. Therefore, the adjusted net income measure includes the revenue earned upon the sale of the acquired products without considering the aforementioned significant charges.

While certain purchase accounting adjustments can occur through 20 or more years, this presentation provides an alternative view of our performance that is used by management to internally assess business performance. We believe the elimination of amortization attributable to

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acquired intangible assets provides management and investors an alternative view of our business results by providing a degree of parity to internally developed intangible assets for which R&D costs previously have been expensed.

A completely accurate comparison of internally developed intangible assets and acquired intangible assets cannot be achieved through adjusted net income. These components of adjusted net income are derived solely from the impact of the items listed above. We have not factored in the impact of any other differences in experience that might have occurred if we had discovered and developed those intangible assets on our own, and this approach does not intend to be representative of the results that would have occurred in those circumstances. For example, our R&D costs in total, and in the periods presented, may have been different; our speed to commercialization and resulting revenue, if any, may have been different; or our costs to manufacture may have been different. In addition, our marketing efforts may have been received differently by our customers. As such, in total, there can be no assurance that our adjusted net income amounts would have been the same as presented had we discovered and developed the acquired intangible assets.

Acquisition-related costs

Adjusted net income is calculated prior to considering transaction and integration costs associated with significant business combinations or net asset acquisitions because these costs are unique to each transaction and represent costs that were incurred to acquire and integrate certain businesses as a result of the acquisition decision. We have made no adjustments for the resulting synergies.

We believe that viewing income prior to considering these charges provides investors with a useful additional perspective because the significant costs incurred in a business combination result primarily from the need to eliminate duplicate assets, activities or employees––a natural result of acquiring a fully integrated set of activities. For this reason, we believe that the costs incurred to convert disparate systems, to close duplicative facilities or to eliminate duplicate positions (for example, in the context of a business combination) can be viewed differently from those costs incurred in the ordinary course of business.

The integration costs associated with a business combination may occur over several years, with the more significant impacts generally ending within three years of the transaction. Because of the need for certain external approvals for some actions, the span of time needed to achieve certain restructuring and integration activities can be lengthy. For example, due to the regulated nature of the animal health medicines, vaccines and diagnostics business, the closure of excess facilities can take several years, as all manufacturing changes are subject to extensive validation and testing and must be approved by the U.S. Food and Drug Administration and/or other regulatory authorities.

Certain significant items

Adjusted net income is calculated excluding certain significant items. Certain significant items represent substantive, unusual items that are evaluated on an individual basis. Such evaluation considers both the quantitative and the qualitative aspect of their unusual nature. Unusual, in this context, may represent items that are not part of our ongoing business; items that, either as a result of their nature or size, we would not expect to occur as part of our normal business on a regular basis; items that would be nonrecurring; or items that relate to products that we no longer sell. While not all-inclusive, examples of items that could be included as certain significant items would be costs related to a major non-acquisition-related restructuring charge and associated implementation costs for a program that is specific in nature with a defined term, such as those related to our non-acquisition-related cost-reduction and productivity initiatives; amounts related to disposals of products or facilities that do not qualify as discontinued operations as defined by U.S. GAAP; certain intangible asset impairments; adjustments related to the resolution of certain tax positions; significant currency devaluation; the impact of adopting certain significant, event-driven tax legislation; or charges related to legal matters. See Notes to Condensed Consolidated Financial Statements— Note 15. Commitments and Contingencies. Our normal, ongoing defense costs or settlements of and accruals on legal matters made in the normal course of our business would not be considered certain significant items.

Reconciliation

A reconciliation of net income, as reported under U.S. GAAP, to adjusted net income follows:  

	Three Months Ended					Six Months Ended
	June 30,				%	June 30,				%
(MILLIONS OF DOLLARS)	2020		2019		Change	2020		2019		Change
GAAP reported net income attributable to Zoetis	$	377	$	371	2	$	800	$	683	17
Purchase accounting adjustments—net of tax	39		45		(13)	71		91		(22)
Acquisition-related costs—net of tax	6		18		(67)	14		22		(36)
Certain significant items—net of tax	5		2		*	(3)		64		*
Non-GAAP adjusted net income(a)	$	427	$	436	(2)	$	882	$	860	3

*Calculation not meaningful.

^(a) The effective tax rate on adjusted pretax income is 22.3% and 19.0% for the three months ended June 30, 2020 and June 30, 2019, respectively. The higher effective tax rate for the three months ended June 30, 2020, compared with the three months ended June 30, 2019, was primarily attributable to (i) changes in the jurisdictional mix of earnings, which includes the impact of the location of earnings as well as repatriation costs, (ii) an $8 million net discrete tax benefit recorded in the three months ended June 30, 2019, primarily related to the effective settlement of certain issues with non-U.S. tax authorities, and (iii) a $1 million and $2 million discrete tax benefit recorded in the three months ended June 30, 2020 and 2019, respectively, related to the excess tax benefits for share-based payments.

The effective tax rate on adjusted pretax income is 19.5% and 18.9% for the six months ended June 30, 2020 and June 30, 2019, respectively. The higher effective tax rate for the six months ended June 30, 2020, compared with the six months ended June 30, 2019, was primarily attributable to (i) changes in the jurisdictional mix of earnings, which includes the impact of the location of earnings as well as repatriation costs, and (ii) a $9 million net discrete tax benefit recorded in the six months ended June 30, 2019, primarily related to the effective settlement of certain issues with non-U.S. tax authorities and changes in

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other tax items, partially offset by a $24 million and $15 million discrete tax benefit recorded in the six months ended June 30, 2020 and 2019, respectively, related to the excess tax benefits for share-based payments.

A reconciliation of reported diluted earnings per share (EPS), as reported under U.S. GAAP, to non-GAAP adjusted diluted EPS follows:

	Three Months Ended					Six Months Ended
	June 30,				%	June 30,				%
	2020		2019		Change	2020		2019		Change
Earnings per share—diluted(a):
GAAP reported EPS attributable to Zoetis —diluted	$	0.79	$	0.77	3	$	1.67	$	1.41	18
Purchase accounting adjustments—net of tax	0.08		0.09		(11)	0.15		0.19		(21)
Acquisition-related costs—net of tax	0.01		0.04		(75)	0.03		0.05		(40)
Certain significant items—net of tax	0.01		—		*	(0.01)		0.13		*
Non-GAAP adjusted EPS—diluted	$	0.89	$	0.90	(1)	$	1.84	$	1.78	3

* Calculation not meaningful.

^(a) Diluted earnings per share was computed using the weighted-average common shares outstanding during the period plus the common stock equivalents related to stock options, restricted stock units, performance-vesting restricted stock units and deferred stock units.

Adjusted net income includes the following charges for each of the periods presented:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Interest expense, net of capitalized interest	$	58	$	55	$	111	$	111
Interest income	2		9		8		19
Income taxes	122		102		214		200
Depreciation	48		37		95		75
Amortization	10		6		19		11

Adjusted net income, as shown above, excludes the following items:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Purchase accounting adjustments:
Amortization and depreciation(a)	$	51	$	52	$	103	$	104
Cost of sales(b)	2		5		4		19
Research & development	—		1		—		1
Total purchase accounting adjustments—pre-tax	53		58		107		124
Income taxes(c)	14		13		36		33
Total purchase accounting adjustments—net of tax	39		45		71		91
Acquisition-related costs:
Integration costs	6		8		12		9
Restructuring costs	1		14		2		18
Total acquisition-related costs—pre-tax	7		22		14		27
Income taxes(c)	1		4		—		5
Total acquisition-related costs—net of tax	6		18		14		22
Certain significant items:
Operational efficiency initiative(d)	—		—		(17)		—
Supply network strategy(e)	1		3		3		5
Other restructuring charges and cost-reduction/productivity initiatives(f)	1		—		3		—
Other(g)	4		—		6		68
Total certain significant items—pre-tax	6		3		(5)		73
Income taxes(c)	1		1		(2)		9
Total certain significant items—net of tax	5		2		(3)		64
Total purchase accounting adjustments, acquisition-related costs, and certain significant items—net of tax	$	50	$	65	$	82	$	177

^(a)  Amortization and depreciation expenses related to Purchase accounting adjustments with respect to identifiable intangible assets and property, plant and equipment.

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^(b) Amortization and depreciation expense, as well as fair value adjustments to acquired inventory.

^(c)  Income taxes include the tax effect of the associated pre-tax amounts, calculated by determining the jurisdictional location of the pre-tax amounts and applying that jurisdiction's applicable tax rate.

 Income taxes in Purchase accounting adjustments also includes a tax benefit related to a remeasurement of deferred taxes resulting from the integration of acquired businesses for the three and six months ended June 30, 2020, in addition to a tax benefit related to a remeasurement of deferred taxes as a result of changes in non-U.S. statutory tax rates, for the three and six months ended June 30, 2020 and June 30, 2019.

        Income taxes in Acquisition-related costs also includes a tax charge related to a remeasurement of deferred taxes resulting from the integration of acquired businesses for the six months ended June 30, 2020.  

^(d)  For the six months ended June 30, 2020, represents a net gain resulting from net cash proceeds pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites.

^(e) Represents consulting fees related to cost-reduction and productivity initiatives.

^(f) For the three and six months ended June 30, 2020, represents employee termination costs incurred as a result of the CEO transition.

^(g) For the three and six months ended June 30, 2020, primarily represents CEO transition-related costs. For the three and six months ended June 30, 2019, primarily represents a change in estimate related to inventory costing.

The classification of the above items excluded from adjusted net income are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Cost of sales:
Purchase accounting adjustments	$	2	$	5	$	4	$	19
Consulting fees	1		3		3		5
Other	—		—		—		68
Total Cost of sales	3		8		7		92
Selling, general & administrative expenses:
Purchase accounting adjustments	17		18		35		36
Other	4		—		6		—
Total Selling, general & administrative expenses	21		18		41		36
Research & development expenses:
Purchase accounting adjustments	1		1		1		1
Total Research & development expenses	1		1		1		1
Amortization of intangible assets:
Purchase accounting adjustments	33		34		67		68
Total Amortization of intangible assets	33		34		67		68
Restructuring charges/(reversals) and certain acquisition-related costs:
Integration costs	6		8		12		9
Employee termination costs	2		14		5		18
Total Restructuring charges/(reversals) and certain acquisition-related costs	8		22		17		27
Other (income)/deductions—net:
Net (gain)/loss on sale of assets	—		—		(17)		—
Total Other (income)/deductions—net	—		—		(17)		—
Provision for taxes on income	16		18		34		47
Total purchase accounting adjustments, acquisition-related costs, and certain significant items—net of tax	$	50	$	65	$	82	$	177

Analysis of the condensed consolidated statements of comprehensive income

Substantially all changes in other comprehensive income for the periods presented are related to foreign currency translation adjustments. These changes result from the strengthening or weakening of the U.S. dollar as compared to the currencies in the countries in which we do business. The gains and losses associated with these changes are deferred on the balance sheet in Accumulated other comprehensive loss until realized.

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Analysis of the condensed consolidated balance sheets

June 30, 2020 vs. December 31, 2019

For a discussion about the changes in Cash and cash equivalents, Short-term borrowings, and Long-term debt, net of discount and issuance costs, see “Analysis of financial condition, liquidity and capital resources” below.

Accounts Receivable, less allowance for doubtful accounts decreased as a result of lower sales related to seasonality, the impact of foreign exchange and timing of customer payments and rebate credits issued to customers.

Inventories increased for a new product launch, lower sales than anticipated for certain products and increases in safety stock levels. See Notes to Condensed Consolidated Financial Statements - Note 10. Inventories.

Other current assets increased primarily as a result of the timing of income tax payments and an increase in fair value of cross-currency interest rate swap contracts.

Identifiable intangible assets, less accumulated amortization decreased primarily due to amortization expense and the impact of foreign exchange, partially offset by intangible asset additions from acquisitions. See Notes to Condensed Consolidated Financial Statements - Note 11. Goodwill and Other Intangible Assets.

Accounts payable increased as a result of the timing of payments.

Accrued expenses decreased primarily as a result of the timing of payments of customer rebates from the prior period.

Accrued compensation and related items decreased primarily due to payment of 2019 annual bonuses to eligible employees, a reduction in sales incentive bonuses and 2019 employee savings plan contributions, partially offset by the pro rata accrual of similar items for 2020.

The net changes in Noncurrent deferred tax assets, Noncurrent deferred tax liabilities, Income taxes payable and Other taxes payable primarily reflect adjustments to the accrual for the income tax provision, the timing of income tax payments, and the impact of the remeasurement of deferred taxes as a result of changes in tax rates and the integration of acquired businesses.

Other current liabilities and Other noncurrent liabilities increased primarily due to the mark-to-mark adjustment of cross-currency interest rate swaps.

For an analysis of the changes in Total Equity, see the Condensed Consolidated Statements of Equity and Notes to Condensed Consolidated Financial Statements— Note 13. Stockholders' Equity.

Analysis of the condensed consolidated statements of cash flows

	Six Months Ended
	June 30,				%
(MILLIONS OF DOLLARS)	2020		2019		Change
Net cash provided by (used in):
Operating activities	$	846	$	707	20
Investing activities	(221)		(82)		*
Financing activities	813		(469)		*
Effect of exchange-rate changes on cash and cash equivalents	(19)		(3)		*
Net increase in cash and cash equivalents	$	1,419	$	153	*

*Calculation not meaningful.

Operating activities

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Net cash provided by operating activities was $846 million for the six months ended June 30, 2020, and $707 million for the six months ended June 30, 2019. The increase in net income after non-cash adjustments was partially offset by timing of payments in the ordinary course of business.

Investing activities

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Our net cash used in investing activities was $221 million for the six months ended June 30, 2020, compared with net cash used in investing activities of $82 million for the six months ended June 30, 2019. The net cash used in investing activities for 2020 was primarily due to capital expenditures and acquisitions, partially offset by proceeds from the sale of assets, including a contingent payment received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites and proceeds from cross-currency interest rate swaps. The net cash used in investing activities for 2019 was primarily due to purchases of property, plant and equipment, partially offset by proceeds from the maturities of debt securities and proceeds from cross-currency interest rate swaps.

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Financing activities

Six months ended June 30, 2020 vs. six months ended June 30, 2019

Our net cash provided by financing activities was $813 million for the six months ended June 30, 2020, compared with net cash used in financing activities of $469 million for the six months ended June 30, 2019. The net cash provided by financing activities for 2020 was primarily attributable to the proceeds received from the issuance of senior notes in May 2020 and net proceeds in connection with the issuance of common stock under our equity incentive plan, partially offset by the purchase of treasury shares and the payment of dividends. The net cash used in financing activities for 2019 was primarily attributable to the purchase of treasury shares, the payment of dividends, the payment of short-term borrowings and the payments of contingent consideration related to the 2016 acquisition of certain intangible assets related to our livestock product portfolio and the 2018 acquisition of a manufacturing business in Ireland.

Analysis of financial condition, liquidity and capital resources

While we believe our cash and cash equivalents on hand, our operating cash flows and our existing financing arrangements will be sufficient to support our future cash needs, this may be subject to the environment in which we operate. Risks to our ability to meet future funding requirements include global economic conditions described in the following paragraph.

Global financial markets may be impacted by macroeconomic, business and financial volatility. As markets change, we will continue to monitor our liquidity position, but there can be no assurance that a challenging economic environment or an economic downturn will not impact our liquidity or our ability to obtain future financing.

Selected measures of liquidity and capital resources

Certain relevant measures of our liquidity and capital resources follow:

	June 30,		December 31,
(MILLIONS OF DOLLARS)	2020		2019
Cash and cash equivalents	$	3,353	$	1,934
Accounts receivable, net(a)	984		1,086
Current portion of long-term debt	500		500
Long-term debt, net of discount and issuance costs	7,194		5,947
Working capital	4,474		2,942
Ratio of current assets to current liabilities	3.47:1		2.63:1

^(a) Accounts receivable are usually collected over a period of 45 to 75 days. For the six months ended June 30, 2020, compared with December 31, 2019, the number of days that accounts receivables are outstanding remained approximately the same. We regularly monitor our accounts receivable for collectability, particularly in markets where economic conditions remain uncertain. We believe that our allowance for doubtful accounts is appropriate. Our assessment is based on such factors as past due aging, historical and expected collection patterns, the financial condition of our customers, the robust nature of our credit and collection practices and the economic environment.

For additional information about the sources and uses of our funds, see the Analysis of the condensed consolidated balance sheets and Analysis of the condensed consolidated statements of cash flows sections of this MD&A.

Credit facility and other lines of credit

In December 2016, we entered into an amended and restated revolving credit agreement with a syndicate of banks providing for a multi-year $1.0 billion senior unsecured revolving credit facility (the credit facility). In December 2018, the maturity for the amended and restated credit facility was extended through December 2023. Subject to certain conditions, we have the right to increase the credit facility to up to $1.5 billion. The credit facility contains a financial covenant requiring us to not exceed a maximum total leverage ratio (the ratio of consolidated net debt as of the end of the period to consolidated Earnings Before Interest, Income Taxes, Depreciation and Amortization (EBITDA) for such period) of 3.5:1. Upon entering into a material acquisition, the maximum total leverage ratio increases to 4:1, and extends until the fourth full consecutive fiscal quarter ended immediately following the consummation of a material acquisition.

The credit facility also contains a financial covenant requiring that we maintain a minimum interest coverage ratio (the ratio of EBITDA at the end of the period to interest expense for such period) of 3.50:1. In addition, the credit facility contains other customary covenants.

We were in compliance with all financial covenants as of June 30, 2020 and December 31, 2019. There were no amounts drawn under the credit facility as of June 30, 2020 or December 31, 2019.

We have additional lines of credit and other credit arrangements with a group of banks and other financial intermediaries for general corporate purposes. We maintain cash and cash equivalent balances in excess of our outstanding short-term borrowings. As of June 30, 2020, we had access to $75 million of lines of credit which expire at various times through 2020, and are generally renewed annually. There were $1.5 million of borrowings outstanding related to these facilities as of June 30, 2020 and no borrowings outstanding as of December 31, 2019.

Domestic and international short-term funds

Many of our operations are conducted outside the U.S. The amount of funds held in the U.S. will fluctuate due to the timing of receipts and payments in the ordinary course of business and due to other reasons, such as business development activities. As part of our ongoing liquidity assessments, we regularly monitor the mix of U.S. and international cash flows (both inflows and outflows). Actual repatriation of overseas

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funds can result in additional U.S. and local income taxes, such as U.S. state income taxes, local withholding taxes, and taxes on currency gains and losses.

Global economic conditions

Challenging economic conditions in recent years have not had, nor do we anticipate that it will have, a significant impact on our liquidity. Due to our operating cash flows, financial assets, access to capital markets and available lines of credit and revolving credit agreements, we continue to believe that we have the ability to meet our liquidity needs for the foreseeable future. As markets change, we continue to monitor our liquidity position. There can be no assurance that a challenging economic environment or an economic downturn would not impact our ability to obtain financing in the future.

Debt

On May 12, 2020, we issued $1.25 billion aggregate principal amount of our senior notes (2020 senior notes), with an original issue discount of $10 million. These notes are comprised of $750 million aggregate principal amount of 2.000% senior notes due 2030 and $500 million aggregate principal amount of 3.000% senior notes due 2050. The net proceeds will be used to repay the principal of our 3.450% senior notes due 2020 in the aggregate principal amount of $500 million and for general corporate purposes.

On August 20, 2018, we issued $1.5 billion aggregate principal amount of our senior notes (2018 senior notes), with an original issue discount of $4 million. On September 12, 2017, we issued $1.25 billion aggregate principal amount of our senior notes (2017 senior notes), with an original issue discount of $7 million. On November 13, 2015, we issued $1.25 billion aggregate principal amount of our senior notes (2015 senior notes), with an original issue discount of $2 million. On January 28, 2013, we issued $3.65 billion aggregate principal amount of our senior notes (2013 senior notes) in a private placement, with an original issue discount of $10 million.

The 2013, 2015, 2017, 2018 and 2020 senior notes are governed by an indenture and supplemental indenture (collectively, the indenture) between us and Deutsche Bank Trust Company Americas, as trustee. The indenture contains certain covenants, including limitations on our and certain of our subsidiaries' ability to incur liens or engage in sale lease-back transactions. The indenture also contains restrictions on our ability to consolidate, merge or sell substantially all of our assets. In addition, the indenture contains other customary terms, including certain events of default, upon the occurrence of which (if not cured or waived), the 2013, 2015, 2017, 2018 and 2020 senior notes may be declared immediately due and payable.

Pursuant to the indenture, we are able to redeem the 2013, 2015, 2017 and 2020 senior notes and the 2018 fixed rate senior notes of any series, in whole or in part, at any time by paying a “make whole” premium, plus accrued and unpaid interest to, but excluding, the date of redemption. The 2018 floating rate senior notes are not redeemable at our option prior to their maturity date. Pursuant to our tax matters agreement with Pfizer, we will not be permitted to redeem the 2013 senior notes due 2023 pursuant to this optional redemption provision, except under limited circumstances. Upon the occurrence of a change of control of us and a downgrade of the 2013, 2015, 2017, 2018 and 2020 senior notes below an investment grade rating by each of Moody's Investors Service, Inc. and Standard & Poor's Ratings Services, we are, in certain circumstances, required to make an offer to repurchase all of the outstanding 2013, 2015, 2017, 2018 and 2020 senior notes at a price equal to 101% of the aggregate principal amount of the 2013, 2015, 2017, 2018 and 2020 senior notes together with accrued and unpaid interest to, but excluding, the date of repurchase.

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The components of our long-term debt follow:

Description	Principal Amount	Interest Rate	Terms
2015 Senior Notes due 2020	$500 million	3.450%	Interest due semi annually, not subject to amortization, aggregate principal due on November 13, 2020
2018 Floating Rate Senior Notes due 2021	$300 million	Three-month USD LIBOR plus 0.44%	Interest due quarterly, not subject to amortization, aggregate principal due on August 20, 2021
2018 Senior Notes due 2021	$300 million	3.250%	Interest due semi annually, not subject to amortization, aggregate principal due on August 20, 2021
2013 Senior Notes due 2023	$1,350 million	3.250%	Interest due semi annually, not subject to amortization, aggregate principal due on February 1, 2023
2015 Senior Notes due 2025	$750 million	4.500%	Interest due semi annually, not subject to amortization, aggregate principal due on November 13, 2025
2017 Senior Notes due 2027	$750 million	3.000%	Interest due semi annually, not subject to amortization, aggregate principal due on September 12, 2027
2018 Senior Notes due 2028	$500 million	3.900%	Interest due semi annually, not subject to amortization, aggregate principal due on August 20, 2028
2020 Senior Notes due 2030	$750 million	2.000%	Interest due semi annually, not subject to amortization, aggregate principal due on May 15, 2030
2013 Senior Notes due 2043	$1,150 million	4.700%	Interest due semi annually, not subject to amortization, aggregate principal due on February 1, 2043
2017 Senior Notes due 2047	$500 million	3.950%	Interest due semi annually, not subject to amortization, aggregate principal due on September 12, 2047
2018 Senior Notes due 2048	$400 million	4.450%	Interest due semi annually, not subject to amortization, aggregate principal due on August 20, 2048
2020 Senior Notes due 2050	$500 million	3.000%	Interest due semi annually, not subject to amortization, aggregate principal due on May 15, 2050

Credit Ratings

Two major corporate debt-rating organizations, Moody's and S&P, assign ratings to our short-term and long-term debt. A security rating is not a recommendation to buy, sell or hold securities and the rating is subject to revision or withdrawal at any time by the rating organization. Each rating should be evaluated independently of any other rating.

The following table provides the current ratings assigned by these rating agencies to our commercial paper and senior unsecured non-credit-enhanced long-term debt:

	Commercial
	Paper	Long-term Debt		Date of
Name of Rating Agency	Rating	Rating	Outlook	Last Action
Moody’s	P-2	Baa1	Stable	August 2017
S&P	A-2	BBB	Stable	December 2016

Share Repurchase Program

In December 2018, the company's Board of Directors authorized a $2.0 billion share repurchase program. As of June 30, 2020, there was approximately $1.4 billion remaining under this authorization. Purchases of Zoetis shares may be made at the discretion of management, depending on market conditions and business needs. Share repurchases may be executed through various means, including open market or privately negotiated transactions. During the first three months of 2020, approximately 1.8 million shares were repurchased. We temporarily suspended share repurchases beginning in the second quarter of 2020.

Off-balance sheet arrangements

In the ordinary course of business and in connection with the sale of assets and businesses, we may indemnify our counterparties against certain liabilities that may arise in connection with a transaction or that are related to activities prior to a transaction. These indemnifications typically pertain to environmental, tax, employee and/or product-related matters, and patent-infringement claims. If the indemnified party were to make a successful claim pursuant to the terms of the indemnification, we would be required to reimburse the loss. These indemnifications are generally subject to threshold amounts, specified claim periods and other restrictions and limitations. Historically, we have not paid significant amounts under these provisions and, as of June 30, 2020, or December 31, 2019, recorded amounts for the estimated fair value of these indemnifications are not significant.

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New accounting standards

Recently Issued Accounting Standards Not Adopted as of June 30, 2020

A description of recently issued accounting standards is contained in Note 3. Accounting Standards of the Notes to Condensed Consolidated Financial Statements.

Forward-looking statements and factors that may affect future results

This report contains “forward-looking” statements. We generally identify forward-looking statements by using words such as “anticipate,” “estimate,” “could,” “expect,” “intend,” “project,” “plan,” “predict,” “believe,” “seek,” “continue,” “outlook,” “objective,” “target,” “may,” “might,” “will,” “should,” “can have,” “likely” or the negative version of these words or comparable words or by using future dates in connection with any discussion of future performance, actions or events.

In particular, forward-looking statements include statements relating to the impact of the COVID-19 pandemic, our 2020 financial guidance, future actions, business plans or prospects, prospective products, product approvals or products under development, product supply disruptions, R&D costs, timing and likelihood of success, future operating or financial performance, future results of current and anticipated products and services, strategies, sales efforts, expenses, production efficiencies, production margins, anticipated timing of generic market entries, integration of acquired businesses, interest rates, tax rates, changes in tax regimes and laws, foreign exchange rates, growth in emerging markets, the outcome of contingencies, such as legal proceedings, plans related to share repurchases and dividends, government regulation and financial results. These statements are not guarantees of future performance, actions or events. Forward-looking statements are subject to risks and uncertainties, many of which are beyond our control, and are based on assumptions that could prove to be inaccurate. Among the factors that could cause actual results to differ materially from past results and future plans and projected future results are the following:

•the impact of the COVID-19 pandemic on our business, suppliers, customers and workforce;

•unanticipated safety, quality or efficacy concerns about our products;

•issues with any of our top products;

•failure of our R&D, acquisition and licensing efforts to generate new products and product lifecycle innovations;

•the possible impact and timing of competing products, including generic alternatives, on our products and our ability to compete against such products;

•disruptive innovations and advances in medical practices and technologies;

•difficulties and delays in the development or commercialization of new products;

•consolidation of our customers and distributors;

•changes in the distribution channel for companion animal products;

•failure to successfully acquire businesses, license rights or products, integrate businesses, form and manage alliances or divest businesses;

•acquiring or implementing new business lines or offering new products and services;

•restrictions and bans on the use of and consumer preferences regarding antibacterials in food-producing animals;

•perceived adverse effects linked to the consumption of food derived from animals that utilize our products or animals generally;

•adverse global economic conditions;

•increased regulation or decreased governmental support relating to the raising, processing or consumption of food-producing animals;

•fluctuations in foreign exchange rates and potential currency controls;

•changes in tax laws and regulations;

•legal factors, including product liability claims, antitrust litigation and governmental investigations, including tax disputes, environmental concerns, commercial disputes and patent disputes with branded and generic competitors, any of which could preclude commercialization of products or negatively affect the profitability of existing products;

•failure to protect our intellectual property rights or to operate our business without infringing the intellectual property rights of others;

•product launch delays, inventory shortages, recalls or unanticipated costs caused by manufacturing problems and capacity imbalances;

•an outbreak of infectious disease carried by animals;

•adverse weather conditions and the availability of natural resources;

•the economic, political, legal and business environment of the foreign jurisdictions in which we do business;

•a cyber-attack, information security breach or other misappropriation of our data;

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•quarterly fluctuations in demand and costs;

•governmental laws and regulations affecting domestic and foreign operations, including without limitation, tax obligations and changes affecting the tax treatment by the U.S. of income earned outside the U.S. that may result from pending and possible future proposals; and

•governmental laws and regulations affecting our interactions with veterinary healthcare providers.

However, there may also be other risks that we are unable to predict at this time. These risks or uncertainties may cause actual results to differ materially from those contemplated by a forward-looking statement. Such risks and uncertainties may be amplified by the COVID-19 pandemic and its impact on the global economy and our business. You should not put undue reliance on forward-looking statements. Forward-looking statements speak only as of the date on which they are made. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law or by the rules and regulations of the SEC. You are advised, however, to consult any further disclosures we make on related subjects in our Form 10-Q and 8-K reports and our other filings with the SEC. You should understand that it is not possible to predict or identify all such factors. Consequently, you should not consider the above to be a complete discussion of all potential risks or uncertainties.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

A significant portion of our revenue and costs are exposed to changes in foreign exchange rates. In addition, our outstanding borrowings may be subject to risk from changes in interest rates and foreign exchange rates. The overall objective of our financial risk management program is to seek to minimize the impact of foreign exchange rate movements and interest rate movements on our earnings. We manage these financial exposures through operational means and by using certain financial instruments. These practices may change as economic conditions change.

Foreign exchange risk

Our primary net foreign currency translation exposures are the Australian dollar, Brazilian real, Canadian dollar, Chinese yuan, euro, Japanese yen and British pound. We seek to manage our foreign exchange risk, in part, through operational means, including managing same-currency revenue in relation to same-currency costs and same-currency assets in relation to same-currency liabilities.

Foreign exchange risk is also managed through the use of foreign currency forward-exchange contracts. These contracts are used to offset the potential earnings effects from mostly intercompany short-term foreign currency assets and liabilities that arise from operations.

Our financial instrument holdings at June 30, 2020, were analyzed to determine their sensitivity to foreign exchange rate changes. The fair values of these instruments were determined using Level 2 inputs. The sensitivity analysis of changes in the fair value of all foreign currency forward-exchange contracts at June 30, 2020, indicates that if the U.S. dollar were to appreciate against all other currencies by 10%, the fair value of these contracts would increase by $9 million, and if the U.S. dollar were to weaken against all other currencies by 10%, the fair value of these contracts would decrease by $14 million. For additional details, see Notes to Condensed Consolidated Financial Statements— Note 9C. Financial Instruments: Derivative Financial Instruments.

Interest rate risk

Our outstanding debt balances are predominantly fixed rate debt. While changes in interest rates will have no impact on the interest we pay on our fixed rate debt, interest on our $300 million aggregate principal amount of 2018 Floating Rate Senior Notes due 2021, as well as interest on our commercial paper and revolving credit facility will be exposed to interest rate fluctuations. Additionally, as of June 30, 2020, we held certain interest rate swap agreements that have the economic effect of modifying the fixed-interest obligations associated with our 3.900% senior notes due 2028, so that a portion of the fixed-rate interest payable on these senior notes effectively became variable based on LIBOR. At June 30, 2020, there were no commercial paper borrowings outstanding and $1.5 million outstanding principal balance under our revolving credit facility.

By issuing the Floating Rate Notes and by entering into the aforementioned swap arrangements, we have assumed risks associated with variable interest rates based upon LIBOR. Changes in the overall level of interest rates affect the interest expense that we recognize in our Consolidated Statements of Income. An interest rate risk sensitivity analysis is used to measure interest rate risk by computing estimated changes in cash flows as a result of assumed changes in market interest rates. As of June 30, 2020, if LIBOR-based interest rates would have been higher by 100 basis points, the change would have increased our interest expense annually by approximately $4.5 million, as it relates to our fixed to floating interest rate swap agreements and floating-rate borrowings. See Notes to Condensed Consolidated Financial Statements— Note 9. Financial Instruments.

Item 4. Controls and Procedures

Disclosure Controls and Procedures

An evaluation was carried out under the supervision and with the participation of the company's management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934). Based upon that evaluation as of June 30, 2020, the company's Chief Executive Officer and Chief Financial Officer concluded that the company's disclosure controls and procedures are effective at a reasonable level of assurance in alerting them in a timely manner to material information required to be disclosed in our periodic reports filed with the SEC.

Changes in Internal Control over Financial Reporting

During our most recent fiscal quarter, there has not been any change in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934) that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II — OTHER INFORMATION

Item 1. Legal Proceedings

The information required by this Item is incorporated herein by reference to Notes to Condensed Consolidated Financial Statements—Note 15. Commitments and Contingencies in Part I— Item 1, of this Quarterly Report on Form 10-Q.

Item 1A.  Risk Factors

In addition to the other information set forth in this Form 10-Q, you should carefully consider the factors discussed in the "Our Operating Environment" and "Forward-Looking Statements and Factors That May Affect Future Results" sections of the MD&A and in Part I, Item 1A. "Risk Factors," of our 2019 Annual Report on Form 10-K, which could materially affect our business, financial condition, or future results and which are incorporated by reference herein. Set forth below are updates to certain of the risk factors disclosed in our 2019 Annual Report on Form 10-K.

Risks related to our business and industry

The COVID-19 pandemic has negatively affected the global economy; has disrupted our and our customers', suppliers', and vendors' operations; has significantly affected our business, financial condition, results of operations and cash flows; and may materially adversely affect our business, financial condition, results of operations and/or cash flows.

The novel coronavirus (COVID-19) was identified in China in late 2019 and has spread globally. The World Health Organization declared COVID-19 a global pandemic. The rapid spread has resulted in authorities implementing numerous measures to try to contain the virus, such as travel bans and restrictions, quarantines, shelter in place orders and shutdowns of non-essential businesses. Even though we are currently designated as an essential business and have continued physical operations with respect to manufacturing and supply chain globally, these measures have impacted and may further impact all or portions of our workforce and operations, the operations and workforce of our customers, and those of our respective vendors and suppliers. There is no certainty that measures taken by governmental authorities will be sufficient to mitigate the risks posed by the virus, and our ability to continue to perform critical functions could be harmed.

We, and the contract manufacturing organizations (CMOs) we work with, have significant manufacturing operations throughout the world, and most, if not all, of the countries where they are located have been affected by the pandemic and have taken measures to try to contain it. There is considerable uncertainty regarding such measures and potential future measures. In particular, we, and the CMOs we work with, could be asked or ordered to perform certain activities for human health that would divert significant manufacturing and other resources away from our business. Such human health activities could also expose us to additional liability. Future restrictions on our access to or control over our manufacturing facilities or on our support operations or workforce, or similar limitations on our vendors or suppliers, and restrictions or disruptions of transportation, such as reduced availability of air transport, port closures and increased border controls or closures, or export bans could limit our ability to meet customer demand and have a material adverse effect on our business, financial condition, results of operations and/or cash flows.

The COVID-19 pandemic also has and may continue to reduce demand for our products as a result of the negative impact it has had and may continue to have on our livestock and companion animal customers. Our livestock customers have been and may continue to be challenged by voluntary or mandatory facility closures, reduced packing plant capacity, travel bans and quarantines inhibiting consumption of protein and transportation of live animals, and labor shortages negatively impacting their operations. For example, a number of significant meat processing plants have closed temporarily in recent months after employees tested positive for COVID-19. In addition, despite recent increases in telemedicine, our companion animal customers’ businesses have been and may continue to be negatively impacted by reduced demand for their veterinary services. The resulting reduction in demand for our products, has had a significant adverse effect on our business, financial condition, results of operations and cash flows and may have a material adverse effect on our business, financial condition, results of operations and/or cash flows, particularly if such demand reduction is prolonged.

Moreover, measures imposed by governments and other authorities to try to contain the COVID-19 pandemic, such as travel bans, quarantines and restrictions on veterinary services, may impede the ability of our R&D organization to complete clinical studies required to register new products in the manner and on the timeline we anticipate. If such measures become increasingly restrictive in nature, current and future product approvals may be delayed, which could have a material adverse effect on our business, financial condition, results of operations and/or cash flows.

The COVID-19 pandemic has also significantly increased economic and demand uncertainty and has led to disruption and volatility in the global capital markets, which could increase the cost of capital and adversely impact access to capital. The economic impact of the ongoing COVID-19 pandemic has resulted in a global recession that may continue for an unknown period of time. In order to preserve liquidity, we issued debt securities in May 2020 and we may incur additional indebtedness, whether through the issuance of debt securities, drawdowns under our credit facility or otherwise in the future. An increase in our outstanding indebtedness will result in additional interest expense. We may also seek to conserve cash by reducing or canceling future dividends or delaying capital expenditures. Risks related to negative economic conditions are described in our risk factor titled "Our business is subject to risk based on global economic conditions" under “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2019.

Additionally, many of our workforce are currently working remotely as a result of the pandemic. An extended period of remote work arrangements could introduce operational risks, including, but not limited to, risks associated with information technology and systems, including service interruptions, misappropriation of data, or breaches of security, any of which could have a material adverse effect on our

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business. Working outside of the typical work environment may also introduce additional complexity or inefficiency into our normal processes for key areas like the preparation of financial statements or marketing and sales, which could negatively impact our business.

The ultimate magnitude of the COVID-19 pandemic, including the extent of its impact on our financial and operational results, which has been significant, and may be material, will be determined by the length of time that the pandemic continues (including any relapse or resurgence), its effect on the demand for our products and services, particularly due to impacts on our downstream customers, and on our supply chain, as well as the effect of governmental regulations imposed in response to the pandemic. We cannot at this time predict the full impact of the COVID-19 pandemic, but we anticipate that the COVID-19 pandemic is likely to have a significant impact on our business, financial condition, results of operations and/or cash flows for the remainder of 2020. In addition, actions we have taken or may take, or decisions we have made or may make, as a consequence of the COVID-19 pandemic, including as part of the reopening process, may also result in legal claims or litigation against us. The impact of the COVID-19 pandemic may also exacerbate other risks discussed in the Risk Factors section of our Annual Report on Form 10-K for the year ended December 31, 2019, any of which could have a material effect on us. This situation is changing rapidly and additional impacts may arise that we are not aware of currently.

Generic and other products may be viewed as more cost-effective than our products.

We face competition from products produced by other companies, including generic alternatives to our products. We depend on patents and regulatory data exclusivity periods to provide us with exclusive marketing rights for some of our products. Patents for individual products expire at different times based on the date of the patent filing (or sometimes the date of patent grant) and the legal term of patents in the countries where such patents are obtained. The extent of protection afforded by our patents varies from country to country and is limited by the scope of the claimed subject matter of our patents, the term of the patent and the availability and enforcement of legal remedies in the applicable country. As a result, we face competition from lower-priced generic alternatives to many of our products that no longer have patent protection. In certain circumstances, we have been forced to lower our prices and provide discounts or rebates in order to compete with generic products. Generic competitors are becoming more aggressive in terms of launching at risk before patent rights expire and, because of their pricing, are an increasing percentage of overall animal health sales in certain regions. For example, several companies have launched generic versions of our Rimadyl^® chewable product. As a result of generic and other competition, sales of our Rimadyl chewable product in the U.S. have declined by approximately 24% in the years since their introduction. Sales of our Clavamox^® products in the U.S. also continue to be negatively impacted by generic competition.

Although the impact of generic competition in the animal health industry to date has not typically mirrored that seen in human health, in certain markets, the impact of generic competition in the future may more closely mirror human health as a result of changes in industry dynamics, such as channel expansion, customer consolidation, an increase in the availability and use of pet insurance and the potential for generic competition by established animal health businesses. If animal health customers increase their use of new or existing generic products, our operating results and financial condition could be materially adversely affected.

Over the next few years, several of our products' patents will expire. Draxxin^®, containing the active ingredient tulathromycin, is covered by formulation patents in the U.S., Europe, Canada, Australia and other key markets, with terms that expire between November 2020 and February 2021 in the U.S., Europe, Canada and Australia. The active ingredient tulathromycin is protected in Japan until 2023. Generic tulathromycin products are marketed in certain countries including Colombia, Vietnam, Belarus, Russia, Poland and Croatia. Marketing authorizations for generic tulathromycin products have been granted in Europe, Canada and Australia. There are pending marketing authorizations for generic tulathromycin products in Australia and additional authorizations may be granted in various markets in the future. A generic of Draxxin 25mg/ml has entered the market in Europe. At this time, market entry by generic tulathromycin products in the U.S. is not anticipated before February 2021. Several patents covering the ceftiofur antibiotic product line (Excede^®) began expiring in the U.S. in 2015. However, various formulation and use patents relevant to the product line extend through to 2024. Generic versions of Excede have entered the market in Mexico. At this time, the market entry of a generic version of Excede in the U.S. is not anticipated before 2024. The compound patent for selamectin, the active ingredient in our parasiticides Revolution^® and Stronghold^®, expired in 2014. Formulation patents covering these products expired in important markets in 2019. Generic versions of selamectin are now marketed in markets including the U.S., Europe, Australia and Canada. Draxxin, Revolution/Stronghold, and the ceftiofur product line contributed approximately 16% of our revenue in 2019. In addition, the patent for the active ingredient of Convenia^® has expired, however, there are formulation patents relevant to the product line which expire between November 2022 and October 2023. The patent for the active ingredient of Cerenia^® has expired; however, there are formulation patents relevant to the product line which expire between May 2020 and January 2027. A generic version of Cerenia has been registered in Europe and is marketed in the European Union, and there is a pending registration in Canada. At this time, there is no indication of market entry of a generic version of Cerenia in the U.S. The formulation patent covering ProHeart^® 12 expired in the U.S. in 2019, but expires in Australia, Canada and Japan in October 2021. Zoetis typically enforces its patents whenever appropriate both within and outside the U.S., including by filing infringement claims against other parties.

Risks related to our indebtedness

We have substantial indebtedness.

We have a significant amount of indebtedness, which could materially adversely affect our operating results, financial condition and liquidity. As of June 30, 2020, we had approximately $7.75 billion of total unsecured indebtedness outstanding. In addition, we currently have agreements for a multi-year revolving credit facility and a commercial paper program, each with a capacity of up to $1.0 billion. While we currently do not have any amounts drawn under the credit facility nor any commercial paper issued under the commercial paper program, we may incur indebtedness under these arrangements in the future.

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We may incur substantial additional debt from time to time to finance working capital, capital expenditures, investments or acquisitions, or for other purposes. If we do so, the risks related to our high level of debt could intensify. Specifically, our high level of debt could have important consequences, including:

•making it more difficult for us to satisfy our obligations with respect to our debt;

•limiting our ability to obtain additional financing to fund future working capital, capital expenditures, business development or other general corporate requirements, including dividends;

•increasing our vulnerability to general adverse economic and industry conditions;

•exposing us to the risk of increased interest rates as certain of our borrowings are and may in the future be at variable rates of interest;

•limiting our flexibility in planning for and reacting to changes in the animal health industry;

•placing us at a competitive disadvantage to other, less leveraged competitors;

•impacting our effective tax rate; and

•increasing our cost of borrowing.

In addition, the instruments governing our indebtedness contain restrictive covenants that will limit our ability to engage in activities that may be in our long-term best interest. For example, our credit facility contains a financial covenant requiring us to not exceed a maximum total leverage ratio and covenants that, among other things, limit or restrict our and our subsidiaries' ability, subject to certain exceptions, to incur liens, merge, consolidate or sell, transfer or lease assets, transact with affiliates and incur priority indebtedness. Our failure to comply with such covenants could result in an event of default which, if not cured or waived, could result in the acceleration of all our debt.

We also have outstanding floating rate notes due 2021 (2021 floating rate notes) that have their interest rate calculated quarterly using three-month LIBOR. The U.K. Financial Conduct Authority (FCA), which regulates LIBOR, announced that the FCA will no longer persuade or compel banks to submit rates for the calculation of LIBOR after 2021, and it appears likely that LIBOR will be discontinued or modified by 2021. The discontinuance or modification of LIBOR, the introduction of alternative reference rates or other reforms to LIBOR could cause the interest rate calculated on our 2021 floating rate notes to be materially different than expected. In addition, if interest rates in general continue to rise, our interest expense related to the 2021 floating rate notes will increase.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table provides information with respect to the shares of the company’s common stock repurchased during the quarter ended

June 30, 2020:

	Issuer Purchases of Equity Securities
	Total Number of Shares Purchased(a)	Average Price Paid Per Share	Total Number of Shares Purchased as Part of Publicly Announced Programs(b)	Approximate Dollar Value of Shares that May Yet Be Purchased Under Plans or Programs
April 1 - April 30, 2020	1,177	$118.40	—	$1,424,104,390
May 1 - May 31, 2020	3,102	$128.43	—	$1,424,104,390
June 1 - June 30, 2020	3,700	$139.31	—	$1,424,104,390
	7,979	$131.99	—	$1,424,104,390

^(a)  The company repurchased 7,979 shares during the three-month period ended June 30, 2020, that were not part of the publicly announced share repurchase authorization. These shares were reacquired from employees to satisfy tax withholding requirements on the vesting of restricted shares from equity-based awards.

^(b)  The company temporarily suspended share repurchases beginning in the second quarter of 2020.

Item 3. Defaults Upon Senior Securities

None

Item 4. Mine Safety Disclosures

None

Item 5. Other Information

None

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Item 6. Exhibits

Exhibit 4.1	Fifth Supplemental Indenture, dated May 12, 2020, between the Company and Deutsche Bank Trust Company Americas, as Trustee (incorporated by reference to Exhibit 4.2 to Zoetis lnc.'s Current Report on Form 8-K filed on May 12, 2020 (File No. 001-35797))
Exhibit 4.2	Form of 2.000% Senior Notes due 2030 (incorporated by reference to Exhibit 4.2 to Zoetis lnc.'s Current Report on Form 8-K filed on May 12, 2020 (File No. 001-35797))
Exhibit 4.3	Form of 3.000% Senior Notes due 2050 (incorporated by reference to Exhibit 4.2 to Zoetis lnc.'s Current Report on Form 8-K filed on May 12, 2020 (File No. 001-35797))
Exhibit 15	Accountants' Acknowledgment
Exhibit 31.1	Chief Executive Officer–Certification pursuant to Sarbanes-Oxley Act of 2002 Section 302
Exhibit 31.2	Chief Financial Officer–Certification pursuant to Sarbanes-Oxley Act of 2002 Section 302
Exhibit 32.1	Chief Executive Officer–Certification pursuant to Sarbanes-Oxley Act of 2002 Section 906
Exhibit 32.2	Chief Financial Officer–Certification pursuant to Sarbanes-Oxley Act of 2002 Section 906
EX-101.INS	Inline XBRL INSTANCE DOCUMENT
EX-101.SCH	Inline XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
EX-101.CAL	Inline XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
EX-101.LAB	Inline XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
EX-101.PRE	Inline XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
EX-101.DEF	Inline XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
EX-104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Zoetis Inc.
August 6, 2020	By:	/S/ KRISTIN C. PECK
		Kristin C. Peck
		Chief Executive Officer and Director
August 6, 2020	By:	/S/ GLENN DAVID
		Glenn David
		Executive Vice President and
		Chief Financial Officer

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EX-15

Exhibit 15

ACCOUNTANTS’ ACKNOWLEDGEMENT

August 6, 2020

Zoetis Inc.

Parsippany, New Jersey

Re: Registration Statements (Nos. 333-186367, 333-189573, 333-200073, and 333-226481) on Form S-8 and (No. 333-226450) on Form S-3

With respect to the subject registration statements, we acknowledge our awareness of the use therein of our report dated August 6, 2020 related to our review of consolidated interim financial information.

Pursuant to Rule 436 under the Securities Act of 1933 (“the Act”), such report is not considered part of a registration statement prepared or certified by an independent registered public accounting firm, or a report prepared or certified by an independent registered public accounting firm within the meaning of Sections 7 and 11 of the Act.

/s/ KPMG LLP

Short Hills, New Jersey

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Kristin C. Peck, certify that:

1. I have reviewed this Quarterly Report of Zoetis Inc. on Form 10-Q for the period ending June 30, 2020 as filed with the Securities and Exchange Commission on the date hereof;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

August 6, 2020	By:	/s/ KRISTIN C. PECK
		Kristin C. Peck
		Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Glenn David, certify that:

1. I have reviewed this Quarterly Report of Zoetis Inc. on Form 10-Q for the period ending June 30, 2020 as filed with the Securities and Exchange Commission on the date hereof;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

August 6, 2020	By:	/s/ GLENN DAVID
		Glenn David
		Executive Vice President and
		Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. §1350, I, Kristin C. Peck, Chief Executive Officer, hereby certify that, to the best of my knowledge, the Quarterly Report on Form 10-Q of Zoetis Inc. for the period ended June 30, 2020 (the "Report") (1) fully complies with Section 13(a) or 15(d) of the Securities and Exchange Act of 1934; and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Zoetis Inc.

August 6, 2020	By:	/s/ KRISTIN C. PECK
		Kristin C. Peck
		Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. §1350, I, Glenn David, Executive Vice President and Chief Financial Officer, hereby certify that, to the best of my knowledge, the Quarterly Report on Form 10-Q of Zoetis Inc. for the period ended June 30, 2020 (the “Report”) (1) fully complies with Section 13(a) or 15(d) of the Securities and Exchange Act of 1934; and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Zoetis Inc.

August 6, 2020	By:	/s/ GLENN DAVID
		Glenn David
		Executive Vice President and
		Chief Financial Officer

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Cover [Abstract]
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-35797
Entity Registrant Name	Zoetis Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-0696167
Entity Address, Address Line One	10 Sylvan Way,
Entity Address, City or Town	Parsippany,
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07054
City Area Code	973
Local Phone Number	822-7000
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	ZTS
Security Exchange Name	NYSE
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 Shell Company	false
Entity common Stock, Shares Outstanding		475,144,704
Document Type	10-Q
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001555280
Current Fiscal Year End Date	--12-31

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Income Statement [Abstract]
Revenue	$ 1,548	$ 1,547	$ 3,082		$ 3,002
Costs and expenses:
Cost of sales	451	465	910		983
Selling, general and administrative expenses	393	406	782		775
Research and development expenses	111	111	218		213
Amortization of intangible assets	40	39	80		77
Restructuring charges and certain acquisition-related costs	8	22	17		27
Interest expense, net of capitalized interest	58	55	111		111
Other (income)/deductions—net	5	(6)	(15)		(20)
Income before provision for taxes on income	482	455	979	[1]	836	[1]
Provision for taxes on income	106	84	180		153
Net income before allocation to noncontrolling interests	376	371	799		683
Less: Net loss attributable to noncontrolling interests	(1)	0	(1)		0
Net income attributable to Zoetis Inc.	$ 377	$ 371	$ 800		$ 683
Earnings per share attributable to Zoetis Inc. stockholders:
Basic (in dollars per share)	$ 0.79	$ 0.77	$ 1.68		$ 1.43
Diluted (in dollars per share)	$ 0.79	$ 0.77	$ 1.67		$ 1.41
Weighted-average common shares outstanding:
Basic (in shares)	475.3	478.8	475.4		479.2
Diluted (in shares)	478.1	482.3	478.6		482.7
Dividends paid per common share (in dollars per share)	$ 0.200	$ 0.164	$ 0.400		$ 0.328

[1] Defined as income before provision for taxes on income.

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income before allocation to noncontrolling interests	$ 376	$ 371	$ 799	$ 683
Other comprehensive loss, net of taxes:
Unrealized (losses)/gains on derivatives for cash flow hedges, net	(4)	1
Unrealized (losses)/gains on derivatives for net investment hedges, net	(14)	(4)	(32)	1
Foreign currency translation adjustments, net	(57)	(68)	(101)	(45)
Total other comprehensive loss, net of tax	(75)	(71)	(130)	(40)
Comprehensive income before allocation to noncontrolling interests	301	300	669	643
Less: Comprehensive loss attributable to noncontrolling interests	(1)	0	(1)	0
Comprehensive income attributable to Zoetis Inc.	$ 302	$ 300	670	643
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax			$ 3	$ 4

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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	[1]	$ 3,353	$ 1,934
Restricted cash		0	2
Accounts receivable, less allowance for doubtful accounts of $20 in 2020 and $21 in 2019		984	1,086
Inventories		1,584	1,410
Other current assets		364	318
Total current assets		6,285	4,748
Property, plant and equipment, less accumulated depreciation of $1,818 in 2020 and $1,737 in 2019		2,011	1,940
Operating lease right of use assets		181	189
Goodwill		2,629	2,592
Identifiable intangible assets, less accumulated amortization		1,783	1,890
Noncurrent deferred tax assets		88	88
Other noncurrent assets		92	98
Total assets		13,069	11,545
Liabilities and Equity
Short-term borrowings		1	0
Current portion of long-term debt		500	500
Accounts payable		335	301
Dividends payable		95	95
Accrued expenses		475	543
Accrued compensation and related items		170	276
Income taxes payable		170	36
Other current liabilities		65	55
Total current liabilities		1,811	1,806
Long-term debt, net of discount and issuance costs		7,194	5,947
Noncurrent deferred tax liabilities		395	434
Operating lease liabilities		155	164
Other taxes payable		256	257
Other noncurrent liabilities		271	229
Total liabilities		10,082	8,837
Commitments and Contingencies
Stockholders' equity:
Common stock, $0.01 par value: 6,000,000,000 authorized; 501,891,243 and 501,891,243 shares issued; 474,999,478 and 475,528,210 shares outstanding at June 30, 2020, and December 31, 2019, respectively		5	5
Treasury stock, at cost, 26,891,765 and 26,363,033 shares of common stock at June 30, 2020, and December 31, 2019, respectively		(2,245)	(2,042)
Additional paid-in capital		1,030	1,044
Retained earnings		5,048	4,427
Accumulated other comprehensive loss		(856)	(726)
Total Zoetis Inc. equity		2,982	2,708
Equity attributable to noncontrolling interests		5	0
Total equity		2,987	2,708
Total liabilities and equity		$ 13,069	$ 11,545

[1] As of June 30, 2020, and December 31, 2019, includes $0 million and $2 million, respectively, of restricted cash.

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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (PARENTHETICAL) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 20	$ 21
Accumulated depreciation	$ 1,818	$ 1,737
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000,000	1,000,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	6,000,000,000	6,000,000,000
Common stock issued, shares	501,891,243	501,891,243
Common stock, shares outstanding	474,999,478	475,582,210
Treasury stock, shares	26,891,765	26,363,033

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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) - USD ($) $ in Millions		Total		Common Stock	Treasury Stock		Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Equity Attributable to Noncontrolling Interests	Share Repurchase Program	[2]	Share Repurchase Program Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock, shares	[1]	22,300,000
Common Stock, Shares, Issued		501,900,000
Total equity		$ 2,185		$ 5	$ (1,487)		$ 1,026	$ 3,270	$ (629)	$ 0
Treasury Stock, Shares	[1]	22,300,000
Beginning balance at Dec. 31, 2018		$ 2,185		5	(1,487)		1,026	3,270	(629)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		683						683		0
Other comprehensive loss		(40)							(40)
Share-based compensation awards	[2]	$ 39			55		(8)	(8)
Treasury stock acquired, shares	[1]	(3,100,000)	[3]								(1,400,000)
Treasury stock acquired	[3]	$ (300)			(300)	[2]
Employee benefit plan contribution from Pfizer Inc.	[4]	1					1
Dividends declared		(157)						(157)
Ending balance at Jun. 30, 2019		2,411		5	(1,732)		1,019	3,788	(669)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total equity		2,411		5	(1,487)		1,026	3,270	(669)	0
Net income		683						683		0
Other comprehensive (loss)/income, net of tax		$ (40)							(40)
Treasury Stock, Shares, Acquired	[1]	3,100,000	[3]								1,400,000
Share-based compensation awards	[2]	$ 39			55		(8)	(8)
Treasury Stock, Value, Acquired, Cost Method	[3]	300			$ 300	[2]
Dividends, Common Stock		$ 157						157
Treasury stock, shares					22,900,000
Common Stock, Shares, Issued		501,900,000
Total equity		$ 2,317		5	$ (1,593)		1,008	3,495	(598)	0
Treasury Stock, Shares					22,900,000
Beginning balance at Mar. 31, 2019		2,317		5	$ (1,593)		1,008	3,495	(598)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		371						371
Other comprehensive loss		(71)							(71)
Share-based compensation awards		22			$ 11		11
Treasury stock acquired, shares					(1,400,000)								(200,000)
Treasury stock acquired		(150)			$ (150)
Dividends declared		(78)						(78)
Ending balance at Jun. 30, 2019		2,411		5	(1,732)		1,019	3,788	(669)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total equity		2,411		5	$ (1,732)		1,019	3,788	(669)	0
Net income		371						371
Other comprehensive (loss)/income, net of tax		(71)							(71)
Treasury Stock, Shares, Acquired					1,400,000								200,000
Share-based compensation awards		22			$ 11		11
Treasury Stock, Value, Acquired, Cost Method		150			150
Dividends, Common Stock		$ 78						78
Treasury stock, shares	[1]	24,100,000
Common Stock, Shares, Issued		501,900,000
Total equity		$ 2,411		5	$ (1,732)		1,019	3,788	(669)	0
Treasury Stock, Shares	[1]	24,100,000
Treasury stock, shares		26,363,033			26,400,000	[1]
Common Stock, Shares, Issued		501,891,243
Total equity		$ 2,708		5	$ (2,042)		1,044	4,427	(726)	0
Treasury Stock, Shares		26,363,033			26,400,000	[1]
Beginning balance at Dec. 31, 2019		$ 2,708		5	$ (2,042)		1,044	4,427	(726)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		799						800		(1)
Other comprehensive loss		(130)							(130)	0
Share-based compensation awards	[2]	43			$ 47		(15)	11
Treasury stock acquired, shares	[1]				(1,800,000)	[3]							(1,300,000)	[2]
Treasury stock acquired	[3]	(250)			$ (250)
Employee benefit plan contribution from Pfizer Inc.	[4]	1					1
Dividends declared		(190)						(190)
Ending balance at Jun. 30, 2020		2,987		5	(2,245)		1,030	5,048	(856)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total equity		2,708		5	$ (2,245)		1,044	4,427	(726)	5
Net income		799						800		(1)
Other comprehensive (loss)/income, net of tax		(130)							(130)	0
Treasury Stock, Shares, Acquired	[1]				1,800,000	[3]							1,300,000	[2]
Share-based compensation awards	[2]	43			$ 47		(15)	11
Treasury Stock, Value, Acquired, Cost Method	[3]	250			$ 250
Dividends, Common Stock		$ 190						190
Treasury stock, shares					27,000,000.0
Common Stock, Shares, Issued		501,900,000
Total equity		$ 2,753		5	$ (2,252)		1,017	4,764	(781)	0
Treasury Stock, Shares					27,000,000.0
Beginning balance at Mar. 31, 2020		2,753		5	$ (2,252)		1,017	4,764	(781)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		376						377		(1)
Other comprehensive loss		(75)							(75)
Consolidation of noncontrolling interests		6								6
Share-based compensation awards		22					13	2
Treasury stock acquired, shares													(100,000)
Dividends declared		(95)						(95)
Ending balance at Jun. 30, 2020		2,987		5	(2,245)		1,030	5,048	(856)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total equity		2,753		5	$ (2,245)		1,030	5,048	(856)	5
Net income		376						377		(1)
Other comprehensive (loss)/income, net of tax		(75)							(75)
Treasury Stock, Shares, Acquired													100,000
Share-based compensation awards		22					13	2
Dividends, Common Stock		$ 95						95
Treasury stock, shares		26,891,765			26,900,000	[1]
Common Stock, Shares, Issued		501,891,243
Total equity		$ 2,987		$ 5	$ (2,245)		$ 1,030	$ 5,048	$ (856)	$ 5
Treasury Stock, Shares		26,891,765			26,900,000	[1]

[1] Shares may not add due to rounding.

[2] Includes the issuance of shares of Zoetis Inc. common stock and the reacquisition of shares of treasury stock associated with exercises of employee share-based awards. Also includes the reacquisition of shares of treasury stock associated with the vesting of employee share-based awards to satisfy tax withholding requirements. For additional information, see Note 12. Share-based Payments and Note 13. Stockholders' Equity.

[3] Reflects the acquisition of treasury shares in connection with the share repurchase program. For additional information see Note 13. Stockholders' Equity.

[4] Represents contributed capital from Pfizer Inc. associated with service credit continuation for certain Zoetis Inc. employees in Pfizer Inc.'s U.S. qualified defined benefit and U.S. retiree medical plans.

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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) (PARENTHETICAL) - shares	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	[1]	Dec. 31, 2018	[1]
Statement of Stockholders' Equity [Abstract]
Common stock, shares outstanding	474,999,478	475,582,210
Treasury stock, shares	26,891,765	26,363,033	24,100,000		22,300,000

[1] Shares may not add due to rounding.

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Operating Activities
Net income before allocation to noncontrolling interests	$ 799	$ 683
Adjustments to reconcile net income before noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization expense	221	196	[1],[2]
Share-based compensation expense	32	35
Asset write-offs and asset impairments	9	1
Net gain on sale of assets	18	0
Provision for losses on inventory	32	29
Deferred taxes	(38)	(22)
Employee benefit plan contribution from Pfizer Inc.	1	1
Loss on treasury locks	(6)	0
Other non-cash adjustments	2	0
Other changes in assets and liabilities, net of acquisitions and divestitures:
Accounts receivable	71	29
Inventories	(233)	(50)
Other assets	(42)	(35)
Accounts payable	37	(22)
Other liabilities	(156)	(119)
Other tax accounts, net	135	(19)
Net cash provided by operating activities	846	707
Investing Activities
Capital expenditures	(184)	(166)
Other acquisitions	(78)	0
Proceeds from maturities and redemptions of investments	0	76
Net proceeds on swaps designated as net investment hedges	20	0
Net proceeds from sale of assets	23	0
Other investing activities	(2)	8
Net cash used in investing activities	(221)	(82)
Financing Activities
Increase/(decrease) in short-term borrowings, net	1	(9)
Payment of contingent consideration related to previously acquired assets	0	(8)
Acquisition of a noncontrolling interest, net of cash acquired	(3)	0
Proceeds from issuance of long-term debt—senior notes, net of discount	1,240	0
Share-based compensation-related proceeds, net of taxes paid on withholding shares	21	5
Purchases of treasury stock	(250)	(300)
Cash dividends paid	(190)	(157)
Payment of debt issuance costs	(12)	0
Net cash provided by/(used in) financing activities	813	(469)
Effect of exchange-rate changes on cash and cash equivalents	(19)	(3)
Net increase in cash and cash equivalents	1,419	153
Cash and cash equivalents at beginning of period	1,934	1,602
Cash and cash equivalents at end of period	3,353	1,755
Cash paid during the period for:
Income taxes	91	212
Interest, net of capitalized interest	123	123
Amounts included in the measurement of lease liabilities	20	19
Non-cash transactions:
Capital expenditures	5	9
Lease obligations obtained in exchange for right-of-use assets	13	$ 223
Dividends declared, not paid	$ 95

[1] Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

[2] Defined as income before provision for taxes on income.

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Organization

6 Months Ended

Jun. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization

1. Organization

Zoetis Inc. (including its subsidiaries, collectively, Zoetis, the company, we, us or our) is a global leader in the discovery, development, manufacture and commercialization of animal health medicines, vaccines and diagnostic products with a focus on both livestock and companion animals. We organize and operate our business in two geographic regions: the United States (U.S.) and International.

We directly market our products in approximately 45 countries across North America, Europe, Africa, Asia, Australia and South America. Our products are sold in more than 100 countries, including developed markets and emerging markets. We have a diversified business, marketing products across eight core species: cattle, swine, poultry, fish and sheep (collectively, livestock) and dogs, cats and horses (collectively, companion animals); and within seven major product categories: vaccines, parasiticides, anti-infectives, dermatology, other pharmaceuticals, medicated feed additives and animal health diagnostics.

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Basis of Presentation

6 Months Ended

Jun. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

2. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements were prepared following the requirements of the Securities and Exchange Commission (SEC) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America (U.S. GAAP) can be condensed or omitted. Balance sheet amounts and operating results for subsidiaries operating outside the U.S. are as of and for the six-month periods ended May 31, 2020 and May 31, 2019.

Revenue, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be representative of those for the full year.

Certain reclassifications of prior year information have been made to conform to the current year's presentation.

We are responsible for the unaudited condensed consolidated financial statements included in this Form 10-Q. The condensed consolidated financial statements include all normal and recurring adjustments that are considered necessary for the fair presentation of our financial position and operating results. The information included in this interim report should be read in conjunction with the financial statements and accompanying notes included in our 2019 Annual Report on Form 10-K.

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Accounting Standards

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Accounting Standards

3. Accounting Standards

Recently Adopted Accounting Standards

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Topic 350-40), an accounting standards update which expands the scope of costs associated with cloud computing arrangements that must be capitalized. Under the new guidance, costs associated with implementing a cloud computing arrangement that is a service contract must be capitalized and expensed over the term of the hosting arrangement. We adopted this guidance as of January 1, 2020, the required effective date, on a prospective basis. The adoption did not have a significant impact on our consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments (Topic 326), an accounting standards update which requires an entity to measure and recognize expected credit losses for certain financial instruments, including trade receivables, as an allowance that reflects the entity's current estimate of credit losses expected to be incurred. For available-for-sale debt securities with unrealized losses, the standard requires allowances to be recorded instead of reducing the amortized cost of the investment. We adopted this guidance as of January 1, 2020, the required effective date, on a prospective basis. The adoption did not have a significant impact on our consolidated financial statements.

Recently Issued Accounting Standards

In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The new guidance provides temporary optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate (LIBOR) or another reference rate expected to be discontinued because of reference rate reform. Adoption of the provisions of ASU 2020-04 is optional and effective as of March 12, 2020, but is only available through December 31, 2022. We are currently evaluating the impact that the new guidance will have on our consolidated financial statements and related disclosures, as well as the timing of the potential adoption.

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Revenue

6 Months Ended

Jun. 30, 2020

Revenue Recognition and Deferred Revenue [Abstract]

Revenue

4. Revenue

A. Revenue from Product Sales

We offer a diversified portfolio of products which allows us to capitalize on local and regional customer needs. Generally, our products are promoted to veterinarians and livestock producers by our sales organization which includes sales representatives and technical and veterinary operations specialists, and then sold directly by us or through distributors, retailers and e-commerce outlets. The depth of our product portfolio enables us to address the varying needs of customers in different species and geographies. Many of our top selling product lines are distributed

across both of our operating segments, leveraging our research and development (R&D) operations and manufacturing and supply chain network.

Over the course of our history, we have focused on developing a diverse portfolio of animal health products, including medicines, vaccines and diagnostics, complemented by biodevices, genetic tests and a range of services. We refer to a single product in all brands, or its dosage forms for all species, as a product line. We have approximately 300 comprehensive product lines, including products for both livestock and companion animals across each of our major product categories.

In the fourth quarter of 2019, the company modified the list of major product categories to include a category for dermatology products, which was previously included within other pharmaceutical products. The prior period presentation has been revised to reflect the new product categories.

Our major product categories are:

•vaccines: biological preparations that help prevent diseases of the respiratory, gastrointestinal and reproductive tracts or induce a specific immune response;

•parasiticides: products that prevent or eliminate external and internal parasites such as fleas, ticks and worms;

•anti-infectives: products that prevent, kill or slow the growth of bacteria, fungi or protozoa;

•dermatology products: products that relieve itch associated with allergic conditions and atopic dermatitis;

•other pharmaceutical products: pain and sedation, antiemetic, reproductive, and oncology products;

•medicated feed additives: products added to animal feed that provide medicines to livestock; and

•animal health diagnostics: portable blood and urine analysis systems and point-of-care diagnostic products, including instruments and reagents, rapid immunoassay tests, reference laboratory kits and blood glucose monitors.

Our remaining revenue is derived from other non-pharmaceutical product categories, such as nutritionals and agribusiness, as well as products and services in smaller but fast growing areas, including biodevices, genetic tests and precision livestock farming.

Our livestock products primarily help prevent or treat diseases and conditions to enable the cost-effective production of safe, high-quality animal protein. Human population growth and increasing standards of living are important long-term growth drivers for our livestock products in three major ways. First, population growth and increasing standards of living drive increased demand for improved nutrition, particularly animal protein. Second, population growth leads to increased natural resource constraints driving a need for enhanced productivity. Finally, as standards of living improve, there is increased focus on food quality and safety.

Our companion animal products help extend and improve the quality of life for pets; increase convenience and compliance for pet owners; and help veterinarians improve the quality of their care and the efficiency of their businesses. Growth in the companion animal medicines, vaccines and diagnostics sector is driven by economic development, related increases in disposable income and increases in pet ownership and spending on pet care. Companion animals are also living longer, receiving increased medical treatment and benefiting from advances in animal health medicines and vaccines.

The following tables present our revenue disaggregated by geographic area, species, and major product category:

Revenue by geographic area

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
United States	$	823	$	780	$	1,609	$	1,498
Australia	51		49		94		97
Brazil	56		74		119		134
Canada	54		54		94		95
Chile	25		22		48		42
China	66		56		132		116
France	24		27		53		59
Germany	40		39		74		76
Italy	14		28		35		56
Japan	53		41		94		78
Mexico	26		30		58		58
Spain	24		30		52		57
United Kingdom	26		42		81		99
Other developed markets	90		88		177		172
Other emerging markets	159		162		325		321
	1,531		1,522		3,045		2,958
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

Revenue by major species

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
U.S.
Companion animal	$	594	$	500	$	1,093	$	945
Livestock	229		280		516		553
	823		780		1,609		1,498
International
Companion animal	288		298		586		582
Livestock	420		444		850		878
	708		742		1,436		1,460
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

Revenue by species

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Companion Animal:
Dogs and Cats	$	831	$	754	$	1,577	$	1,442
Horses	51		44		102		85
	882		798		1,679		1,527
Livestock:
Cattle	320		379		690		759
Swine	146		158		303		307
Poultry	135		143		283		282
Fish	30		25		56		48
Sheep and other	18		19		34		35
	649		724		1,366		1,431
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

Revenue by major product category

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Vaccines	$	336	$	370	$	685	$	728
Parasiticides	307		266		562		497
Anti-infectives	241		293		521		579
Dermatology	227		185		424		344
Other pharmaceuticals	192		187		389		377
Medicated feed additives	109		115		234		227
Animal health diagnostics	69		65		129		125
Other non-pharmaceuticals	50		41		101		81
	1,531		1,522		3,045		2,958
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

B. Revenue from Contracts with Customers

Contract liabilities reflected within Other current liabilities as of December 31, 2019 and December 31, 2018, and subsequently recognized as revenue during the first six months of 2020 and 2019 were approximately $5 million and $4 million, respectively. Contract liabilities as of June 30, 2020 and December 31, 2019 were approximately $10 million and $11 million, respectively.

Estimated future revenue expected to be generated from long-term contracts with unsatisfied performance obligations as of June 30, 2020 is not material.

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Acquisitions and Divestitures

6 Months Ended

Jun. 30, 2020

Business Combinations [Abstract]

Acquisitions and Divestitures

5. Acquisitions and Divestitures

A. Acquisitions

Other Acquisitions

In the second quarter of 2020, we completed the acquisition of Performance Livestock Analytics, a cloud-based technology company in the precision livestock business. We also entered into an option purchase agreement as part of a research and development arrangement with a Belgian company, a variable interest entity of which Zoetis is the primary beneficiary and now consolidating within our results. In the first quarter of 2020, we completed the acquisition of Ethos Diagnostic Science, a veterinary reference laboratory business with labs across the U.S. These transactions did not have a significant impact on our consolidated financial statements.

During 2019, we completed the acquisitions of Platinum Performance, a nutrition-focused animal health business for companion animals and Phoenix Lab and ZNLabs, both full service veterinary reference laboratory companies with networks of labs across the U.S. These transactions did not have a significant impact on our consolidated financial statements.

B. Divestitures

During the six months ended June 30, 2020, we received cash proceeds of $20 million resulting from a payment received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites.

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Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives

6 Months Ended

Jun. 30, 2020

Restructuring and Related Activities [Abstract]

Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives

6. Restructuring Charges and Other Costs Associated with Acquisitions, Cost-Reduction and Productivity Initiatives

In connection with our cost-reduction/productivity initiatives, we typically incur costs and charges associated with site closings and other facility rationalization actions, workforce reductions and the expansion of shared services, including the development of global systems. In connection with our acquisition activity, we typically incur costs and charges associated with executing the transactions, integrating the acquired operations, which may include expenditures for consulting and the integration of systems and processes, product transfers and restructuring the consolidated company, which may include charges related to employees, assets and activities that will not continue in the consolidated company. All operating functions can be impacted by these actions, including sales and marketing, manufacturing and R&D, as well as functions such as information technology, shared services and corporate operations.

The components of costs incurred in connection with restructuring initiatives, acquisitions and cost-reduction/productivity initiatives are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Restructuring charges and certain acquisition-related costs:
Integration costs(a)	$	6	$	8	$	12	$	9
Restructuring charges(b):
Employee termination costs	2		14		5		18
Total Restructuring charges and certain acquisition-related costs	$	8	$	22	$	17	$	27

^(a) Integration costs represent external, incremental costs directly related to integrating acquired businesses and primarily include expenditures for consulting and the integration of systems and processes, as well as product transfer costs.

^(b) The restructuring charges for the three and six months ended June 30, 2020 primarily relate to CEO transition-related costs which are associated with Manufacturing/research/corporate.

The restructuring charges for the three and six months ended June 30, 2019 primarily relate to the acquisition of Abaxis which are associated with Manufacturing/research/corporate.

(MILLIONS OF DOLLARS)	Accrual(a)
Balance, December 31, 2019(b)	$	45
Provision	5
Utilization and other(c)	(12)
Balance, June 30, 2020(b)	$	38

^(a)  Changes in our restructuring accrual represents employee termination costs.

^(b) At June 30, 2020, and December 31, 2019, included in Accrued expenses ($15 million and $23 million, respectively) and Other noncurrent liabilities ($23 million and $22 million, respectively).

(c)  Includes adjustments for foreign currency translation.

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Other (Income)/Deductions - Net

6 Months Ended

Jun. 30, 2020

Other Income and Expenses [Abstract]

Other (Income)/Deductions - Net

7. Other (Income)/Deductions—Net

The components of Other (income)/deductions—net are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Royalty-related income	$	(5)	$	(3)	$	(6)	$	(8)
Interest income	(2)		(9)		(8)		(19)
Identifiable intangible asset impairment charges	3		—		3		—
Net gain on sale of assets(a)	(1)		—		(18)		—
Foreign currency loss(b)	6		7		11		7
Impairment of an equity investment	4		—		4		—
Other, net	—		(1)		(1)		—
Other (income)/deductions—net	$	5	$	(6)	$	(15)	$	(20)

^(a) For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites. 

^(b) Primarily driven by costs related to hedging and exposures to certain emerging and developed market currencies.

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Income Taxes

6 Months Ended

Jun. 30, 2020

Income Tax Disclosure [Abstract]

Income Taxes

8. Income Taxes

A. Taxes on Income

Our effective tax rate was 22.0% for the three months ended June 30, 2020, compared with 18.5% for the three months ended June 30, 2019. The higher effective tax rate for the three months ended June 30, 2020, was primarily attributable to:

•changes in the jurisdictional mix of earnings, which includes the impact of the location of earnings from operations and repatriation costs. The jurisdictional mix of earnings can vary as a result of repatriation decisions and operating fluctuations in the normal course of business and the impact of non-deductible items;

•an $8 million net discrete tax benefit recorded in the three months ended June 30, 2019, primarily related to the effective settlement of certain issues with non-U.S. tax authorities; and

•a $1 million and $2 million discrete tax benefit recorded in the three months ended June 30, 2020 and 2019, respectively, related to the excess tax benefits for share-based payments,

partially offset by:

•a $1 million discrete tax benefit recorded in the three months ended June 30, 2020 related to a remeasurement of deferred taxes resulting from the integration of acquired businesses; and

•a $1 million discrete tax benefit recorded in the three months ended June 30, 2020 related to a remeasurement of deferred taxes as a result of changes in non-U.S. statutory tax rates.

Our effective tax rate was 18.4% for the six months ended June 30, 2020, compared with 18.3% for the six months ended June 30, 2019. The higher effective tax rate for the six months ended June 30, 2020, was primarily attributable to:

•changes in the jurisdictional mix of earnings, which includes the impact of the location of earnings from operations and repatriation costs. The jurisdictional mix of earnings can vary as a result of repatriation decisions and operating fluctuations in the normal course of business and the impact of non-deductible items; and

•a $16 million net discrete tax benefit recorded in the six months ended June 30, 2019, primarily related to the effective settlement of certain issues with non-U.S. tax authorities and a prior period tax adjustment,

partially offset by:

•a $24 million and $15 million discrete tax benefit recorded in the six months ended June 30, 2020 and 2019, respectively, related to the excess tax benefits for share-based payments; and

•a $7 million discrete tax benefit recorded in the six months ended June 30, 2020 related to a remeasurement of deferred taxes resulting from the integration of acquired businesses.

B. Deferred Taxes

As of June 30, 2020, the total net deferred income tax liability of $307 million is included in Noncurrent deferred tax assets ($88 million) and Noncurrent deferred tax liabilities ($395 million).

As of December 31, 2019, the total net deferred income tax liability of $346 million is included in Noncurrent deferred tax assets ($88 million) and Noncurrent deferred tax liabilities ($434 million).

C. Tax Contingencies

As of June 30, 2020, the net tax liabilities associated with uncertain tax positions of $186 million (exclusive of interest and penalties related to uncertain tax positions of $13 million) are included in Noncurrent deferred tax assets and Other noncurrent assets ($2 million) and Other taxes payable ($184 million).

As of December 31, 2019, the net tax liabilities associated with uncertain tax positions of $182 million (exclusive of interest and penalties related to uncertain tax positions of $12 million) are included in Noncurrent deferred tax assets and Other noncurrent assets ($2 million) and Other taxes payable ($180 million).

Our tax liabilities for uncertain tax positions relate primarily to issues common among multinational corporations. Any settlements or statute of limitations expirations could result in a significant decrease in our uncertain tax positions. Substantially all of these unrecognized tax benefits, if recognized, would impact our effective income tax rate. We do not expect that within the next twelve months any of our uncertain tax positions could significantly decrease as a result of settlements with taxing authorities or the expiration of the statutes of limitations. Our assessments are based on estimates and assumptions that have been deemed reasonable by management, but our estimates of uncertain tax positions and potential tax benefits may not be representative of actual outcomes, and any variation from such estimates could materially affect our financial statements in the period of settlement or when the statutes of limitations expire, as we treat these events as discrete items in the period of resolution. Finalizing audits with the relevant taxing authorities can include formal administrative and legal proceedings, and, as a result, it is difficult to estimate the timing and range of possible changes related to our uncertain tax positions, and such changes could be significant.

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Financial Instruments

6 Months Ended

Jun. 30, 2020

Financial Instruments [Abstract]

Financial Instruments

9. Financial Instruments

A. Debt

Credit Facilities

In December 2016, we entered into an amended and restated revolving credit agreement with a syndicate of banks providing for a multi-year $1.0 billion senior unsecured revolving credit facility (the credit facility). In December 2018, the maturity for the amended and restated revolving credit agreement was extended through December 2023. Subject to certain conditions, we have the right to increase the credit facility to up to $1.5 billion. The credit facility contains a financial covenant requiring us to not exceed a maximum total leverage ratio (the ratio of consolidated net debt as of the end of the period to consolidated Earnings Before Interest, Income Taxes, Depreciation and Amortization (EBITDA) for such period) of 3.50:1. Upon entering into a material acquisition, the maximum total leverage ratio increases to 4.00:1, and extends until the fourth full consecutive fiscal quarter ended immediately following the consummation of a material acquisition.

The credit facility also contains a financial covenant requiring that we maintain a minimum interest coverage ratio (the ratio of EBITDA at the end of the period to interest expense for such period) of 3.50:1. In addition, the credit facility contains other customary covenants.

We were in compliance with all financial covenants as of June 30, 2020, and December 31, 2019. There were no amounts drawn under the credit facility as of June 30, 2020 or December 31, 2019.

We have additional lines of credit and other credit arrangements with a group of banks and other financial intermediaries for general corporate purposes. We maintain cash and cash equivalent balances in excess of our outstanding short-term borrowings. As of June 30, 2020, we had access to $75 million of lines of credit which expire at various times through 2020 and are generally renewed annually. There were $1.5 million of borrowings outstanding related to these facilities as of June 30, 2020 and no borrowings outstanding as of December 31, 2019.

Commercial Paper Program

In February 2013, we entered into a commercial paper program with a capacity of up to $1.0 billion. As of June 30, 2020 and December 31, 2019, there was no commercial paper outstanding under this program.

Senior Notes and Other Long-Term Debt

On May 12, 2020, we issued $1.25 billion aggregate principal amount of our senior notes (2020 senior notes), with an original issue discount of $10 million. These notes are comprised of $750 million aggregate principal amount of 2.000% senior notes due 2030 and $500 million aggregate principal amount of 3.000% senior notes due 2050. The net proceeds will be used to repay the principal of our 3.450% senior notes due 2020 in the aggregate principal amount of $500 million and for general corporate purposes.

On August 20, 2018, we issued $1.5 billion aggregate principal amount of our senior notes (2018 senior notes), with an original issue discount of $4 million. On September 12, 2017, we issued $1.25 billion aggregate principal amount of our senior notes (2017 senior notes), with an original issue discount of $7 million. On November 13, 2015, we issued $1.25 billion aggregate principal amount of our senior notes (2015 senior notes), with an original issue discount of $2 million. On January 28, 2013, we issued $3.65 billion aggregate principal amount of our senior notes (2013 senior notes) in a private placement, with an original issue discount of $10 million.

The 2013, 2015, 2017, 2018 and 2020 senior notes are governed by an indenture and supplemental indenture (collectively, the indenture) between us and Deutsche Bank Trust Company Americas, as trustee. The indenture contains certain covenants, including limitations on our and certain of our subsidiaries' ability to incur liens or engage in sale-leaseback transactions. The indenture also contains restrictions on our ability to consolidate, merge or sell substantially all of our assets. In addition, the indenture contains other customary terms, including certain events of default, upon the occurrence of which the 2013, 2015, 2017, 2018 and 2020 senior notes may be declared immediately due and payable.

Pursuant to the indenture, we are able to redeem the 2013, 2015, 2017 and 2020 senior notes and the 2018 fixed rate senior notes or any series, in whole or in part, at any time by paying a “make whole” premium, plus accrued and unpaid interest to, but excluding, the date of redemption. The 2018 floating rate senior notes are not redeemable at our option prior to their maturity date. Pursuant to our tax matters agreement with Pfizer, we will not be permitted to redeem the 2013 senior notes due 2023 pursuant to this optional redemption provision, except under limited circumstances. Upon the occurrence of a change of control of us and a downgrade of the 2013, 2015, 2017, 2018 and 2020 senior notes below an investment grade rating by each of Moody's Investors Service, Inc. and Standard & Poor's Ratings Services, we are, in certain circumstances, required to make an offer to repurchase all of the outstanding 2013, 2015, 2017, 2018 and 2020 senior notes at a price equal to 101% of the aggregate principal amount of the 2013, 2015, 2017, 2018 and 2020 senior notes together with accrued and unpaid interest to, but excluding, the date of repurchase.

The components of our long-term debt are as follows:

	June 30,		December 31,
(MILLIONS OF DOLLARS)	2020		2019
3.450% 2015 senior notes due 2020	$	500	$	500
2018 floating rate (three-month USD LIBOR plus 0.44%) senior notes due 2021	300		300
3.250% 2018 senior notes due 2021	300		300
3.250% 2013 senior notes due 2023	1,350		1,350
4.500% 2015 senior notes due 2025	750		750
3.000% 2017 senior notes due 2027	750		750
3.900% 2018 senior notes due 2028	500		500
2.000% 2020 senior notes due 2030	750		—
4.700% 2013 senior notes due 2043	1,150		1,150
3.950% 2017 senior notes due 2047	500		500
4.450% 2018 senior notes due 2048	400		400
3.000% 2020 senior notes due 2050	500		—
	7,750		6,500
Unamortized debt discount / debt issuance costs	(70)		(51)
Less current portion of long-term debt	500		500
Cumulative fair value adjustment for interest rate swap contracts	14		(2)
Long-term debt, net of discount and issuance costs	$	7,194	$	5,947

The fair value of our long-term debt was $8,326 million and $6,587 million as of June 30, 2020, and December 31, 2019, respectively, and has been determined using a third-party matrix-pricing model that uses significant inputs derived from, or corroborated by, observable market data and Zoetis’ credit rating (Level 2 inputs).

The principal amount of long-term debt outstanding, as of June 30, 2020, matures in the following years:

											After
(MILLIONS OF DOLLARS)	2020		2021		2022		2023		2024		2024		Total
Maturities	$	500	$	600	$	—	$	1,350	$	—	$	5,300	$	7,750

Interest Expense

Interest expense, net of capitalized interest, was $58 million and $111 million for the three and six months ended June 30, 2020, respectively, and $55 million and $111 million for the three and six months ended June 30, 2019, respectively. Capitalized interest expense was $4 million and $8 million for the three and six months ended June 30, 2020, respectively, and $3 million and $6 million for the three and six months ended June 30, 2019, respectively.

B. Derivative Financial Instruments

Foreign Exchange Risk

A significant portion of our revenue, earnings and net investment in foreign affiliates is exposed to changes in foreign exchange rates. We seek to manage our foreign exchange risk, in part, through operational means, including managing same-currency revenue in relation to same-currency costs and same-currency assets in relation to same-currency liabilities. Depending on market conditions, foreign exchange risk is also managed through the use of various derivative financial instruments. These derivative financial instruments serve to manage the exposure of our net investment in certain foreign operations to changes in foreign exchange rates and protect net income against the impact of translation into U.S. dollars of certain foreign exchange-denominated transactions.

All derivative financial instruments used to manage foreign currency risk are measured at fair value and are reported as assets or liabilities on the condensed consolidated balance sheet. The derivative financial instruments primarily offset exposures in the Australian dollar, British pound, Canadian dollar, Chinese yuan, euro, and Japanese yen. Changes in fair value are reported in earnings or in Accumulated other comprehensive income/(loss), depending on the nature and purpose of the financial instrument, as follows:

•For foreign exchange contracts not designated as hedging instruments, we recognize the gains and losses on forward-exchange contracts that are used to offset the same foreign currency assets or liabilities immediately into earnings along with the earnings impact of the items they generally offset. These contracts essentially take the opposite currency position of that reflected in the month-end balance sheet to counterbalance the effect of any currency movement. The vast majority of the foreign exchange derivative financial instruments mature within 60 days and all mature within three years.

•For cross-currency interest rate swaps, which are designated as a hedge against our net investment in foreign operations, changes in the fair value are recorded as a component of cumulative translation adjustment within Accumulated other comprehensive income/(loss) and reclassified into earnings when the foreign investment is sold or substantially liquidated. Gains and losses excluded from the assessment of hedge effectiveness are recognized in earnings (Interest expense—net of capitalized interest). The cash flows from these contracts are reflected within the investing section of our Condensed Consolidated Statement of Cash Flows. The cross-currency interest rate swap contracts have varying maturities of up to five years.

Interest Rate Risk

The company may use interest rate swap contracts on certain investing and borrowing transactions to manage its net exposure to interest rates and to reduce its overall cost of borrowing.

•During the second quarter of 2020, we entered into treasury lock trades with an aggregate notional value of $600 million. We designated these treasury locks as cash flow hedges against interest rate exposure related to the issuance of fixed-rate debt in the second quarter of 2020. Of the aggregate notional value of $600 million, four treasury locks with a total notional amount of $425 million, were designated as hedges against the ten-year fixed rate debt maturing in 2030, and two treasury locks with a total notional amount of $175 million were designated as hedges against the thirty-year note maturing in 2050. Upon issuance of our 2020 senior notes, we terminated the treasury locks and paid $6 million in cash to the counterparties for settlement. The settlement amount, which represents the fair value of the contracts at the time of termination, was recorded in Accumulated other comprehensive loss, and will be amortized into income over the life of the 2020 senior notes.

•In anticipation of issuing fixed-rate debt, we may use forward-starting interest rate swaps that are designated as cash flow hedges to hedge against changes in interest rates that could impact expected future issuances of debt. Unrealized gains or losses on the forward-starting interest rate swaps are reported in Accumulated other comprehensive loss and are recognized in earnings over the life of the future fixed-rate notes. When the company discontinues hedge accounting because it is no longer probable that an anticipated transaction will occur within the originally expected period of execution, or within an additional two-month period thereafter, changes to fair value accumulated in other comprehensive income are recognized immediately in earnings. For the six months ended June 30, 2020, we entered into forward-starting interest rate swaps, having an effective date and mandatory termination date in March 2023, to hedge against interest rate exposure related principally to the anticipated future issuance of fixed-rate debt to be used primarily to refinance our 3.250% 2013 senior notes due 2023.

•We may use fixed-to-floating interest rate swaps that are designated as fair value hedges to hedge against changes in the fair value of certain fixed-rate debt attributable to changes in the benchmark LIBOR rate. These derivative instruments effectively convert a portion of the company’s long-term debt from fixed rate to floating rate debt based on three-month LIBOR plus a spread. Gains or losses on the fixed-to-floating interest rate swaps due to changes in LIBOR are recorded in Interest expense, net of capitalized interest. Changes in the fair value of the fixed-to-floating interest rate swaps are offset by changes in the fair value of the underlying fixed rate debt. As of June 30, 2020, we had an outstanding fixed-to-floating interest rate swap that corresponds to a portion of the 3.900% 2018 senior notes due 2028. The amounts recorded during the three and six months ended June 30, 2020 for changes in the fair value of this hedge are not material to our consolidated financial statements.

Outstanding Positions

The aggregate notional amounts of derivative instruments are as follows:

	Notional
	June 30,		December 31,
(MILLIONS)	2020		2019
Foreign currency forward-exchange contracts	$	1,550	$	1,364
Cross-currency interest rate swap contracts (in foreign currency):
euro	650		650
Swiss franc	25		25
Danish krone	600		600
Forward-starting interest rate swaps	$	450	$	250
Fixed-to-floating interest rate swap contracts	$	150	$	150

Fair Value of Derivative Instruments

The classification and fair values of derivative instruments are as follows:

		Fair Value of Derivatives
		June 30,		December 31,
(MILLIONS OF DOLLARS)	Balance Sheet Location	2020		2019
Derivatives Not Designated as Hedging Instruments
Foreign currency forward-exchange contracts	Other current assets	$	18	$	7
Foreign currency forward-exchange contracts	Other current liabilities	(19)		(5)
Total derivatives not designated as hedging instruments		$	(1)	$	2
Derivatives Designated as Hedging Instruments:
Forward-starting interest rate swap contracts	Other noncurrent assets	$	—	$	5
Forward-starting interest rate swap contracts	Other noncurrent liabilities	(32)		(1)
Cross-currency interest rate swap contracts	Other current assets	9		4
Cross-currency interest rate swap contracts	Other noncurrent assets	24		20
Cross-currency interest rate swap contracts	Other current liabilities	(5)		(3)
Fixed-to-floating interest rate swap contracts	Other noncurrent assets	14		—
Fixed-to-floating interest rate swap contracts	Other noncurrent liabilities	—		(2)
Total derivatives designated as hedging instruments		10		23
Total derivatives		$	9	$	25

The company’s cross-currency interest rate swaps are subject to master netting arrangements to mitigate credit risk by permitting net settlement of transactions with the same counterparty. We may also enter into collateral security arrangements with certain of our counterparties to exchange cash collateral when the net fair value of certain derivative instruments fluctuates from contractually established thresholds. At June 30, 2020, there was $25 million of collateral received related to the long-term cross-currency interest rate swaps recorded in Other noncurrent assets.

We use a market approach in valuing financial instruments on a recurring basis. Our derivative financial instruments are measured at fair value on a recurring basis using Level 2 inputs in the calculation of fair value.

The amounts of net gains on derivative instruments not designated as hedging instruments, recorded in Other (income)/deductions—net, are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Foreign currency forward-exchange contracts	$	4	$	8	$	10	$	4

These amounts were substantially offset in Other (income)/deductions—net by the effect of changing exchange rates on the underlying foreign currency exposures.

The amounts of unrecognized net gains/(losses) on interest rate swap contracts, recorded, net of tax, in Accumulated other comprehensive income/(loss), are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Forward-starting interest rate swap contracts	$	—	$	—	$	(27)	$	—
Cross-currency interest rate swap contracts	$	(14)	$	(4)	$	3	$	14

Gains on cross-currency interest rate swap contracts, recognized within Interest expense, net of capitalized interest, are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Cross-currency interest rate swap contracts	$	4	$	4	$	10	$	8

The net amount of deferred losses related to derivative instruments designated as cash flow hedges that is expected to be reclassified from Accumulated other comprehensive income/(loss) into earnings over the next 12 months is $1 million.

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Inventories

6 Months Ended

Jun. 30, 2020

Inventory Disclosure [Abstract]

Inventories

10. Inventories

The components of inventory are as follows:

	June 30,		December 31,
(MILLIONS OF DOLLARS)	2020		2019
Finished goods	$	790	$	701
Work-in-process	570		511
Raw materials and supplies	224		198
Inventories	$	1,584	$	1,410

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Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

11. Goodwill and Other Intangible Assets

A. Goodwill

The components of, and changes in, the carrying amount of goodwill are as follows:

(MILLIONS OF DOLLARS)	U.S.		International		Total
Balance, December 31, 2019	$	1,367	$	1,225	$	2,592
Additions	52		—		52
Other(a)	—		(15)		(15)
Balance, June 30, 2020	$	1,419	$	1,210	$	2,629

^(a) Includes adjustments for foreign currency translation.

The gross goodwill balance was $3,165 million and $3,128 million as of June 30, 2020 and December 31, 2019, respectively. Accumulated goodwill impairment losses were $536 million as of June 30, 2020 and December 31, 2019.

B. Other Intangible Assets

The components of identifiable intangible assets are as follows:

	As of June 30, 2020						As of December 31, 2019
					Identifiable						Identifiable
	Gross				Intangible Assets		Gross				Intangible Assets
	Carrying		Accumulated		Less Accumulated		Carrying		Accumulated		Less Accumulated
(MILLIONS OF DOLLARS)	Amount		Amortization		Amortization		Amount		Amortization		Amortization
Finite-lived intangible assets:
Developed technology rights	$	1,941	$	(722)	$	1,219	$	1,938	$	(657)	$	1,281
Brands and tradenames	429		(233)		196		424		(223)		201
Other	453		(283)		170		441		(249)		192
Total finite-lived intangible assets	2,823		(1,238)		1,585		2,803		(1,129)		1,674
Indefinite-lived intangible assets:
Brands and tradenames	104		—		104		104		—		104
In-process research and development	87		—		87		105		—		105
Product rights	7		—		7		7		—		7
Total indefinite-lived intangible assets	198		—		198		216		—		216
Identifiable intangible assets	$	3,021	$	(1,238)	$	1,783	$	3,019	$	(1,129)	$	1,890

C. Amortization

Amortization expense related to finite-lived acquired intangible assets that contribute to our ability to sell, manufacture, research, market and distribute products, compounds and intellectual property is included in Amortization of intangible assets as it benefits multiple business functions. Amortization expense related to finite-lived acquired intangible assets that are associated with a single function is included in Cost of sales, Selling, general and administrative expenses or Research and development expenses, as appropriate. Total amortization expense for finite-lived intangible assets was $61 million and $122 million for the three and six months ended June 30, 2020, respectively and $58 million and $116 million for the three and six months ended June 30, 2019, respectively.

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Share-Based Payments

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement [Abstract]

Share-Based Payments

12. Share-based Payments

The Zoetis 2013 Equity and Incentive Plan (the Equity Plan) provides long-term incentives to our employees and non-employee directors. The principal types of share-based awards available under the Equity Plan may include, but are not limited to, stock options, restricted stock and restricted stock units (RSUs), deferred stock units (DSUs), performance-vesting restricted stock units (PSUs) and other equity-based or cash-based awards.

The components of share-based compensation expense are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Stock options / stock appreciation rights	$	2	$	2	$	5	$	5
RSUs / DSUs(a)(b)	9		12		17		24
PSUs	5		3		10		6
Share-based compensation expense—total(c)	$	16	$	17	$	32	$	35

^(a) For the three and six months ended June 30, 2019, includes share-based compensation expense of $4 million and $9 million, respectively related to the acquisition of Abaxis, for the post-merger service period.

^(b)  Includes additional share-based compensation expense as a result of accelerated vesting of outstanding RSUs of terminated employees in connection with the acquisition of Abaxis, for the three and six months ended June 30, 2019 of approximately $2 million and $4 million, respectively, which is included in Restructuring charges and certain acquisition-related costs.

^(c)  Amounts capitalized to inventory were insignificant for the three and six months ended June 30, 2020 and $1 million for the three and six months ended June 30, 2019.

During the six months ended June 30, 2020, the company granted 292,727 stock options with a weighted-average exercise price of $143.23 per stock option and a weighted-average fair value of $33.83 per stock option. The fair-value based method for valuing each Zoetis stock option grant on the grant date uses the Black-Scholes-Merton option-pricing model, which incorporates a number of valuation assumptions. The weighted-average fair value was estimated based on the following assumptions: risk-free interest rate of 1.46%; expected dividend yield of 0.55%; expected stock price volatility of 24.22%; and expected term of 5.5 years. In general, stock options vest after three years of continuous service and the values determined through this fair-value based method generally are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.

During the six months ended June 30, 2020, the company granted 231,245 RSUs, with a weighted-average grant date fair value of $143.69 per RSU. RSUs are accounted for using a fair-value-based method that utilizes the closing price of Zoetis common stock on the date of grant. In general, RSUs vest after three years of continuous service from the grant date and the values generally are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.

During the six months ended June 30, 2020, the company granted 85,279 PSUs with a weighted-average grant date fair value of $217.49 per PSU. PSUs are accounted for using a Monte Carlo simulation model. The units underlying the PSUs will be earned and vested over a three-year performance period, based upon the total shareholder return of the company in comparison to the total shareholder return of the companies comprising the S&P 500 stock market index at the start of the performance period, excluding companies that during the performance period are acquired or no longer publicly traded (Relative TSR). The weighted-average fair value was estimated based on volatility assumptions of Zoetis common stock and an average of the S&P 500 companies, which were 20.2% and 24.8%, respectively. Depending on the company’s Relative TSR performance at the end of the performance period, the recipient may earn from 0% to 200% of the target number of units. Vested units are settled in shares of the company’s common stock. PSU values are amortized on a straight-line basis over the vesting term into Cost of sales, Selling, general and administrative expenses, or Research and development expenses, as appropriate.

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Stockholders' Equity

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Stockholders' Equity

13. Stockholders' Equity

Zoetis is authorized to issue 6 billion shares of common stock and 1 billion shares of preferred stock.

In December 2018, the company's Board of Directors authorized a $2.0 billion share repurchase program. As of June 30, 2020, there was approximately $1.4 billion remaining under this authorization. Purchases of Zoetis shares may be made at the discretion of management, depending on market conditions and business needs. The company temporarily suspended share repurchases beginning in the second quarter of 2020.

Accumulated other comprehensive loss

Changes, net of tax, in accumulated other comprehensive loss, were as follows:

			Currency Translation Adjustments
					Other Currency				Accumulated Other
	Cash Flow		Net Investment		Translation				Comprehensive
(MILLIONS OF DOLLARS)	Hedges		Hedges		Adjustments		Benefit Plans		Loss
Balance, December 31, 2018	$	(4)	$	10	$	(621)	$	(14)	$	(629)
Other comprehensive income/(loss), net of tax	1		4		(45)		—		(40)
Balance, June 30, 2019	$	(3)	$	14	$	(666)	$	(14)	$	(669)
Balance, December 31, 2019	$	—	$	21	$	(724)	$	(23)	$	(726)
Other comprehensive (loss)/income, net of tax	(32)		3		(101)		—		(130)
Balance, June 30, 2020	$	(32)	$	24	$	(825)	$	(23)	$	(856)

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Earnings per Share

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Earnings per Share

14. Earnings per Share

The following table presents the calculation of basic and diluted earnings per share:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS AND SHARES, EXCEPT PER SHARE DATA)	2020		2019		2020		2019
Numerator
Net income before allocation to noncontrolling interest	$	376	$	371	$	799	$	683
Less: Net loss attributable to noncontrolling interests	(1)		—		(1)		—
Net income attributable to Zoetis Inc.	$	377	$	371	$	800	$	683
Denominator
Weighted-average common shares outstanding	475.3		478.8		475.4		479.2
Common stock equivalents: stock options, RSUs, PSUs and DSUs	2.8		3.5		3.2		3.5
Weighted-average common and potential dilutive shares outstanding	478.1		482.3		478.6		482.7
Earnings per share attributable to Zoetis Inc. stockholders—basic	$	0.79	$	0.77	$	1.68	$	1.43
Earnings per share attributable to Zoetis Inc. stockholders—diluted	$	0.79	$	0.77	$	1.67	$	1.41

The number of stock options outstanding under the company's Equity Plan that were excluded from the computation of diluted earnings per share, as the effect would have been antidilutive, were de minimis for the three and six months ended June 30, 2020 and June 30, 2019.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

15. Commitments and Contingencies

We and certain of our subsidiaries are subject to numerous contingencies arising in the ordinary course of business. For a discussion of our tax contingencies, see Note 8. Income Taxes.

A. Legal Proceedings

Our non-tax contingencies include, among others, the following:

• Product liability and other product-related litigation, which can include injury, consumer, off-label promotion, antitrust and breach of contract claims.

• Commercial and other matters, which can include product-pricing claims and environmental claims and proceedings.

• Patent litigation, which typically involves challenges to the coverage and/or validity of our patents or those of third parties on various products or processes.

• Government investigations, which can involve regulation by national, state and local government agencies in the U.S. and in other countries.

Certain of these contingencies could result in losses, including damages, fines and/or civil penalties, and/or criminal charges, which could be substantial.

We believe that we have strong defenses in these types of matters, but litigation is inherently unpredictable and excessive verdicts do occur. We do not believe that any of these matters will have a material adverse effect on our financial position. However, we could incur judgments, enter into settlements or revise our expectations regarding the outcome of certain matters, and such developments could have a material adverse effect on our results of operations or cash flows in the period in which the amounts are paid.

We have accrued for losses that are both probable and reasonably estimable. Substantially all of these contingencies are subject to significant uncertainties and, therefore, determining the likelihood of a loss and/or the measurement of any loss can be complex. Consequently, we are unable to estimate the range of reasonably possible loss in excess of amounts accrued. Our assessments are based on estimates and assumptions that have been deemed reasonable by management, but the assessment process relies on estimates and assumptions that may prove to be incomplete or inaccurate, and unanticipated events and circumstances may occur that might cause us to change those estimates and assumptions.

Amounts recorded for legal and environmental contingencies can result from a complex series of judgments about future events and uncertainties and can rely on estimates and assumptions.

The principal matters to which we are a party are discussed below. In determining whether a pending matter is significant for financial reporting and disclosure purposes, we consider both quantitative and qualitative factors in order to assess materiality, such as, among other things, the amount of damages and the nature of any other relief sought in the proceeding, if such damages and other relief are specified; our view of the merits of the claims and of the strength of our defenses; whether the action purports to be a class action and our view of the likelihood that a class will be certified by the court; the jurisdiction in which the proceeding is pending; any experience that we or, to our knowledge, other companies have had in similar proceedings; whether disclosure of the action would be important to a reader of our financial statements, including whether disclosure might change a reader’s judgment about our financial statements in light of all of the information about the company that is available to the reader; the potential impact of the proceeding on our reputation; and the extent of public interest in the matter. In addition, with respect to patent matters, we consider, among other things, the financial significance of the product protected by the patent.

Ulianopolis, Brazil

In February 2012, the Municipality of Ulianopolis (State of Para, Brazil) filed a complaint against Fort Dodge Saúde Animal Ltda. (FDSAL), a Zoetis entity, and five other large companies alleging that waste sent to a local waste incineration facility for destruction, but that was not ultimately destroyed as the facility lost its operating permit, caused environmental impacts requiring cleanup.

The Municipality is seeking recovery of cleanup costs purportedly related to FDSAL's share of all waste accumulated at the incineration facility awaiting destruction, and compensatory damages to be allocated among the six defendants. We believe we have strong arguments against the claim, including defense strategies against any claim of joint and several liability.

At the request of the Municipal prosecutor, in April 2012, the lawsuit was suspended for one year. Since that time, the prosecutor has initiated investigations into the Municipality's actions in the matter as well as the efforts undertaken by the six defendants to remove and dispose of their individual waste from the incineration facility. On October 3, 2014, the Municipal prosecutor announced that the investigation remained ongoing and outlined the terms of a proposed Term of Reference (a document that establishes the minimum elements to be addressed in the preparation of an Environmental Impact Assessment), under which the companies would be liable to withdraw the waste and remediate the area.

On March 5, 2015, we presented our response to the prosecutor’s proposed Term of Reference, arguing that the proposed terms were overly general in nature and expressing our interest in discussing alternatives to address the matter. The prosecutor agreed to consider our request to engage a technical consultant to conduct an environmental diagnostic of the contaminated area. On May 29, 2015, we, in conjunction with the other defendant companies, submitted a draft cooperation agreement to the prosecutor, which outlined the proposed terms and conditions for the engagement of a technical consultant to conduct the environmental diagnostic. On August 19, 2016, the parties and the prosecutor agreed to engage the services of a third-party consultant to conduct a limited environmental assessment of the site. The site assessment was conducted during June 2017, and a written report summarizing the results of the assessment was provided to the parties and the prosecutor in November 2017. The report noted that waste is still present on the site and that further (Phase II) environmental assessments are needed before a plan to manage that remaining waste can be prepared. On April 1, 2019, the defendants met with the Prosecutor to discuss the conclusions set forth in the written report. Following that discussion, on April 10, 2019, the Prosecutor issued a procedural order requesting that the defendants prepare and submit a technical proposal outlining the steps needed to conduct the additional Phase II environmental assessments. The defendants presented the technical proposal to the Prosecutor on October 21, 2019. On March 3, 2020, the Prosecutor notified the defendants that he submitted the proposal to the Ministry of the Environment for its review and consideration. The technical proposal remains pending.

Lascadoil Contamination in Animal Feed

An investigation by the U.S. Food and Drug Administration (FDA) and the Michigan Department of Agriculture into the alleged contamination of the feed supply of certain turkey and hog feed mills in Michigan led to the recall of certain batches of soy oil (intended for use as an animal feed additive) that had originated with Shur-Green Farms LLC, a producer of soy oil, and that had been contaminated with lascadoil, an industrial by-product of certain Zoetis manufacturing processes. The contaminated feed is believed to have caused the deaths of approximately 50,000 turkeys and the contamination (but not death) of at least 20,000 hogs in August 2014. The investigation posited that Shur-Green inadvertently contaminated soy oil with lascadoil which it purchased from Zoetis for use as a bio-fuel ingredient, and then sold the contaminated soy oil to fat recycling vendors, who in turn unknowingly sold to feed mills for use in animal feed.

During the course of its investigation, the FDA identified the process used to manufacture Zoetis’ Avatec^® (lasalocid sodium) and Bovatec^® (lasalocid sodium) products as the possible source of the lascadoil, since lascadoil contains small amounts of lasalocid, the active ingredient found in both products. Zoetis sold the industrial lascadoil byproduct to Shur-Green, through its broker, Heritage Interactive Services, LLC. Under the terms of the sale agreement, the lascadoil could only be incinerated or resold for use in biofuel and the agreement expressly prohibited the reselling of lascadoil for use as a component in food. The FDA inspected the Zoetis site where Avatec and Bovatec are manufactured, and found no evidence that Zoetis was involved in the contamination of the animal feed.

On March 10, 2015, plaintiffs Restaurant Recycling, LLC (Restaurant Recycling) and Superior Feed Ingredients, LLC (Superior), both of whom are in the fat recycling business, filed a complaint in the Seventeenth Circuit Court for the State of Michigan against Shur-Green Farms alleging negligence and breach of warranty claims arising from their purchase of soy oil allegedly contaminated with lascadoil. Plaintiffs resold the allegedly contaminated soy oil to turkey feed mills for use in feed ingredient. Plaintiffs also named Zoetis as a defendant in the complaint

alleging that Zoetis failed to properly manufacture its products and breached an implied warranty that the soy oil was fit for use at turkey and hog mills. Zoetis was served with the complaint on June 3, 2015, and we filed our answer, denying all allegations, on July 15, 2015. On August 10, 2015, several of the turkey feed mills filed a joint complaint against Restaurant Recycling, Superior, Shur-Green Farms and others, alleging claims for negligence, misrepresentation, and breach of warranty, arising out of their alleged purchase and use of the contaminated soy oil. The complaint raises only one count against Zoetis for negligence. We filed an answer to the complaint on November 2, 2015, denying the allegation. On May 16, 2016, two additional turkey producers filed a complaint in the Seventeenth Circuit Court for the State of Michigan against the company, Restaurant Recycling, Superior, Shur-Green Farms and others, alleging claims for negligence and breach of warranties. We filed an answer to the complaint on June 20, 2016, denying the allegations. The Court has consolidated all three cases in Michigan for purposes of discovery and disposition. On July 28, 2017, we filed a motion for summary disposition on the grounds that no genuine issues of material fact exist and that Zoetis is entitled to judgment as a matter of law. On October 19, 2017, the Court granted our motion and dismissed all claims against Zoetis. On October 31, 2017, the plaintiffs filed motions for reconsideration of the Court's decision granting summary disposition. The Court, denied all such motions on December 6, 2017, for the same reasons cited in the Court’s original decision. On December 27, 2017, the plaintiffs filed a request with the Michigan Court of Appeals seeking an interlocutory (or interim) appeal of the lower Court’s decision, which we opposed on January 17, 2018. On July 5, 2018, the Court of Appeals denied the plaintiffs’ request for an interlocutory appeal. The case was remanded back to the lower Court, where it was scheduled to proceed to trial by jury. We have been advised that the remaining parties have reached an agreement to settle the dispute, and on June 24, 2020, the remaining parties jointly stipulated to the dismissal of all remaining claims. On July 13, 2020, Plaintiffs filed a claim of appeal with Michigan State Circuit Court seeking reversal of the lower Court’s decision granting Zoetis’ motion for summary disposition. We intend to oppose the appeal.

Other Matters

On February 14, 2019, the General Court of the European Union (General Court) annulled the January 11, 2016 decision of the European Commission (EC) that selective tax advantages granted by Belgium under its "excess profit" tax scheme constitute illegal state aid. On May 8, 2019, the EC filed an appeal to the decision of the General Court. On September 16, 2019, the EC opened separate in-depth investigations to assess whether Belgium excess profit rulings granted to 39 multinational companies, including Zoetis, constituted state aid for those companies. Due to the uncertainty with respect to the outcome of the appeal to be filed by the EC, the company has not reflected any potential benefits associated with the decision of the General Court in its consolidated financial statements as of June 30, 2020. We will continue to monitor the developments of the appeal and its ultimate resolution.

The EC published a decision on alleged competition law infringements by several human health pharmaceutical companies on June 19, 2013. One of the involved legal entities is Alpharma LLC (previously having the name Zoetis Products LLC). Alpharma LLC's involvement is solely related to its human health activities prior to Pfizer's acquisition of King/Alpharma. Zoetis paid a fine in the amount of 11 million euros (approximately $14 million) and was reimbursed in full by Pfizer in accordance with the Global Separation Agreement between Pfizer and Zoetis, which provides that Pfizer is obligated to indemnify Zoetis for any liabilities arising out of claims not related to its animal health assets. We filed an appeal of the decision on September 6, 2013, to the General Court of the European Union. On September 8, 2016, the General Court upheld the decision of the European Commission. On November 25, 2016, we filed an appeal to the Court of Justice of the European Union. On January 24, 2019, the Court heard oral argument on the merits of the appeal. On June 4, 2020, the Advocate General issued his non-binding opinion, which largely confirmed the decision of the General Court. We now await the Court’s decision.

B. Guarantees and Indemnifications

In the ordinary course of business and in connection with the sale of assets and businesses, we indemnify our counterparties against certain liabilities that may arise in connection with the transaction or related to activities prior to the transaction. These indemnifications typically pertain to environmental, tax, employee and/or product-related matters and patent-infringement claims. If the indemnified party were to make a successful claim pursuant to the terms of the indemnification, we would be required to reimburse the loss. These indemnifications are generally subject to threshold amounts, specified claim periods and other restrictions and limitations. Historically, we have not paid significant amounts under these provisions and, as of June 30, 2020, recorded amounts for the estimated fair value of these indemnifications were not significant.

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Segment Information

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Segment Information

16. Segment Information

Operating Segments

We manage our operations through two geographic operating segments: the U.S. and International. Each operating segment has responsibility for its commercial activities. Within each of these operating segments, we offer a diversified product portfolio, including vaccines, parasiticides, anti-infectives, medicated feed additives, animal health diagnostics and other pharmaceuticals, for both livestock and companion animal customers. Our chief operating decision maker uses the revenue and earnings of the two operating segments, among other factors, for performance evaluation and resource allocation.

In the first quarter of 2020, the company realigned certain management responsibilities. These changes did not impact the determination of our operating segments, however they resulted in the reallocation of certain costs between segments. These changes primarily include the following: (i) R&D costs related to our aquaculture business, which were previously reported in our international commercial segment, are now reported in Other business activities; (ii) certain other miscellaneous costs, which were previously reported in international commercial segment results, are now reported in Corporate; and (iii) certain diagnostic and other miscellaneous costs, which were previously reported in our U.S. results, are now reported in Corporate.

Other Costs and Business Activities

Certain costs are not allocated to our operating segment results, such as costs associated with the following:

• Other business activities, includes our Client Supply Services (CSS) contract manufacturing results, our human health business, and expenses associated with our dedicated veterinary medicine research and development organization, research alliances, U.S.

regulatory affairs and other operations focused on the development of our products. Other R&D-related costs associated with non-U.S. market and regulatory activities are generally included in the international commercial segment.

• Corporate, includes platform functions such as information technology, facilities, legal, finance, human resources, business development, certain diagnostic costs and communications, among others. These costs also include compensation costs and other miscellaneous operating expenses not charged to our operating segments, as well as interest income and expense.

•Certain transactions and events such as (i) Purchase accounting adjustments, where we incur expenses associated with the amortization of fair value adjustments to inventory, intangible assets and property, plant and equipment; (ii) Acquisition-related activities, where we incur costs associated with acquiring and integrating newly acquired businesses, such as transaction costs and integration costs; and (iii) Certain significant items, which comprise substantive, unusual items that, either as a result of their nature or size, would not be expected to occur as part of our normal business on a regular basis, such as restructuring charges and implementation costs associated with our cost-reduction/productivity initiatives that are not associated with an acquisition, certain asset impairment charges, certain legal and commercial settlements and the impact of divestiture-related gains and losses.

•Other unallocated includes (i) certain overhead expenses associated with our global manufacturing operations not charged to our operating segments; (ii) certain costs associated with information technology and finance that specifically support our global manufacturing operations; (iii) certain supply chain and global logistics costs; and (iv) procurement costs.

Segment Assets

We manage our assets on a total company basis, not by operating segment. Therefore, our chief operating decision maker does not regularly review any asset information by operating segment and, accordingly, we do not report asset information by operating segment.

Selected Statement of Income Information

	Earnings						Depreciation and Amortization(a)
	Three Months Ended						Three Months Ended
	June 30,						June 30,
(MILLIONS OF DOLLARS)	2020			2019			2020		2019
U.S.
Revenue	$	823		$	780
Cost of sales	154			158
Gross profit	669			622
Gross margin	81.3		%	79.7		%
Operating expenses	136			127
Other (income)/deductions-net	3			—
U.S. Earnings	530			495			$	12	$	9
International
Revenue(b)	708			742
Cost of sales	228			218
Gross profit	480			524
Gross margin	67.8		%	70.6		%
Operating expenses	117			146
Other (income)/deductions-net	1			—
International Earnings	362			378			12		12
Total operating segments	892			873			24		21
Other business activities	(90)			(79)			7		6
Reconciling Items:
Corporate	(179)			(178)			26		16
Purchase accounting adjustments	(53)			(58)			53		55
Acquisition-related costs	(7)			(22)			—		—
Certain significant items(c)	(6)			(3)			—		—
Other unallocated	(75)			(78)			1		—
Total Earnings(d)	$	482		$	455		$	111	$	98

^(a) Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

^(b) Revenue denominated in euros was $161 million and $184 million for the three months ended June 30, 2020 and June 30, 2019, respectively.

^(c) For the three months ended June 30, 2020, primarily represents CEO transition-related costs of $5 million. For the three months ended June 30, 2019, primarily represents product transfer costs and consulting fees related to our supply network strategy. 

^(d) Defined as income before provision for taxes on income.      

	Earnings						Depreciation and Amortization(a)
	Six Months Ended						Six Months Ended
	June 30,						June 30,
(MILLIONS OF DOLLARS)	2020			2019			2020		2019
U.S.
Revenue	$	1,609		$	1,498
Cost of sales	321			305
Gross profit	1,288			1,193
Gross margin	80.1		%	79.6		%
Operating expenses	261			237
Other (income)/deductions-net	4			—
U.S. Earnings	1,023			956			$	25	$	19
International
Revenue(b)	1,436			1,460
Cost of sales	452			428
Gross profit	984			1,032
Gross margin	68.5		%	70.7		%
Operating expenses	242			278
Other (income)/deductions-net	1			—
International Earnings	741			754			26		25
Total operating segments	1,764			1,710			51		44
Other business activities	(177)			(159)			13		11
Reconciling Items:
Corporate	(352)			(340)			48		30
Purchase accounting adjustments	(107)			(124)			107		110
Acquisition-related costs	(14)			(27)			—		—
Certain significant items(c)	5			(73)			—		—
Other unallocated	(140)			(151)			2		1
Total Earnings(d)	$	979		$	836		$	221	$	196

^(a) Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

^(b) Revenue denominated in euros was $331 million and $365 million for the six months ended June 30, 2020 and June 30, 2019, respectively.

^(c) For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites of $17 million, partially offset by CEO transition-related costs of $9 million. For the six months ended June 30, 2019, primarily represents a change in estimate related to inventory costing of $68 million, and product transfer costs and consulting fees of $5 million related to our supply network strategy. 

(d) Defined as income before provision for taxes on income.

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Accounting Standards (Policies)

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements were prepared following the requirements of the Securities and Exchange Commission (SEC) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America (U.S. GAAP) can be condensed or omitted. Balance sheet amounts and operating results for subsidiaries operating outside the U.S. are as of and for the six-month periods ended May 31, 2020 and May 31, 2019.

Recently Adopted Accounting Standards and Recently Issued Accounting Standards

Recently Adopted Accounting Standards

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Topic 350-40), an accounting standards update which expands the scope of costs associated with cloud computing arrangements that must be capitalized. Under the new guidance, costs associated with implementing a cloud computing arrangement that is a service contract must be capitalized and expensed over the term of the hosting arrangement. We adopted this guidance as of January 1, 2020, the required effective date, on a prospective basis. The adoption did not have a significant impact on our consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments (Topic 326), an accounting standards update which requires an entity to measure and recognize expected credit losses for certain financial instruments, including trade receivables, as an allowance that reflects the entity's current estimate of credit losses expected to be incurred. For available-for-sale debt securities with unrealized losses, the standard requires allowances to be recorded instead of reducing the amortized cost of the investment. We adopted this guidance as of January 1, 2020, the required effective date, on a prospective basis. The adoption did not have a significant impact on our consolidated financial statements.

Recently Issued Accounting Standards

In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The new guidance provides temporary optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate (LIBOR) or another reference rate expected to be discontinued because of reference rate reform. Adoption of the provisions of ASU 2020-04 is optional and effective as of March 12, 2020, but is only available through December 31, 2022. We are currently evaluating the impact that the new guidance will have on our consolidated financial statements and related disclosures, as well as the timing of the potential adoption

Tax Contingencies

Our tax liabilities for uncertain tax positions relate primarily to issues common among multinational corporations. Any settlements or statute of limitations expirations could result in a significant decrease in our uncertain tax positions. Substantially all of these unrecognized tax benefits, if recognized, would impact our effective income tax rate. We do not expect that within the next twelve months any of our uncertain tax positions could significantly decrease as a result of settlements with taxing authorities or the expiration of the statutes of limitations. Our assessments are based on estimates and assumptions that have been deemed reasonable by management, but our estimates of uncertain tax positions and potential tax benefits may not be representative of actual outcomes, and any variation from such estimates could materially affect our financial statements in the period of settlement or when the statutes of limitations expire, as we treat these events as discrete items in the period of resolution. Finalizing audits with the relevant taxing authorities can include formal administrative and legal proceedings, and, as a result, it is difficult to estimate the timing and range of possible changes related to our uncertain tax positions, and such changes could be significant.

Legal Proceedings

Our non-tax contingencies include, among others, the following:

• Product liability and other product-related litigation, which can include injury, consumer, off-label promotion, antitrust and breach of contract claims.

• Commercial and other matters, which can include product-pricing claims and environmental claims and proceedings.

• Patent litigation, which typically involves challenges to the coverage and/or validity of our patents or those of third parties on various products or processes.

• Government investigations, which can involve regulation by national, state and local government agencies in the U.S. and in other countries.

Certain of these contingencies could result in losses, including damages, fines and/or civil penalties, and/or criminal charges, which could be substantial.

We believe that we have strong defenses in these types of matters, but litigation is inherently unpredictable and excessive verdicts do occur. We do not believe that any of these matters will have a material adverse effect on our financial position. However, we could incur judgments, enter into settlements or revise our expectations regarding the outcome of certain matters, and such developments could have a material adverse effect on our results of operations or cash flows in the period in which the amounts are paid.

We have accrued for losses that are both probable and reasonably estimable. Substantially all of these contingencies are subject to significant uncertainties and, therefore, determining the likelihood of a loss and/or the measurement of any loss can be complex. Consequently, we are unable to estimate the range of reasonably possible loss in excess of amounts accrued. Our assessments are based on estimates and assumptions that have been deemed reasonable by management, but the assessment process relies on estimates and assumptions that may prove to be incomplete or inaccurate, and unanticipated events and circumstances may occur that might cause us to change those estimates and assumptions.

Amounts recorded for legal and environmental contingencies can result from a complex series of judgments about future events and uncertainties and can rely on estimates and assumptions.

The principal matters to which we are a party are discussed below. In determining whether a pending matter is significant for financial reporting and disclosure purposes, we consider both quantitative and qualitative factors in order to assess materiality, such as, among other things, the amount of damages and the nature of any other relief sought in the proceeding, if such damages and other relief are specified; our view of the merits of the claims and of the strength of our defenses; whether the action purports to be a class action and our view of the likelihood that a class will be certified by the court; the jurisdiction in which the proceeding is pending; any experience that we or, to our knowledge, other companies have had in similar proceedings; whether disclosure of the action would be important to a reader of our financial statements, including whether disclosure might change a reader’s judgment about our financial statements in light of all of the information about the company that is available to the reader; the potential impact of the proceeding on our reputation; and the extent of public interest in the matter. In addition, with respect to patent matters, we consider, among other things, the financial significance of the product protected by the patent.

Guarantees and Indemnifications

B. Guarantees and IndemnificationsIn the ordinary course of business and in connection with the sale of assets and businesses, we indemnify our counterparties against certain liabilities that may arise in connection with the transaction or related to activities prior to the transaction. These indemnifications typically pertain to environmental, tax, employee and/or product-related matters and patent-infringement claims. If the indemnified party were to make a successful claim pursuant to the terms of the indemnification, we would be required to reimburse the loss. These indemnifications are generally subject to threshold amounts, specified claim periods and other restrictions and limitations. Historically, we have not paid significant amounts under these provisions and, as of June 30, 2020, recorded amounts for the estimated fair value of these indemnifications were not significant.

Segment Information

Operating Segments

We manage our operations through two geographic operating segments: the U.S. and International. Each operating segment has responsibility for its commercial activities. Within each of these operating segments, we offer a diversified product portfolio, including vaccines, parasiticides, anti-infectives, medicated feed additives, animal health diagnostics and other pharmaceuticals, for both livestock and companion animal customers. Our chief operating decision maker uses the revenue and earnings of the two operating segments, among other factors, for performance evaluation and resource allocation.

In the first quarter of 2020, the company realigned certain management responsibilities. These changes did not impact the determination of our operating segments, however they resulted in the reallocation of certain costs between segments. These changes primarily include the following: (i) R&D costs related to our aquaculture business, which were previously reported in our international commercial segment, are now reported in Other business activities; (ii) certain other miscellaneous costs, which were previously reported in international commercial segment results, are now reported in Corporate; and (iii) certain diagnostic and other miscellaneous costs, which were previously reported in our U.S. results, are now reported in Corporate.

Other Costs and Business Activities

Certain costs are not allocated to our operating segment results, such as costs associated with the following:

• Other business activities, includes our Client Supply Services (CSS) contract manufacturing results, our human health business, and expenses associated with our dedicated veterinary medicine research and development organization, research alliances, U.S.

regulatory affairs and other operations focused on the development of our products. Other R&D-related costs associated with non-U.S. market and regulatory activities are generally included in the international commercial segment.

• Corporate, includes platform functions such as information technology, facilities, legal, finance, human resources, business development, certain diagnostic costs and communications, among others. These costs also include compensation costs and other miscellaneous operating expenses not charged to our operating segments, as well as interest income and expense.

•Certain transactions and events such as (i) Purchase accounting adjustments, where we incur expenses associated with the amortization of fair value adjustments to inventory, intangible assets and property, plant and equipment; (ii) Acquisition-related activities, where we incur costs associated with acquiring and integrating newly acquired businesses, such as transaction costs and integration costs; and (iii) Certain significant items, which comprise substantive, unusual items that, either as a result of their nature or size, would not be expected to occur as part of our normal business on a regular basis, such as restructuring charges and implementation costs associated with our cost-reduction/productivity initiatives that are not associated with an acquisition, certain asset impairment charges, certain legal and commercial settlements and the impact of divestiture-related gains and losses.

•Other unallocated includes (i) certain overhead expenses associated with our global manufacturing operations not charged to our operating segments; (ii) certain costs associated with information technology and finance that specifically support our global manufacturing operations; (iii) certain supply chain and global logistics costs; and (iv) procurement costs.

Segment Assets

We manage our assets on a total company basis, not by operating segment. Therefore, our chief operating decision maker does not regularly review any asset information by operating segment and, accordingly, we do not report asset information by operating segment.

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Commitment and Contingencies (Policies)	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Guarantees and Indemnifications	B. Guarantees and IndemnificationsIn the ordinary course of business and in connection with the sale of assets and businesses, we indemnify our counterparties against certain liabilities that may arise in connection with the transaction or related to activities prior to the transaction. These indemnifications typically pertain to environmental, tax, employee and/or product-related matters and patent-infringement claims. If the indemnified party were to make a successful claim pursuant to the terms of the indemnification, we would be required to reimburse the loss. These indemnifications are generally subject to threshold amounts, specified claim periods and other restrictions and limitations. Historically, we have not paid significant amounts under these provisions and, as of June 30, 2020, recorded amounts for the estimated fair value of these indemnifications were not significant.

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Revenue Revenue Recognition and Deferred Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Revenue Recognition and Deferred Revenue [Abstract]

Revenue from External Customers by Geographic Areas

Revenue by geographic area

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
United States	$	823	$	780	$	1,609	$	1,498
Australia	51		49		94		97
Brazil	56		74		119		134
Canada	54		54		94		95
Chile	25		22		48		42
China	66		56		132		116
France	24		27		53		59
Germany	40		39		74		76
Italy	14		28		35		56
Japan	53		41		94		78
Mexico	26		30		58		58
Spain	24		30		52		57
United Kingdom	26		42		81		99
Other developed markets	90		88		177		172
Other emerging markets	159		162		325		321
	1,531		1,522		3,045		2,958
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

Revenue from External Customers by Major Species

Revenue by major species

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
U.S.
Companion animal	$	594	$	500	$	1,093	$	945
Livestock	229		280		516		553
	823		780		1,609		1,498
International
Companion animal	288		298		586		582
Livestock	420		444		850		878
	708		742		1,436		1,460
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

Revenue from External Customers by Species

Revenue by species

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Companion Animal:
Dogs and Cats	$	831	$	754	$	1,577	$	1,442
Horses	51		44		102		85
	882		798		1,679		1,527
Livestock:
Cattle	320		379		690		759
Swine	146		158		303		307
Poultry	135		143		283		282
Fish	30		25		56		48
Sheep and other	18		19		34		35
	649		724		1,366		1,431
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

Schedule of Significant Product Revenues

Revenue by major product category

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Vaccines	$	336	$	370	$	685	$	728
Parasiticides	307		266		562		497
Anti-infectives	241		293		521		579
Dermatology	227		185		424		344
Other pharmaceuticals	192		187		389		377
Medicated feed additives	109		115		234		227
Animal health diagnostics	69		65		129		125
Other non-pharmaceuticals	50		41		101		81
	1,531		1,522		3,045		2,958
Contract manufacturing & human health	17		25		37		44
Total Revenue	$	1,548	$	1,547	$	3,082	$	3,002

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Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives (Tables)

6 Months Ended

Jun. 30, 2020

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

The components of costs incurred in connection with restructuring initiatives, acquisitions and cost-reduction/productivity initiatives are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Restructuring charges and certain acquisition-related costs:
Integration costs(a)	$	6	$	8	$	12	$	9
Restructuring charges(b):
Employee termination costs	2		14		5		18
Total Restructuring charges and certain acquisition-related costs	$	8	$	22	$	17	$	27

^(a) Integration costs represent external, incremental costs directly related to integrating acquired businesses and primarily include expenditures for consulting and the integration of systems and processes, as well as product transfer costs.

^(b) The restructuring charges for the three and six months ended June 30, 2020 primarily relate to CEO transition-related costs which are associated with Manufacturing/research/corporate.

The restructuring charges for the three and six months ended June 30, 2019 primarily relate to the acquisition of Abaxis which are associated with Manufacturing/research/corporate.

(MILLIONS OF DOLLARS)	Accrual(a)
Balance, December 31, 2019(b)	$	45
Provision	5
Utilization and other(c)	(12)
Balance, June 30, 2020(b)	$	38

^(a)  Changes in our restructuring accrual represents employee termination costs.

^(b) At June 30, 2020, and December 31, 2019, included in Accrued expenses ($15 million and $23 million, respectively) and Other noncurrent liabilities ($23 million and $22 million, respectively).

(c)  Includes adjustments for foreign currency translation.

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Other (Income)/Deductions - Net (Tables)

6 Months Ended

Jun. 30, 2020

Other Income and Expenses [Abstract]

Components of Other (Income)/Deductions—Net

The components of Other (income)/deductions—net are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Royalty-related income	$	(5)	$	(3)	$	(6)	$	(8)
Interest income	(2)		(9)		(8)		(19)
Identifiable intangible asset impairment charges	3		—		3		—
Net gain on sale of assets(a)	(1)		—		(18)		—
Foreign currency loss(b)	6		7		11		7
Impairment of an equity investment	4		—		4		—
Other, net	—		(1)		(1)		—
Other (income)/deductions—net	$	5	$	(6)	$	(15)	$	(20)

^(a) For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites. 

^(b) Primarily driven by costs related to hedging and exposures to certain emerging and developed market currencies.

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Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2020

Financial Instruments [Abstract]

Schedule of Long-term Debt Instruments

The components of our long-term debt are as follows:

	June 30,		December 31,
(MILLIONS OF DOLLARS)	2020		2019
3.450% 2015 senior notes due 2020	$	500	$	500
2018 floating rate (three-month USD LIBOR plus 0.44%) senior notes due 2021	300		300
3.250% 2018 senior notes due 2021	300		300
3.250% 2013 senior notes due 2023	1,350		1,350
4.500% 2015 senior notes due 2025	750		750
3.000% 2017 senior notes due 2027	750		750
3.900% 2018 senior notes due 2028	500		500
2.000% 2020 senior notes due 2030	750		—
4.700% 2013 senior notes due 2043	1,150		1,150
3.950% 2017 senior notes due 2047	500		500
4.450% 2018 senior notes due 2048	400		400
3.000% 2020 senior notes due 2050	500		—
	7,750		6,500
Unamortized debt discount / debt issuance costs	(70)		(51)
Less current portion of long-term debt	500		500
Cumulative fair value adjustment for interest rate swap contracts	14		(2)
Long-term debt, net of discount and issuance costs	$	7,194	$	5,947

Schedule of Maturities of Long-term Debt

The principal amount of long-term debt outstanding, as of June 30, 2020, matures in the following years:

											After
(MILLIONS OF DOLLARS)	2020		2021		2022		2023		2024		2024		Total
Maturities	$	500	$	600	$	—	$	1,350	$	—	$	5,300	$	7,750

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The classification and fair values of derivative instruments are as follows:

		Fair Value of Derivatives
		June 30,		December 31,
(MILLIONS OF DOLLARS)	Balance Sheet Location	2020		2019
Derivatives Not Designated as Hedging Instruments
Foreign currency forward-exchange contracts	Other current assets	$	18	$	7
Foreign currency forward-exchange contracts	Other current liabilities	(19)		(5)
Total derivatives not designated as hedging instruments		$	(1)	$	2
Derivatives Designated as Hedging Instruments:
Forward-starting interest rate swap contracts	Other noncurrent assets	$	—	$	5
Forward-starting interest rate swap contracts	Other noncurrent liabilities	(32)		(1)
Cross-currency interest rate swap contracts	Other current assets	9		4
Cross-currency interest rate swap contracts	Other noncurrent assets	24		20
Cross-currency interest rate swap contracts	Other current liabilities	(5)		(3)
Fixed-to-floating interest rate swap contracts	Other noncurrent assets	14		—
Fixed-to-floating interest rate swap contracts	Other noncurrent liabilities	—		(2)
Total derivatives designated as hedging instruments		10		23
Total derivatives		$	9	$	25

Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location

The amounts of net gains on derivative instruments not designated as hedging instruments, recorded in Other (income)/deductions—net, are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Foreign currency forward-exchange contracts	$	4	$	8	$	10	$	4

Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss)

The amounts of unrecognized net gains/(losses) on interest rate swap contracts, recorded, net of tax, in Accumulated other comprehensive income/(loss), are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Forward-starting interest rate swap contracts	$	—	$	—	$	(27)	$	—
Cross-currency interest rate swap contracts	$	(14)	$	(4)	$	3	$	14

Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location

Gains on cross-currency interest rate swap contracts, recognized within Interest expense, net of capitalized interest, are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS)	2020		2019		2020		2019
Cross-currency interest rate swap contracts	$	4	$	4	$	10	$	8

Schedule of Derivative Instruments

The aggregate notional amounts of derivative instruments are as follows:

	Notional
	June 30,		December 31,
(MILLIONS)	2020		2019
Foreign currency forward-exchange contracts	$	1,550	$	1,364
Cross-currency interest rate swap contracts (in foreign currency):
euro	650		650
Swiss franc	25		25
Danish krone	600		600
Forward-starting interest rate swaps	$	450	$	250
Fixed-to-floating interest rate swap contracts	$	150	$	150

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Inventories (Tables)

6 Months Ended

Jun. 30, 2020

Inventory Disclosure [Abstract]

Components of Inventory

The components of inventory are as follows:

	June 30,		December 31,
(MILLIONS OF DOLLARS)	2020		2019
Finished goods	$	790	$	701
Work-in-process	570		511
Raw materials and supplies	224		198
Inventories	$	1,584	$	1,410

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Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

The components of, and changes in, the carrying amount of goodwill are as follows:

(MILLIONS OF DOLLARS)	U.S.		International		Total
Balance, December 31, 2019	$	1,367	$	1,225	$	2,592
Additions	52		—		52
Other(a)	—		(15)		(15)
Balance, June 30, 2020	$	1,419	$	1,210	$	2,629

^(a) Includes adjustments for foreign currency translation.

Components of Identifiable Intangible Assets

The components of identifiable intangible assets are as follows:

	As of June 30, 2020						As of December 31, 2019
					Identifiable						Identifiable
	Gross				Intangible Assets		Gross				Intangible Assets
	Carrying		Accumulated		Less Accumulated		Carrying		Accumulated		Less Accumulated
(MILLIONS OF DOLLARS)	Amount		Amortization		Amortization		Amount		Amortization		Amortization
Finite-lived intangible assets:
Developed technology rights	$	1,941	$	(722)	$	1,219	$	1,938	$	(657)	$	1,281
Brands and tradenames	429		(233)		196		424		(223)		201
Other	453		(283)		170		441		(249)		192
Total finite-lived intangible assets	2,823		(1,238)		1,585		2,803		(1,129)		1,674
Indefinite-lived intangible assets:
Brands and tradenames	104		—		104		104		—		104
In-process research and development	87		—		87		105		—		105
Product rights	7		—		7		7		—		7
Total indefinite-lived intangible assets	198		—		198		216		—		216
Identifiable intangible assets	$	3,021	$	(1,238)	$	1,783	$	3,019	$	(1,129)	$	1,890

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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Changes, Net of Tax, in Accumulated Other Comprehensive Loss

Changes, net of tax, in accumulated other comprehensive loss, were as follows:

			Currency Translation Adjustments
					Other Currency				Accumulated Other
	Cash Flow		Net Investment		Translation				Comprehensive
(MILLIONS OF DOLLARS)	Hedges		Hedges		Adjustments		Benefit Plans		Loss
Balance, December 31, 2018	$	(4)	$	10	$	(621)	$	(14)	$	(629)
Other comprehensive income/(loss), net of tax	1		4		(45)		—		(40)
Balance, June 30, 2019	$	(3)	$	14	$	(666)	$	(14)	$	(669)
Balance, December 31, 2019	$	—	$	21	$	(724)	$	(23)	$	(726)
Other comprehensive (loss)/income, net of tax	(32)		3		(101)		—		(130)
Balance, June 30, 2020	$	(32)	$	24	$	(825)	$	(23)	$	(856)

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Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Share

The following table presents the calculation of basic and diluted earnings per share:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(MILLIONS OF DOLLARS AND SHARES, EXCEPT PER SHARE DATA)	2020		2019		2020		2019
Numerator
Net income before allocation to noncontrolling interest	$	376	$	371	$	799	$	683
Less: Net loss attributable to noncontrolling interests	(1)		—		(1)		—
Net income attributable to Zoetis Inc.	$	377	$	371	$	800	$	683
Denominator
Weighted-average common shares outstanding	475.3		478.8		475.4		479.2
Common stock equivalents: stock options, RSUs, PSUs and DSUs	2.8		3.5		3.2		3.5
Weighted-average common and potential dilutive shares outstanding	478.1		482.3		478.6		482.7
Earnings per share attributable to Zoetis Inc. stockholders—basic	$	0.79	$	0.77	$	1.68	$	1.43
Earnings per share attributable to Zoetis Inc. stockholders—diluted	$	0.79	$	0.77	$	1.67	$	1.41

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Schedule of Selected Income Statement Information by Segment

Segment Assets

We manage our assets on a total company basis, not by operating segment. Therefore, our chief operating decision maker does not regularly review any asset information by operating segment and, accordingly, we do not report asset information by operating segment.

Selected Statement of Income Information

	Earnings						Depreciation and Amortization(a)
	Three Months Ended						Three Months Ended
	June 30,						June 30,
(MILLIONS OF DOLLARS)	2020			2019			2020		2019
U.S.
Revenue	$	823		$	780
Cost of sales	154			158
Gross profit	669			622
Gross margin	81.3		%	79.7		%
Operating expenses	136			127
Other (income)/deductions-net	3			—
U.S. Earnings	530			495			$	12	$	9
International
Revenue(b)	708			742
Cost of sales	228			218
Gross profit	480			524
Gross margin	67.8		%	70.6		%
Operating expenses	117			146
Other (income)/deductions-net	1			—
International Earnings	362			378			12		12
Total operating segments	892			873			24		21
Other business activities	(90)			(79)			7		6
Reconciling Items:
Corporate	(179)			(178)			26		16
Purchase accounting adjustments	(53)			(58)			53		55
Acquisition-related costs	(7)			(22)			—		—
Certain significant items(c)	(6)			(3)			—		—
Other unallocated	(75)			(78)			1		—
Total Earnings(d)	$	482		$	455		$	111	$	98

^(a) Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

^(b) Revenue denominated in euros was $161 million and $184 million for the three months ended June 30, 2020 and June 30, 2019, respectively.

^(c) For the three months ended June 30, 2020, primarily represents CEO transition-related costs of $5 million. For the three months ended June 30, 2019, primarily represents product transfer costs and consulting fees related to our supply network strategy. 

^(d) Defined as income before provision for taxes on income.      

	Earnings						Depreciation and Amortization(a)
	Six Months Ended						Six Months Ended
	June 30,						June 30,
(MILLIONS OF DOLLARS)	2020			2019			2020		2019
U.S.
Revenue	$	1,609		$	1,498
Cost of sales	321			305
Gross profit	1,288			1,193
Gross margin	80.1		%	79.6		%
Operating expenses	261			237
Other (income)/deductions-net	4			—
U.S. Earnings	1,023			956			$	25	$	19
International
Revenue(b)	1,436			1,460
Cost of sales	452			428
Gross profit	984			1,032
Gross margin	68.5		%	70.7		%
Operating expenses	242			278
Other (income)/deductions-net	1			—
International Earnings	741			754			26		25
Total operating segments	1,764			1,710			51		44
Other business activities	(177)			(159)			13		11
Reconciling Items:
Corporate	(352)			(340)			48		30
Purchase accounting adjustments	(107)			(124)			107		110
Acquisition-related costs	(14)			(27)			—		—
Certain significant items(c)	5			(73)			—		—
Other unallocated	(140)			(151)			2		1
Total Earnings(d)	$	979		$	836		$	221	$	196

^(a) Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

^(b) Revenue denominated in euros was $331 million and $365 million for the six months ended June 30, 2020 and June 30, 2019, respectively.

^(c) For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites of $17 million, partially offset by CEO transition-related costs of $9 million. For the six months ended June 30, 2019, primarily represents a change in estimate related to inventory costing of $68 million, and product transfer costs and consulting fees of $5 million related to our supply network strategy. 

(d) Defined as income before provision for taxes on income.

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Organization (Details) - Jun. 30, 2020	region	country	species	category	product_category
Product Information [Line Items]
Number of regional segments | region	2
Number of countries in which entity markets products		45
Number of core animal species | species			8
Number of major product categories				7	300
Product
Product Information [Line Items]
Number of countries in which entity markets products		100

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Revenue - Narrative (Details) $ in Millions	Jun. 30, 2020 category	Jun. 30, 2020 product_category	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Revenue Recognition and Deferred Revenue [Abstract]
Number of major product categories	7	300
Other current liabilities			$ 5	$ 4
Contract liabilities			$ 10	$ 11

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Revenue - Revenue by Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue from External Customer [Line Items]
Revenue	$ 1,548	$ 1,547	$ 3,082	$ 3,002
Other pharmaceuticals
Revenue from External Customer [Line Items]
Revenue	192	187	389	377
UNITED STATES
Revenue from External Customer [Line Items]
Revenue	823	780	1,609	1,498
AUSTRALIA
Revenue from External Customer [Line Items]
Revenue	51	49	94	97
BRAZIL
Revenue from External Customer [Line Items]
Revenue	56	74	119	134
CANADA
Revenue from External Customer [Line Items]
Revenue	54	54	94	95
CHINA
Revenue from External Customer [Line Items]
Revenue	66	56	132	116
FRANCE
Revenue from External Customer [Line Items]
Revenue	24	27	53	59
GERMANY
Revenue from External Customer [Line Items]
Revenue	40	39	74	76
ITALY
Revenue from External Customer [Line Items]
Revenue	14	28	35	56
JAPAN
Revenue from External Customer [Line Items]
Revenue	53	41	94	78
MEXICO
Revenue from External Customer [Line Items]
Revenue	26	30	58	58
SPAIN
Revenue from External Customer [Line Items]
Revenue	24	30	52	57
UNITED KINGDOM
Revenue from External Customer [Line Items]
Revenue	26	42	81	99
Other Developed Markets [Member]
Revenue from External Customer [Line Items]
Revenue	90	88	177	172
Other Emerging Markets [Member]
Revenue from External Customer [Line Items]
Revenue	159	162	325	321
Total geographical area
Revenue from External Customer [Line Items]
Revenue	1,531	1,522	3,045	2,958
Contract Manufacturing and Human Health Diagnostics [Member]
Revenue from External Customer [Line Items]
Revenue	17	25	37	44
CHILE
Revenue from External Customer [Line Items]
Revenue	$ 25	$ 22	$ 48	$ 42

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Revenue - Revenue by Major Species (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Revenue from External Customer [Line Items]
Revenue	$ 1,548	$ 1,547	$ 3,082		$ 3,002
Companion animal
Revenue from External Customer [Line Items]
Revenue	649	724	1,366		1,431
Companion animal | U.S.
Revenue from External Customer [Line Items]
Revenue	229	280	516		553
Companion animal | International
Revenue from External Customer [Line Items]
Revenue	420	444	850		878
Livestock
Revenue from External Customer [Line Items]
Revenue	882	798	1,679		1,527
Livestock | U.S.
Revenue from External Customer [Line Items]
Revenue	594	500	1,093		945
Livestock | International
Revenue from External Customer [Line Items]
Revenue	288	298	586		582
Operating Segments | U.S.
Revenue from External Customer [Line Items]
Revenue	823	780	1,609		1,498
Operating Segments | International
Revenue from External Customer [Line Items]
Revenue	$ 708	$ 742	$ 1,436	[1]	$ 1,460	[1]

[1] Revenue denominated in euros was $331 million and $365 million for the six months ended June 30, 2020 and June 30, 2019, respectively.

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Revenue - Revenue by Species (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue from External Customer [Line Items]
Revenue	$ 1,548	$ 1,547	$ 3,082	$ 3,002
Contract Manufacturing and Human Health Diagnostics [Member]
Revenue from External Customer [Line Items]
Revenue	17	25	37	44
Cattle
Revenue from External Customer [Line Items]
Revenue	320	379	690	759
Swine
Revenue from External Customer [Line Items]
Revenue	146	158	303	307
Poultry
Revenue from External Customer [Line Items]
Revenue	135	143	283	282
Fish
Revenue from External Customer [Line Items]
Revenue	30	25	56	48
Sheep and other
Revenue from External Customer [Line Items]
Revenue	18	19	34	35
Companion animal
Revenue from External Customer [Line Items]
Revenue	649	724	1,366	1,431
Dogs and Cats [Member]
Revenue from External Customer [Line Items]
Revenue	831	754	1,577	1,442
Livestock
Revenue from External Customer [Line Items]
Revenue	882	798	1,679	1,527
Other pharmaceuticals
Revenue from External Customer [Line Items]
Revenue	192	187	389	377
Horses
Revenue from External Customer [Line Items]
Revenue	$ 51	$ 44	$ 102	$ 85

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Revenue - Revenue by Product (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue from External Customer [Line Items]
Revenue	$ 1,548	$ 1,547	$ 3,082	$ 3,002
Contract Manufacturing and Human Health Diagnostics [Member]
Revenue from External Customer [Line Items]
Revenue	17	25	37	44
Vaccines
Revenue from External Customer [Line Items]
Revenue	336	370	685	728
Other pharmaceuticals
Revenue from External Customer [Line Items]
Revenue	192	187	389	377
Anti-infectives
Revenue from External Customer [Line Items]
Revenue	241	293	521	579
Parasiticides
Revenue from External Customer [Line Items]
Revenue	307	266	562	497
Medicated feed additives
Revenue from External Customer [Line Items]
Revenue	109	115	234	227
Animal health diagnostics
Revenue from External Customer [Line Items]
Revenue	69	65	129	125
Other non-pharmaceuticals
Revenue from External Customer [Line Items]
Revenue	50	41	101	81
Total products and services
Revenue from External Customer [Line Items]
Revenue	1,531	1,522	3,045	2,958
Dermatology
Revenue from External Customer [Line Items]
Revenue	227	185	424	344
Cattle
Revenue from External Customer [Line Items]
Revenue	$ 320	$ 379	$ 690	$ 759

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Acquisitions and Divestitures (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Total Restructuring charges and certain acquisition-related costs	$ 8	$ 22	$ 17	$ 27
Amortization of intangible assets	61	58	122	116
Interest expense, net of capitalized interest	$ 58	$ 55	111	111
Share-based compensation expense			32	$ 35
Goodwill, Acquired During Period			52
Contingent payment received related to sale of certain U.S. manufacturing sites			$ 20

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Acquisitions and Divestitures - Preliminary Fair Values Allocated (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($)
Business Acquisition [Line Items]
Goodwill, Acquired During Period	$ 52

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Acquisitions and Divestitures - Supplemental Pro Forma Financial Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Amortization of intangible assets	$ 61	$ 58	$ 122	$ 116
Interest expense, net of capitalized interest	$ 58	$ 55	111	111
Share-based compensation expense			$ 32	$ 35

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Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2020		Jun. 30, 2019		Jun. 30, 2020	Jun. 30, 2019		Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Total Restructuring charges and certain acquisition-related costs		$ 8		$ 22		$ 17	$ 27
Restructuring charges (reversals)						5
Restructuring Reserve [Roll Forward]
Restructuring accrual balance	[1],[2]					45
Provision						5
Utilization and other	[2],[3]					(12)
Restructuring accrual balance	[1],[2]	38				38
Other current liabilities
Restructuring Reserve [Roll Forward]
Accrued expenses		15				15			$ 23
Other Noncurrent Liabilities
Restructuring Reserve [Roll Forward]
Other noncurrent liabilities		23				23			$ 22
Employee Termination Costs
Restructuring Cost and Reserve [Line Items]
Employee termination costs	[4]	2		14		5	18
Direct Cost
Restructuring Cost and Reserve [Line Items]
Integration costs		$ 6	[5]	$ 8	[5]	$ 12	$ 9	[5]

[1] At June 30, 2020, and December 31, 2019, included in Accrued expenses ($15 million and $23 million, respectively) and Other noncurrent liabilities ($23 million and $22 million, respectively).

[2] Changes in our restructuring accrual represents employee termination costs.

[3] Includes adjustments for foreign currency translation.

[4] The restructuring charges for the three and six months ended June 30, 2020 primarily relate to CEO transition-related costs which are associated with Manufacturing/research/corporate.The restructuring charges for the three and six months ended June 30, 2019 primarily relate to the acquisition of Abaxis which are associated with Manufacturing/research/corporate.

[5] Integration costs represent external, incremental costs directly related to integrating acquired businesses and primarily include expenditures for consulting and the integration of systems and processes, as well as product transfer costs.

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Other (Income)/Deductions - Net (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Royalty-related income		$ (5)	$ (3)	$ (6)	$ (8)
Interest income		(2)	(9)	(8)	(19)
Identifiable intangible asset impairment charges		3	0	3	0
Foreign currency loss	[1]	6	7	11	7
Impairment of an equity investment		4	0	4	0
Other, net		0	(1)	(1)	0
Other (income)/deductions—net		5	(6)	(15)	(20)
Zoetis Initiatives
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (gain)/loss on sale of assets				(17)
Reconciling Items | Zoetis Initiatives
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (gain)/loss on sale of assets	[2]	$ (1)	$ 0	$ (18)	$ 0

[1] Primarily driven by costs related to hedging and exposures to certain emerging and developed market currencies.

[2] For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites. 

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Income Taxes - Taxes on Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Tax Contingency [Line Items]
Effective tax rate for income from continuing operations	22.00%	18.50%	18.40%	18.30%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	$ 1	$ 8		$ 16
Liabilities associated with uncertain tax positions	186		$ 186		$ 182
Other Taxes Payable
Income Tax Contingency [Line Items]
Liabilities associated with uncertain tax positions	184		184		$ 180
Share-based Payments
Income Tax Contingency [Line Items]
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	1	$ 2	24	$ 15
Integration of Acquired Businesses
Income Tax Contingency [Line Items]
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	$ 1		$ 7

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Income Taxes - Deferred Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Noncurrent deferred tax liabilities	$ 307	$ 346
Noncurrent deferred tax assets	88	88
Noncurrent deferred tax liabilities	$ 395	$ 434

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Income Taxes - Tax Contingencies (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Income Tax Contingency [Line Items]
Liabilities associated with uncertain tax positions	$ 186	$ 182
Unrecognized tax benefits, income tax penalties and interest accrued	13	12
Noncurrent Deferred Tax Assets
Income Tax Contingency [Line Items]
Liabilities associated with uncertain tax positions	2	2
Other Taxes Payable
Income Tax Contingency [Line Items]
Liabilities associated with uncertain tax positions	$ 184	$ 180

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Financial Instruments - Credit Facilities (Details)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 75,000,000
Line of credit facility	0	$ 0
Commercial Paper	1,500,000	$ 0
Revolving Credit Facility
Line of Credit Facility [Line Items]
Revolving credit facility, current borrowing capacity	1,000,000,000.0
Line of credit facility, maximum borrowing capacity	$ 1,500,000,000
Operational Efficiency [Member]
Line of Credit Facility [Line Items]
Maximum total leverage ratio	3.50
Maximum total leverage ratio	4.00

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Financial Instruments - Commercial Paper Program (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Feb. 28, 2013
Short-term Debt [Line Items]
Interest expense, net of capitalized interest	$ 58,000,000	$ 55,000,000	$ 111,000,000	$ 111,000,000
Line of credit facility	0		0		$ 0
Commercial Paper	$ 1,500,000		$ 1,500,000		$ 0
Commercial Paper
Short-term Debt [Line Items]
Capacity of commercial paper program						$ 1,000,000,000.0

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Financial Instruments - Senior Notes Offering and Other Long-Term Debt (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Aug. 20, 2018	Sep. 12, 2017	Nov. 13, 2015	Jan. 28, 2013
Debt Instrument [Line Items]
Commercial Paper	$ 1,500,000		$ 1,500,000		$ 0
Debt, principal amount	7,750,000,000		7,750,000,000		6,500,000,000
Current portion of long-term debt	500,000,000		500,000,000		500,000,000
Capitalized interest	4,000,000	$ 3,000,000	8,000,000	$ 6,000,000
Senior Notes
Debt Instrument [Line Items]
Debt, principal amount						$ 1,500,000,000	$ 1,250,000,000	$ 1,250,000,000	$ 3,650,000,000
Debt, unamortized discount						$ 4,000,000	$ 7,000,000	$ 2,000,000	$ 10,000,000
Debt, purchase price percent due to downgrade of investment grade									101.00%
Senior Notes | 2018 floating senior notes due 2021
Debt Instrument [Line Items]
Debt, principal amount	300,000,000		300,000,000		300,000,000
Senior Notes | 3.250% 2018 senior notes due 2021
Debt Instrument [Line Items]
Debt, principal amount	300,000,000		300,000,000		300,000,000
Senior Notes | 3.000% 2017 senior notes due 2027
Debt Instrument [Line Items]
Debt, principal amount	750,000,000		750,000,000		750,000,000
Senior Notes | 3.900% 2018 senior notes due 2028
Debt Instrument [Line Items]
Debt, principal amount	500,000,000		500,000,000		500,000,000
Senior Notes | 3.950% 2017 senior notes due 2047
Debt Instrument [Line Items]
Debt, principal amount	500,000,000		500,000,000		500,000,000
Senior Notes | 4.450% 2018 senior notes due 2048
Debt Instrument [Line Items]
Debt, principal amount	$ 400,000,000		$ 400,000,000		$ 400,000,000
Senior Notes | Senior notes due 2018
Debt Instrument [Line Items]
Interest rate percentage	3.90%		3.90%

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Financial Instruments - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Aug. 20, 2018	Sep. 12, 2017	Nov. 13, 2015	Jan. 28, 2013
Debt Instrument [Line Items]
Total long-term debt	$ 7,750		$ 7,750		$ 6,500
Unamortized debt discount / debt issuance costs	(70)		(70)		(51)
Long-term debt, net of discount and issuance costs	7,194		7,194		5,947
Interest expense, net of capitalized interest	58	$ 55	111	$ 111
Capitalized interest	4	$ 3	8	$ 6
Current portion of long-term debt	500		500		500
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	14		14		(2)
Senior Notes
Debt Instrument [Line Items]
Total long-term debt						$ 1,500	$ 1,250	$ 1,250	$ 3,650
Senior Notes | 3.450% 2015 senior notes due 2020
Debt Instrument [Line Items]
Total long-term debt	500		500		500
Senior Notes | 2018 floating senior notes due 2021
Debt Instrument [Line Items]
Total long-term debt	300		300		300
Senior Notes | 3.250% 2018 senior notes due 2021
Debt Instrument [Line Items]
Total long-term debt	$ 300		$ 300		300
Senior Notes | 3.250% 2013 senior notes due 2023
Debt Instrument [Line Items]
Interest rate percentage	3.25%		3.25%
Total long-term debt	$ 1,350		$ 1,350		1,350
Senior Notes | 4.500% 2015 senior notes due 2025
Debt Instrument [Line Items]
Total long-term debt	750		750		750
Senior Notes | 3.000% 2017 senior notes due 2027
Debt Instrument [Line Items]
Total long-term debt	750		750		750
Senior Notes | 3.900% 2018 senior notes due 2028
Debt Instrument [Line Items]
Total long-term debt	500		500		500
Senior Notes | 4.700% 2013 senior notes due 2043
Debt Instrument [Line Items]
Total long-term debt	1,150		1,150		1,150
Senior Notes | 3.950% 2017 senior notes due 2047
Debt Instrument [Line Items]
Total long-term debt	500		500		500
Senior Notes | 4.450% 2018 senior notes due 2048
Debt Instrument [Line Items]
Total long-term debt	400		400		400
Senior Notes | Senior notes 2.000% due 2030
Debt Instrument [Line Items]
Total long-term debt	750		750		0
Senior Notes | Senior Notes 3.000% due 2050
Debt Instrument [Line Items]
Total long-term debt	$ 500		$ 500		$ 0

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Financial Instruments - Fair Value of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Senior Notes | Fair Value, Inputs, Level 2
Debt Instrument [Line Items]
Fair value, debt instrument	$ 8,326	$ 6,587

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Financial Instruments - Long-term Debt Maturity (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Aug. 20, 2018	Sep. 12, 2017	Nov. 13, 2015	Jan. 28, 2013
Debt Instrument [Line Items]
Current portion of long-term debt	$ 500		$ 500		$ 500
2020	500		500
2021	600		600
2022	0		0
2023	1,350		1,350
2024	0		0
After 2024	5,300		5,300
Total long-term debt	7,750		7,750		$ 6,500
Interest expense, net of capitalized interest	58	$ 55	111	$ 111
Capitalized interest	$ 4	$ 3	$ 8	$ 6
Senior Notes
Debt Instrument [Line Items]
Total long-term debt						$ 1,500	$ 1,250	$ 1,250	$ 3,650

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Financial Instruments - Foreign Exchange Risk (Details) € in Millions, kr in Millions, SFr in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2020 EUR (€)	Jun. 30, 2020 CHF (SFr)	Jun. 30, 2020 DKK (kr)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 CHF (SFr)	Dec. 31, 2019 DKK (kr)
Senior Notes | Senior notes due 2018
Derivative [Line Items]
Interest rate percentage	3.90%	3.90%	3.90%	3.90%
Cross-currency interest rate swap contracts
Derivative [Line Items]
Derivative notional amount	$ 150	€ 650	SFr 25	kr 600	$ 150	€ 650	SFr 25	kr 600
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contract
Derivative [Line Items]
Derivative notional amount	$ 1,550				$ 1,364
Maturity period (in days)	60 days
Derivatives Not Designated as Hedging Instruments | Maximum | Foreign Exchange Contract
Derivative [Line Items]
Maturity period (in days)	1 year

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Financial Instruments - Fair Value of Derivative Instruments (Details) € in Millions, kr in Millions, SFr in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 EUR (€)	Jun. 30, 2020 CHF (SFr)	Jun. 30, 2020 DKK (kr)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 CHF (SFr)	Dec. 31, 2019 DKK (kr)
Derivatives, Fair Value [Line Items]
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax			$ 3	$ 4
Other noncurrent liabilities	$ 271		271					$ 229
Other current liabilities	65		65					55
Other noncurrent assets	92		92					98
Total derivatives	9		9					25
Collateral received	25		25
Cash flow hedges gain expected to be reclassified from AOCI into earnings over the next 12 months			1
Foreign currency forward-exchange contracts | Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Foreign currency forward-exchange contracts	4	$ 8	10	4
Derivative notional amount	1,550		1,550					1,364
Total derivatives	(1)		(1)					2
Foreign currency forward-exchange contracts | Derivatives Not Designated as Hedging Instruments | Other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	18		18					7
Foreign currency forward-exchange contracts | Derivatives Not Designated as Hedging Instruments | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	(19)		(19)					(5)
Cross-currency interest rate swap contracts
Derivatives, Fair Value [Line Items]
Derivative notional amount	150		150		€ 650	SFr 25	kr 600	150	€ 650	SFr 25	kr 600
Cross-currency interest rate swap contracts | Derivatives Designated as Hedging Instruments:
Derivatives, Fair Value [Line Items]
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax	(14)	(4)	3	14
Gain (Loss) on Components Excluded from Assessment of Interest Rate Fair Value Hedge Effectiveness	4	4	10	8
Total derivatives	10		10					23
Cross-currency interest rate swap contracts | Derivatives Designated as Hedging Instruments: | Other current assets
Derivatives, Fair Value [Line Items]
Total derivatives	9		9					4
Cross-currency interest rate swap contracts | Derivatives Designated as Hedging Instruments: | Other current liabilities
Derivatives, Fair Value [Line Items]
Total derivatives	(5)		(5)					(3)
Cross-currency interest rate swap contracts | Derivatives Designated as Hedging Instruments: | Other noncurrent assets
Derivatives, Fair Value [Line Items]
Total derivatives	24		24					20
zts_FixedtoFloatInterestRateSwap | Derivatives Designated as Hedging Instruments: | Other noncurrent assets
Derivatives, Fair Value [Line Items]
Derivative assets	14		14					0
zts_FixedtoFloatInterestRateSwap | Derivatives Designated as Hedging Instruments: | Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Derivative assets	0		0					(2)
zts_ForwardStartingInterestRateSwap | Derivatives Designated as Hedging Instruments:
Derivatives, Fair Value [Line Items]
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax	0	$ 0	(27)	$ 0
zts_ForwardStartingInterestRateSwap | Derivatives Designated as Hedging Instruments: | Other noncurrent assets
Derivatives, Fair Value [Line Items]
Derivative assets	0		0					5
zts_ForwardStartingInterestRateSwap | Derivatives Designated as Hedging Instruments: | Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Derivative assets	$ (32)		$ (32)					$ (1)

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Financial Instruments - Interest Rate Risk (Details) € in Millions, kr in Millions, SFr in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) numberOfDerivatives	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) numberOfDerivatives	Jun. 30, 2019 USD ($)	Jun. 30, 2020 EUR (€) numberOfDerivatives	Jun. 30, 2020 CHF (SFr) numberOfDerivatives	Jun. 30, 2020 DKK (kr) numberOfDerivatives	Dec. 31, 2019 USD ($) swap	Dec. 31, 2019 EUR (€) swap	Dec. 31, 2019 CHF (SFr) swap	Dec. 31, 2019 DKK (kr) swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Payment for settlement			$ 6,000,000	$ 0
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax			3,000,000	4,000,000
Cross-currency interest rate swap contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative notional amount	$ 150,000,000		150,000,000		€ 650	SFr 25	kr 600	$ 150,000,000	€ 650	SFr 25	kr 600
Derivatives Not Designated as Hedging Instruments | Foreign currency forward-exchange contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative notional amount	1,550,000,000		1,550,000,000					$ 1,364,000,000
Foreign currency forward-exchange contracts	4,000,000	$ 8,000,000	10,000,000	4,000,000
Derivatives Designated as Hedging Instruments: | Cross-currency interest rate swap contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax	$ (14,000,000)	$ (4,000,000)	$ 3,000,000	$ 14,000,000
Derivatives Designated as Hedging Instruments: | Interest rate swaps
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments	450,000,000		450,000,000					0	0	0	0
Derivatives Designated as Hedging Instruments: | Treasury locks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative notional amount	$ 600,000,000		$ 600,000,000
Payment for settlement	6,000,000
Senior notes 2.000% due 2030 | Derivatives Designated as Hedging Instruments: | Treasury locks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative notional amount	$ 425,000,000		$ 425,000,000
Number of derivative instruments | numberOfDerivatives	4		4		4	4	4
Senior Notes 3.000% due 2050 | Derivatives Designated as Hedging Instruments: | Treasury locks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative notional amount	$ 175,000,000		$ 175,000,000
Number of derivative instruments | numberOfDerivatives	2		2		2	2	2
Senior Notes | Senior notes due 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate percentage	3.90%		3.90%		3.90%	3.90%	3.90%
Senior Notes | 3.250% 2013 senior notes due 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate percentage	3.25%		3.25%		3.25%	3.25%	3.25%

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Financial Instruments Cross-currency forward-exchange contracts (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Foreign Currency Fair Value Hedge Derivative [Line Items]
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax	$ 3	$ 4

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Financial Instruments Cross-currency interest rate swap contracts (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cross-currency interest rate swap contracts | Derivatives Designated as Hedging Instruments:
Foreign Currency Fair Value Hedge Derivative [Line Items]
Gain (Loss) on Components Excluded from Assessment of Interest Rate Fair Value Hedge Effectiveness	$ 4	$ 4	$ 10	$ 8

XML

Financial Instruments Derivative Notional Amounts (Details) € in Millions, kr in Millions, SFr in Millions, $ in Millions	Jun. 30, 2020 USD ($)	Jun. 30, 2020 EUR (€)	Jun. 30, 2020 CHF (SFr)	Jun. 30, 2020 DKK (kr)	Dec. 31, 2019 USD ($) swap	Dec. 31, 2019 EUR (€) swap	Dec. 31, 2019 CHF (SFr) swap	Dec. 31, 2019 DKK (kr) swap
Cross-currency interest rate swap contracts
Derivative [Line Items]
Derivative notional amount	$ 150	€ 650	SFr 25	kr 600	$ 150	€ 650	SFr 25	kr 600
Derivatives Not Designated as Hedging Instruments | Foreign Exchange Contract
Derivative [Line Items]
Derivative notional amount	$ 1,550				$ 1,364
Derivatives Designated as Hedging Instruments: | Interest rate swaps
Derivative [Line Items]
Derivative, Number of Instruments Held	450				0	0	0	0

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Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Finished goods	$ 790	$ 701
Work-in-process	570	511
Raw materials and supplies	224	198
Inventories	$ 1,584	$ 1,410

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Goodwill and Other Intangible Assets - Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 2,592
Goodwill, Acquired During Period	52
Other	(15)	[1]
Ending Balance	2,629
United States (U.S.)
Goodwill [Roll Forward]
Beginning Balance	1,367
Goodwill, Acquired During Period	52
Other	0	[1]
Ending Balance	1,419
International
Goodwill [Roll Forward]
Beginning Balance	1,225
Goodwill, Acquired During Period	0
Other	(15)	[1]
Ending Balance	$ 1,210

[1] Includes adjustments for foreign currency translation.

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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Gross goodwill	$ 3,165		$ 3,165		$ 3,128
Accumulated goodwill impairment losses	536		536		$ 536
Amortization of intangible assets	$ 61	$ 58	$ 122	$ 116

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Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 2,823		$ 2,823		$ 2,803
Finite-lived intangible assets, accumulated amortization	(1,238)		(1,238)		(1,129)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	1,585		1,585		1,674
Total indefinite-lived intangible assets	198		198		216
Intangible Assets, gross carrying amount	3,021		3,021		3,019
Identifiable intangible assets, less accumulated amortization	1,783		1,783		1,890
Amortization of intangible assets	61	$ 58	122	$ 116
Trademarks and Trade Names
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets	104		104		104
In Process Research and Development
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets	87		87		105
Product Rights
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets	7		7		7
Developed Technology Rights
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	1,941		1,941		1,938
Finite-lived intangible assets, accumulated amortization	(722)		(722)		(657)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	1,219		1,219		1,281
Brands
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	196		196		201
Trademarks and Trade Names
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	429		429		424
Finite-lived intangible assets, accumulated amortization	(233)		(233)		(223)
Other Intangible Assets
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	453		453		441
Finite-lived intangible assets, accumulated amortization	(283)		(283)		(249)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	$ 170		$ 170		$ 192

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Share-Based Payments - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, options granted, shares			292,727
Share-based compensation, weighted average exercise price (in dollars per share)			$ 143.23
Share-based compensation, Options, weighted average grant date fair value (in dollars per share)			$ 33.83
Share-based compensation, risk free interest rate			1.46%
Share-based compensation, expected dividend rate			0.55%
Share-based compensation, expected volatility rate			24.22%
Share-based compensation, expected term			5 years 6 months
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax			$ 3	$ 4
zts_ForwardStartingInterestRateSwap | Derivatives Designated as Hedging Instruments:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized net gains/(losses) on cross-currency interest rate swap contracts, recorded, net of tax	$ 0	$ 0	$ (27)	$ 0
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, award vesting period			3 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, award vesting period			3 years
Share-based compensation, granted, shares			231,245
Share-based compensation, weighted average grant date fair value (in dollars per share)			$ 143.69
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, expected volatility rate			20.20%
Share-based compensation, award vesting period			3 years
Share-based compensation, granted, shares			85,279
Share-based compensation, weighted average grant date fair value (in dollars per share)			$ 217.49
Performance Shares | PeerCompanies
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, expected volatility rate			24.80%
Performance Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, target number of units percentage			0.00%
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, target number of units percentage			200.00%

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Share-Based Payments - Components of Share-Based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct	$ 16	$ 17	$ 32	$ 35
Stock options / stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct	2	2	5	5
RSUs / DSUs(a)(b)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct	9	12	17	24
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct	$ 5	3	$ 10	6
Abaxis Inc
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		4		9
Share-based Payment Arrangement, Accelerated Cost		$ 2		$ 4

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Stockholders' Equity - Changes in Common Shares and Treasury Stock (Details) - USD ($) $ in Billions		3 Months Ended			6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019		Jun. 30, 2020	Jun. 30, 2019		Dec. 31, 2019
Class of Stock [Line Items]
Common stock, shares authorized		6,000,000,000			6,000,000,000			6,000,000,000
Preferred stock, shares authorized		1,000,000,000			1,000,000,000			1,000,000,000
Stock repurchase program, remaining authorized repurchase amount		$ 1.4			$ 1.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued, shares		501,900,000	501,900,000		501,891,243	501,900,000
Treasury stock, shares					26,363,033	22,300,000	[1]
Treasury stock acquired, shares	[1],[2]					(3,100,000)
Common stock issued, shares		501,891,243	501,900,000		501,891,243	501,900,000
Treasury stock, shares		26,891,765	24,100,000	[1]	26,891,765	24,100,000	[1]
Share Repurchase Program
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares	[1],[3]					(1,400,000)
December 2018 Share Repurchase Program [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized amount								$ 2.0

[1] Shares may not add due to rounding.

[2] Reflects the acquisition of treasury shares in connection with the share repurchase program. For additional information see Note 13. Stockholders' Equity.

[3] Includes the issuance of shares of Zoetis Inc. common stock and the reacquisition of shares of treasury stock associated with exercises of employee share-based awards. Also includes the reacquisition of shares of treasury stock associated with the vesting of employee share-based awards to satisfy tax withholding requirements. For additional information, see Note 12. Share-based Payments and Note 13. Stockholders' Equity.

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Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 2,753	$ 2,317	$ 2,708	$ 2,185
Other comprehensive (loss)/income, net of tax	(75)	(71)	(130)	(40)
Ending balance	2,987	2,411	2,987	2,411
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(781)	(598)	(726)	(629)
Other comprehensive (loss)/income, net of tax	(75)	(71)	(130)	(40)
Ending balance	(856)	(669)	(856)	(669)
Derivatives Net Unrealized Gains/ (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			0	(4)
Other comprehensive (loss)/income, net of tax			(32)	1
Ending balance	(32)	(3)	(32)	(3)
Net Investment Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			21	10
Other comprehensive (loss)/income, net of tax			3	4
Ending balance	24	14	24	14
Currency Translation Adjustment Net Unrealized Gain/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(724)	(621)
Other comprehensive (loss)/income, net of tax			(101)	(45)
Ending balance	(825)	(666)	(825)	(666)
Benefit Plans Actuarial Gains/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(23)	(14)
Other comprehensive (loss)/income, net of tax			0	0
Ending balance	$ (23)	$ (14)	$ (23)	$ (14)

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Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator
Net income before allocation to noncontrolling interests	$ 376	$ 371	$ 799	$ 683
Less: Net loss attributable to noncontrolling interests	(1)	0	(1)	0
Net income attributable to Zoetis Inc.	$ 377	$ 371	$ 800	$ 683
Denominator
Weighted-average common shares outstanding	475,300	478,800	475,400	479,200
Common stock equivalents: stock options, RSUs, PSUs and DSUs	2,800	3,500	3,200	3,500
Weighted-average common and potential dilutive shares outstanding	478,100	482,300	478,600	482,700
Earnings per share attributable to Zoetis stockholders—basic (in dollars per share)	$ 0.79	$ 0.77	$ 1.68	$ 1.43
Earnings per share attributable to Zoetis stockholders—diluted (in dollars per share)	$ 0.79	$ 0.77	$ 1.67	$ 1.41
Antidilutive securities excluded from computation of earnings per share, amount	0		0

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Commitments and Contingencies (Details) € in Millions, $ in Millions			1 Months Ended		6 Months Ended
	May 16, 2016 producer	Jun. 03, 2015 count	Aug. 31, 2014 animal	Apr. 30, 2012	Jun. 30, 2020 customer	Jun. 19, 2013 EUR (€)	Jun. 19, 2013 USD ($)	Feb. 29, 2012 defendant
Ulianopolis, Brazil
Loss Contingencies [Line Items]
Number of additional defendants | defendant								5
Number of claims seeking damages | defendant								6
Duration of suspension of lawsuit				1 year
Lasadoil
Loss Contingencies [Line Items]
Number of deaths from contamination of animal feed | animal			50,000
Number of contaminated animal from contamination of animal feed | animal			20,000
Number of complaints	2	1			3
European Commission
Loss Contingencies [Line Items]
Amount reimbursed by Pfizer						€ 11	$ 14

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Segment Information (Details)	6 Months Ended
	Jun. 30, 2020 segment
Segment Reporting [Abstract]
Number of operating segments	2

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Segment Information Selected Statement of Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenue	$ 1,548	$ 1,547	$ 3,082		$ 3,002
Cost of Sales	451	465	910		983
Other (income)/deductions—net	5	(6)	(15)		(20)
Income before provision for taxes on income	482	455	979	[1]	836	[1]
Depreciation and amortization	111	98	221		196	[1],[2]
Other business activities
Segment Reporting Information [Line Items]
Income before provision for taxes on income	(90)	(79)	(177)		(159)
Depreciation and amortization	7	6	13	[2]	11	[2]
Operating Segments
Segment Reporting Information [Line Items]
Income before provision for taxes on income	892	873	1,764		1,710
Depreciation and amortization	24	21	51	[2]	44	[2]
Operating Segments | U.S.
Segment Reporting Information [Line Items]
Revenue	823	780	1,609		1,498
Cost of Sales	154	158	321		305
Gross Profit	$ 669	$ 622	$ 1,288		$ 1,193
Gross margin, percentage	81.30%	79.70%	80.10%		79.60%
Operating Expenses	$ 136	$ 127	$ 261		$ 237
Other (income)/deductions—net	3	0	4		0
Income before provision for taxes on income	530	495	1,023		956
Depreciation and amortization	12	9	25	[2]	19	[2]
Operating Segments | International
Segment Reporting Information [Line Items]
Revenue	708	742	1,436	[3]	1,460	[3]
Cost of Sales	228	218	452		428
Gross Profit	$ 480	$ 524	$ 984		$ 1,032
Gross margin, percentage	67.80%	70.60%	68.50%		70.70%
Operating Expenses	$ 117	$ 146	$ 242		$ 278
Other (income)/deductions—net	1	0	1		0
Income before provision for taxes on income	362	378	741		754
Depreciation and amortization	12	12	26	[2]	25	[2]
Corporate
Segment Reporting Information [Line Items]
Income before provision for taxes on income	(179)	(178)	(352)		(340)
Depreciation and amortization	26	16	48	[2]	30	[2]
Reconciling Items
Segment Reporting Information [Line Items]
Depreciation and amortization	0	0	0	[2]	0	[2]
Purchase accounting adjustments, Earnings	(53)	(58)	(107)		(124)
Purchase accounting adjustments, Depreciation and Amortization	53	55	107	[2]	110	[2]
Acquisition-related costs	(7)	(22)	(14)		(27)
Certain significant items, Earnings	(6)	(3)	5	[4]	(73)	[4]
Certain significant items, Depreciation and Amortization	0	0	0	[2],[4]	0	[2],[4]
Other unallocated, Earnings	(75)	(78)	(140)		(151)
Other Unallocated, Depreciation and Amortization	$ 1	$ 0	$ 2	[2]	$ 1	[2]

[1] Defined as income before provision for taxes on income.

[2] Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

[3] Revenue denominated in euros was $331 million and $365 million for the six months ended June 30, 2020 and June 30, 2019, respectively.

[4] For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites of $17 million, partially offset by CEO transition-related costs of $9 million. For the six months ended June 30, 2019, primarily represents a change in estimate related to inventory costing of $68 million, and product transfer costs and consulting fees of $5 million related to our supply network strategy. 

XML

Segment Information Selected Statement of Income Narrative (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenue		$ 1,548	$ 1,547	$ 3,082		$ 3,002
Contingent payment received related to sale of certain U.S. manufacturing sites				20
Provision				5
International | Operating Segments
Segment Reporting Information [Line Items]
Revenue		708	742	1,436	[1]	1,460	[1]
International | Operating Segments | Euro Member Countries, Euro
Segment Reporting Information [Line Items]
Revenue				331		365
Zoetis Initiatives
Segment Reporting Information [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal				(17)
Zoetis Initiatives | Reconciling Items
Segment Reporting Information [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	[2]	(1)	0	(18)		0
CEO Transition Costs
Segment Reporting Information [Line Items]
Restructuring and Other Cost Productivity Charges				9
CHINA
Segment Reporting Information [Line Items]
Revenue		66	56	132		116
Employee Termination Costs
Segment Reporting Information [Line Items]
Employee termination costs	[3]	$ (2)	$ (14)	$ (5)		$ (18)

[1] Revenue denominated in euros was $331 million and $365 million for the six months ended June 30, 2020 and June 30, 2019, respectively.

[2] For the six months ended June 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites. 

[3] The restructuring charges for the three and six months ended June 30, 2020 primarily relate to CEO transition-related costs which are associated with Manufacturing/research/corporate.The restructuring charges for the three and six months ended June 30, 2019 primarily relate to the acquisition of Abaxis which are associated with Manufacturing/research/corporate.

XML

Label	Element	Value
Dividends Payable	us-gaap_DividendsPayableCurrentAndNoncurrent	$ 78,000,000