International Flavors & Fragrances (IFF) 10-K 3 Mar 20 2019 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2019	Feb. 26, 2020	Jun. 30, 2019
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	1-4858
Entity Registrant Name	INTERNATIONAL FLAVORS & FRAGRANCES INC
Entity Central Index Key	0000051253
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	13-1432060
Entity Address, Address Line One	521 West 57th Stree
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10019-2960
City Area Code	212
Local Phone Number	765-5500
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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 Public Float			$ 15,491,883,187
Entity Common Stock, Shares Outstanding		106,802,194
Documents Incorporated by Reference	Portions of the registrant’s proxy statement for the 2020 Annual Meeting of Shareholders (the “IFF 2020 Proxy Statement”) are incorporated by reference in Part III of this Form 10-K.
Common stock [Member]
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value 12 1/2¢ per share
Trading Symbol	IFF
Security Exchange Name	NYSE
6.00% Tangible Equity Units [Member]
Entity Information [Line Items]
Title of 12(b) Security	6.00% Tangible Equity Units
Trading Symbol	IFFT
Security Exchange Name	NYSE
0.500% Senior Notes Due 2021 [Member]
Entity Information [Line Items]
Title of 12(b) Security	0.500% Senior Notes due 2021
Trading Symbol	IFF 21
Security Exchange Name	NYSE
1.750% Senior Notes Due 2024 [Member]
Entity Information [Line Items]
Title of 12(b) Security	1.750% Senior Notes due 2024
Trading Symbol	IFF 24
Security Exchange Name	NYSE
1.800% Senior Notes Due 2026 [Member]
Entity Information [Line Items]
Title of 12(b) Security	1.800% Senior Notes due 2026
Trading Symbol	IFF 26
Security Exchange Name	NYSE

CONSOLIDATED STATEMENT OF INCOM

CONSOLIDATED STATEMENT OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net sales	$ 5,140,084	$ 3,977,539	$ 3,398,719
Cost of goods sold	3,027,336	2,294,832	1,926,256
Gross profit	2,112,748	1,682,707	1,472,463
Research and development expenses	346,128	311,583	295,469
Selling and administrative expenses	876,121	707,461	570,144
Restructuring and other charges, net	29,765	5,079	19,711
Amortization of acquisition-related intangibles	193,097	75,879	34,693
Losses (gains) on sale of assets	2,367	(1,177)	(184)
Operating profit	665,270	583,882	552,630
Interest expense	138,221	132,558	65,363
Loss on extinguishment of debt	0	38,810	0
Other income, net	(30,403)	(35,243)	(49,778)
Income before taxes	557,452	447,757	537,045
Taxes on income	97,184	107,976	241,380
Net income	460,268	339,781	295,665
Net income attributable to noncontrolling interests	4,395	2,479	0
Net income available to IFF common shareholders	455,873	337,302	295,665
Other comprehensive income:
Foreign currency translation adjustments	23,953	(99,580)	54,609
Gains (losses) on derivatives qualifying as hedges	(2,678)
Gains (losses) on derivatives qualifying as hedges		15,078	(17,936)
Pension and postretirement liability adjustment	(35,942)	19,757	5,940
Comprehensive income attributable to IFF stockholders	$ 441,206	$ 272,557	$ 338,278
Net income per share - basic (in dollars per share)	$ 4.05	$ 3.81	$ 3.73
Net income per share - diluted (in dollars per share)	$ 4	$ 3.79	$ 3.72
Average number of shares outstanding - basic (in shares)	111,966	87,551	79,070
Average number of shares outstanding - diluted (in shares)	113,307	88,121	79,370

CONSOLIDATED BALANCE SHEET

CONSOLIDATED BALANCE SHEET - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 606,823,000	$ 634,897,000
Restricted cash	17,122,000	13,625,000
Receivables:
Trade	884,428,000	946,938,000
Allowance for doubtful accounts	(8,231,000)	(9,173,000)
Inventories	1,123,068,000	1,078,537,000
Prepaid expenses and other current assets	319,334,000	277,036,000
Total Current Assets	2,942,544,000	2,941,860,000
Property, plant and equipment, net	1,386,920,000	1,241,152,000
Goodwill	5,497,596,000	5,378,388,000
Other intangible assets, net	2,851,935,000	3,039,322,000
Other assets	608,416,000	288,673,000
Total Assets	13,287,411,000	12,889,395,000
Current Liabilities:
Bank borrowings, overdrafts and current portion of long-term debt	384,958,000	48,642,000
Accounts payable	510,372,000	471,382,000
Dividends payable	80,038,000	77,779,000
Other current liabilities	576,822,000	530,508,000
Total Current Liabilities	1,552,190,000	1,128,311,000
Other Liabilities:
Long-term debt	3,997,438,000	4,504,417,000
Retirement liabilities	265,370,000	227,172,000
Deferred income taxes	641,456,000	655,879,000
Other liabilities	502,366,000	248,436,000
Total Other Liabilities	5,406,630,000	5,635,904,000
Commitments and Contingencies (Note 21)
Redeemable noncontrolling interests	99,043,000	81,806,000
Shareholders’ Equity:
Common stock 12 1/2¢ par value; 500,000,000 shares authorized; 128,526,137 and 128,526,137 shares issued as of December 31, 2019 and December 31, 2018, respectively; and 106,787,299 and 106,619,202 shares outstanding as of December 31, 2019 and December 31, 2018, respectively	16,066,000	16,066,000
Capital in excess of par value	3,823,152,000	3,793,609,000
Retained earnings	4,117,804,000	3,956,221,000
Accumulated other comprehensive loss:
Cumulative translation adjustments	(373,043,000)	(396,996,000)
Accumulated gains on derivatives qualifying as hedges	2,068,000	4,746,000
Pension and postretirement liability adjustment	(345,919,000)	(309,977,000)
Treasury stock, at cost (21,738,838 and 21,906,935 shares as of December 31, 2019 and December 31, 2018, respectively)	(1,022,824,000)	(1,030,718,000)
Total Shareholders’ Equity	6,217,304,000	6,032,951,000
Noncontrolling interests	12,244,000	10,423,000
Total Shareholders’ Equity including noncontrolling interests	6,229,548,000	6,043,374,000
Total Liabilities and Shareholders’ Equity	$ 13,287,411,000	$ 12,889,395,000

CONSOLIDATED BALANCE SHEET (Par

CONSOLIDATED BALANCE SHEET (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.125	$ 0.125
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	128,526,137	128,526,137
Common stock, shares outstanding	106,787,299	106,619,202
Treasury stock, shares at cost	21,738,838	21,906,935

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 460,268	$ 339,781	$ 295,665
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	323,330	173,792	117,967
Deferred income taxes	(59,279)	19,402	58,889
Losses (gains) on sale of assets	2,367	(1,177)	(184)
Stock-based compensation	34,482	29,401	26,567
Loss on extinguishment of debt	0	38,810	0
Gain on deal contingent derivatives	0	(12,505)	0
Pension contributions	(23,714)	(22,433)	(39,298)
Litigation settlement	0	0	(56,000)
Foreign currency gain on liquidation of entity	0	0	(12,217)
Changes in assets and liabilities, net of acquisitions:
Changes in assets and liabilities, net of acquisitions:	59,555	(49,958)	(68,851)
Trade receivables	(62,129)	(117,641)	(18,911)
Inventories	55,464	55,136	29,114
Accounts payable	(22,357)	(2,289)	19,144
Accruals for incentive compensation	5,488	(5,279)	22,679
Other assets	(66,650)	(19,219)	(3,866)
Other liabilities	(7,860)	11,754	20,058
Net cash provided by operating activities	698,965	437,575	390,756
Cash flows from investing activities:
Cash paid for acquisitions, net of cash received	(49,065)	(4,857,343)	(192,328)
Additions to property, plant and equipment	(235,978)	(170,094)	(128,973)
Additions to intangible assets	(6,070)	(3,326)	0
Proceeds from disposal of assets	42,112	8,176	16,139
Proceeds from disposal of subsidiaries, net of cash held	0	10,157	0
Proceeds from unwinding of cross currency swap derivative instruments	25,900	0	0
Contingent consideration paid	(4,655)	0	0
Maturity of net investment hedges	0	(2,642)	1,434
Proceeds from life insurance contracts	1,890	1,837	3,798
Net cash used in investing activities	(225,866)	(5,013,235)	(299,930)
Cash flows from financing activities:
Cash dividends paid to shareholders	(313,510)	(230,218)	(206,118)
Decrease in revolving credit facility and short term borrowing	(1,021)	(927)	(4,499)
Deferred financing costs	0	(33,668)	(5,373)
Repayments of debt	(155,261)	(376,625)	(250,000)
Proceeds from issuance of long-term debt	0	(3,256,742)	(498,250)
Proceeds from sales of equity securities, net of issuance costs	0	2,268,094	0
Contingent consideration paid	(24,478)	0	0
Gain (loss) on pre-issuance hedges	0	12,505	(5,310)
Proceeds from issuance of stock in connection with stock plans	0	0	329
Employee withholding taxes paid	(10,787)	(9,725)	(11,768)
Purchase of treasury stock	0	(15,475)	(58,069)
Net cash (used in) provided by financing activities	(505,057)	4,870,703	(42,558)
Effect of exchange rate changes on cash and cash equivalents	7,381	(14,567)	(4,214)
Net change in cash, cash equivalents and restricted cash	(24,577)	280,476	44,054
Cash, cash equivalents and restricted cash at beginning of year	648,522	368,046	323,992
Cash, cash equivalents and restricted cash at end of year	623,945	648,522	368,046
Cash paid for:
Interest, net of amounts capitalized	133,739	117,581	55,440
Income taxes	126,172	116,138	107,390
Noncash investing activities:
Accrued capital expenditures	$ 39,466	$ 33,844	$ 37,556

CONSOLIDATED STATEMENT OF SHARE

CONSOLIDATED STATEMENT OF SHAREHOLDERS EQUITY - USD ($) $ in Thousands	Total	Common stock [Member]	Capital in excess of par value [Member]	Retained earnings [Member]	Accumulated other comprehensive (loss) income [Member]	Treasury stock [Member]	Non-controlling interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative adjustment	$ (33,719)
Cumulative adjustment | Accounting Standards Update 2016-16 [Member]				$ (33,719)
Beginning Balance at Dec. 31, 2016	1,631,134	$ 14,470	$ 152,481	3,818,535	$ (680,095)	$ (1,679,147)	$ 4,890
Beginning Balance, shares at Dec. 31, 2016						(36,645,153)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	295,867			295,665			202
Cumulative translation adjustment	54,609				54,609
Gains (losses) on derivatives qualifying as hedges; net of tax	(17,936)				(17,936)
Pension liability and postretirement adjustment; net of tax	5,940				5,940
Cash dividends declared	(209,860)			(209,860)
Stock options	5,766		4,558			$ 1,208
Stock options, shares						24,423
Treasury share repurchases, shares						(459,264)
Treasury share repurchases, value	(58,069)					$ (58,069)
Vested restricted stock units and awards, value	(11,005)		(20,779)			$ 9,774
Vested restricted stock units and awards, shares						169,185
Stock-based compensation, value	26,567		26,567
Ending Balance at Dec. 31, 2017	1,689,294	14,470	162,827	3,870,621	(637,482)	$ (1,726,234)	5,092
Ending Balance, shares at Dec. 31, 2017						(36,910,809)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative adjustment | Accounting Standards Update 2016-16 [Member]	2,068			2,068
Net income	339,706			337,302			2,404
Cumulative translation adjustment	(99,580)				(99,580)
Gains (losses) on derivatives qualifying as hedges; net of tax	15,078				15,078
Pension liability and postretirement adjustment; net of tax	19,757				19,757
Cash dividends declared	(253,577)			(253,577)
Stock options	4,340		2,152			$ 2,188
Stock options, shares						46,474
Impact of Frutarom acquisition	2,051,040		1,346,229			$ 701,111	3,700
Impact of Frutarom acquisition, shares						14,901,445
Treasury share repurchases, shares						(108,109)
Treasury share repurchases, value	(15,475)					$ (15,475)
Vested restricted stock units and awards, value	(2,958)		(10,650)			$ 7,692
Vested restricted stock units and awards, shares						164,064
Stock-based compensation, value	29,401		29,401
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(966)			(193)			(773)
Issuance of equity	2,268,094	1,596	2,266,498
Redeemable NCI	(2,848)		(2,848)
Ending Balance at Dec. 31, 2018	$ 6,043,374	16,066	3,793,609	3,956,221	(702,227)	$ (1,030,718)	10,423
Ending Balance, shares at Dec. 31, 2018	(21,906,935)					(21,906,935)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative adjustment | Accounting Standards Update 2016-02 [Member]	$ 23,094			23,094
Cumulative adjustment | Accounting Standards Update 2017-12 [Member]	0			(981)	981
Net income	459,602			455,873			3,729
Cumulative translation adjustment	22,972				22,972
Gains (losses) on derivatives qualifying as hedges, net of tax	(2,678)				(2,678)
Cumulative translation adjustment	23,953
Pension liability and postretirement adjustment; net of tax	(35,942)				(35,942)
Cash dividends declared	(315,770)			(315,770)
Stock options	7,643		6,966			$ 677
Stock options, shares						14,346
Vested restricted stock units and awards, value	(2,591)		(9,808)			$ 7,217
Vested restricted stock units and awards, shares						153,751
Stock-based compensation, value	34,482		34,482
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(2,541)			(633)			(1,908)
Redeemable NCI	(2,097)		(2,097)
Ending Balance at Dec. 31, 2019	$ 6,229,548	$ 16,066	$ 3,823,152	$ 4,117,804	$ (716,894)	$ (1,022,824)	$ 12,244
Ending Balance, shares at Dec. 31, 2019	(21,738,838)					21,738,838

CONSOLIDATED STATEMENT OF SHA_2

CONSOLIDATED STATEMENT OF SHAREHOLDERS EQUITY (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]
Tax effect of gain (losses) on derivatives qualifying as hedges	$ (505)	$ 2,011	$ 2,017
Tax effect of pension liability and postretirement adjustment	$ (7,559)	$ (5,052)	$ (1,583)
Cash dividends declared, per share	$ 2.96	$ 2.84	$ 2.66

Nature of Operations and Summar

Nature of Operations and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations and Summary of Significant Accounting Policies	NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations International Flavors & Fragrances Inc. and its subsidiaries (the “Registrant,” “IFF,” “the Company,” “we,” “us” and “our”) is a leading creator and manufacturer of taste, scent and complementary adjacent products, including cosmetic active and natural health ingredients, which are used in a wide variety of consumer products. Our products are sold principally to manufacturers of perfumes and cosmetics, hair and other personal care products, soaps and detergents, cleaning products, dairy, meat and other processed foods, beverages, snacks and savory foods, sweet and baked goods, dietary supplements, infant and elderly nutrition, functional food, and pharmaceutical and oral care products. Fiscal Year End The Company has historically operated on a 52/53 week fiscal year generally ending on the Friday closest to the last day of the year. For ease of presentation, December 31 is used consistently throughout the financial statements and notes to represent the period-end date. The 2019 fiscal year was a 53 week period, and 2018 and 2017 fiscal years were 52 week periods. For the 2019 , 2018 and 2017 fiscal years, the actual closing dates were January 3 , December 28 , and December 29 , respectively. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts and accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions the Company may undertake in the future. Actual results may ultimately differ from estimates. Principles of Consolidation The consolidated financial statements include the accounts of International Flavors & Fragrances Inc. and those of its subsidiaries. Significant intercompany balances and transactions have been eliminated. To the extent a subsidiary is not wholly owned, any related noncontrolling interests are included as a separate component of Shareholders’ Equity. Revenue Recognition Revenue from contracts with customers is recognized when the contract or purchase order has received approval and commitment from both parties, has the rights of the parties and payment terms (which can vary by customer) identified, has commercial substance, and collectability of consideration is probable. For the Company's Flavors, Fragrances Compounds and Frutarom products, revenue is recognized for the majority of contracts when the Company satisfies its performance obligation by transferring control of the goods to the customer. Revenue is recognized over time for a small number of contracts, and the amount of revenue recognized is based on the extent of progress towards completion of the promised goods, using the output method. With respect to a small number of contracts for the sale of compounds, the Company has an “enforceable right to payment for performance to date” and as the products do not have an alternative use, the Company recognizes revenue for these contracts over time and records a contract asset using the output method. For the Company's Fragrances Ingredients products, revenue is recognized for the majority of contracts when the Company satisfies its performance obligation by transferring control of the goods to the customer. Sales are reduced, at the time revenue is recognized, for applicable discounts, rebates and sales allowances based on historical experience. Related accruals are included in Other current liabilities in the accompanying Consolidated Balance Sheet. The Company considers shipping and handling activities undertaken after the customer has obtained control of the related goods as a fulfillment activity. Net sales include shipping and handling charges billed to customers. Cost of goods sold includes all costs incurred in connection with shipping and handling. See Note 11 for a further discussion on revenue recognition. See Note 11 for a further discussion on contract assets. Foreign Currency Translation The Company translates the assets and liabilities of non-U.S. subsidiaries into U.S. dollars at year-end exchange rates. Income and expense items are translated at average exchange rates during the year. Cumulative translation adjustments are shown as a separate component of Shareholders’ Equity. Research and Development Research and development (“R&D”) expenses relate to the development of new and improved tastes or scents, technical product support and compliance with governmental regulation. All research and development costs are expensed as incurred. Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments with maturities of three months or less at date of purchase. Restricted Cash Restricted cash is comprised of cash or cash equivalents which has been placed into an account that is restricted for a specific use and from which the Company cannot withdraw the cash on demand. Accounts Receivable During 2019, the Company entered into certain factoring agreements in the U.S. and The Netherlands under which it can factor up to approximately $100 million of its trade receivables. The new factoring agreements supplement the Company's existing factoring programs that are sponsored by certain customers. Under all of the arrangements, the Company sells the trade receivables on a non-recourse basis to unrelated financial institutions and accounts for the transactions as sales of receivables. The applicable receivables are removed from the Company's Consolidated Balance Sheet when the cash proceeds are received by the Company. As of December 31, 2019 , 2018 and 2017 , the Company had sold receivables pursuant to these factoring programs of approximately $205.7 million , $168.3 million and $160.1 million , respectively. Participation in the various programs increased cash provided by operations by approximately $37.7 million , $13.6 million and $15.0 million in 2019 , 2018 and 2017 , respectively. The cost of participating in these programs was approximately $7.1 million , $3.4 million , and $3.0 million in 2019 , 2018 , and 2017 , respectively and is included as a component of interest expense. Inventories Inventories are stated at the lower of cost (on a weighted-average basis) or net realizable value. The Company's inventories consisted of the following: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Raw materials $ 565,071 $ 568,916 Work in process 44,532 48,819 Finished goods 513,465 460,802 Total $ 1,123,068 $ 1,078,537 Leases During the year ended December 31, 2019 , the Company adopted ASU No. 2016-02, “Leases (Topic 842),” which requires most leases to be recognized on the balance sheet. The Company adopted the standard using the modified retrospective approach with an effective date of December 29, 2018, the beginning of its 2019 fiscal year. Prior year financial statements were not recast. The Company elected various transition provisions available for expired or existing contracts, which allows the Company to carryforward historical assessments of (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs. The Company determines if an arrangement is a lease at contract inception. A lease exists when a contract conveys to the customer the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. The definition of a lease embodies two conditions: (1) there is an identified asset in the contract that is land or a depreciable asset (i.e., property, plant, and equipment), and (2) the customer has the right to control the use of the identified asset. When the Company determines the arrangement is a lease, or contains a lease, at inception, it then determines whether the lease is an operating lease or a finance lease at the commencement date. The Company does not separate lease and nonlease components of contracts. The Company leases property and equipment, principally under operating leases. In accordance with ASU 2016-02, the Company records a right of use asset and related obligation at the present value of lease payments and, over the term of the lease, depreciates the right of use asset and accretes the obligation to future value. Some of the leases include rental escalation clauses, renewal options and/or termination options that are factored into the determination of lease payments when appropriate. The Company has elected not to separate non-lease components from lease components for all classes of leased assets. When available, the Company uses the rate implicit in the lease to discount lease payments to present value, however, most of the Company's leases do not provide a readily determinable implicit rate and the Company calculates the applicable incremental borrowing rate to discount the lease payments based on the term of the lease at lease commencement. The incremental borrowing rate is determined based on currency and lease terms. Upon adoption of the new guidance, the Company recorded a right of use asset of $308.3 million and total operating lease liabilities of $313.3 million . Additionally, the Company recorded a net increase to retained earnings of approximately $23.1 million related to the recognition of deferred gains on certain sale-leaseback transactions that occurred in prior years. Long-Lived Assets Property, Plant and Equipment Property, plant and equipment are recorded at cost. Depreciation is calculated on a straight-line basis, principally over the following estimated useful lives: buildings and improvements, 10 to 40 years; machinery and equipment, 3 to 20 years; information technology hardware and software, 3 to 7 years; and leasehold improvements which are included in buildings and improvements, the estimated life of the improvements or the remaining term of the lease, whichever is shorter. Finite-Lived Intangible Assets Finite-lived intangible assets include customer relationships, patents, trade names, technological know-how and other intellectual property valued at acquisition and amortized on a straight-line basis over the following estimated useful lives: customer relationships, 11 - 23 years; patents, 11 - 15 years; trade names, 14 - 28 years; and technological know-how, 5 - 28 years. The Company reviews long-lived assets for impairment when events or changes in business conditions indicate that their carrying value may not be recovered. An estimate of undiscounted future cash flows produced by an asset or group of assets is compared to the carrying value to determine whether impairment exists. If assets are determined to be impaired, the loss is measured based on an estimate of fair value using various valuation techniques, including a discounted estimate of future cash flows. Goodwill Goodwill represents the difference between the total purchase price and the fair value of identifiable assets and liabilities acquired in business acquisitions. The Company tests goodwill for impairment at the reporting unit level as of November 30 every year or more frequently if events or changes in circumstances indicate the asset might be impaired. A reporting unit is an operating segment or one level below an operating segment (referred to as a component) to which goodwill is assigned when initially recorded. The Company identifies their reporting units by assessing whether the components of their reporting segments constitute businesses for which discrete financial information is available and management of each reporting unit regularly reviews the operating results of those components. The Company has identified nine reporting units under the Taste, Scent and Frutarom Segments: (1) Flavor Compounds, (2) Fragrance Compounds, (3) Fragrance Ingredients, (4) Cosmetic Actives Ingredients, (collectively, the "IFF Legacy Reporting Units"), (5) Taste, (6) Savory, (7) Natural Product Solutions, (8) Frutarom Fragrance and Fine Ingredients and (9) Inclusions, (collectively, the "Frutarom Reporting Units"). These reporting units were determined based on the level at which the performance is measured and reviewed by segment management. When testing goodwill for impairment, the Company has the option of first performing a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount. If the Company elects to bypass the qualitative assessment for any reporting units, or if a qualitative assessment indicates it is more likely than not that the estimated carrying value of a reporting unit exceeds its fair value, the Company performs a quantitative goodwill impairment test. Under the quantitative goodwill impairment test, if a reporting unit’s carrying amount exceeds its fair value, the Company will record an impairment charge based on that difference, and the impairment charge will be limited to the amount of goodwill allocated to that reporting unit. Income Taxes The Company accounts for taxes under the asset and liability method. Under this method, deferred income taxes are recognized for temporary differences between the financial statement and tax return bases of assets and liabilities, based on enacted tax rates and other provisions of the tax law. The effect of a change in tax laws or rates on deferred tax assets and liabilities is recognized as income in the period in which such change is enacted. Future tax benefits are recognized to the extent that the realization of such benefits is more likely than not, and a valuation allowance is established for any portion of a deferred tax asset that management believes may not be realized. The Company recognizes uncertain tax positions that it has taken or expects to take on a tax return. Pursuant to accounting requirements, the Company first determines whether it is “more likely than not” its tax position will be sustained if the relevant tax authority were to audit the position with full knowledge of all the relevant facts and other information. For those tax positions that meet this threshold, the Company measures the amount of tax benefit based on the largest amount of tax benefit that it has a greater than 50% chance of realizing in a final settlement with the relevant authority. Those tax positions failing to qualify for initial recognition are recognized in the first interim period in which they meet the more likely than not standard. The Company maintains a cumulative risk portfolio relating to all of its uncertainties in income taxes in order to perform this analysis, but the evaluation of its tax positions requires significant judgment and estimation in part because, in certain cases, tax law is subject to varied interpretation, and whether a tax position will ultimately be sustained may be uncertain. Interest and penalties related to unrecognized tax benefits are recognized as a component of income tax expense. Retirement Benefits Current service costs of retirement plans and postretirement health care and life insurance benefits are accrued. Prior service costs resulting from plan improvements are amortized over periods ranging from 10 to 20 years. Financial Instruments Derivative financial instruments are used to manage interest and foreign currency exposures. The gain or loss on the hedging instrument is recorded in earnings at the same time as the transaction being hedged is recorded in earnings. The associated asset or liability related to the open hedge instrument is recorded in Prepaid expenses and Other current assets or Other current liabilities, as applicable. The Company records all derivative financial instruments on the balance sheet at fair value. Changes in a derivative’s fair value are recognized in earnings unless specific hedge criteria are met. If the derivative is designated as a fair value hedge, the changes in the fair value of the derivative and of the hedged item attributable to the hedged risk are recognized in Net income. If the derivative is designated as a cash flow hedge, the effective portions of changes in the fair value of the derivative are recorded in Accumulated other comprehensive income ("AOCI") in the accompanying Consolidated Balance Sheet and are subsequently recognized in Net income when the hedged item affects earnings. Ineffective portions of changes in the fair value of cash flow hedges, if any, are recognized as a charge or credit to earnings. Software Costs The Company capitalizes direct internal and external development costs for certain significant projects associated with internal-use software and amortizes these costs over 7 years. Neither preliminary evaluation costs nor costs associated with the software after implementation are capitalized. Costs related to projects that are not significant are expensed as incurred. Net Income Per Share Under the two-class method, earnings are adjusted by accretion of amounts to redeemable noncontrolling interests recorded at redemption value. The adjustments represent in-substance dividend distributions to the noncontrolling interest holders as the holders have a contractual right to receive a specified amount upon redemption. As a result, earnings are adjusted to reflect this in-substance distribution that is different from other common shareholders. In addition, the Company has unvested share based payment awards with a right to receive nonforfeitable dividends and thus are considered participating securities which are required to be included in the computation of basic and diluted earnings per share. Basic earnings (loss) per share represents the amount of earnings for the period available to each share of common stock outstanding during the period. Basic earnings (loss) per share includes the effect of issuing shares of common stock assuming (i) the prepaid stock purchase contracts (“SPC”) are converted into the minimum number of shares of common stock under the if-converted method, and (ii) an adjustment to earnings (loss) to reflect adjustments made to record the redeemable value of redeemable noncontrolling interests. Diluted earnings (loss) per share also includes the effect of issuing shares of common stock, assuming (i) stock options and warrants are exercised, (ii) restricted stock units are fully vested under the treasury stock method, and (iii) the incremental effect of the prepaid SPC converted into the maximum number of shares of common stock under the if-converted method. Stock-Based Compensation Compensation cost of all stock-based awards is measured at fair value on the date of grant and recognized over the service period for which awards are expected to vest. The cost of such stock-based awards is principally recognized on a straight-line attribution basis over their respective vesting periods, net of estimated forfeitures. Financing Costs Costs incurred in the issuance of debt are deferred and amortized as part of interest expense over the stated life of the applicable debt instrument. Unamortized deferred financing costs relating to debt are presented as a reduction in the amount of debt outstanding on the Consolidated Balance Sheet. Unamortized deferred financing costs relating to the revolving credit facility are recorded in Other assets on the Consolidated Balance Sheet. Redeemable Noncontrolling Interests Noncontrolling interests in subsidiaries that are redeemable for cash or other assets outside of the Company’s control are classified as mezzanine equity, outside of equity and liabilities, at the greater of the carrying value or the redemption value. The increases or decreases in the estimated redemption amount are recorded with corresponding adjustments against Capital in excess of par value and are reflected in the computation of earnings per share using the two-class method. Recent Accounting Pronouncements In December 2019, the FASB issued Accounting Standards Update ("ASU") 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes.” The ASU is intended to simplify various aspects related to accounting for income taxes. This guidance is effective for fiscal years beginning after December 15, 2020, and for interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact this guidance may have on its consolidated financial statements. In October 2018, the FASB issued ASU 2018-16, “Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate ("SOFR") Overnight Index Swap ("OIS") Rate as a Benchmark Interest Rate for Hedge Accounting Purposes." The ASU allows for the use of the OIS rate based on the SOFR as a U.S. benchmark interest rate for purposes of applying hedge accounting under ASC 815, Derivatives and Hedging. The Company applied this new guidance as of December 29, 2018, the first day of the Company’s 2019 fiscal year. The adoption of the guidance did not have a material impact on the Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-15, “Intangibles - Goodwill and Other - Internal - Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force).” The ASU aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). This guidance is effective for fiscal years beginning after December 15, 2019, and for interim periods within those fiscal years, with early adoption permitted. The adoption of the guidance will impact the Company going forward in the event the Company enters into applicable cloud computing arrangements. In August 2018, the FASB issued ASU 2018-14, "Compensation - Retirement Benefits - Defined Benefit Plans (Subtopic 715-20)", which modifies the disclosure requirements on company-sponsored defined benefit plans. The ASU is effective for fiscal years beginning after December 15, 2020 on a retrospective basis to all periods presented. Early adoption is permitted. The Company has determined that this guidance will not have an impact on its Consolidated Financial Statements and will have a minimal impact on its disclosures. In August 2018, the FASB issued ASU 2018-13, "Fair Value Measurement (Topic 820)", which modifies, removes and adds certain disclosure requirements on fair value measurements. The ASU is effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. Early adoption is permitted. The Company has determined that this guidance will not have an impact on its Consolidated Financial Statements, as the Company has no applicable fair value measurements that are affected by the guidance. In June 2018, the FASB issued ASU 2018-07, "Compensation - Stock Compensation (Topic 718)" intended to reduce cost and complexity and to improve financial reporting for nonemployee share-based payments. This guidance expands the scope of Topic 718, Compensation-Stock Compensation which currently only includes share-based payments to employees to include share-based payments issued to nonemployees for goods or services. The Company applied this new guidance as of December 29, 2018, the first day of the Company’s 2019 fiscal year. The adoption of the guidance did not have a material impact on the Consolidated Financial Statements. In February 2018, FASB issued ASU 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income" which allows for a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Act, in addition to requiring certain disclosures about stranded tax effects. The guidance was effective as of December 29, 2018, the first day of the Company's fiscal year. The Company elected to not reclassify any stranded tax effects to retained earnings. In August 2017, FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities" which eliminates the requirement to separately measure and present hedge ineffectiveness and aligns the presentation of hedge gains and losses with the underlying hedge item. This guidance is effective, and as required, has been applied on a modified retrospective basis. The impact of the adoption of this standard on December 29, 2018 was an increase in the beginning balance of the currency translation adjustment component of Accumulated other comprehensive loss of $1.0 million , and a decrease in Retained Earnings, as presented in the Company's Consolidated Balance Sheet. See Note 13 of the Consolidated Financial Statements for further details. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments", with subsequent amendments, which requires issuers to measure expected credit losses for financial assets based on historical experience, current conditions and reasonable and supportable forecasts. As such, an entity will use forward-looking information to estimate credit losses. The guidance is effective for financial statements issued for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company's evaluation is substantially complete and has included identifying assets that fall within the scope of the standard. The Company has determined that the most significant asset within the scope of the standard is trade receivables. The Company is analyzing payment history as well as aging to determine the appropriate allowance and will reflect the adoption of the standard on the first day of its 2020 fiscal year. Reclassifications and Updates Certain other immaterial prior year disclosure amounts have been reclassified or updated to conform to current year presentation.

Restructuring and Other Charges

Restructuring and Other Charges	12 Months Ended
	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring and Other Charges	RESTRUCTURING AND OTHER CHARGES Restructuring and other charges primarily consist of separation costs for employees including severance, outplacement and other benefit ("Severance") costs as well as costs related to plant closures, principally related to fixed assets write-downs ("Fixed asset write-down") and all other related restructuring ("Other") costs. All restructuring and other charges, net expenses are separately stated on the Consolidated Statement of Income and Comprehensive Income . Frutarom Integration Initiative In connection with the acquisition of Frutarom, the Company began to execute an integration plan that, among other initiatives, seeks to optimize its manufacturing network. As part of the Frutarom Integration Initiative, the Company expects to close approximately 35 manufacturing sites over the next two years with most of the closures targeted to occur before the end of fiscal 2020 . During 2019 , the Company announced the closure of ten facilities, of which six facilities are in Europe, Africa and Middle East, two facilities in Latin America, and one facility each in North America and Greater Asia regions. Since the inception of the initiative, the Company has expensed $10.4 million . Total costs for the program are expected to be approximately $65 million including cash and non-cash charges. 2019 Severance Program During 2019, the Company incurred severance charges related to approximately 330 headcount reductions. The headcount reductions primarily related to the Scent business unit and outsourcing of certain IT functions, with additional amounts related to headcount reductions in all business units associated with the establishment of a new shared service center in Europe. Since the inception of the program, the Company has expensed $21.3 million . Total costs for the program are expected to be approximately $25 million . 2017 Productivity Program In connection with 2017 Productivity Program, the Company recorded $24.5 million of charges related to personnel costs and lease termination costs since the program's inception. Total costs for the program are expected to be approximately $25 million . Changes in Restructuring Liability Movements in severance-related accruals during 2017 , 2018 and 2019 are as follows: (DOLLARS IN THOUSANDS) Balance at January 1, 2017 Additional Charges (Reversals), Net Non-Cash Charges Cash Payments Balance at December 31, 2017 2015 Severance Plan Severance $ 3,277 $ (2,311 ) $ — $ (966 ) $ — 2017 Productivity Program Severance — 20,620 — (13,081 ) 7,539 Other — 1,402 (528 ) (456 ) 418 Total restructuring $ 3,277 $ 19,711 $ (528 ) $ (14,503 ) $ 7,957 (DOLLARS IN THOUSANDS) Balance at January 1, 2018 Additional Charges, Net Non-Cash Charges Cash Payments Balance at December 31, 2018 2017 Productivity Program Severance $ 7,539 $ 3,884 $ — $ (7,298 ) $ 4,125 Other 418 1,195 (418 ) (120 ) 1,075 Total restructuring $ 7,957 $ 5,079 $ (418 ) $ (7,418 ) $ 5,200 (DOLLARS IN THOUSANDS) Balance at January 1, 2019 Additional Charges (Reversals), Net Non-Cash Charges Cash Payments Balance at December 31, 2019 2017 Productivity Program Severance $ 4,125 $ (1,947 ) $ — $ (1,072 ) $ 1,106 Other 1,075 — — (987 ) 88 Frutarom Integration Initiative Severance — 6,110 — (2,072 ) 4,038 Fixed asset write down — 534 (534 ) — — Other — 3,726 (145 ) (1,096 ) 2,485 2019 Severance Program Severance — 20,871 — (7,974 ) 12,897 Other — 471 — — 471 Total restructuring $ 5,200 $ 29,765 $ (679 ) $ (13,201 ) $ 21,085 Other includes supplier contract termination costs, consulting and advisory fees, and other. Charges by Segment The following table summarizes the total amount of costs incurred in connection with these restructuring programs by segment: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Taste $ 328 $ 1,646 $ 4,505 Scent 11,768 3,433 13,077 Frutarom 10,042 — N/A Shared IT & Corporate Costs 7,627 — 2,129 Total Restructuring and other charges, net $ 29,765 $ 5,079 $ 19,711

Acquisitions (Notes)

Acquisitions (Notes)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS Pending Transaction with Nutrition & Biosciences, Inc. On December 15, 2019, the Company entered into definitive agreements with DuPont de Nemours, Inc. (“DuPont”), including an Agreement and Plan of Merger, pursuant to which DuPont will transfer its nutrition and biosciences business to Nutrition & Biosciences, Inc., a Delaware corporation and wholly owned subsidiary of DuPont (“N&B”), and N&B will merge with and into a wholly owned subsidiary of IFF in exchange for a number of shares of IFF common stock, par value $0.125 per share (“IFF Common Stock”) (collectively, the “DuPont N&B Transaction”). In connection with the transaction, DuPont will receive a one-time $7.3 billion special cash payment (the “Special Cash Payment”), subject to certain adjustments. As a result of the DuPont N&B Transaction, holders of DuPont’s common stock will own approximately 55.4% of the outstanding shares of IFF on a fully diluted basis. Completion of the DuPont N&B Transaction is subject to various closing conditions, including, among other things, (1) approval by IFF’s shareholders of the issuance of IFF Common Stock in connection with the transaction; (2) the effectiveness of the registration statements to be filed with the Securities and Exchange Commission pursuant to the Merger Agreement; and (3) the expiration of the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and obtaining certain other consents, authorizations, orders or approvals from governmental authorities. We expect that the transaction will close in early 2021. On December 15, 2019, IFF and N&B entered into a commitment letter which provides $7.5 billion in an aggregate principal amount of senior unsecured bridge term loans (the "Bridge Loans"). On January 17, 2020, N&B entered into a term loan credit agreement providing for unsecured term loan facilities in an aggregate principal amount of $1.25 billion (the “Term Loan Facilities”), which reduced the commitments under the Bridge Loans commitment letter by a corresponding amount. N&B will be the initial borrower under the remaining $6.25 billion tranche of the 364-day senior unsecured bridge facility (the “Bridge Facility”) (or, if applicable, any replacement debt financing), which, together with the Term Loan Facilities, will be used to finance the Special Cash Payment and to pay related fees and expenses. Following the consummation of the merger, all obligations of N&B with respect to the Term Loan Facilities and the Bridge Facility (if any) or, if applicable, the replacement debt financing, will be guaranteed by IFF (or at the election of N&B and IFF, assumed by IFF). 2019 Acquisition Activity During the second quarter of 2019, the Company acquired the remaining 50% interest in an equity method investee located in Canada. The Company previously held an investment of $33 million in the entity and recognized a gain of approximately $3 million on the transaction representing the adjustment of its historical investment to its fair value. This amount is within Other income, net in the Consolidated Statement of Income and Comprehensive Income . The purchase of the additional interest increased the Company's ownership of the investee to 100% , and the acquired entity is managed under the Frutarom segment. The purchase price for the remaining 50% was approximately $37 million , including cash and an accrual for the amount expected to be paid in contingent consideration. The Company began to consolidate the results of the acquired entity from the date on which it acquired the remaining 50% interest during the second quarter of 2019. Goodwill of approximately $35 million and intangible assets of $24 million were recorded in connection with the acquisition. The goodwill is not deductible for income tax purposes. The purchase price allocation is preliminary and is expected to be completed within the measurement period. During the first quarter of 2019, the Company acquired 70% of a company in Europe and increased its ownership of an Asian company from 49% to 60% after receipt of previously pending regulatory approvals. The two acquired entities, which manufacture flavor products, are managed under the Frutarom segment. The total purchase price for the acquisitions was $52 million , excluding cash acquired and including $19 million of contingent consideration and deferred payments. The preliminary purchase price allocations have been performed and resulted in goodwill of approximately $56 million and intangible assets of $18 million . The purchase price allocations are preliminary and are expected to be completed within the measurement period. Pro forma information has not been presented as the entities acquired in 2019 are not material. Frutarom On October 4, 2018 (the "Closing"), the Company completed its acquisition of 100% of Frutarom Industries Ltd. (“Frutarom”), which was accounted for using the purchase method of accounting in accordance with ASC Topic 805, Business Combinations, with IFF identified as the acquirer. The Company paid approximately $7,031 million for the acquisition, including $4,289 million in cash and $2,047 million in equity. At the Closing, each issued and outstanding Frutarom ordinary share was exchanged for $71.19 in cash and 0.2490 of a share of the Company's common stock. A portion of Frutarom’s existing debt was repaid concurrent with the Closing. Frutarom's debt, which was not legally assumed by IFF but was paid at Closing, was approximately $695.0 million. This made up the remainder of the purchase consideration. To finance the acquisition, the Company used cash on hand and borrowed approximately $3.3 billion of additional debt, consisting of $2.8 billion of senior unsecured notes, $350.0 million in term loans and $139.5 million of tangible equity units ("TEUs"). See Notes 8 and 9 for further details. The Company issued 14.9 million shares as a portion of the purchase consideration resulting in former Frutarom shareholders holding approximately 14% of the Company's outstanding common stock as of the Closing. Additionally, the Company issued 16,500,000 TEUs in an underwritten public offering for net proceeds of approximately $665.1 million. Purchase Price Allocation The Company allocated the purchase consideration to the tangible net assets and identifiable intangible assets acquired based on estimated fair values at the acquisition date, and recorded the excess of consideration over the fair values of net assets acquired as goodwill. The purchase price allocation was finalized as of the end of the third quarter of 2019 when the Company finalized the valuation of fixed assets, goodwill and intangible assets (trade names, product formulas, customer relationships and favorable/unfavorable leases and the related estimated useful lives). Additionally, in connection with finalizing the purchase price allocation, the Company also finalized the projected combined future tax rate applied to the valuation of assets, which impacted the valuation of goodwill and intangible assets. The following table summarizes the fair values of the assets acquired and liabilities assumed as of October 4, 2018, showing both the preliminary and final purchase price allocations: (IN THOUSANDS) As reported in the fourth quarter of 2018 Measurement period adjustments Final Purchase Price Allocation Cash and cash equivalents $ 140,747 $ — $ 140,747 Other current assets 699,627 (25,706 ) 673,921 Identifiable intangible assets 2,690,000 (21,700 ) 2,668,300 Other assets 353,710 58,401 412,111 Equity method investments 25,791 10,439 36,230 Current liabilities (311,325 ) (7,190 ) (318,515 ) Debt assumed (77,037 ) — (77,037 ) Other liabilities (632,488 ) (39,730 ) (672,218 ) Redeemable noncontrolling interest (97,510 ) (5,392 ) (102,902 ) Noncontrolling interest (3,700 ) — (3,700 ) Excess attributable to Goodwill 4,243,079 30,878 4,273,957 Total Purchase Consideration $ 7,030,894 $ 7,030,894 The purchase price allocation of the assets and liabilities acquired in the acquisition of Frutarom as reported in the fourth quarter of 2018 was updated during the measurement period ended October 4, 2019 primarily due to: (i) a $19.0 million decrease in inventory, (ii) a $7.4 million decrease in trade receivables, (iii) a $21.7 million decrease in the fair value of identifiable intangible assets (principally customer relationships and product formulas and arising from the updated valuations of fixed assets), (iv) a $58.4 million increase primarily related to property, plant and equipment (related to certain entities), (v) a $10.4 million increase in the fair value of equity method investments, (vi) a $1.5 million increase to the noncurrent portion of earn-outs, (vii) a $14.4 million increase to deferred income tax liabilities, (viii) an $18.9 million increase to reserves for uncertain tax positions, (ix) a $5.0 million increase to environmental remediation liabilities, and (x) a $5.4 million increase to redeemable noncontrolling interest. The cumulative impact of the adjustments resulted in a $30.9 million increase to goodwill. The measurement period adjustments did not have a material impact on the Company's Net income attributable to IFF stockholders for the year ended December 31, 2019. The components of acquired intangible assets with finite lives that have been recorded are as follows: (IN THOUSANDS) Estimated Amounts Weighted-Average Useful Life Product formula $ 290,000 10 years Customer relationships 2,230,000 18 to 20 years Trade names 140,000 23 years Favorable/Unfavorable Leases, net 8,300 5 to 15 years Total $ 2,668,300 During 2019, in connection with the determination of the final purchase price allocation, the Company also finalized its determination of the reporting units for the Frutarom operating segment. The reporting units identified were as follows: (i) Taste; (ii) Savory Solutions; (iii) Inclusions; (iv) Fine Ingredients; and (v) Natural Product Solutions. Pro forma financial information The following unaudited pro forma financial information presents the combined results of operations of IFF and Frutarom as if the acquisition had been completed as of the beginning of the prior fiscal year, or January 1, 2017. The unaudited pro forma financial information is presented for informational purposes and is not indicative of the results of operations that would have been achieved if the acquisition and related borrowings had taken place on January 1, 2017, nor are they indicative of future results. The unaudited pro forma financial information for the year ended December 31, 2018 includes IFF results, including the post-acquisition results of Frutarom, since October 4, 2018, and pre-acquisition results of Frutarom for the period January 1, 2018 through October 3, 2018. The unaudited pro forma results for the years ended December 31, 2018 and December 31, 2017 is as follows: Year Ended December 31, (IN THOUSANDS) 2018 2017 Unaudited pro forma net sales $ 5,135,906 $ 4,761,115 Unaudited pro forma net income attributable to the Company 474,498 240,784 The unaudited pro forma results for all periods presented include adjustments made to account for certain costs and transactions that would have been incurred had the acquisition been completed as of January 1, 2017, including amortization charges for acquired intangibles assets, adjustments for acquisition transaction costs, adjustments for depreciation expense for property, plant, and equipment, and adjustments to interest expense. These adjustments are net of any applicable tax impact and were included to arrive at the pro forma results above. TAA On December 7, 2018, the Company completed the acquisition of 100% of the outstanding shares of The Additive Advantage, LLC ("TAA"), a privately-held manufacturing and licensing company with facilities in North America. The acquisition was accounted for under the purchase method. TAA was acquired to strengthen IFF’s position in delivery capability and technologies, and to advance the R&D delivery platform with printable encapsulation solutions. The Company paid $14.5 million for this acquisition, which was funded from cash on hand. Additionally, the Company recorded an accrual of $6.9 million representing the current estimate of additional contingent consideration payable to the former owners of TAA determined using the scenario-based method. In addition, as part of the acquisition, the Company assumed a loan of $0.5 million that had been due to the Company from TAA. This amount was included in the purchase consideration. The purchase consideration was allocated principally to identifiable intangible assets including $11.4 million to In-process research and development ("IPR&D") and approximately $10.4 million to goodwill (which is deductible for tax purposes). IPR&D represents acquired printing technology that had not been completed as of the acquisition date. The fair value of IPR&D was determined using the income approach. IPR&D will be tested for impairment going forward, and will only be amortized once technological feasibility has been established. The rate utilized to discount the net cash flows to their present value reflects the risk associated with the intangible asset and is benchmarked to the cost of equity. Goodwill is the excess of the purchase price over the fair value of net assets acquired and represents the value the Company expects to achieve from applying the technology to the Company’s existing product portfolio. The purchase price allocation was finalized in the fourth quarter of 2019. The acquisition agreement contains a provision for the payment of certain milestone amounts, which will be expensed as incurred post-acquisition, with a maximum amount that will be paid out of $5.4 million , as they are contingent on continued employment, as well as achievement of milestones related to the IPR&D programs. No pro forma financial information is presented as the acquisition was not material to the consolidated financial statements. PowderPure On April 7, 2017, the Company completed the acquisition of 100% of the outstanding shares of Columbia PhytoTechnology, LLC d/b/a PowderPure ("PowderPure"), a privately-held flavors company with facilities in North America. The acquisition was accounted for under the purchase method. PowderPure was acquired to expand expertise in, and product offerings of, clean label solutions within the Flavors business. The Company paid approximately $54.6 million including $0.4 million of cash acquired for this acquisition, which was funded from existing resources including use of its Credit Facility. Additionally, the Company recorded an accrual of approximately $1.4 million representing the current estimate of additional contingent consideration payable to the former owners of PowderPure. (The maximum earnout payable is $10 million upon satisfaction of certain performance metrics). The purchase price exceeded the preliminary fair value of existing net assets by approximately $48.0 million . The excess was allocated principally to identifiable intangible assets including approximately $27.5 million to proprietary technology, approximately $4.5 million to trade name and approximately $0.8 million to customer relationships, and approximately $15.2 million of goodwill (which is deductible for tax purposes). Goodwill is the excess of the purchase price over the fair value of net assets acquired and represents the value the Company expects to achieve from its increased exposure to clean label products within the Company's existing Flavors business. The intangible assets are being amortized over the following estimated useful lives: proprietary technology, 14 years; trade name, 14 years; and customer relationships, 2 years. The purchase price allocation was completed in the first quarter of 2018. No material adjustments were made to the purchase price allocation since the preliminary valuation performed in the second quarter of 2017. The estimated amount of the contingent consideration payable was reduced to zero during 2018 and resulted in a decrease in administrative expense of approximately $1.3 million . No pro forma financial information for 2017 is presented as the acquisition was not material to the consolidated financial statements. Fragrance Resources On January 17, 2017, the Company completed the acquisition of 100% of the outstanding shares of Fragrance Resources, Inc., Fragrance Resources GmbH, and Fragrance Resources SAS (collectively "Fragrance Resources"), a privately-held fragrance company with facilities in Germany, North America, France, and China. The acquisition was accounted for under the purchase method. Fragrance Resources was acquired to strengthen the North American and German Fragrances business. The Company paid approximately € 143.4 million (approximately $151.9 million ) including approximately € 13.7 million (approximately $14.4 million ) of cash acquired for this acquisition, which was funded from existing resources including use of its Credit Facility. Of the total paid, approximately € 142.0 million (approximately $150.5 million ) was paid at closing and an additional € 1.4 million (approximately $1.5 million ) was paid in connection with the finalization of the working capital adjustment. The purchase price exceeded the fair value of existing net assets by approximately $122.0 million . The excess was allocated principally to identifiable intangible assets including approximately $51.7 million related to customer relationships, approximately $13.6 million related to proprietary technology and trade name, and approximately $72.0 million of goodwill (which is not deductible for tax purposes) and approximately $15.3 million of net deferred tax liability. Goodwill is the excess of the purchase price over the fair value of net assets acquired and represents synergies from the addition of Fragrance Resources to the Company's existing Fragrances business. The intangible assets are being amortized over the following estimated useful lives: trade name, 2 years; proprietary technology, 5 years; and customer relationships, 12 - 16 years. The purchase price allocation was finalized in the fourth quarter of 2017. Certain measurement period adjustments were made subsequent to the initial purchase price allocation including adjustments related to the finalization of the purchase price, the allocation of certain intangibles and the calculation of applicable deferred taxes. The additional amortization of intangibles required as a result of the measurement period adjustments was not material. No pro forma financial information for 2017 is presented as the acquisition was not material to the consolidated financial statements.

Property, Plant and Equipment,

Property, Plant and Equipment, Net	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Net	PROPERTY, PLANT AND EQUIPMENT, NET Property, plant and equipment consisted of the following amounts: (DOLLARS IN THOUSANDS) December 31, 2019 2018 Asset Type Land $ 73,170 $ 75,528 Buildings and improvements 831,579 760,783 Machinery and equipment 1,366,041 1,342,881 Information technology 231,858 179,876 Construction in process 188,120 133,870 Total Property, Plant and Equipment 2,690,768 2,492,938 Accumulated depreciation (1,303,848 ) (1,251,786 ) Total Property, Plant and Equipment, Net $ 1,386,920 $ 1,241,152 Depreciation expense was $130.2 million for the year ended December 31, 2019 , and $89.1 million and $83.4 million for the years ended December 31, 2018 and 2017

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets, Net	12 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets, Net	GOODWILL AND OTHER INTANGIBLE ASSETS, NET Goodwill Movements in goodwill during the years ended December 31, 2017 , 2018 and 2019 were as follows: (DOLLARS IN THOUSANDS) Goodwill Balance at January 1, 2017 $ 1,000,123 Acquisitions 87,865 Foreign exchange 32,920 Other (a) 35,380 Balance at December 31, 2017 1,156,288 Acquisitions (b) 4,253,541 Disposals (19,069 ) Foreign exchange (12,372 ) Balance at December 31, 2018 5,378,388 Acquisitions (c) 98,411 Frutarom measurement period adjustment 30,876 Foreign exchange (10,079 ) Balance at December 31, 2019 $ 5,497,596 _______________________ (a) Other above principally represents the increase to Goodwill associated with the update of certain customer relationship assumptions in the final purchase price allocation of David Michael. (b) Primarily relates to the Company's acquisition of Frutarom. (c) Additions primarily relate to the 2019 Acquisition Activity. See Note 3 for details. Goodwill by segment was as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Taste $ 527,785 $ 525,060 Scent 623,373 618,878 Frutarom 4,346,438 4,224,010 Unallocated — 10,440 Total $ 5,497,596 $ 5,378,388 The increase reflected in Scent above represents the impact of foreign currency. The increase reflected in Frutarom above primarily represents the final purchase price allocation of Frutarom as disclosed in Note 3 . The unallocated Goodwill for the year ended December 31, 2018 above represents the preliminary purchase price allocation of TAA as disclosed in Note 3 which was subsequently allocated in 2019. Annual Goodwill Impairment Test For the annual impairment test as of November 30, 2019 , the Company assessed the fair value of the reporting units primarily using an income approach. Under the income approach, the Company determines the fair value by using a discounted cash flow method at a rate of return that reflects the relative risk of the cash flows, projecting future cash flows of each reporting unit, as well as a terminal value. The Company uses the most current actual and forecasted operating data available and key estimates and assumptions used in these valuations include revenue growth rates and profit margins based on internal forecasts, specific weighted-average cost of capital used to discount future cash flows, and historical operating trends of the Company. There was no impairment of goodwill at any of the Company's nine reporting units in 2019 . Based on the annual impairment test performed at November 30, 2019 , the Company determined that IFF Legacy Reporting Units fair values exceeded their respective carrying values by over 200% , with the exception of one reporting unit that had 80% excess fair value over carrying value. In the analysis performed for the Frutarom Reporting Units, there was less than 10% excess fair value over carrying value for two reporting units. The fair values of the remaining Frutarom Reporting Units exceeded their respective carrying values by a range of approximately 10% to 55% . For the reporting units with less than 10% excess fair value, the Savory reporting unit had excess fair value over carrying value of 8.3% , and the Taste reporting unit had excess fair value over carrying value of 7.5% . While management believes that the assumptions used in the impairment test were reasonable, changes in key assumptions, including, lower revenue growth, lower operating margin, lower terminal growth rates or increasing discount rates could result in a future impairment. If current long-term projections for these reporting units are not realized or materially decrease, we may be required to write-off all or a portion of the goodwill. Such charge could have a material effect on the Consolidated Statements of Operations and Balance Sheets. Using the income approach and holding other assumptions constant, the following table provides the impact on the headroom by hypothetically changing key assumptions on a standalone basis for the Company's Savory and Taste reporting units as of November 30, 2019: Goodwill Key Assumptions Existing Headroom Resulting Headroom (DOLLARS IN MILLIONS) Discount Rate Terminal Growth 50 bps Increase in Discount Rate 50 bps Decline in Terminal Growth Savory $ 1,205 7.5 % 3.0 % 8.3 % (3.4 )% (0.3 )% Taste 1,662 7.5 % 3.0 % 7.5 % (3.6 )% (0.9 )% Other Intangible Assets Other intangible assets, net consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Asset Type Customer relationships $ 2,653,446 $ 2,658,659 Technological know-how 468,256 451,016 Trade names & patents 178,968 177,770 Other 40,362 43,766 Total carrying value 3,341,032 3,331,211 Accumulated Amortization Customer relationships (302,047 ) (156,906 ) Technological know-how (135,269 ) (93,051 ) Trade names & patents (27,213 ) (19,593 ) Other (24,568 ) (22,339 ) Total accumulated amortization (489,097 ) (291,889 ) Other intangible assets, net $ 2,851,935 $ 3,039,322 Amortization expense was $193.1 million for the year ended December 31, 2019 , and $75.9 million and $34.7 million for the years ended December 31, 2018 and 2017 , respectively. Amortization expense for the next five years and thereafter, based on preliminary valuations and determinations of useful lives, is expected to be as follows: December 31, (DOLLARS IN THOUSANDS) 2020 2021 2022 2023 2024 Estimated future intangible amortization expense $ 189,896 $ 185,510 $ 181,698 $ 181,586 $ 181,586

Other Assets And Liabilities, C

Other Assets And Liabilities, Current and Noncurrent	12 Months Ended
	Dec. 31, 2019
Other Assets [Abstract]
Other Assets	OTHER ASSETS AND LIABILITIES, CURRENT AND NONCURRENT Other current assets consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Value-added tax receivable $ 78,526 $ 62,475 Income tax receivable 69,284 60,139 Prepaid expenses 110,768 90,962 Other 60,756 63,460 Total $ 319,334 $ 277,036 Other assets consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Operating lease right-of-use assets $ 287,870 $ — Finance lease right-of-use assets 4,792 — Deferred income taxes 125,552 89,000 Overfunded pension plans 85,657 75,158 Cash surrender value of life insurance contracts 47,578 43,179 Other (a) 56,967 81,336 Total $ 608,416 $ 288,673 _______________________ (a) Includes land usage rights in China and long term deposits. Other current liabilities consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Accrued payrolls and bonuses $ 102,704 $ 121,080 Rebates and incentives payable 49,938 44,175 Value-added tax payable 20,729 23,253 Interest payable 32,417 36,823 Current pension and other postretirement benefit obligation 11,972 11,528 Accrued insurance (including workers’ compensation) 9,960 9,447 Earn outs payable 12,961 29,974 Restructuring and other charges 21,085 5,200 Short term operating lease obligation 37,744 — Short term financing lease obligation 1,931 — Accrued income taxes 42,141 24,356 Other 233,240 224,672 Total $ 576,822 $ 530,508

Debt

Debt	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Debt	DEBT Debt consisted of the following at December 31: (DOLLARS IN THOUSANDS) Effective Interest Rate 2019 2018 2020 Notes (1) 3.69 % $ 299,381 $ 298,499 2021 Euro Notes (1) 0.82 % 334,561 337,704 2023 Notes (1) 3.30 % 299,004 298,698 2024 Euro Notes (1) 1.88 % 558,124 564,034 2026 Euro Notes (1) 1.93 % 890,183 899,886 2028 Notes (1) 4.57 % 396,688 396,377 2047 Notes (1) 4.44 % 493,571 493,151 2048 Notes (1) 5.12 % 785,996 785,788 Term Loan (1) 3.65 % 239,621 349,163 Amortizing Notes (1) 6.09 % 82,079 125,007 Bank overdrafts and other 3,131 4,695 Deferred realized gains on interest rate swaps 57 57 Total debt $ 4,382,396 $ 4,553,059 Less: Short term borrowings (2) (384,958 ) (48,642 ) Total Long-term debt $ 3,997,438 $ 4,504,417 _______________________ (1) Amount is net of unamortized discount and debt issuance costs. (2) Includes bank borrowings, overdrafts and current portion of long-term debt. Term Loan On June 6, 2018 and amended on July 13, 2018, the Company entered into a term loan credit agreement to replace a portion of the bridge loan facility, reducing the amount of the bridge loan commitments by $350 million . Under the term loan credit agreement, the lenders thereunder committed to provide, subject to certain conditions, a senior unsecured term loan facility (as amended, "Term Loan") in an original aggregate principal amount of up to $350.0 million , maturing three years after the funding date thereunder. The proceeds from the term loan were received on October 3, 2018. The Term Loan bears interest, at the Company’s option, at a per annum rate equal to either (x) an adjusted LIBOR rate plus an applicable margin varying from 0.75% to 2.00% or (y) a base rate plus an applicable margin varying from 0.00% to 1.00% , in each case depending on the public debt ratings for non-credit enhanced long-term senior unsecured debt issued by the Company. Loans under the Term Loan will amortize quarterly at a per annum rate of 10.0% of the aggregate principal amount of the loans made under the Term Loan on the funding date, commencing December 31, 2018, with the balance payable on October 3, 2021. The Company may voluntarily prepay the term loans without premium or penalty. The term loan credit agreement contains various covenants, limitations and events of default customary for similar facilities for similarly rated borrowers, including a maximum ratio of net debt to EBITDA of 4.50 x with step-downs over time. During the first, third and fourth quarter of 2019, the Company made payments of $25 million , $42 million and $43 million , respectively, on the Term Loan. Credit Facility On May 21, 2018, June 6, 2018 and July 13, 2018, the Company and certain of its subsidiaries amended and restated the Company’s existing amended and restated credit agreement with Citibank, N.A., as administrative agent (as amended, the “Credit Facility”) in connection with the acquisition of Frutarom, to, among other things (i) extend the maturity date of the Credit Facility until June 6, 2023, (ii) increase the maximum ratio of net debt to EBITDA on and after the closing date of the acquisition and (iii) increase the drawn down capacity to $1.0 billion , consisting of a $585 million tranche A revolving credit facility (which provides for borrowings available in U.S. dollars, euros, Swiss francs, Japanese yen and/or British pounds sterling, with a sublimit of $25 million for swing line borrowings) (“Tranche A”) and a $415 million tranche B revolving credit facility (which provides for borrowings available in U.S. dollars, euros, Swiss francs, Japanese yen and/or British pounds sterling, with sublimits of €50 million and $25 million for swing line borrowings) (“Tranche B” and, together with Tranche A, the “Revolving Facility”). The interest rate on the Revolving Facility will be, at the applicable borrower’s option, a per annum rate equal to either (x) an adjusted LIBOR rate plus an applicable margin varying from 0.75% to 1.75% or (y) a base rate plus an applicable margin varying from 0.00% to 0.750% , in each case depending on the public debt ratings for non-credit enhanced long-term senior unsecured debt issued by the Company. Other terms and covenants under the Credit Facility remain substantially unchanged. The Credit Facility is available for general corporate purposes of each borrower and its subsidiaries. The obligations under the Credit Facility are unsecured and the Company has guaranteed the obligations of each other borrower under the Credit Facility. The Company pays a commitment fee on the aggregate unused commitments; such fee is not material. In connection with the Credit Facility, the Company incurred $0.7 million of debt issuance costs. As of December 31, 2019 , the Company was in compliance with all covenants under this Credit Facility. Total availability under the Credit Facility was $1.0 billion , with no outstanding borrowings as of December 31, 2019 . As the Credit Facility is a multi-year revolving credit agreement, the Company classifies as long-term debt the portion that it has the intent and ability to maintain outstanding longer than 12 months. 2018 Senior Unsecured Notes On September 26, 2018, the Company issued $300 million aggregate principal amount of senior unsecured notes that mature on September 25, 2020 (the “2020 Notes”). The 2020 Notes bear interest at a rate of 3.40% per year, payable semi-annually on March 25 and September 25 of each year, beginning March 25, 2019. Total proceeds from the issuance of the 2020 Notes, net of underwriting discounts and offering costs, were $298.9 million . On September 25, 2018 the Company issued €300 million aggregate principal amount of senior unsecured notes that mature on September 25, 2021 (the “2021 Euro Notes”). The 2021 Notes bear interest at a rate of 0.5% per year, payable annually on September 25 of each year, beginning September 25, 2019. Total proceeds from the issuance of the 2021 Notes, net of underwriting discounts and offering costs, were €297.7 million ( $349.5 million in USD). On September 25, 2018, the Company issued €800 million aggregate principal amount of senior unsecured notes that mature on September 25, 2026 (the “2026 Euro Notes”). The 2026 Notes bear interest at a rate of 1.8% per year, payable annually on September 25 of each year, beginning September 25, 2019. Total proceeds from the issuance of the 2026 Notes, net of underwriting discounts and offering costs, were €794.1 million ( $932.2 million in USD). On September 26, 2018, the Company issued $400 million aggregate principal amount of senior unsecured notes that mature on September 26, 2028 (the “2028 Notes”). The 2028 Notes bear interest at a rate of 4.45% per year, payable semi-annually on March 26 and September 26 of each year, beginning March 26, 2019. Total proceeds from the issuance of the 2028 Notes, net of underwriting discounts and offering costs, were $397.0 million . On September 26, 2018, the Company issued $800 million aggregate principal amount of senior unsecured notes that mature on September 26, 2048 (the “2048 Notes” and collectively with the 2021 Euro Notes, 2026 Euro Notes, 2020 Notes, 2028 Notes, the "2018 Senior Unsecured Notes"). The 2048 Notes bear interest at a rate of 5.0% per year, payable semi-annually on March 26 and September 26 of each year, beginning March 26, 2019. Total proceeds from the issuance of the 2048 Notes, net of underwriting discounts and offering costs, were $787.2 million . As discussed in Note 17 , the 2021 Euro Notes and 2026 Euro Notes have been designated as a hedge of the Company's net investment in certain subsidiaries. Tangible Equity Units - Senior Unsecured Amortizing Notes On September 17, 2018, in connection with the issuance of the TEUs, the Company issued $139.5 million aggregate principal amount of Amortizing Notes. The Amortizing Notes mature on September 15, 2021. Each quarterly cash installment payment of $0.75 (or, in the case of the installment payment due on December 15, 2018, $0.73333 ) per Amortizing Note will constitute a partial repayment of principal and a payment of interest, computed at an annual rate of 3.79% . Interest will be calculated on the basis of a 360 day year consisting of twelve 30 day months. Payments will be applied first to the interest due and payable and then to the reduction of the unpaid principal amount, allocated as set forth in the amortization schedule in the indenture governing the Amortizing Notes. See Note 8 for further information on the TEUs. There are no covenants or provisions in the indenture related to the TEUs that would afford the holders of the amortizing notes protection in the event of a highly leveraged transaction, reorganization, restructuring, merger or similar transaction involving the Company that may adversely affect such holders. If a fundamental change occurs, or if the Company elects to settle the SPCs early, then the holders of the Amortizing Notes will have the right to require the Company to repurchase the Amortizing Notes at a repurchase price equal to the principal amount of the Amortizing Notes as of the repurchase date plus accrued and unpaid interest. The indenture also contains customary events of default which would permit the holders of the Amortizing Notes to declare the notes to be immediately due and payable if not cured within applicable grace periods, including the failure to make timely installment payments on the notes or other material indebtedness, failure to give notice of a fundamental change and specified events of bankruptcy and insolvency. 2047 Notes On May 18, 2017, the Company issued $500.0 million face amount of 4.375% Senior Notes ("2047 Notes") due 2047 at a discount of $1.8 million . The Company received proceeds related to the issuance of these 2047 Notes of $493.9 million which was net of the $1.8 million discount and $4.4 million in underwriting fees (recorded as deferred financing costs). In addition, the Company incurred $0.9 million in legal and professional costs associated with the issuance and such costs were recorded as deferred financing costs. In connection with the debt issuance, the Company entered into pre-issuance hedging transactions that were settled upon issuance of the debt and resulted in a loss of approximately $5.3 million . The discount, deferred financing costs and pre-issuance hedge loss are being amortized as interest expense over the 30 year term of the debt. The 2047 Notes bear interest at a rate of 4.375% per annum, with interest payable semi-annually on June 1 and December 1 of each year, commencing on December 1, 2017. The 2047 Notes will mature on June 1, 2047. 2024 Euro Notes On March 14, 2016, the Company issued € 500.0 million face amount of 1.75% Senior Notes ("2024 Euro Notes") due 2024 at a discount of € 0.9 million . The Company received proceeds related to the issuance of these 2024 Euro Notes of € 496.0 million which was net of the € 0.9 million discount and € 3.1 million underwriting discount (recorded as deferred financing costs). In addition, the Company incurred $1.3 million of other deferred financing costs in connection with the debt issuance. In connection with the debt issuance, the Company entered into pre-issuance hedging transactions that were settled upon issuance of the debt and resulted in a loss of approximately $3.2 million . The discount, deferred financing costs and pre-issuance hedge loss are being amortized as interest expense over the eight year term of the debt. The 2024 Euro Notes bear interest at a rate of 1.75% per annum, with interest payable on March 14 of each year, commencing on March 14, 2017. The 2024 Euro Notes will mature on March 14, 2024. As discussed in Note 17 , the 2024 Euro Notes have been designated as a hedge of the Company's net investment in certain subsidiaries. 2023 Notes On April 4, 2013, the Company issued $300.0 million face amount of 3.20% Senior Notes (“2023 Notes”) due 2023 at a discount of $0.3 million . The Company received proceeds related to the issuance of these 2023 Notes of $297.8 million which was net of the $0.3 million discount and a $1.9 million underwriting discount (recorded as deferred financing costs). In addition, the Company incurred $0.9 million of other deferred financing costs in connection with the debt issuance. The discount and deferred financing costs are being amortized as interest expense over the term of the 2023 Notes. The 2023 Notes bear interest at a rate of 3.20% per year, with interest payable on May 1 and November 1 of each year , commencing on November 1, 2013. The 2023 Notes mature on May 1, 2023. Redemption Provisions The 2018 Senior Unsecured Notes, 2023 Notes, 2024 Euro Notes and 2047 Notes (collectively, the "Notes") share the same redemption provisions. Upon 30 days’ notice to holders of the Notes, the Company may redeem the Notes for cash in whole, at any time, or in part, from time to time, prior to maturity, at redemption prices that include accrued and unpaid interest and a make-whole premium, as specified in the indenture governing the Notes. However, no make-whole premium will be paid for redemptions of each note on or after the following date: Note Redemption Date 2020 Notes September 25, 2020 2021 Euro Notes August 25, 2021 2023 Notes February 1, 2023 2024 Euro Notes December 14, 2023 2026 Euro Notes June 25, 2026 2028 Notes June 26, 2028 2047 Notes December 1, 2046 2048 Notes March 26, 2048 The indenture of each note provides for customary events of default and contains certain negative covenants that limit the ability of the Company and its subsidiaries to grant liens on assets, or to enter into sale-leaseback transactions. In addition, subject to certain limitations, in the event of the occurrence of both (1) a change of control of the Company and (2) a downgrade of the Notes below investment grade rating by both Moody’s Investors Services, Inc. and Standard & Poor’s Ratings Services within a specified time period, the Company will be required to make an offer to repurchase the Notes at a price equal to 101% of the principal amount of the Notes, plus accrued and unpaid interest to the date of repurchase. Outstanding Borrowings The following table shows the contractual maturities of the Company's long-term debt as of December 31, 2019 . Payments Due by Period (DOLLARS IN THOUSANDS) Total Less than 1 Year 1-3 Years 3-5 Years More than 5 Years 2020 Notes $ 300,000 $ 300,000 $ — $ — $ — 2021 Euro Notes 336,360 — 336,360 — — 2023 Notes 300,000 — — 300,000 — 2024 Euro Notes 560,600 — — 560,600 — 2026 Euro Notes 896,960 — — — 896,960 2028 Notes 400,000 — — — 400,000 2047 Notes 500,000 — — — 500,000 2048 Notes 800,000 — — — 800,000 Term Loan 240,000 35,000 205,000 — — Amortizing Notes 83,433 47,001 36,432 — — Total $ 4,417,353 $ 382,001 $ 577,792 $ 860,600 $ 2,596,960 Commercial Paper Commercial paper issued by the Company generally has terms of 90 days or less. As of December 31, 2019 , and 2018 , there was no commercial paper outstanding. The Credit Facility is used as a backstop for the Company's commercial paper program. The Company did not draw any commercial paper during 2019, and the maximum amount of commercial paper outstanding during 2018 was $85 million .

Tangible Equity Units

Tangible Equity Units	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Shareholders' Equity	TANGIBLE EQUITY UNITS On September 17, 2018, the Company issued and sold 16,500,000 , 6.00% TEUs at $50 per unit and received proceeds of $800.2 million , net of discounts and issuance costs of $24.8 million . Each TEU is comprised of: (i) a prepaid SPC to be settled by delivery of a specified number of shares of the Company's common stock, and (ii) a senior amortizing note (“Amortizing Note”), with an initial principal amount of $8.45 and a final installment payment date of September 15, 2021. The Company pays equal quarterly cash installments of $0.75 per Amortizing Note on March 15, June 15, September 15, and December 15 of each year, with the exception of the first installment payment of $0.7333 per Amortizing Note which was due on December 15, 2018. In the aggregate, the annual quarterly cash installments will be equivalent to 6.00% per year. Each installment payment constitutes a payment of interest and a partial repayment of principal, computed at an annual rate of 3.79% . Each TEU may be separated by a holder into its constituent SPC and Amortizing Note after the initial issuance date of the TEUs, and the separate components may be combined to create a TEU after the initial issuance date, in accordance with the terms of the SPC. The TEUs are listed on the New York Stock Exchange under the symbol “IFFT”. The proceeds from the issuance of the TEUs were allocated to equity and debt based on the relative fair value of the respective components of each TEU as follows: (IN MILLIONS, EXCEPT FAIR VALUE PER TEU) SPC Amortizing Note Total Fair Value per TEU $ 41.5 $ 8.5 $ 50.0 Gross Proceeds $ 685.5 $ 139.5 $ 825.0 Less: Issuance costs 20.4 4.4 24.8 Net Proceeds $ 665.1 $ 135.1 $ 800.2 The net proceeds of the SPCs were recorded as additional paid in capital, net of issuance costs. The net proceeds of the Amortizing Notes were recorded as debt, with deferred financing costs recorded as a reduction of the carrying amount of the debt in the Company's consolidated balance sheet. Deferred financing costs related to the Amortizing Notes are amortized through the maturity date using the effective interest rate method. Unless settled early at the holder’s or the Company's election, each SPC will automatically settle on September 15, 2021 for a number of shares of common stock per SPC based on the 20 day volume-weighted average price (“VWAP”) of the Company's common stock as follows: VWAP of IFF Common Stock Common Stock Issued Equal to or greater than $159.54 0.3134 shares (minimum settlement rate) Less than $159.54, but greater than $130.25 $50 divided by VWAP Less than or equal to $130.25 0.3839 shares (maximum settlement rate) At any time prior to the second scheduled trading day immediately preceding September 15, 2021, any holder of an SPC may settle any or all of its SPCs early, and the Company will deliver 0.3134 shares of its common stock for each SPC, subject to adjustment. Additionally, the SPCs may be redeemed in the event of a fundamental change as defined in the SPC. Dividends Cash dividends declared per share were $2.96 , $2.84 and $2.66 in for the years ended December 31, 2019 , 2018 and 2017 , respectively. The Consolidated Balance Sheet reflects $80.0 million of dividends payable at December 31, 2019 . This amount relates to a cash dividend of $0.75 per share declared in December 2019 and paid in January 2020 . Dividends declared, but not paid as of December 31, 2018 and December 31, 2017 were $77.8 million ( $0.73 per share) and $54.4 million ( $0.69 per share), respectively. Share Repurchases In December 2012, the Board of Directors authorized a $250.0 million share repurchase program, which commenced in the first quarter of 2013. In August 2015, the Board of Directors approved an additional $250 million share repurchase authorization and extension through December 31, 2017. Based on the total remaining amount of $56.1 million available under the amended repurchase program as of October 31, 2017, the Board of Directors re-approved on November 1, 2017 a $250.0 million share repurchase authorization and extension for a total value of $300.0 million available under the program, which expires on November 1, 2022 . A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is summarized as follows: (DOLLARS IN THOUSANDS) Shares Repurchased Weighted- Average Price per Share Dollar Amount Repurchased Year Ended December 31, 2018 108,109 $ 143.15 $ 15,475 Year Ended December 31, 2017 459,264 126.44 58,069 Based on the total remaining amount of $279.7 million available under the repurchase program, 2,213,425 shares, or 2.0% of shares outstanding (based on the market price and weighted average shares outstanding as of December 31, 2019 ) could be repurchased under the program as of December 31, 2019 . The following tables present changes in the accumulated balances for each component of other comprehensive income, including current period other comprehensive income and reclassifications out of accumulated other comprehensive income: (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive loss, net of tax, as of December 31, 2018 $ (396,996 ) $ 4,746 $ (309,977 ) $ (702,227 ) OCI before reclassifications 23,953 4,969 (45,599 ) (16,677 ) Amounts reclassified from AOCI — (7,647 ) 9,657 2,010 Net current period other comprehensive income (loss) 23,953 (2,678 ) (35,942 ) (14,667 ) Accumulated other comprehensive loss, net of tax, as of December 31, 2019 $ (373,043 ) $ 2,068 $ (345,919 ) $ (716,894 ) (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2017 $ (297,416 ) $ (10,332 ) $ (329,734 ) $ (637,482 ) OCI before reclassifications (99,580 ) 8,011 9,717 (81,852 ) Amounts reclassified from AOCI — 7,067 10,040 17,107 Net current period other comprehensive income (loss) (99,580 ) 15,078 19,757 (64,745 ) Accumulated other comprehensive loss, net of tax, as of December 31, 2018 $ (396,996 ) $ 4,746 $ (309,977 ) $ (702,227 ) (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2016 $ (352,025 ) $ 7,604 $ (335,674 ) $ (680,095 ) OCI before reclassifications 66,826 (14,782 ) (7,941 ) 44,103 Amounts reclassified from AOCI (12,217 ) (a) (3,154 ) 13,881 (1,490 ) Net current period other comprehensive income (loss) 54,609 (17,936 ) 5,940 42,613 Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2017 $ (297,416 ) $ (10,332 ) $ (329,734 ) $ (637,482 ) (a) Represents a foreign currency exchange gain from the release of a currency translation adjustment upon the liquidation of a foreign entity in 2017. The following table provides details about reclassifications out of AOCI to the Consolidated Statement of Comprehensive Income: Year Ended December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Affected Line Item in the Consolidated Statement of Comprehensive Income (Losses) gains on derivatives qualifying as hedges Foreign currency contracts $ 9,719 $ (7,089 ) $ 4,506 Cost of goods sold Interest rate swaps (857 ) (864 ) (789 ) Interest expense Tax (1,215 ) 886 (563 ) Provision for income taxes Total $ 7,647 $ (7,067 ) $ 3,154 Total, net of income taxes (Losses) gains on pension and postretirement liability adjustments Prior service cost $ 6,644 $ 7,752 $ 7,040 (a) Actuarial losses (19,032 ) (20,645 ) (24,699 ) (a) Tax 2,731 2,853 3,778 Provision for income taxes Total $ (9,657 ) $ (10,040 ) $ (13,881 ) Total, net of income taxes _______________________ (a) The amortization of prior service cost and actuarial loss is included in the computation of net periodic benefit cost. Refer to Note 16 to the Consolidated Financial Statements for additional information regarding net periodic benefit cost.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Earnings before income taxes consisted of the following: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 U.S. loss before taxes $ (110,363 ) $ (99,125 ) $ (24 ) Foreign income before taxes 667,815 546,882 537,069 Total income before taxes $ 557,452 $ 447,757 $ 537,045 The income tax provision consisted of the following: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Current tax provision Federal $ 9,979 $ (11,568 ) $ 68,886 State and local 429 1,709 137 Foreign 146,055 98,433 113,468 Total current tax provision 156,463 88,574 182,491 Deferred tax provision Federal (41,126 ) (8,287 ) 74,446 State and local 7,598 (7,092 ) (11,537 ) Foreign (25,751 ) 34,781 (4,020 ) Total deferred tax (benefit) provision (59,279 ) 19,402 58,889 Total taxes on income $ 97,184 $ 107,976 $ 241,380 Effective Tax Rate Reconciliation Reconciliation between the U.S. federal statutory income tax rate to the actual effective tax rate was as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Statutory tax rate 21.0 % 21.0 % 35.0 % Difference in effective tax rate on foreign earnings and remittances (6.8 ) (6.1 ) (12.6 ) Tax benefit from supply chain optimization (1.0 ) (3.0 ) (2.3 ) Unrecognized tax benefit, net of reversals 3.4 2.9 2.3 U.S. tax reform — (1.8 ) 26.5 Deferred taxes on deemed repatriation 0.8 10.1 0.3 Global intangible low-taxed income — 1.8 — Acquisition costs 0.5 1.3 — Establishment (release) of valuation allowance on state deferred 1.7 (1.5 ) (1.7 ) State and local taxes (0.8 ) 0.6 0.1 Other, net (1.4 ) (1.2 ) (2.7 ) Effective tax rate 17.4 % 24.1 % 44.9 % The effective tax rate reflects the impact of a favorable mix of earnings, partially offset by loss provisions and the establishment of a valuation allowance on certain state deferred tax assets. On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”) that significantly revised the U.S. tax code effective January 1, 2018. The Tax Act created significant international tax provisions, including global intangible low-taxed income ("GILTI"). The Company has elected to treat GILTI as a current period cost if and when incurred. This tax position resulted in a net $0.1 million income tax expense for the year ended December 31, 2019, principally due to a provision to return adjustment. The U.S. consolidated group has historically generated taxable income after the inclusion of foreign dividends which has allowed the Company to realize its federal deferred tax assets. Foreign dividends are subject to a 100% dividends received deduction under the Tax Act and do not serve as a source of federal taxable income. However, as of December 31, 2019 the U.S. consolidated group is in a cumulative income position, and is expected to continue to be in a cumulative income position principally due to the inclusion of global intangible low-taxed income and expects to realize tax benefits for the reversal of temporary differences. The corresponding U.S. federal taxable income is sufficient to realize $75.9 million in deferred tax assets as of December 31, 2019. Further, as of December 31, 2019 the Company recorded an expense for $9.7 million related to a valuation allowance established on state tax credits. This was principally due to state legislative updates during 2019 surrounding certain positions of the Tax Act, namely GILTI. The majority of the Company’s state deferred tax assets relate to net operating loss and tax credit carryforwards that have a specified carryforward period. Therefore, the Company has maintained a valuation allowance of $13.5 million on certain state tax attributes based on a state taxable income forecast. The main inputs into the forecast are the 2019 taxable income projections. Changes in the performance of the North American business, the Company’s transfer pricing policies and adjustments to the Company’s U.S. tax profile could impact the estimate. Deferred Taxes The deferred tax assets and liabilities consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Employee and retiree benefits $ 87,924 $ 80,382 Credit and net operating loss carryforwards 220,156 225,152 Intangible assets 8,477 12,489 Amortizable R&D expenses 15,477 481 Gain on foreign currency translation 3,285 — Interest limitation 39,867 19,380 Inventory 14,396 13,308 Lease obligations 53,751 — Other, net 14,351 17,528 Gross deferred tax assets 457,684 368,720 Property, plant and equipment, net (49,158 ) (22,511 ) Intangible assets (621,044 ) (616,333 ) Right-of-use assets (53,555 ) — Loss on foreign currency translation — (7,717 ) Deferred taxes on deemed repatriation (46,066 ) (88,759 ) Gross deferred tax liabilities (769,823 ) (735,320 ) Valuation allowance (203,765 ) (200,280 ) Total net deferred tax liabilities $ (515,904 ) $ (566,880 ) Net operating loss carryforwards were $207.9 million and $209.4 million at December 31, 2019 and 2018 , respectively. If unused, $12.3 million will expire between 2020 and 2039 . The remainder, totaling $195.6 million , may be carried forward indefinitely. Tax credit carryforwards were $18.5 million and $17.8 million at December 31, 2019 and 2018 , respectively. If unused, the $18.5 million will expire between 2020 and 2039. Of the $226.4 million deferred tax asset for net operating loss carryforwards and credits at December 31, 2019 , the Company considers it unlikely that a portion of the tax benefit will be realized. Accordingly, a valuation allowance of $190.6 million of net operating loss carryforwards and $14.1 million of tax credits has been established against these deferred tax assets. Uncertain Tax Positions A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Balance of unrecognized tax benefits at beginning of year $ 50,953 $ 38,162 $ 26,428 Gross amount of increases in unrecognized tax benefits as a result of positions taken during a prior year 20,361 9,751 1,169 Gross amount of decreases in unrecognized tax benefits as a result of positions taken during a prior year (2,241 ) (5,362 ) (268 ) Gross amount of increases in unrecognized tax benefits as a result of positions taken during the current year 13,274 14,677 13,191 The amounts of decreases in unrecognized benefits relating to settlements with taxing authorities (3,575 ) (4,550 ) — Reduction in unrecognized tax benefits due to the lapse of applicable statute of limitation (3,973 ) (1,725 ) (2,358 ) Balance of unrecognized tax benefits at end of year $ 74,799 $ 50,953 $ 38,162 At December 31, 2019 , 2018 and 2017 , there were $73.6 million , $47.3 million , and $28.5 million , respectively, of unrecognized tax benefits recorded to Other liabilities and $1.2 million , $3.6 million and $9.7 million recorded to Other current liabilities for 2019, 2018 and 2017, respectively. Of the 2019 balance, $24.7 million recorded to Other liabilities and $1.2 million recorded to Other current liabilities are associated with Frutarom, of which $13.8 million was recorded within the purchase accounting measurement period that ended in the third quarter of 2019. If these unrecognized tax benefits were recognized, all the benefits and related interest and penalties would be recorded as a benefit to income tax expense. For the year ended December 31, 2019 , the Company increased its liabilities for interest and penalties by $11.0 million , net, reduced its liabilities for interest and penalties by $1.1 million , net for the year ended 2018, and increased its liabilities for interest and penalties by $3.0 million , net for the year ended 2017 . At December 31, 2019 , 2018 and 2017 , the Company had accrued $14.0 million , $3.0 million and $2.8 million , respectively, of interest and penalties classified as Other liabilities and $1.3 million in 2017 recorded to Other current liabilities. No such liabilities were accrued for the year ended December 31, 2019 and 2018. Of the 2019 balance, $7.8 million was associated with Frutarom, of which $6.6 million was recorded within the purchase accounting measurement period that ended in the third quarter of 2019. As of December 31, 2019 , the Company’s aggregate provision for unrecognized tax benefits, including interest and penalties, was $88.8 million , associated with various tax positions principally asserted in foreign jurisdictions, none of which is individually material. Of this total, $33.7 million is associated with Frutarom, of which $20.4 million was recorded within the purchase accounting measurement period that ended in the third quarter of 2019. Other Tax benefits credited to Shareholders’ equity were $0.1 million for the year ended December 31, 2019 , de minimis for the year ended December 31, 2018, and $0.1 million for the year ended December 31, 2017 associated with stock option exercises and PRSU dividends. The Company regularly repatriates earnings from non-U.S. subsidiaries. In the fourth quarter of 2018, the Company changed its assertion as part of its final analysis under Staff Accounting Bulletin No. 118, consistent with the Company’s need to repatriate funds for debt repayment purposes. As the Company repatriates these funds to the U.S. they will be required to pay income taxes in certain U.S. states and applicable foreign withholding taxes during the period when such repatriation occurs. Accordingly, as of December 31, 2019, the Company had a deferred tax liability of $46.1 million for the effect of repatriating the funds to the U.S. We reversed a deferred tax liability of $43.7 million associated with Frutarom in the purchase accounting measurement period as we intend to indefinitely reinvest the earnings in the Frutarom subsidiaries to fund local operations and/or capital projects. The Company has ongoing income tax audits and legal proceedings which are at various stages of administrative or judicial review, of which the material items are discussed below. In addition, the Company has other ongoing tax audits and legal proceedings that relate to indirect taxes, such as value-added taxes, capital tax, sales and use and property taxes, which are discussed in Note 20 . The Company also has several other tax audits in process and has open tax years with various taxing jurisdictions that range primarily from 2009 to 2018 . Based on currently available information, the Company does not believe the ultimate outcome of any of these tax audits and other tax positions related to open tax years, when finalized, will have a material impact on its financial position.

Leases (Notes)

Leases (Notes)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases	LEASES The Company has leases for corporate offices, manufacturing facilities, research and development facilities, and certain transportation and office equipment, all of which are operating leases. The Company's leases have remaining lease terms of up to 40 years , some of which include options to extend the leases for up to 5 years . The components of lease expense were as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Operating lease cost $ 52,213 Financing lease cost 2,235 The total rental expense, as calculated prior to the adoption of ASU 2016-02, was as follows: December 31, (DOLLARS IN THOUSANDS) 2018 2017 Rental Expense $ 42,365 $ 37,785 Supplemental cash flow information related to leases was as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flow from operating activities $ 51,444 Operating cash flow from finance leases 64 Financing cash flow from finance leases 2,204 Right-of-use assets obtained in exchange for lease obligations Operating leases 29,823 Finance leases 2,833 Supplemental balance sheet information related to leases was as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Operating Leases Operating lease right-of-use assets (1) $ 287,870 Other current liabilities (2) 37,744 Operating lease liabilities (3) 253,367 Total operating lease liabilities 291,111 Financing Leases Financing lease right-of-use assets (1) 4,792 Other current liabilities (2) 1,931 Financing lease liabilities (3) 2,525 Total financing lease liabilities 4,456 _______________________ (1) Presented in Other assets in the Consolidated Balance Sheet. (2) Presented in Other current liabilities in the Consolidated Balance Sheet. (3) Presented in Other liabilities in the Consolidated Balance Sheet . Weighted average remaining lease term and discount rate were as follows: December 31, 2019 Weighted average remaining lease term in years Operating leases 11.3 Finance leases 3.3 Weighted average discount rate Operating leases 3.89 % Finance leases 1.69 % Maturities of lease liabilities were as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Operating Leases Less than 1 Year $ 49,199 1-3 Years 81,829 3-5 Years 60,489 After 5 years 178,231 Less: Imputed Interest (78,637 ) Total $ 291,111 Financing Leases Less than 1 Year $ 2,036 1-3 Years 2,073 3-5 Years 486 After 5 years 26 Less: Imputed Interest (165 ) Total $ 4,456 Minimum rental payments under non-cancellable operating leases, as calculated prior to the adoption of ASU 2016-02, were as follows: (DOLLARS IN THOUSANDS) December 31, 2018 2019 $ 49,350 2020 42,156 2021 36,445 2022 32,174 2023 28,499 Thereafter 201,078 Total $ 389,700 Right of use assets by region were as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Operating Leases North America $ 143,556 Europe, Africa and Middle East 110,552 Greater Asia 20,492 Latin America 13,270 Consolidated $ 287,870 Financing Leases North America $ 246 Europe, Africa and Middle East 3,221 Greater Asia 516 Latin America 809 Consolidated $ 4,792

Revenue Recognition (Notes)

Revenue Recognition (Notes)	12 Months Ended
	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenue Recognition	REVENUE RECOGNITION On December 30, 2017, the first day of our 2018 fiscal year, the Company adopted ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)". Under Topic 606 (the "Revenue Standard"), revenue is recognized to reflect the transfer of goods or services to customers in an amount that reflects the consideration to which we expect to be entitled in exchange for those goods or services. As the Company adopted the Revenue Standard using the modified retrospective method effective the first day of its 2018 fiscal year, results for its 2018 fiscal year are presented under the Revenue Standard while prior period amounts are not adjusted and continue to be reported in accordance with the Company's historic accounting under ASC Topic 605, which required that revenue was accounted for when the earnings process was complete. The Company recognizes revenue when control of the promised goods is transferred to its customers in an amount that reflects the consideration it expects to be entitled to in exchange for those goods. Sales, value added, and other taxes the Company collects are excluded from revenues. The Company receives payment in accordance with standard customer terms. The following table presents the Company's revenues disaggregated by product categories: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 (a) Flavor Compounds $ 2,850,498 $ 1,990,985 $ 1,632,166 Fragrance Compounds 1,543,834 1,496,493 1,424,612 Ingredients 745,752 490,061 341,941 Total revenues $ 5,140,084 $ 3,977,539 $ 3,398,719 _______________________ (a) Prior period amounts have not been adjusted based on the modified retrospective method. The following table presents the Company's revenues disaggregated by region, based on the region of their customers: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 (a) Europe, Africa and Middle East $ 2,081,758 $ 1,396,316 $ 1,065,596 Greater Asia 1,162,992 991,015 903,546 North America 1,170,497 1,010,126 901,821 Latin America 724,837 580,082 527,756 Total revenues $ 5,140,084 $ 3,977,539 $ 3,398,719 _______________________ (a) Prior period amounts have not been adjusted based on the modified retrospective method. Flavor and Fragrance Compounds Revenues The Company accounts for a contract when it has approval and commitment from both parties, the rights of the parties and payment terms (which vary by customer) are identified, the contract has commercial substance, and collectability of consideration is probable. Consistent with the Company's past practice, the amount of revenue recognized is adjusted at the time of sale for expected discounts and rebates (“Variable Consideration”). The Company generates revenues primarily by manufacturing customized taste and scent compounds for the exclusive use of our customers. The Company combines the shipment of goods with their manufacture to account for both shipment and manufacture as the sole performance obligation. With respect to the vast majority of the Company’s contracts for Compounds products, the Company recognizes a sale at the point in time when it ships the product from its manufacturing facility to its customer, as this is the time when control of the goods has transferred to the customer. The amount of consideration received and revenue recognized is impacted by the Variable Consideration the Company has agreed with its customers. The Company estimates Variable Consideration amounts for each customer based on the specific agreement, an analysis of historical volumes and the current activity with that customer. The Company reassesses its estimates of Variable Consideration at each reporting date throughout the contract period and updates the estimate until the uncertainty is resolved. During the current period, changes to estimates of Variable Consideration have been immaterial. With respect to a small number of contracts for the sale of Compounds products, the Company recognizes revenue over time as it manufactures customized compounds that do not have an alternative use and for which the contracts provide the Company with an enforceable right to payment, including a reasonable profit, at all times during the contract term commencing with the manufacturing of the goods. When revenue is recognized over time, the amount of revenue recognized is based on the extent of progress towards completion of the promised goods. The Company generally uses the output method to measure progress for its contracts as this method reflects the transfer of goods to the customer. Once customization begins, the manufacturing process is generally completed within a two week period. Due to the short time frame for production, there is little estimation uncertainty in the process. In addition, due to the customized nature of the Company's products, returns are not material. Ingredients Revenues The Company accounts for a contract when it has approval and commitment from both parties, the rights of the parties and payment terms (which vary by customer) are identified, the contract has commercial substance, and collectability of consideration is probable. The Company generates revenues primarily by manufacturing Ingredients products for the use of our customers. The Company combines the shipment of goods with their manufacture to account for both shipment and manufacture as the sole performance obligation. Generally, the Company recognizes a sale at the time when it ships the product from their manufacturing facility to their customer, as this is the point when control of the goods or services has transferred to the customer. The amount of consideration received and revenue recognized is impacted by discounts offered to its customers. The Company estimates discounts based on an analysis of historical experience and current activity. The Company assesses its estimates of discounts at each reporting date throughout the contract period and updates its estimates until the uncertainty has been resolved. During the current period, changes to estimates of discounts have been immaterial. Contract Asset and Accounts Receivable With respect to a small number of contracts for the sale of compounds, the Company has an “enforceable right to payment for performance to date” and as the products do not have an alternative use, the Company recognizes revenue for these contracts over time and records a contract asset using the output method. The output method recognizes revenue on the basis of direct measurements of the value to the customer of the goods or services transferred to date relative to the remaining goods or services promised under the contract. The following table reflects the balances in the Company's contract assets, accounts receivable and contract liabilities for the periods ended December 31, 2019 and December 31, 2018 : December 31, (DOLLARS IN THOUSANDS) 2019 2018 Receivables (included in Trade receivables) $ 884,428 $ 946,938 Contract asset - Short term 2,736 487 Contract liabilities - Short term 11,107 1,006

Net Income Per Share

Net Income Per Share	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Net Income Per Share	NET INCOME PER SHARE Basic and diluted net income per share is based on the weighted average number of shares outstanding. A reconciliation of shares used in the computation of basic and diluted net income per share is as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Net Income Net income attributable to IFF stockholders $ 455,873 $ 337,302 $ 295,665 Less: Increase in redemption value of redeemable noncontrolling interests in excess of earnings allocated (2,097 ) (2,848 ) — Net income available to IFF stockholders $ 453,776 $ 334,454 $ 295,665 Shares Weighted average common shares outstanding (basic) (1) 111,966 87,551 79,070 Adjustment for assumed dilution (2) : Stock options and restricted stock awards 356 303 300 SPC portion of the TEUs 985 267 — Weighted average shares assuming dilution (diluted) 113,307 88,121 79,370 Net Income per Share Net income per share - basic $ 4.05 $ 3.81 $ 3.73 Net income per share - dilutive 4.00 3.79 3.72 _______________________ (1) For the year ended December 31, 2019 and 2018 , the TEUs were assumed to be outstanding at the minimum settlement amount for weighted-average shares for basic earnings per share. See below for details. (2) Effect of dilutive securities includes dilution under stock plans and incremental impact of TEUs. See below for details. As discussed in Note 8 , the Company issued 16,500,000 TEUs, consisting of a prepaid SPC and a senior amortizing note, for net proceeds of approximately $800.2 million on September 17, 2018. For the periods outstanding, the SPC portion of the TEUs were assumed to be settled at the minimum settlement amount of 0.3134 shares per SPC for weighted-average shares for basic earnings per share. For diluted earnings per share, the shares were assumed to be settled at a conversion factor based on the VWAP per share of the Company’s common stock not to exceed 0.3839 and 0.3711 shares per SPC as of December 31, 2019 and 2018 , respectively. The Company has issued shares of Purchased Restricted Stock ("PRS") and Purchased Restricted Stock Units (“PRSUs”) which contain nonforfeitable rights to dividends and thus are considered participating securities which are required to be included in the computation of basic and diluted earnings per share pursuant to the two-class method. The two-class method was not presented since the difference between basic and diluted net income per share for both common shareholders, PRS and PRSU holders was less than $0.01 per share for each year and the number of PRS and PRSUs outstanding as of December 31, 2019 , 2018 and 2017 was immaterial. Net income allocated to such PRS and PRSUs during 2019 , 2018 and 2017 was approximately $1.0 million , $1.0 million and $1.0 million , respectively. An immaterial amount of Stock-Settled Appreciation Rights (“SSARs”) were excluded from the computation of diluted net income per share at December 31, 2019 , 2018 and 2017 .

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Shareholders' Equity	TANGIBLE EQUITY UNITS On September 17, 2018, the Company issued and sold 16,500,000 , 6.00% TEUs at $50 per unit and received proceeds of $800.2 million , net of discounts and issuance costs of $24.8 million . Each TEU is comprised of: (i) a prepaid SPC to be settled by delivery of a specified number of shares of the Company's common stock, and (ii) a senior amortizing note (“Amortizing Note”), with an initial principal amount of $8.45 and a final installment payment date of September 15, 2021. The Company pays equal quarterly cash installments of $0.75 per Amortizing Note on March 15, June 15, September 15, and December 15 of each year, with the exception of the first installment payment of $0.7333 per Amortizing Note which was due on December 15, 2018. In the aggregate, the annual quarterly cash installments will be equivalent to 6.00% per year. Each installment payment constitutes a payment of interest and a partial repayment of principal, computed at an annual rate of 3.79% . Each TEU may be separated by a holder into its constituent SPC and Amortizing Note after the initial issuance date of the TEUs, and the separate components may be combined to create a TEU after the initial issuance date, in accordance with the terms of the SPC. The TEUs are listed on the New York Stock Exchange under the symbol “IFFT”. The proceeds from the issuance of the TEUs were allocated to equity and debt based on the relative fair value of the respective components of each TEU as follows: (IN MILLIONS, EXCEPT FAIR VALUE PER TEU) SPC Amortizing Note Total Fair Value per TEU $ 41.5 $ 8.5 $ 50.0 Gross Proceeds $ 685.5 $ 139.5 $ 825.0 Less: Issuance costs 20.4 4.4 24.8 Net Proceeds $ 665.1 $ 135.1 $ 800.2 The net proceeds of the SPCs were recorded as additional paid in capital, net of issuance costs. The net proceeds of the Amortizing Notes were recorded as debt, with deferred financing costs recorded as a reduction of the carrying amount of the debt in the Company's consolidated balance sheet. Deferred financing costs related to the Amortizing Notes are amortized through the maturity date using the effective interest rate method. Unless settled early at the holder’s or the Company's election, each SPC will automatically settle on September 15, 2021 for a number of shares of common stock per SPC based on the 20 day volume-weighted average price (“VWAP”) of the Company's common stock as follows: VWAP of IFF Common Stock Common Stock Issued Equal to or greater than $159.54 0.3134 shares (minimum settlement rate) Less than $159.54, but greater than $130.25 $50 divided by VWAP Less than or equal to $130.25 0.3839 shares (maximum settlement rate) At any time prior to the second scheduled trading day immediately preceding September 15, 2021, any holder of an SPC may settle any or all of its SPCs early, and the Company will deliver 0.3134 shares of its common stock for each SPC, subject to adjustment. Additionally, the SPCs may be redeemed in the event of a fundamental change as defined in the SPC. Dividends Cash dividends declared per share were $2.96 , $2.84 and $2.66 in for the years ended December 31, 2019 , 2018 and 2017 , respectively. The Consolidated Balance Sheet reflects $80.0 million of dividends payable at December 31, 2019 . This amount relates to a cash dividend of $0.75 per share declared in December 2019 and paid in January 2020 . Dividends declared, but not paid as of December 31, 2018 and December 31, 2017 were $77.8 million ( $0.73 per share) and $54.4 million ( $0.69 per share), respectively. Share Repurchases In December 2012, the Board of Directors authorized a $250.0 million share repurchase program, which commenced in the first quarter of 2013. In August 2015, the Board of Directors approved an additional $250 million share repurchase authorization and extension through December 31, 2017. Based on the total remaining amount of $56.1 million available under the amended repurchase program as of October 31, 2017, the Board of Directors re-approved on November 1, 2017 a $250.0 million share repurchase authorization and extension for a total value of $300.0 million available under the program, which expires on November 1, 2022 . A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is summarized as follows: (DOLLARS IN THOUSANDS) Shares Repurchased Weighted- Average Price per Share Dollar Amount Repurchased Year Ended December 31, 2018 108,109 $ 143.15 $ 15,475 Year Ended December 31, 2017 459,264 126.44 58,069 Based on the total remaining amount of $279.7 million available under the repurchase program, 2,213,425 shares, or 2.0% of shares outstanding (based on the market price and weighted average shares outstanding as of December 31, 2019 ) could be repurchased under the program as of December 31, 2019 . The following tables present changes in the accumulated balances for each component of other comprehensive income, including current period other comprehensive income and reclassifications out of accumulated other comprehensive income: (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive loss, net of tax, as of December 31, 2018 $ (396,996 ) $ 4,746 $ (309,977 ) $ (702,227 ) OCI before reclassifications 23,953 4,969 (45,599 ) (16,677 ) Amounts reclassified from AOCI — (7,647 ) 9,657 2,010 Net current period other comprehensive income (loss) 23,953 (2,678 ) (35,942 ) (14,667 ) Accumulated other comprehensive loss, net of tax, as of December 31, 2019 $ (373,043 ) $ 2,068 $ (345,919 ) $ (716,894 ) (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2017 $ (297,416 ) $ (10,332 ) $ (329,734 ) $ (637,482 ) OCI before reclassifications (99,580 ) 8,011 9,717 (81,852 ) Amounts reclassified from AOCI — 7,067 10,040 17,107 Net current period other comprehensive income (loss) (99,580 ) 15,078 19,757 (64,745 ) Accumulated other comprehensive loss, net of tax, as of December 31, 2018 $ (396,996 ) $ 4,746 $ (309,977 ) $ (702,227 ) (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2016 $ (352,025 ) $ 7,604 $ (335,674 ) $ (680,095 ) OCI before reclassifications 66,826 (14,782 ) (7,941 ) 44,103 Amounts reclassified from AOCI (12,217 ) (a) (3,154 ) 13,881 (1,490 ) Net current period other comprehensive income (loss) 54,609 (17,936 ) 5,940 42,613 Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2017 $ (297,416 ) $ (10,332 ) $ (329,734 ) $ (637,482 ) (a) Represents a foreign currency exchange gain from the release of a currency translation adjustment upon the liquidation of a foreign entity in 2017. The following table provides details about reclassifications out of AOCI to the Consolidated Statement of Comprehensive Income: Year Ended December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Affected Line Item in the Consolidated Statement of Comprehensive Income (Losses) gains on derivatives qualifying as hedges Foreign currency contracts $ 9,719 $ (7,089 ) $ 4,506 Cost of goods sold Interest rate swaps (857 ) (864 ) (789 ) Interest expense Tax (1,215 ) 886 (563 ) Provision for income taxes Total $ 7,647 $ (7,067 ) $ 3,154 Total, net of income taxes (Losses) gains on pension and postretirement liability adjustments Prior service cost $ 6,644 $ 7,752 $ 7,040 (a) Actuarial losses (19,032 ) (20,645 ) (24,699 ) (a) Tax 2,731 2,853 3,778 Provision for income taxes Total $ (9,657 ) $ (10,040 ) $ (13,881 ) Total, net of income taxes _______________________ (a) The amortization of prior service cost and actuarial loss is included in the computation of net periodic benefit cost. Refer to Note 16 to the Consolidated Financial Statements for additional information regarding net periodic benefit cost.

Stock Compensation Plans

Stock Compensation Plans	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Stock Compensation Plans	STOCK COMPENSATION PLANS The Company has various equity plans under which its officers, senior management, other key employees and Board of Directors may be granted options to purchase IFF common stock or other forms of stock-based awards. Beginning in 2004, the Company granted Restricted Stock Units (“RSUs”) as the principal element of its equity compensation for all eligible U.S.-based employees and a majority of eligible overseas employees. Vesting of the RSUs is solely time based; the vesting period is primarily 3 years from date of grant. For a small group of employees, primarily overseas, the Company granted stock options prior to 2008. The cost of all employee stock-based awards are principally recognized on a straight-line attribution basis over their respective vesting periods, net of estimated forfeitures. Total stock-based compensation expense included in the Consolidated Statement of Income and Comprehensive Income was as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Equity-based awards $ 34,482 $ 29,401 $ 26,567 Liability-based awards 4,128 2,517 6,014 Total stock-based compensation 38,610 31,918 32,581 Less tax benefit (7,305 ) (6,556 ) (5,659 ) Total stock-based compensation, net of tax $ 31,305 $ 25,362 $ 26,922 The shareholders of the Company approved the Company’s 2015 Stock Award and Incentive Plan (the “2015 Plan”) on May 6, 2015. The 2015 Plan replaced the Company’s 2010 Stock Award and Incentive Plan (the “2010 Plan”) and provides the source for future deferrals of cash into deferred stock under the Company’s Deferred Compensation Plan (with the Deferred Compensation Plan being deemed a subplan under the 2015 Plan for the sole purpose of funding deferrals under the IFF Share Fund). Under the 2015 Plan, a total of 1,500,000 shares are authorized for issuance in addition to 1,552,694 shares remaining available under the 2010 plan that were rolled into the 2015 Plan. At December 31, 2019 , 928,326 shares were subject to outstanding awards and 1,461,768 shares remained available for future awards under all of the Company’s equity award plans, including the 2015 Plan (excluding shares not yet issued under open cycles of the Company’s Long-Term Incentive Plan). The Company offers a Long-Term Incentive Plan (“LTIP”) for senior management. The targeted payout is 50% cash and 50% IFF common stock at the end of the three -year cycle and provides for segmentation in which one-fourth of the award vests during each twelve-month period, with the final one-fourth segment vesting over the full three-year period. Up to and including the 2018-2020 cycle, the LTIP awards were earned based upon the achievement of: (i) defined Economic Profit ("EP") targets (representing one-third of the award value), and (ii) the Company's performance ranking of Total Shareholder Return as a percentile of the S&P 500 ("Relative TSR") (representing two-thirds of the award value). Beginning with the 2019-2021 cycle the LTIP awards are earned based upon the achievement of: (i) Relative TSR targets (now representing one-half of the award value), and (ii) the Company's achievement of a defined Leverage Ratio (representing one-half of the award value). EP measures operating profitability after considering (i) all operating costs, (ii) income taxes and (iii) a charge for the capital employed in the business. The Leverage Ratio measures Net debt as compared to a measure profitability. When the award is granted, 50% of the target dollar value of the award is converted to a number of “notional” shares based on the closing price at the beginning of the cycle. For those shares whose payout is based on Relative TSR, compensation expense is recognized using a graded-vesting attribution method, while compensation expense for the remainder of the performance shares (EP or Leverage Ratio targets for the applicable cycle) is recognized on a straight-line basis over the vesting period based on the probable outcome of the performance condition. The 2015 - 2017 cycle concluded at the end of 2017 and an aggregate 46,091 shares of common stock were issued in March 2017 . The 2016 - 2018 cycle concluded at the end of 2018 and an aggregate 25,394 shares of common stock were issued in March 2019 . The 2017 - 2019 cycle concluded at the end of 2019 and an aggregate 14,579 shares of common stock will be issued in March 2020 . In 2006, the Board of Directors approved the Equity Choice Program (the “Program”) for senior management. This program continues under the 2015 Plan. Eligible employees can choose from among three equity alternatives and will be granted such equity awards up to certain dollar awards depending on the participant’s employment grade level. A participant may choose among (1) SSARs, (2) RSUs or (3) PRSUs. SSARs and Options SSARs are a contractual right to receive the value, in shares of Company stock, of the appreciation in our stock price from the grant date to the date the SSARs are exercised by the participant. SSARs granted become exercisable on the third anniversary of the grant date and have a maximum term of 7 years . SSARs do not require a financial investment by the SSARs grantee. No SSARs were granted in 2017 . Stock options require the participant to pay the exercise price at the time they exercise their stock options. No stock options were granted in 2019 , 2018 or 2017 . SSARs and options activity was as follows: (SHARE AMOUNTS IN THOUSANDS) Shares Subject to SSARs/Options Weighted Average Exercise Price SSARs/ Options Exercisable December 31, 2018 12 $ 117.21 4 Granted 6 137.82 Exercised (3 ) 60.39 Canceled — — December 31, 2019 15 $ 138.73 1 The weighted average exercise price of SSARs and options exercisable at December 31, 2019 , 2018 and 2017 were $118.10 , $64.96 and $60.39 , respectively. SSARs and options outstanding at December 31, 2019 was as follows: Price Range Number Outstanding (in thousands) Weighted Average Remaining Contractual Life (in years) Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Over $115 15 5.68 $ 138.73 $ — SSARs and options exercisable as of December 31, 2019 was as follows: Price Range Number Exercisable (in thousands) Weighted Average Remaining Contractual Life (in years) Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Over $115 1 2.34 $ 118.10 $ 2 The total intrinsic value of options/SSARs exercised during 2019 , 2018 and 2017 totaled $0.2 million , $0.1 million and $1.2 million , respectively. As of December 31, 2019 , there was $0.3 million of total unrecognized compensation cost related to non-vested SSARs granted; such cost is expected to be recognized over a period of 1.8 years . Restricted Stock Units The Company has granted RSUs to eligible employees and members of the Board of Directors. Such RSUs are subject to forfeiture if certain conditions are not met. RSUs principally vest 100% at the end of 3 years and contain no performance criteria provisions. An RSU’s fair value is calculated based on the market price of the Company's stock at date of grant, with an adjustment to reflect the fact that such awards do not participate in dividend rights. The aggregate fair value is amortized to expense ratably over the vesting period. RSU activity was as follows: Number of Shares (in thousands) Weighted Average Grant Date Fair Value Per Share December 31, 2018 448 $ 125.99 Granted 230 128.98 Vested (164 ) 116.80 Forfeited (17 ) 130.85 December 31, 2019 497 $ 130.24 The total fair value of RSUs that vested during the year ended December 31, 2019 was $22.4 million . As of December 31, 2019 , there was $27.8 million of total unrecognized compensation cost related to non-vested RSUs granted under the equity incentive plans; such cost is expected to be recognized over a weighted average period of 1.8 years . Purchased Restricted Stock and Purchased Restricted Stock Units In 2014, the grant of awards under the Equity Choice program provided for eligible employees to purchase restricted shares of IFF common stock and deposit them into an escrow account. For each share deposited in escrow by the eligible employee, the Company matched with a grant of a share of restricted stock or, for non-U.S. participants, a restricted stock unit. The shares of restricted stock and restricted stock units generally vest on the third anniversary of the grant date, are subject to continued employment and other specified conditions, and pay dividends if and when paid by the Company. Holders of restricted stock have, in most instances, all of the rights of stockholders, except that they may not sell, assign, pledge or otherwise encumber such shares. The PRSUs provide no such rights. During 2015, the Company modified the program so that all participants, including U.S. participants, began to receive a restricted stock unit instead of a share of restricted stock. Restricted stock units pay dividend equivalents and do not have voting rights. The following table summarizes the Company's PRSU activity for the years ended December 31, 2019 , 2018 and 2017 : (DOLLARS IN MILLIONS) Issued Shares Aggregate Purchase Price Covered Shares 2019 61,991 $ 8.5 30,996 2018 66,674 9.3 33,337 2017 41,801 5.8 20,901 PRSU activity was as follows: (SHARE AMOUNTS IN THOUSANDS) Number of Shares Weighted Average Grant Date Fair Value Per Share December 31, 2018 162 $ 132.96 Granted 62 137.82 Vested (54 ) 119.81 Forfeited (2 ) 138.97 December 31, 2019 168 $ 138.96 The total fair value of PRSUs that vested during the year ended December 31, 2019 was $7.1 million . As of December 31, 2019 , there was $10.7 million of total unrecognized compensation cost related to non-vested PRSUs granted under the equity incentive plans; such cost is expected to be recognized over a weighted average period of 1.8 years . Liability Awards The Company has granted cash-settled RSUs ("Cash RSUs") to eligible employees that are paid out 100% in cash upon vesting. Such RSUs are subject to forfeiture if certain conditions are not met. Cash RSUs principally vest 100% at the end of three years and contain no performance criteria provisions. A Cash RSU's fair value is calculated based on the market price of the Company's stock at the date of the closing period and is accounted for as a liability award. The aggregate fair value is amortized to expense ratably over the vesting period. Cash RSU activity was as follows: (SHARE AMOUNTS IN THOUSANDS) Cash RSUs Weighted Average Fair Value Per Share December 31, 2018 92 $ 132.23 Granted 37 126.35 Vested (32 ) 134.68 Forfeited (2 ) 132.32 December 31, 2019 95 $ 126.35 The total fair value of Cash RSUs that vested during the year ended December 31, 2019 was $4.4 million . As of December 31, 2019 , there was $5.2 million of total unrecognized compensation cost related to non-vested Cash RSUs granted under the equity incentive plans; such cost is expected to be recognized over a weighted average period of 1.8 years . The aggregate compensation cost will be adjusted based on changes in the Company’s stock price.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION The Company is organized into three reportable operating segments, Taste, Scent and Frutarom; these segments align with the internal structure used to manage these businesses. Taste is comprised of Flavor Compounds which are sold to the food and beverage industries for use in consumer products such as prepared foods, beverages, dairy, food and sweet products. Scent is comprised of (1) Fragrance Compounds, which are ultimately used by our customers in two broad categories: Fine Fragrances, including perfumes and colognes, and Consumer Fragrances, including fragrance compounds for personal care (e.g., soaps), household products (e.g., detergents and cleaning agents) and beauty care, including toiletries; (2) Fragrance Ingredients, consisting of synthetic and natural ingredients that can be combined with other materials to create unique fine fragrance and consumer compounds; and (3) Cosmetic Active Ingredients, consisting of active and functional ingredients, botanicals and delivery systems to support our customers’ cosmetic and personal care product lines. Major fragrance customers include the cosmetics industry, including perfume and toiletries manufacturers, and the household products industry, including manufacturers of soaps, detergents, fabric care, household cleaners and air fresheners. Frutarom creates and manufactures a naturals-focused suite of flavor compounds, functional foods and specialty fine ingredients, largely targeting small, local and regional customers. Frutarom’s products are focused on the following principal areas: Taste, Savory Solutions, Inclusions, Fine Ingredients, and Natural Product Solutions. The Company's Chief Operating Decision Maker evaluates the performance of these reportable operating segments based on segment profit which is defined as operating profit before restructuring, global expenses (as discussed below) and certain non-recurring items, Interest expense, Other income (expense), net and Taxes on income. The Global expenses caption represents corporate and headquarter-related expenses which include legal, finance, human resources, certain incentive compensation expenses and other R&D and administrative expenses that are not allocated to individual reportable operating segments. Reportable segment information is as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Net sales Taste $ 1,731,919 $ 1,737,349 $ 1,632,166 Scent 1,922,717 1,880,630 1,766,553 Frutarom 1,485,448 359,560 N/A Consolidated $ 5,140,084 $ 3,977,539 $ 3,398,719 December 31, (DOLLARS IN THOUSANDS) 2019 2018 Segment assets Taste $ 2,222,154 $ 2,024,573 Scent 2,549,113 2,340,131 Frutarom 8,306,003 7,961,538 Global assets 210,141 563,153 Consolidated $ 13,287,411 $ 12,889,395 December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Segment profit: Taste $ 382,590 $ 395,190 $ 360,483 Scent 333,522 329,548 318,954 Frutarom 126,804 27,358 N/A Global expenses (49,836 ) (74,730 ) (60,810 ) Operational Improvement Initiatives (a) (2,267 ) (2,169 ) (1,802 ) Acquisition Related Costs (b) — 1,289 (20,389 ) Integration Related Costs (c) (55,160 ) (7,188 ) (4,179 ) Legal Charges/Credits, net (d) — — (1,000 ) Tax Assessment (e) — — (5,331 ) Restructuring and Other Charges, net (f) (29,765 ) (4,086 ) (19,711 ) (Losses) gains on Sale of Assets (2,367 ) 1,177 184 FDA Mandated Product Recall (g) (250 ) 7,125 (11,000 ) UK Pension Settlement Charges (h) — — (2,769 ) Frutarom Acquisition Related Costs (i) (5,940 ) (89,632 ) — Compliance Review & Legal Defense Costs (j) (11,314 ) — — N&B Transaction Related Costs (k) (20,747 ) — — Operating Profit 665,270 583,882 552,630 Interest expense (138,221 ) (132,558 ) (65,363 ) Loss on extinguishment of debt — (38,810 ) — Other income, net 30,403 35,243 49,778 Income before taxes $ 557,452 $ 447,757 $ 537,045 Profit margin Taste 22.1 % 22.7 % 22.1 % Scent 17.3 % 17.5 % 18.1 % Frutarom 8.5 % 7.6 % N/A Consolidated 12.9 % 14.7 % 16.3 % (a) For 2019, represents accelerated depreciation related to plant relocations in India and China. For 2018, represents accelerated depreciation in India and Taiwan asset write off. For 2017, represents accelerated depreciation and idle labor costs in Hangzhou, China. (b) For 2018, represents adjustments to the contingent consideration payable for PowderPure, and transaction costs related to Fragrance Resources and PowderPure within Selling and administrative expenses. For 2017, represents the amortization of inventory "step-up" included in Cost of goods sold and transaction costs related to the acquisition of Fragrance Resources and PowderPure within Selling and administrative expenses. (c) For 2019 and 2018, represents costs related to the integration of the Frutarom acquisition, principally advisory services. For 2017, represents costs related to the integration of the David Michael and Fragrance Resources acquisitions. (d) Represents an additional charge related to litigation settlement. (e) Represents the reserve for payment of a tax assessment related to commercial rent for prior periods. (f) For 2019, represents costs primarily related to the Frutarom Integration Initiative, the 2019 Severance Program, including severance related to outsourcing the IT function. For 2018, represents severance costs related to the 2017 Productivity Program and costs associated with the termination of agent relationships in a subsidiary. For 2017, represents severance costs related to the 2017 Productivity Program. (g) For 2019, represents additional claims that management will pay to co-packers. For 2018, principally represents recoveries from the supplier for the third and fourth quarter, partially offset by final payments to the customer made for the effected product in the first quarter. For 2017, represents management's best estimate of losses related to the previously disclosed FDA mandated recall. (h) Represents pension settlement charges incurred in one of the Company's UK pension plans. (i) Represents transaction-related costs and expenses related to the acquisition of Frutarom. For 2019, amount primarily includes amortization for inventory "step-up" costs and transaction costs. For 2018, amount primarily includes $23.5 million of amortization for inventory "step-up" costs and $66.0 million of transaction costs included in Selling and administrative expenses. (j) Costs related to reviewing the nature of inappropriate payments and review of compliance in certain other countries. In addition, includes legal costs for related shareholder lawsuits. (k) Represents costs and expenses related to the pending transaction with Nutrition & Biosciences Inc. The Company has not disclosed revenues at a lower level than provided herein, such as revenues from external customers by product, as it is impracticable for it to do so. The Company had no customers that accounted for greater than 10% of consolidated net sales in 2019 and 2018 . The Company had one customer that accounted for greater than 10% of consolidated net sales in 2017 . The Company's largest customer had net sales of $336.1 million , $356.8 million and $358.5 million in 2019 , 2018 and 2017 , respectively. The majority of these sales were in the Scent reportable operating segment. Long-lived assets, net, by country, consisted as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 United States $ 382,659 $ 315,320 Netherlands 91,313 103,997 Singapore 68,751 73,544 China 188,194 178,502 Other 656,003 569,789 Consolidated $ 1,386,920 $ 1,241,152 Segment capital expenditures and depreciation and amortization consisted as follows: Capital Expenditures Depreciation and Amortization (DOLLARS IN THOUSANDS) 2019 2018 2017 2019 2018 2017 Taste $ 80,267 $ 70,028 $ 68,937 $ 56,674 $ 54,534 $ 53,534 Scent 92,077 82,206 53,089 65,386 64,018 59,951 Frutarom 55,356 12,878 N/A 194,956 47,738 N/A Global assets 8,278 4,982 6,947 6,314 7,502 4,482 Consolidated $ 235,978 $ 170,094 $ 128,973 $ 323,330 $ 173,792 $ 117,967 Net sales are attributed to individual regions based upon the destination of product delivery and are as follows: Net Sales by Geographic Area (DOLLARS IN THOUSANDS) 2019 2018 2017 Europe, Africa and Middle East $ 2,081,758 $ 1,396,316 $ 1,065,596 Greater Asia 1,162,992 991,015 903,546 North America 1,170,497 1,010,126 901,821 Latin America 724,837 580,082 527,756 Consolidated $ 5,140,084 $ 3,977,539 $ 3,398,719 Net Sales by Geographic Area (DOLLARS IN THOUSANDS) 2019 2018 2017 Net sales related to the U.S. $ 1,052,654 $ 952,550 $ 864,050 Net sales attributed to all foreign countries 4,087,430 3,024,989 2,534,669 No non-U.S. country had net sales in any period presented greater than 6% of total consolidated net sales. Pending change in Reportable Operating Segments As part of the Company's Frutarom Integration Initiative, the reportable operating segments have been realigned such that beginning in fiscal year 2020 there will be two reportable operating segments: Scent and Taste. The financial results presented in this Form 10-K reflect the Scent, Taste and Frutarom business segments prior to the realignment.

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2019
Retirement Benefits [Abstract]
Employee Benefits	EMPLOYEE BENEFITS The Company has pension and/or other retirement benefit plans covering approximately one-fifth of active employees. In 2007, the Company amended its U.S. qualified and non-qualified pension plans under which accrual of future benefits was suspended for all participants that did not meet the rule of 70 (age plus years of service equal to at least 70 as of December 31, 2007). Pension benefits are generally based on years of service and compensation during the final years of employment. Plan assets consist primarily of equity securities and corporate and government fixed income securities. Substantially all pension benefit costs are funded as accrued; such funding is limited, where applicable, to amounts deductible for income tax purposes. Certain other retirement benefits are provided by general corporate assets. The Company sponsors a qualified defined contribution plan covering substantially all U.S. employees. Under this plan, the Company matches 100% of participants’ contributions up to 4% of compensation and 75% of participants’ contributions from over 4% to 8% . Employees that are still eligible to accrue benefits under the pension plans are limited to a 50% match of up to 6% of the participants’ compensation. In addition to pension benefits, certain health care and life insurance benefits are provided to qualifying U.S. employees upon retirement from IFF. Such coverage is provided through insurance plans with premiums based on benefits paid. The Company does not generally provide health care or life insurance coverage for retired employees of foreign subsidiaries; such benefits are provided in most foreign countries by government-sponsored plans, and the cost of these programs is not material. The Company offers a non-qualified Deferred Compensation Plan ("DCP") for certain key employees and non-employee directors. Eligible employees and non-employee directors may elect to defer receipt of salary, incentive payments and Board of Directors’ fees into participant-directed investments which are generally invested by the Company in individual variable life insurance contracts it owns that are designed to informally fund savings plans of this nature. The cash surrender value of life insurance is based on the net asset values of the underlying funds available to plan participants. At December 31, 2019 and December 31, 2018 , the Consolidated Balance Sheet reflects liabilities of $50.9 million and $43.6 million , respectively, related to the DCP in Other liabilities and $28.2 million and $22.2 million , respectively, included in Capital in excess of par value related to the portion of the DCP that will be paid out in IFF shares. The total cash surrender value of life insurance contracts the Company owns in relation to the DCP and post-retirement life insurance benefits amounted to $47.6 million and $43.2 million at December 31, 2019 and 2018 , respectively, and are recorded in Other assets in the Consolidated Balance Sheet. The plan assets and benefit obligations of the defined benefit pension plans are measured at December 31 of each year. U.S. Plans Non-U.S. Plans (DOLLARS IN THOUSANDS) 2019 2018 2017 2019 2018 2017 Components of net periodic benefit cost Service cost for benefits earned (1) $ 1,378 $ 1,971 $ 2,175 $ 19,319 $ 18,738 $ 18,652 Interest cost on projected benefit obligation (2) 21,954 19,393 20,075 17,775 17,704 17,116 Expected return on plan assets (2) (27,927 ) (30,994 ) (35,577 ) (43,480 ) (50,546 ) (50,626 ) Net amortization of deferrals (2) 5,464 6,592 5,424 11,654 11,798 14,403 Settlements and curtailments (2) — — — 189 — 2,746 Net periodic benefit cost 869 (3,038 ) (7,903 ) 5,457 (2,306 ) 2,291 Defined contribution and other retirement plans 9,363 10,527 8,604 9,001 6,859 5,681 Total expense $ 10,232 $ 7,489 $ 701 $ 14,458 $ 4,553 $ 7,972 Changes in plan assets and benefit obligations recognized in OCI Net actuarial (gain) loss $ (3,140 ) $ 21,050 $ 61,865 $ 11,937 Recognized actuarial loss (5,421 ) (6,549 ) (12,479 ) (12,590 ) Prior service cost — — — 2,776 Recognized prior service (cost) credit (43 ) (43 ) 636 792 Currency translation adjustment — — 6,584 (16,978 ) Total (gain) loss recognized in OCI (before tax effects) $ (8,604 ) $ 14,458 $ 56,606 $ (14,063 ) _______________________ (1) Included as a component of Operating Profit. (2) Included as a component of Other Income (Expense), net. Postretirement Benefits (DOLLARS IN THOUSANDS) 2019 2018 2017 Components of net periodic benefit cost Service cost for benefits earned $ 568 $ 755 $ 718 Interest cost on projected benefit obligation 2,265 2,460 2,710 Net amortization and deferrals (4,919 ) (5,497 ) (4,913 ) Total credit $ (2,086 ) $ (2,282 ) $ (1,485 ) Changes in plan assets and benefit obligations recognized in OCI Net actuarial loss $ 3,941 $ (6,677 ) Recognized actuarial loss (1,132 ) (1,506 ) Prior service credit — (14,862 ) Recognized prior service credit 6,051 7,003 Total recognized in OCI (before tax effects) $ 8,860 $ (16,042 ) The amounts expected to be recognized in net periodic cost in 2020 are: (DOLLARS IN THOUSANDS) U.S. Plans Non-U.S. Plans Postretirement Benefits Actuarial loss recognition $ 7,388 $ 15,851 $ 1,367 Prior service cost (credit) recognition 43 (345 ) (5,964 ) The weighted-average actuarial assumptions used to determine expense at December 31 of each year are: U.S. Plans Non-U.S. Plans 2019 2018 2017 2019 2018 2017 Discount rate 4.31 % 3.69 % 4.19 % 2.22 % 2.15 % 2.14 % Expected return on plan assets 5.60 % 6.20 % 7.30 % 4.87 % 5.19 % 5.95 % Rate of compensation increase 3.25 % 3.25 % 3.25 % 1.93 % 1.98 % 1.97 % Changes in the postretirement benefit obligation and plan assets, as applicable, are detailed in the following table: U.S. Plans Non-U.S. Plans Postretirement Benefits (DOLLARS IN THOUSANDS) 2019 2018 2019 2018 2019 2018 Benefit obligation at beginning of year $ 562,043 $ 602,783 $ 957,935 $ 973,061 $ 59,625 $ 82,714 Service cost for benefits earned 1,378 1,971 19,319 18,738 568 755 Interest cost on projected benefit obligation 21,954 19,393 17,775 17,704 2,265 2,460 Actuarial (gain) loss 68,839 (33,284 ) 119,891 (29,433 ) 3,941 (6,677 ) Plan amendments — — — 2,776 — (14,862 ) Adjustments for expense/tax contained in service cost — — (1,333 ) (1,290 ) — — Plan participants’ contributions — — 2,803 2,047 437 435 Benefits paid (33,560 ) (32,093 ) (28,977 ) (33,862 ) (2,662 ) (5,200 ) Curtailments / settlements — — (3,455 ) (2,751 ) — — Translation adjustments — — 13,935 (49,027 ) — — Acquisitions/Transferred Liabilities — 3,273 — 48,356 — — Other — — 1,191 11,616 — — Benefit obligation at end of year $ 620,654 $ 562,043 $ 1,099,084 $ 957,935 $ 64,174 $ 59,625 Fair value of plan assets at beginning of year $ 532,381 $ 581,917 $ 896,782 $ 929,810 Actual return on plan assets 99,904 (23,339 ) 100,163 6,699 Employer contributions 3,683 3,524 20,031 18,238 Participants’ contributions — — 2,803 2,047 Benefits paid (33,560 ) (32,093 ) (28,977 ) (33,862 ) Settlements — — (3,455 ) (1,564 ) Translation adjustments — — 16,982 (47,247 ) Acquisitions/Transferred Assets — 2,372 — 21,672 Other — — 954 989 Fair value of plan assets at end of year $ 602,408 $ 532,381 $ 1,005,283 $ 896,782 Funded status at end of year $ (18,246 ) $ (29,662 ) $ (93,801 ) $ (61,153 ) The amounts recognized in the balance sheet are detailed in the following table: U.S. Plans Non-U.S. Plans (DOLLARS IN THOUSANDS) 2019 2018 2019 2018 Other assets $ 35,239 $ 20,949 $ 50,418 $ 54,434 Other current liabilities (4,193 ) (4,092 ) (1,179 ) (882 ) Retirement liabilities (49,292 ) (46,519 ) (143,040 ) (114,705 ) Net amount recognized $ (18,246 ) $ (29,662 ) $ (93,801 ) $ (61,153 ) The amounts recognized in AOCI are detailed in the following table: U.S. Plans Non-U.S. Plans Postretirement Benefits (DOLLARS IN THOUSANDS) 2019 2018 2019 2018 2019 2018 Net actuarial loss $ 142,828 $ 151,389 $ 376,991 $ 321,144 $ 15,436 $ 12,627 Prior service cost (credit) 108 151 (3,087 ) (3,926 ) (27,138 ) (33,189 ) Total AOCI (before tax effects) $ 142,936 $ 151,540 $ 373,904 $ 317,218 $ (11,702 ) $ (20,562 ) U.S. Plans Non-U.S. Plans (DOLLARS IN THOUSANDS) 2019 2018 2019 2018 Accumulated Benefit Obligation — end of year $ 618,486 $ 559,775 $ 1,062,515 $ 923,586 Information for Pension Plans with an ABO in excess of Plan Assets: Projected benefit obligation $ 55,714 $ 52,714 $ 656,574 $ 582,466 Accumulated benefit obligation 55,671 52,690 620,087 548,116 Fair value of plan assets 2,229 2,103 512,356 466,878 Weighted-average assumptions used to determine obligations at December 31 Discount rate 3.26 % 4.31 % 1.50 % 2.22 % Rate of compensation increase 3.25 % 3.25 % 2.48 % 1.91 % (DOLLARS IN THOUSANDS) U.S. Plans Non-U.S. Plans Postretirement Benefits Estimated Future Benefit Payments 2020 $ 37,152 $ 27,460 $ 3,808 2021 37,908 27,607 3,845 2022 38,411 28,169 3,805 2023 38,796 28,993 3,797 2024 38,831 30,142 3,891 2025 - 2029 189,425 169,438 19,442 Contributions Required Company Contributions in Following Year (2020) $ 4,387 $ 20,944 $ 3,808 The Company considers a number of factors in determining and selecting assumptions for the overall expected long-term rate of return on plan assets. The Company considers the historical long-term return experience of its assets, the current and expected allocation of its plan assets and expected long-term rates of return. The Company derives these expected long-term rates of return with the assistance of its investment advisors. The Company bases its expected allocation of plan assets on a diversified portfolio consisting of domestic and international equity securities, fixed income, real estate and alternative asset classes. The asset allocation is monitored on an ongoing basis. The Company considers a variety of factors in determining and selecting its assumptions for the discount rate at December 31. For the U.S. plans, the discount rate was based on the internal rate of return for a portfolio of high quality bonds rated Aa or higher by either Moody’s or Standard & Poor's with maturities that are consistent with the projected future benefit payment obligations of the plan. For the Non-U.S. Plans, the discount rates were determined by region and are based on high quality long-term corporate bonds. Consideration has been given to the duration of the liabilities in each plan when selecting the bonds to be used in determining the discount rate. The rate of compensation increase for all plans and the medical cost trend rate for the applicable U.S. plans are based on plan experience. The percentage of assets in the Company's pension plans, by type, is as follows: U.S. Plans Non-U.S. Plans 2019 2018 2019 2018 Cash and cash equivalents 1 % 1 % 1 % 3 % Equities 13 % 25 % 14 % 12 % Fixed income 86 % 74 % 37 % 36 % Property — % — % 8 % 8 % Alternative and other investments — % — % 40 % 41 % With respect to the U.S. plans, the expected return on plan assets was determined based on an asset allocation model using the current target allocation, real rates of return by asset class and an anticipated inflation rate. The target investment allocation is 20% equity securities and 80% fixed income securities. The expected annual rate of return for the non-U.S. plans employs a similar set of criteria adapted for local investments, inflation rates and in certain cases specific government requirements. The target asset allocation, for the non-U.S. plans, consists of approximately: 35% in fixed income securities; 35% in alternative investments; 15% in equity securities; and 15% in real estate. The following tables present the Company's plan assets for the U.S. and non-U.S. plans using the fair value hierarchy as of December 31, 2019 and 2018 . The plans’ assets were accounted for at fair value and are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company's assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of fair value assets and their placement within the fair value hierarchy levels. For more information on a description of the fair value hierarchy, see Note 17 . U.S. Plans for the Year Ended December 31, 2019 (DOLLARS IN THOUSANDS) Level 1 Level 2 Level 3 Total Cash Equivalents $ — $ 4,431 $ — $ 4,431 Fixed Income Securities Government & Government Agency Bonds — 19,427 — 19,427 Corporate Bonds — 112,137 — 112,137 Municipal Bonds — 8,460 — 8,460 Assets measured at net asset value (1) — — — 456,606 Total $ — $ 144,455 $ — $ 601,061 Receivables $ 1,347 Total $ 602,408 U.S. Plans for the Year Ended December 31, 2018 (DOLLARS IN THOUSANDS) Level 1 Level 2 Level 3 Total Cash Equivalents $ — $ 3,490 $ — $ 3,490 Fixed Income Securities Government & Government Agency Bonds — 17,827 — 17,827 Corporate Bonds — 96,566 — 96,566 Municipal Bonds — 8,138 — 8,138 Assets measured at net asset value (1) — — — 404,895 Total $ — $ 126,021 $ — $ 530,916 Receivables $ 1,465 Total $ 532,381 _______________________ (1) Investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the table above are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Balance Sheet. The total amount measured at net asset value includes approximately $80.4 million and $133.1 million in pooled equity funds and $376.0 million and $271.8 million in fixed income mutual funds for the years ended December 31, 2019 and 2018 , respectively. Non-U.S. Plans for the Year Ended December 31, 2019 (DOLLARS IN THOUSANDS) Level 1 Level 2 Level 3 Total Cash $ 5,921 $ — $ — $ 5,921 Equity Securities U.S. Large Cap 58,926 25,616 — 84,542 Non-U.S. Large Cap 24,720 — — 24,720 Non-U.S. Mid Cap 956 — — 956 Non-U.S. Small Cap 738 — — 738 Emerging Markets 27,374 — — 27,374 Fixed Income Securities U.S. Treasuries/Government Bonds 108 — — 108 U.S. Corporate Bonds — 32,013 — 32,013 Non-U.S. Treasuries/Government Bonds 117,890 — — 117,890 Non-U.S. Corporate Bonds 33,320 150,034 — 183,354 Non-U.S. Asset-Backed Securities — 33,654 — 33,654 Non-U.S. Other Fixed Income 2,553 — — 2,553 Alternative Types of Investments Insurance Contracts — 152,025 266 152,291 Derivative Financial Instruments — 65,016 — 65,016 Absolute Return Funds 3,431 154,463 — 157,894 Other — 2,330 30,183 32,513 Real Estate Non-U.S. Real Estate — — 83,746 83,746 Total $ 275,937 $ 615,151 $ 114,195 $ 1,005,283 Non-U.S. Plans for the Year Ended December 31, 2018 (DOLLARS IN THOUSANDS) Level 1 Level 2 Level 3 Total Cash $ 25,386 $ — $ — $ 25,386 Equity Securities U.S. Large Cap 35,929 11,340 — 47,269 Non-U.S. Large Cap 30,841 8,381 — 39,222 Non-U.S. Mid Cap 905 — — 905 Non-U.S. Small Cap 628 — — 628 Emerging Markets 22,608 — — 22,608 Fixed Income Securities U.S. Treasuries/Government Bonds 131 — — 131 U.S. Corporate Bonds — 29,682 — 29,682 Non-U.S. Treasuries/Government Bonds 137,267 5,494 — 142,761 Non-U.S. Corporate Bonds 30,893 85,841 — 116,734 Non-U.S. Asset-Backed Securities — 32,587 — 32,587 Non-U.S. Other Fixed Income 2,324 — — 2,324 Alternative Types of Investments Insurance Contracts — 152,947 254 153,201 Derivative Financial Instruments — 54,512 — 54,512 Absolute Return Funds 3,584 128,111 — 131,695 Other — 2,374 25,913 28,287 Real Estate Non-U.S. Real Estate — — 68,850 68,850 Total $ 290,496 $ 511,269 $ 95,017 $ 896,782 Cash and cash equivalents are primarily held in registered money market funds which are valued using a market approach based on the quoted market prices of identical instruments. Other cash and cash equivalents are valued daily by the fund using a market approach with inputs that include quoted market prices for similar instruments. Equity securities are primarily valued using a market approach based on the quoted market prices of identical instruments. Pooled funds are typically common or collective trusts valued at their net asset values (NAVs). Fixed income securities are primarily valued using a market approach with inputs that include broker quotes and benchmark yields. Derivative instruments are valued by the custodian using closing market swap curves and market derived inputs. Real estate values are primarily based on valuation of the underlying investments, which include inputs such as cost, discounted future cash flows, independent appraisals and market comparable data. Hedge funds are valued based on valuation of the underlying securities and instruments within the funds. Quoted market prices are used when available and NAVs are used for unquoted securities within the funds. Absolute return funds are actively managed funds mainly invested in debt and equity securities and are valued at their NAVs. The following table presents a reconciliation of Level 3 non-U.S. plan assets held during the year ended December 31, 2019 : Non-U.S. Plans (DOLLARS IN THOUSANDS) Real Estate Hedge Funds Total Ending balance as of December 31, 2018 $ 69,104 $ 25,913 $ 95,017 Actual return on plan assets 15,033 5,811 20,844 Purchases, sales and settlements (124 ) (1,542 ) (1,666 ) Ending balance as of December 31, 2019 $ 84,013 $ 30,182 $ 114,195 The following weighted average assumptions were used to determine the postretirement benefit expense and obligation for the years ended December 31: Expense Liability 2019 2018 2019 2018 Discount rate 4.30 % 3.70 % 3.30 % 4.30 % Current medical cost trend rate 7.50 % 7.75 % 7.25 % 7.50 % Ultimate medical cost trend rate 4.75 % 4.75 % 4.75 % 4.75 % Medical cost trend rate decreases to ultimate rate in year 2030 2030 2030 2030 The following table presents the sensitivity of disclosures to changes in selected assumptions for the year ended December 31, 2019 : (DOLLARS IN THOUSANDS) U.S. Pension Plans Non-U.S. Pension Plans Postretirement Benefit Plan 25 Basis Point Decrease in Discount Rate Change in PBO 14,613 55,415 N/A Change in ABO 14,534 55,374 1,944 Change in pension expense (102 ) 2,687 40 25 Basis Point Decrease in Long-Term Rate of Return Change in pension expense 1,248 1,935 N/A The Company contributed $20.0 million to its non-U.S. pension plans in 2019 . No contributions were made to the Company's qualified U.S. pension plans in 2019 . The Company made $3.7 million in benefit payments with respect to its non-qualified U.S. pension plan. In addition, $2.7 million of payments were made with respect to the Company's other postretirement plans.

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments	FINANCIAL INSTRUMENTS Fair Value Accounting guidance on fair value measurements specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company's market assumptions. These two types of inputs create the following fair value hierarchy: • Level 1 — Quoted prices for identical instruments in active markets. • Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. • Level 3 — Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable . This hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. The Company determines the fair value of structured liabilities (where performance is linked to structured interest rates, inflation or currency risks) using the London Interbank Offer Rate (“LIBOR”) swap curve and forward interest and exchange rates at period end. Such instruments are classified as Level 2 based on the observability of significant inputs to the model. The Company does not have any instruments classified as Level 3, other than those included in pension asset trusts included in Note 16 . These valuations take into consideration the Company's credit risk and its counterparties’ credit risk. The carrying value and the estimated fair values of financial instruments at December 31 consisted of the following: 2019 2018 (DOLLARS IN THOUSANDS) Carrying Value Fair Value Carrying Value Fair LEVEL 1 Cash and cash equivalents (1) $ 606,823 $ 606,823 $ 634,897 $ 634,897 LEVEL 2 Credit facilities and bank overdrafts (2) 3,131 3,131 4,695 4,695 Derivatives Derivative assets (3) 3,575 3,575 7,229 7,229 Derivative liabilities (3) 7,415 7,415 6,907 6,907 Long-term debt: (4) 2020 Notes 299,381 302,700 298,499 300,356 2021 Euro Notes 334,561 338,244 337,704 341,094 2023 Notes 299,004 305,580 298,698 293,017 2024 Euro Notes 558,124 586,825 564,034 584,129 2026 Euro Notes 890,183 945,306 899,886 909,439 2028 Notes 396,688 441,500 396,377 401,231 2047 Notes 493,571 526,106 493,151 446,725 2048 Notes 785,996 919,040 785,788 783,925 Term Loan (2) 239,621 240,000 349,163 350,000 Amortizing Notes (5) 82,079 84,430 125,007 127,879 _______________________ (1) The carrying amount of cash and cash equivalents approximates fair value due to the short maturity of those instruments. (2) The carrying amount approximates fair value as the interest rate is reset frequently based on current market rates as well as the short maturity of those instruments. (3) The carrying amount approximates fair value as the instruments are marked-to-market and held at fair value on the balance sheet. (4) The fair value of the Company's long-term debt was calculated using discounted cash flows applying current interest rates and current credit spreads based on its own credit risk. (5) The fair value of the Amortizing Notes of the TEUs is based on the most recently quoted price for the outstanding securities, adjusted for any known significant deviation in value. The estimated fair value of these long-term obligations is not necessarily indicative of the amount that would be realized in a current market exchange. See Note 8 for additional information on the TEUs. Derivatives Forward Currency Forward Contracts The Company periodically enters into foreign currency forward contracts with the objective of reducing exposure to cash flow volatility associated with its intercompany loans, foreign currency receivables and payables and anticipated purchases of certain raw materials used in operations. These contracts generally involve the exchange of one currency for a second currency at a future date, have maturities not exceeding twelve months and are with counterparties which are major international financial institutions. Cash Flow Hedges During the year ended December 31, 2017, the Company entered into several forward currency contracts which qualified as cash flow hedges. The objective of these hedges is to protect against the currency risk associated with forecasted U.S. dollar ("USD") denominated raw material purchases made by Euro ("EUR") functional currency entities which result from changes in the EUR/USD exchange rate. The effective portions of cash flow hedges are recorded in OCI as a component of Gains/(Losses) on derivatives qualifying as hedges in the accompanying Consolidated Statement of Income and Comprehensive Income . Realized gains/(losses) in AOCI related to cash flow hedges of raw material purchases are recognized as a component of Cost of goods sold in the accompanying Consolidated Statement of Income and Comprehensive Income in the same period as the related costs are recognized. Hedges Related to Issuances of Debt Subsequent to the issuance of the 2021 Euro Notes and 2026 Euro Notes during the third quarter of 2018, the Company designated the debt as a hedge of a portion of its net European investments. Accordingly, the change in the value of the debt that is attributable to foreign exchange movements is recorded in OCI as a component of foreign currency translation adjustments in the accompanying Consolidated Statement of Income and Comprehensive Income . Subsequent to the issuance of the 2024 Euro Notes during the first quarter of 2016, the Company designated the debt as a hedge of a portion of its net European investments. Accordingly, the change in the value of the debt that is attributable to foreign exchange movements is recorded in OCI as a component of foreign currency translation adjustments in the accompanying Consolidated Statement of Income and Comprehensive Income . During the first quarter of 2016, the Company entered into and terminated two Euro interest rate swap agreements to hedge the anticipated issuance of fixed-rate debt. These swaps were designated as cash flow hedges. The effective portions of cash flow hedges are recorded in OCI as a component of Losses on derivatives qualifying as hedges in the accompanying Consolidated Statement of Income and Comprehensive Income . The Company incurred a loss of € 2.9 million ( $3.2 million ) due to the termination of these swaps. The loss is being amortized as interest expense over the life of the 2024 Euro Notes as discussed in Note 9 . During the fourth quarter of 2016 and the first quarter of 2017, the Company entered into interest rate swap agreements to hedge the anticipated issuance of fixed-rate debt, which are designated as cash flow hedges. The various hedge instruments were settled upon issuance of the debt on May 18, 2017 and resulted in a loss of approximately $5.3 million . As discussed in Note 9 , the loss is being amortized as interest expense over the life of the 2047 Notes. Frutarom Acquisition Related Hedges In the second quarter of 2018, the Company entered into a foreign currency contract and two interest rate swap agreements (collectively, the "Deal Contingent Swaps"), which were contingent upon the closing of the Frutarom acquisition, for a total notional amount of $1.9 billion . In the third quarter of 2018, the Company completed the offering and sale of the 2018 Senior Unsecured Notes (see Note 9 for additional information) and settled the Deal Contingent Swaps. The Company received $12.2 million for the foreign currency contract and $0.4 million for the two interest rate swap agreements which is included in Other income, net and Interest Expense, respectively, in the accompanying Consolidated Statement of Income and Comprehensive Income for the year ended December 31, 2018. Cross Currency Swaps In the fourth quarter of 2018, the Company entered into certain cross currency swaps which qualified as net investment hedges in order to mitigate a portion of its net European investments from foreign currency risk. As of December 31, 2018, these swaps were in a net asset position with an aggregate fair value of $1.1 million . Changes in fair value related to cross currency swaps were recorded in OCI. During the third quarter of 2019, the Company entered into a transaction to unwind the four cross currency swaps designated as net investment hedges issued in the fourth quarter of 2018 and received proceeds of $33.6 million , including $7.7 of interest income. The gain arising from the termination of the swaps has been included as a component of Accumulated other comprehensive loss. Following the termination of the existing swaps, the Company entered into four new EUR/USD cross currency swaps that mature through May 2023 covering the same notional amounts of debt. The new swaps qualified as net investment hedges in order to mitigate a portion of the Company's net European investments from foreign currency risk. As of December 31, 2019 , these swaps were in a net liability position with an aggregate fair value of $4.2 million which was classified as other current liabilities. Changes in fair value related to cross currency swaps are recorded in OCI. The following table shows the notional amount of the Company’s derivative instruments outstanding as of December 31, 2019 and December 31, 2018 : December 31, (DOLLARS IN THOUSANDS) 2019 2018 Foreign currency contracts $ 473,600 $ 585,581 Cross currency swaps 600,000 600,000 The following tables show the Company’s derivative instruments measured at fair value (Level 2 of the fair value hierarchy) as reflected in the Consolidated Balance Sheet as of December 31, 2019 and December 31, 2018 : December 31, 2019 (DOLLARS IN THOUSANDS) Fair Value of Derivatives Fair Value of Derivatives Not Designated as Hedging Instruments Total Fair Value Derivative assets (a) Foreign currency contracts $ 1,310 $ 2,265 $ 3,575 Derivative liabilities (b) Foreign currency contracts 797 2,431 3,228 Cross currency swaps 4,187 — 4,187 Total derivative liabilities $ 4,984 $ 2,431 $ 7,415 December 31, 2018 (DOLLARS IN THOUSANDS) Fair Value of Derivatives Designated as Hedging Instruments Fair Value of Derivatives Not Designated as Hedging Instruments Total Fair Value Derivative assets (a) Foreign currency contracts $ 4,122 $ 2,020 $ 6,142 Cross currency swaps 1,087 — 1,087 Total derivative assets 5,209 2,020 7,229 Derivative liabilities (b) Foreign currency contracts $ 205 $ 6,702 $ 6,907 _______________________ (a) Derivative assets are recorded to Prepaid expenses and other current assets in the Consolidated Balance Sheet. (b) Derivative liabilities are recorded as Other current liabilities in the Consolidated Balance Sheet. The following table shows the effect of the Company’s derivative instruments which were not designated as hedging instruments in the Consolidated Statement of Income and Comprehensive Income for the years ended December 31, 2019 and December 31, 2018 : (DOLLARS IN THOUSANDS) Amount of Gain (Loss) For the year ended December 31, Location of Gain (Loss) Recognized in Income on Derivative 2019 2018 Foreign currency contracts $ 557 $ 1,999 Other (income) expense, net Deal contingent swaps Foreign currency contracts — 12,154 Other income, net Interest rate swaps — 352 Interest expense $ 557 $ 14,505 These net gains (losses) mostly offset any recognized gains (losses) arising from the revaluation of the related intercompany loans during the same respective periods. The following table shows the effect of the Company’s derivative instruments designated as cash flow and net investment hedging instruments, net of tax, in the Consolidated Statement of Income and Comprehensive Income for the years ended December 31, 2019 and December 31, 2018 (in thousands): Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion) Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion) Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion) For the years ended December 31, For the years ended December 31, 2019 2018 2019 2018 Derivatives in Cash Flow Hedging Relationships: Foreign currency contracts $ (3,535 ) $ 14,220 Cost of goods sold $ 8,504 $ (6,203 ) Interest rate swaps (1) 857 864 Interest expense (857 ) (864 ) Derivatives or debt instruments in Net Investment Hedging Relationships: Foreign currency contracts — (518 ) N/A — — 2024 Euro Notes 5,440 20,539 N/A — — 2021 Euro Notes & 2026 Euro Notes 11,969 30,390 N/A — — Total $ 14,731 $ 65,495 $ 7,647 $ (7,067 ) _______________________ (1) Interest rate swaps were entered into as pre-issuance hedges for the Company's bond offerings. The ineffective portion of the above noted cash flow hedges and net investment hedges was not material for the years ended December 31, 2019 and 2018 . The Company expects approximately $4.7 million (net of tax), of derivative gains included in AOCI at December 31, 2019 , based on current market rates, will be reclassified into earnings within the next twelve months. The majority of this amount will vary due to fluctuations in foreign currency exchange rates.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	TANGIBLE EQUITY UNITS On September 17, 2018, the Company issued and sold 16,500,000 , 6.00% TEUs at $50 per unit and received proceeds of $800.2 million , net of discounts and issuance costs of $24.8 million . Each TEU is comprised of: (i) a prepaid SPC to be settled by delivery of a specified number of shares of the Company's common stock, and (ii) a senior amortizing note (“Amortizing Note”), with an initial principal amount of $8.45 and a final installment payment date of September 15, 2021. The Company pays equal quarterly cash installments of $0.75 per Amortizing Note on March 15, June 15, September 15, and December 15 of each year, with the exception of the first installment payment of $0.7333 per Amortizing Note which was due on December 15, 2018. In the aggregate, the annual quarterly cash installments will be equivalent to 6.00% per year. Each installment payment constitutes a payment of interest and a partial repayment of principal, computed at an annual rate of 3.79% . Each TEU may be separated by a holder into its constituent SPC and Amortizing Note after the initial issuance date of the TEUs, and the separate components may be combined to create a TEU after the initial issuance date, in accordance with the terms of the SPC. The TEUs are listed on the New York Stock Exchange under the symbol “IFFT”. The proceeds from the issuance of the TEUs were allocated to equity and debt based on the relative fair value of the respective components of each TEU as follows: (IN MILLIONS, EXCEPT FAIR VALUE PER TEU) SPC Amortizing Note Total Fair Value per TEU $ 41.5 $ 8.5 $ 50.0 Gross Proceeds $ 685.5 $ 139.5 $ 825.0 Less: Issuance costs 20.4 4.4 24.8 Net Proceeds $ 665.1 $ 135.1 $ 800.2 The net proceeds of the SPCs were recorded as additional paid in capital, net of issuance costs. The net proceeds of the Amortizing Notes were recorded as debt, with deferred financing costs recorded as a reduction of the carrying amount of the debt in the Company's consolidated balance sheet. Deferred financing costs related to the Amortizing Notes are amortized through the maturity date using the effective interest rate method. Unless settled early at the holder’s or the Company's election, each SPC will automatically settle on September 15, 2021 for a number of shares of common stock per SPC based on the 20 day volume-weighted average price (“VWAP”) of the Company's common stock as follows: VWAP of IFF Common Stock Common Stock Issued Equal to or greater than $159.54 0.3134 shares (minimum settlement rate) Less than $159.54, but greater than $130.25 $50 divided by VWAP Less than or equal to $130.25 0.3839 shares (maximum settlement rate) At any time prior to the second scheduled trading day immediately preceding September 15, 2021, any holder of an SPC may settle any or all of its SPCs early, and the Company will deliver 0.3134 shares of its common stock for each SPC, subject to adjustment. Additionally, the SPCs may be redeemed in the event of a fundamental change as defined in the SPC. Dividends Cash dividends declared per share were $2.96 , $2.84 and $2.66 in for the years ended December 31, 2019 , 2018 and 2017 , respectively. The Consolidated Balance Sheet reflects $80.0 million of dividends payable at December 31, 2019 . This amount relates to a cash dividend of $0.75 per share declared in December 2019 and paid in January 2020 . Dividends declared, but not paid as of December 31, 2018 and December 31, 2017 were $77.8 million ( $0.73 per share) and $54.4 million ( $0.69 per share), respectively. Share Repurchases In December 2012, the Board of Directors authorized a $250.0 million share repurchase program, which commenced in the first quarter of 2013. In August 2015, the Board of Directors approved an additional $250 million share repurchase authorization and extension through December 31, 2017. Based on the total remaining amount of $56.1 million available under the amended repurchase program as of October 31, 2017, the Board of Directors re-approved on November 1, 2017 a $250.0 million share repurchase authorization and extension for a total value of $300.0 million available under the program, which expires on November 1, 2022 . A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is summarized as follows: (DOLLARS IN THOUSANDS) Shares Repurchased Weighted- Average Price per Share Dollar Amount Repurchased Year Ended December 31, 2018 108,109 $ 143.15 $ 15,475 Year Ended December 31, 2017 459,264 126.44 58,069 Based on the total remaining amount of $279.7 million available under the repurchase program, 2,213,425 shares, or 2.0% of shares outstanding (based on the market price and weighted average shares outstanding as of December 31, 2019 ) could be repurchased under the program as of December 31, 2019 . The following tables present changes in the accumulated balances for each component of other comprehensive income, including current period other comprehensive income and reclassifications out of accumulated other comprehensive income: (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive loss, net of tax, as of December 31, 2018 $ (396,996 ) $ 4,746 $ (309,977 ) $ (702,227 ) OCI before reclassifications 23,953 4,969 (45,599 ) (16,677 ) Amounts reclassified from AOCI — (7,647 ) 9,657 2,010 Net current period other comprehensive income (loss) 23,953 (2,678 ) (35,942 ) (14,667 ) Accumulated other comprehensive loss, net of tax, as of December 31, 2019 $ (373,043 ) $ 2,068 $ (345,919 ) $ (716,894 ) (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2017 $ (297,416 ) $ (10,332 ) $ (329,734 ) $ (637,482 ) OCI before reclassifications (99,580 ) 8,011 9,717 (81,852 ) Amounts reclassified from AOCI — 7,067 10,040 17,107 Net current period other comprehensive income (loss) (99,580 ) 15,078 19,757 (64,745 ) Accumulated other comprehensive loss, net of tax, as of December 31, 2018 $ (396,996 ) $ 4,746 $ (309,977 ) $ (702,227 ) (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2016 $ (352,025 ) $ 7,604 $ (335,674 ) $ (680,095 ) OCI before reclassifications 66,826 (14,782 ) (7,941 ) 44,103 Amounts reclassified from AOCI (12,217 ) (a) (3,154 ) 13,881 (1,490 ) Net current period other comprehensive income (loss) 54,609 (17,936 ) 5,940 42,613 Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2017 $ (297,416 ) $ (10,332 ) $ (329,734 ) $ (637,482 ) (a) Represents a foreign currency exchange gain from the release of a currency translation adjustment upon the liquidation of a foreign entity in 2017. The following table provides details about reclassifications out of AOCI to the Consolidated Statement of Comprehensive Income: Year Ended December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Affected Line Item in the Consolidated Statement of Comprehensive Income (Losses) gains on derivatives qualifying as hedges Foreign currency contracts $ 9,719 $ (7,089 ) $ 4,506 Cost of goods sold Interest rate swaps (857 ) (864 ) (789 ) Interest expense Tax (1,215 ) 886 (563 ) Provision for income taxes Total $ 7,647 $ (7,067 ) $ 3,154 Total, net of income taxes (Losses) gains on pension and postretirement liability adjustments Prior service cost $ 6,644 $ 7,752 $ 7,040 (a) Actuarial losses (19,032 ) (20,645 ) (24,699 ) (a) Tax 2,731 2,853 3,778 Provision for income taxes Total $ (9,657 ) $ (10,040 ) $ (13,881 ) Total, net of income taxes _______________________ (a) The amortization of prior service cost and actuarial loss is included in the computation of net periodic benefit cost. Refer to Note 16 to the Consolidated Financial Statements for additional information regarding net periodic benefit cost.

Concentrations of Credit Risk

Concentrations of Credit Risk	12 Months Ended
	Dec. 31, 2019
Risks and Uncertainties [Abstract]
Concentrations of Credit Risk	CONCENTRATIONS OF CREDIT RISK The Company does not have significant concentrations of risk in financial instruments. Temporary investments are made in a well-diversified portfolio of high-quality, liquid obligations of government, corporate and financial institutions. There are also limited concentrations of credit risk with respect to trade receivables because the Company has a large number of customers who are spread across many industries and geographic regions. The Company’s larger customers are each spread across many sub-categories of its segments and geographical regions. The Company had one customer that accounted for more than 10% of its consolidated net sales for the year ended 2017 , but less than 10% for the years ended 2019 and 2018 .

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Guarantees and Letters of Credit The Company has various bank guarantees and letters of credit which are available for use to support its ongoing business operations and to satisfy governmental requirements associated with pending litigation in various jurisdictions. At December 31, 2019 , the Company had total bank guarantees and standby letters of credit of approximately $53.6 million with various financial institutions. Included in the above aggregate amount is a total of $16.7 million for other assessments in Brazil for various income tax and indirect tax disputes related to fiscal years 1998-2011. There were no material amounts utilized under the standby letters of credit as of December 31, 2019 . In order to challenge the assessments in these cases in Brazil, the Company has been required to and has separately pledged assets, principally property, plant and equipment to cover assessments in the amount of approximately $10.0 million as of December 31, 2019 . On December 15, 2019, IFF and N&B entered into a commitment letter which provides $7.5 billion in an aggregate principal amount of senior unsecured bridge term loans. On January 17, 2020, N&B entered into a term loan credit agreement providing for unsecured term loan facilities in an aggregate principal amount of $1.25 billion , which reduced the commitments under the Bridge Loans commitment letter by a corresponding amount. N&B will be the initial borrower under the remaining $6.25 billion tranche of the 364-day senior unsecured bridge facility (or, if applicable, any replacement debt financing), which, together with the Term Loan Facilities, will be used to finance the Special Cash Payment and to pay related fees and expenses. Following the consummation of the merger, all obligations of N&B with respect to the Term Loan Facilities and the Bridge Facility (if any) or, if applicable, the replacement debt financing, will be guaranteed by IFF (or at the election of N&B and IFF, assumed by IFF). Lines of Credit The Company has various lines of credit which are available to support its ongoing business operations. As of December 31, 2019 , the Company had available lines of credit of $105.3 million with various financial institutions, in addition to the $1.0 billion of capacity under the Credit Facility. There were no material amounts drawn down pursuant to these lines of credit as of December 31, 2019 . Litigation The Company assesses contingencies related to litigation and/or other matters to determine the degree of probability and range of possible loss. A loss contingency is accrued in the Company’s consolidated financial statements if it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Because litigation is inherently unpredictable and unfavorable resolutions could occur, assessing contingencies is highly sensitive and requires judgments about future events. On at least a quarterly basis, the Company reviews contingencies related to litigation to determine the adequacy of accruals. The amount of ultimate loss may differ from these estimates and further events may require the Company to increase or decrease the amounts it has accrued on any matter. Periodically, the Company assesses its insurance coverage for all known claims, where applicable, taking into account aggregate coverage by occurrence, limits of coverage, self-insured retentions and deductibles, historical claims experience and claims experience with its insurance carriers. The liabilities are recorded at management’s best estimate of the probable outcome of the lawsuits and claims, taking into consideration the facts and circumstances of the individual matters as well as past experience on similar matters. At each balance sheet date, the key issues that management assesses are whether it is probable that a loss as to asserted or unasserted claims has been incurred and if so, whether the amount of loss can be reasonably estimated. The Company records the expected liability with respect to claims in Other liabilities and expected recoveries from its insurance carriers in Other assets. The Company recognizes a receivable when it believes that realization of the insurance receivable is probable under the terms of the insurance policies and its payment experience to date. During the third quarter of 2019, in connection with the completion of the measurement period for finalizing the opening balance of Frutarom, the Company recorded an immaterial amount of reserves related to certain legal cases. The reserves were based on the determination that the loss was probable as of October 4, 2018. The amount of future exposure is included in the estimate within the section "Other" below. Litigation Matters On August 12, 2019, Marc Jansen filed a putative securities class action against IFF, its Chairman and CEO, and its CFO, in the United States District Court for the Southern District of New York. The lawsuit, which was filed after IFF disclosed that preliminary results of investigations indicated that Frutarom businesses operating principally in Russia and Ukraine had made improper payments to representatives of customers, alleges that defendants made materially false and misleading statements or omissions concerning IFF’s acquisition of Frutarom, the integration of the two companies, and IFF’s financial reporting and results. The lawsuit brings claims under Section 10(b) of the Securities Exchange Act of 1934 and SEC Rule 10b-5 against all defendants, and under Section 20(a) of the Securities Exchange Act of 1934 against the individual defendants, and was filed on behalf of a putative class of persons and entities who purchased or otherwise acquired IFF securities between May 7, 2018 and August 5, 2019. The complaint seeks an award of unspecified compensatory damages, costs, and expenses. On December 26, 2019, the Court appointed a group of six investment funds as lead plaintiff and Pomerantz LLP as lead counsel. Two motions to approve securities class actions were filed in the Tel Aviv District Court, Israel in August 2019, similarly alleging, among other things, false and misleading statements largely in connection with IFF’s acquisition of Frutarom and the above-mentioned improper payments. Both assert claims under the U.S. federal securities laws against IFF, its Chairman and CEO, and its former CFO. One also asserts claims under the Israeli Securities Act-1968 against IFF, as well as against Frutarom and certain former Frutarom officers and directors, and asserts claims under the Israeli Companies Act-1999 against certain former Frutarom officers and directors. On October 29, 2019, IFF and Frutarom filed a claim in the Tel Aviv District Court, Israel, against Ori Yehudai, the former President and CEO of Frutarom, and against certain former directors of Frutarom, challenging the bonus of US $20 million granted to Yehudai in 2018. IFF and Frutarom allege, among other things, that Yehudai was not entitled to receive the bonus because he breached his fiduciary duty by, among other things, knowing of the above-mentioned improper payments and failing to prevent them from being made. Environmental During the third quarter of 2019, in connection with the completion of the measurement period for finalizing the opening balance of Frutarom, the Company recorded approximately $5 million in reserves related to certain environmental liabilities. The reserves were based on the determination that the loss was probable as of October 4, 2018. The amount of future exposure is included in the estimate within the section "Other" below. China Facilities Hangzhou Ingredients plant As previously disclosed, in 2014 the Company agreed to relocate an ingredients facility in Hangzhou, China to Jiande, China. In connection with such relocation, the Company entered into a land swap and relocation agreement with the local authority pursuant to which the Company agreed to transfer ownership of the land underlying the facility in exchange for various elements of compensation, including cash and land use rights for the new facility. The Company initially determined that the gain, if any, would be recognized upon final transfer of ownership. During the fourth quarter of 2019, the Company completed the final environmental cleanup activities and transferred ownership of the land to the local authority. The amount of the gain ultimately recognized in the fourth quarter of 2019 was $4.4 million . The amount has been recorded as a component of Other income, net. Guangzhou Taste plant During the fourth quarter of 2016, the Company was notified that certain governmental authorities have begun to evaluate a change in the zoning of the Guangzhou Taste plant. The zoning, if changed, would prevent the Company from continuing to manufacture product at the existing plant. The ultimate outcome of any change that the governmental authorities may propose, the timing of such a change, and the nature of any compensation arrangements that might be provided to the Company are uncertain. To address the governmental authorities' requirements, the Company has begun to transfer certain production capabilities from the Guangzhou Taste plant to a newly built facility in Zhangjiagang. The net book value of the plant in Guangzhou was approximately $61 million as of December 31, 2019 . Guangzhou Scent plant During the second quarter of 2019, the Company was notified that certain governmental authorities had changed the zoning where the Guangzhou Scent plant is located. The zoning change did not affect the current operations but prevents expansions or other increases in the operating capacity of the plant. The Company believes that it is possible that the zoning may be enforced in the future such that it would not be able to continue manufacturing at the existing site. The ultimate outcome of any change that the governmental authorities may propose, the timing of such a change, and the nature of any compensation arrangements that might be provided to the Company are uncertain. The net book value of the existing plant was approximately $9 million as of December 31, 2019 . Zhejiang Ingredients plant In the fourth quarter of 2017, the Company concluded discussions with the government regarding the relocation of its Fragrance Ingredients plant in Zhejiang and, based on the agreements reached, expects to receive total compensation payments up to approximately $50 million . The relocation compensation will be paid to the Company over the period of the relocation which is expected to be through the end of 2021. The Company received a payment of $15 million in both the fourth quarter of 2017 and the second quarter of 2019. The third payment of $15 million is expected in the first quarter of 2020 with the fourth and final payment expected in the second half of 2020 upon the final environmental inspection. Production at the facility has ceased as of December 31, 2019 . The net book value of the closed plant was approximately $10 million as of December 31, 2019 related to the land use rights and residual value of the plant building. Total China Operations The total net book value of all eight plants in China was approximately $201 million as of December 31, 2019 . If the Company is required to close a plant, or operate one at significantly reduced production levels on a permanent basis, the Company may be required to record charges that could have a material impact on its consolidated financial results of operations, financial position and cash flows in future periods. Other Contingencies The Company has contingencies involving third parties (such as labor, contract, technology or product-related claims or litigation) as well as government-related items in various jurisdictions in which it operates pertaining to such items as value-added taxes, other indirect taxes, customs and duties and sales and use taxes. It is possible that cash flows or results of operations, in any period, could be materially affected by the unfavorable resolution of one or more of these contingencies. The most significant government-related contingencies exist in Brazil. With regard to the Brazilian matters, the Company believes it has valid defenses for the underlying positions under dispute; however, in order to pursue these defenses, the Company is required to, and has provided, bank guarantees and pledged assets in the aggregate amount of $27.7 million . The Brazilian matters take an extended period of time to proceed through the judicial process and there are a limited number of rulings to date. Pending Transaction with Nutrition & Biosciences, Inc. The Merger Agreement governing the DuPont N&B Transaction, subjects IFF to various contingent payments to the extent that the transaction is not consummated. Specifically, the Merger Agreement provides DuPont the right to receive a termination fee of $521.5 million, in certain circumstances, including if the agreement is terminated due to the IFF Board changing its recommendation and to reimburse DuPont’s transaction-related expenses in an amount up to $75 million if the Merger Agreement is terminated because IFF’s shareholders do not approve the issuance of IFF Common Stock in connection with the transaction. Investigations IFF’s investigation of allegations that improper payments to representatives of customers were made in Russia and Ukraine has been completed. Such allegations were substantiated, and IFF has confirmed that key members of Frutarom’s senior management at the time were aware of such payments. IFF has taken appropriate remedial actions, including replacing senior management in relevant locations, and believes that such improper customer payments have stopped. IFF has confirmed in these investigations that total affected sales represented less than 1% of the Company's consolidated net sales for 2019. The impact of the reviews, including the costs associated with them, were not material to IFF’s results of operations or financial condition. In addition, no evidence was uncovered suggesting that any of these compliance matters had any connection to the United States. FDA-Mandated Product Recall The Company periodically incurs product liability claims based on product that is sold to customers that may be defective or otherwise not in accordance with the customer’s requirements. In the first quarter of 2017, the Company was made aware of a claim for product that was subject to an FDA-mandated product recall. As of December 31, 2019 , the Company had recorded total charges of approximately $17.5 million with respect to this claim, of which $5.0 million was recorded in the three months ended March 31, 2018. The Company settled the claim with the customer in the first quarter of 2018 for a total of $16.0 million , of which $3.0 million was paid in the fourth quarter of 2017 and $13.0 million was paid during the three months ended March 31, 2018. For the year ended 2018, the Company received $13.1 million for the full and final settlement of its claim from the supplier and insurer for the affected product, which has been recorded as a reduction of cost of sales on the Consolidated Statement of Income and Comprehensive Income . Brazil Tax Credits In 2017 the Brazilian Supreme Court (“BSC”) ruled that Brazilian tax authorities should not include a value added tax known as "ICMS" in the calculation of certain indirect taxes ("PIS/COFINS"). By removing the ICMS from the calculation of the indirect tax base, the Court effectively eliminated a “tax on tax”. The Brazilian tax authorities filed an appeal seeking clarification of certain matters, including the amount of ICMS to which taxpayers would be entitled in order to reduce their indirect tax base (i.e. the gross rate or the net rate.) In light of the BSC's decision, in November 2017, the Company filed suit consistent with the BSC decision to require that ICMS be excluded from the PIS/COFINS calculation and received a favorable preliminary decision that was confirmed by the BSC in September 2018. This preliminary ruling granted the Company the right to prospectively exclude ICMS amounts from the PIS/COFINS calculation, but left open the issue of whether the Company could recover the gross or net amount of ICMS amounts paid on PIS/COFINS for the period from November 2011 to December 2018. In early January 2020, the Company was informed that a favorable decision was reached, confirming that the Company was entitled to recover the ICMS overpayments on PIS/COFINS for the period from November 2011 to December 2018, plus interest on that amount. The ruling did not, however, settle the question of whether the Company is eligible to recover based on the gross or the net amount of ICMS amounts paid on PIS/COFINS. A final ruling on the gross versus net amount issued is expected to be rendered in mid-2020. Based on currently available information, the Company recognized $8.0 million as a recovery in the fourth quarter of 2019 as a component of Selling and administrative expenses. Additional amounts may be recorded in 2020 upon completion of the final claim and subject to the satisfactory outcome of the final ruling on the use of the gross method of calculation. Other The Company determines estimates of reasonably possible losses or ranges of reasonably possible losses in excess of related accrued liabilities, if any, when it has determined that either a loss is reasonably possible or a loss in excess of accrued amounts is reasonably possible and the amount of losses or range of losses is determinable. For all third party contingencies (including labor, contract, technology, tax, product-related claims and business litigation), the Company currently estimates that the aggregate range of reasonably possible losses in excess of any accrued liabilities is $0 to approximately $10 million . The estimates included in this amount are based on the Company’s analysis of currently available information and, as new information is obtained, these estimates may change. Due to the inherent subjectivity of the assessments and the unpredictability of outcomes of legal proceedings, any amounts accrued or included in this aggregate amount may not represent the ultimate loss to the Company from the matters in question. Thus, the Company’s exposure and ultimate losses may be higher or lower, and possibly significantly so, than the amounts accrued or the range disclosed above.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts and Reserves	12 Months Ended
	Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts and Reserves	SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (IN THOUSANDS) For the Year Ended December 31, 2019 Balance at beginning of period Additions charged to costs and expenses Acquisitions Accounts written off Translation adjustments Balance at end of period Allowance for doubtful accounts $ 9,173 $ 1,262 $ — $ (2,024 ) $ (180 ) $ 8,231 Valuation allowance on credit and operating loss carryforwards and other net deferred tax assets 200,280 5,659 — — (2,174 ) 203,765 For the Year Ended December 31, 2018 Balance at beginning of period Additions (deductions) charged to costs and expenses Acquisitions Accounts Translation adjustments Balance at end of period Allowance for doubtful accounts $ 13,392 $ 1,286 $ — $ (4,642 ) $ (863 ) $ 9,173 Valuation allowance on credit and operating loss carryforwards and other net deferred tax assets 207,483 (1,821 ) (1) 3,887 — (9,269 ) 200,280 For the Year Ended December 31, 2017 Balance at beginning of period Additions charged to costs and expenses Acquisitions Accounts Translation adjustments Balance at end of period Allowance for doubtful accounts $ 9,995 $ 3,798 $ — $ (1,496 ) $ 1,095 $ 13,392 Valuation allowance on credit and operating loss carryforwards and other net deferred tax assets 152,752 35,646 (2) — — 19,085 207,483 _______________________ (1) The 2018 amount includes an adjustment to the 2017 foreign net operating loss carryforwards in the amount of $5.9 million . (2) The 2017 amount includes an adjustment to the 2016 foreign net operating loss carryforwards in the amount of $58.8 million

Redeemable Noncontrolling Inter

Redeemable Noncontrolling Interests	12 Months Ended
	Dec. 31, 2019
Noncontrolling Interest [Abstract]
Redeemable Noncontrolling Interests	REDEEMABLE NONCONTROLLING INTERESTS Through certain subsidiaries of Frutarom, there are noncontrolling interests that carry redemption features. The noncontrolling interest holders have the right, over a stipulated period of time, to sell their respective interests to Frutarom, and Frutarom has the option to purchase these interests (subject to the same timing). These options carry identical price and conditions of exercise, and will be settled in accordance with the multiple of the average EBITDA of consecutive quarters to be achieved during the period ending prior to the exercise date. The following table sets forth the details of the Company's redeemable noncontrolling interests: (DOLLARS IN THOUSANDS) Redeemable Noncontrolling Interests Balance at December 31, 2017 $ — Acquired through acquisitions during 2018 97,510 Share of profit or loss attributable to noncontrolling interests 2,196 Redemption value mark-up for the current period 2,848 Sale of a subsidiary with redeemable noncontrolling interests (14,673 ) Exercises of redeemable noncontrolling interests (6,075 ) Balance at December 31, 2018 $ 81,806 Acquired through acquisitions during 2019 23,594 Impact of foreign exchange translation (126 ) Share of profit or loss attributable to redeemable noncontrolling interests 666 Redemption value adjustment for the current period 2,097 Measurement period adjustments 5,391 Dividends paid (753 ) Exercises of redeemable noncontrolling interests (13,632 ) Balance at December 31, 2019 $ 99,043 The decrease in redeemable noncontrolling interests in 2018 is primarily due to the exercise of options and the sale of a subsidiary during the fourth quarter of 2018. The increase in redeemable noncontrolling interests in 2019 is primarily due to the interests acquired through acquisitions during the period, as discussed in Note 3.

Subsequent Events (Notes)

Subsequent Events (Notes)	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS Amendments to Existing Revolving Credit Facility Agreement On January 17, 2020, the Company and certain of its subsidiaries entered into an amendment to its Credit Facility to facilitate the N&B transaction and the related guarantee or assumption by the Company of indebtedness to be incurred by N&B, in connection with the Company’s pending transaction with N&B by, among other things, providing that after the closing date of the transaction, the Company’s maximum permitted ratio of Net Debt to Consolidated EBITDA shall be 4.50 to 1.0, stepping down to 3.50 to 1.0 over time (with a step-up if the Company consummates certain qualified acquisitions). Amendments to Existing Term Loan Agreement On January 17, 2020, the Company and certain of its subsidiaries entered into an amendment to its Term Loan to facilitate the N&B transaction and the related guarantee or assumption by the Company of indebtedness to be incurred by N&B, in connection with the Company’s pending transaction with N&B by, among other things, providing that after the closing date of the transaction, the Company’s maximum permitted ratio of Net Debt to Consolidated EBITDA shall be 4.50 to 1.0, stepping down to 3.50 to 1.0 over time (with a step-up if the Company consummates certain qualified acquisitions).

Nature of Operations and Summ_2

Nature of Operations and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Fiscal Year End	The Company has historically operated on a 52/53 week fiscal year generally ending on the Friday closest to the last day of the year. For ease of presentation, December 31 is used consistently throughout the financial statements and notes to represent the period-end date. The 2019 fiscal year was a 53 week period, and 2018 and 2017 fiscal years were 52 week periods. For the 2019 , 2018 and 2017 fiscal years, the actual closing dates were January 3 , December 28 , and December 29 , respectively.
Use of Estimates	The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts and accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions the Company may undertake in the future. Actual results may ultimately differ from estimates.
Principles of Consolidation	The consolidated financial statements include the accounts of International Flavors & Fragrances Inc. and those of its subsidiaries. Significant intercompany balances and transactions have been eliminated. To the extent a subsidiary is not wholly owned, any related noncontrolling interests are included as a separate component of Shareholders’ Equity.
Revenue Recognition	Revenue from contracts with customers is recognized when the contract or purchase order has received approval and commitment from both parties, has the rights of the parties and payment terms (which can vary by customer) identified, has commercial substance, and collectability of consideration is probable. For the Company's Flavors, Fragrances Compounds and Frutarom products, revenue is recognized for the majority of contracts when the Company satisfies its performance obligation by transferring control of the goods to the customer. Revenue is recognized over time for a small number of contracts, and the amount of revenue recognized is based on the extent of progress towards completion of the promised goods, using the output method. With respect to a small number of contracts for the sale of compounds, the Company has an “enforceable right to payment for performance to date” and as the products do not have an alternative use, the Company recognizes revenue for these contracts over time and records a contract asset using the output method. For the Company's Fragrances Ingredients products, revenue is recognized for the majority of contracts when the Company satisfies its performance obligation by transferring control of the goods to the customer.
Foreign Currency Translation	The Company translates the assets and liabilities of non-U.S. subsidiaries into U.S. dollars at year-end exchange rates. Income and expense items are translated at average exchange rates during the year. Cumulative translation adjustments are shown as a separate component of Shareholders’ Equity.
Research and Development	Research and development (“R&D”) expenses relate to the development of new and improved tastes or scents, technical product support and compliance with governmental regulation. All research and development costs are expensed as incurred.
Cash Equivalents	Cash and cash equivalents include highly liquid investments with maturities of three months or less at date of purchase.
Restricted Cash	Restricted cash is comprised of cash or cash equivalents which has been placed into an account that is restricted for a specific use and from which the Company cannot withdraw the cash on demand.
Accounts Receivable	During 2019, the Company entered into certain factoring agreements in the U.S. and The Netherlands under which it can factor up to approximately $100 million
Inventories	Inventories are stated at the lower of cost (on a weighted-average basis) or net realizable value.
Leases	During the year ended December 31, 2019 , the Company adopted ASU No. 2016-02, “Leases (Topic 842),” which requires most leases to be recognized on the balance sheet. The Company adopted the standard using the modified retrospective approach with an effective date of December 29, 2018, the beginning of its 2019 fiscal year. Prior year financial statements were not recast. The Company elected various transition provisions available for expired or existing contracts, which allows the Company to carryforward historical assessments of (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs. The Company determines if an arrangement is a lease at contract inception. A lease exists when a contract conveys to the customer the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. The definition of a lease embodies two conditions: (1) there is an identified asset in the contract that is land or a depreciable asset (i.e., property, plant, and equipment), and (2) the customer has the right to control the use of the identified asset. When the Company determines the arrangement is a lease, or contains a lease, at inception, it then determines whether the lease is an operating lease or a finance lease at the commencement date. The Company does not separate lease and nonlease components of contracts. The Company leases property and equipment, principally under operating leases. In accordance with ASU 2016-02, the Company records a right of use asset and related obligation at the present value of lease payments and, over the term of the lease, depreciates the right of use asset and accretes the obligation to future value. Some of the leases include rental escalation clauses, renewal options and/or termination options that are factored into the determination of lease payments when appropriate. The Company has elected not to separate non-lease components from lease components for all classes of leased assets. When available, the Company uses the rate implicit in the lease to discount lease payments to present value, however, most of the Company's leases do not provide a readily determinable implicit rate and the Company calculates the applicable incremental borrowing rate to discount the lease payments based on the term of the lease at lease commencement. The incremental borrowing rate is determined based on currency and lease terms.
Property, Plant and Equipment	Property, plant and equipment are recorded at cost. Depreciation is calculated on a straight-line basis, principally over the following estimated useful lives: buildings and improvements, 10 to 40 years; machinery and equipment, 3 to 20 years; information technology hardware and software, 3 to 7 years; and leasehold improvements which are included in buildings and improvements, the estimated life of the improvements or the remaining term of the lease, whichever is shorter.
Finite-Lived Intangible Assets	Finite-lived intangible assets include customer relationships, patents, trade names, technological know-how and other intellectual property valued at acquisition and amortized on a straight-line basis over the following estimated useful lives: customer relationships, 11 - 23 years; patents, 11 - 15 years; trade names, 14 - 28 years; and technological know-how, 5 - 28 years. The Company reviews long-lived assets for impairment when events or changes in business conditions indicate that their carrying value may not be recovered. An estimate of undiscounted future cash flows produced by an asset or group of assets is compared to the carrying value to determine whether impairment exists. If assets are determined to be impaired, the loss is measured based on an estimate of fair value using various valuation techniques, including a discounted estimate of future cash flows.
Goodwill	Goodwill represents the difference between the total purchase price and the fair value of identifiable assets and liabilities acquired in business acquisitions. The Company tests goodwill for impairment at the reporting unit level as of November 30 every year or more frequently if events or changes in circumstances indicate the asset might be impaired. A reporting unit is an operating segment or one level below an operating segment (referred to as a component) to which goodwill is assigned when initially recorded. The Company identifies their reporting units by assessing whether the components of their reporting segments constitute businesses for which discrete financial information is available and management of each reporting unit regularly reviews the operating results of those components. The Company has identified nine reporting units under the Taste, Scent and Frutarom Segments: (1) Flavor Compounds, (2) Fragrance Compounds, (3) Fragrance Ingredients, (4) Cosmetic Actives Ingredients, (collectively, the "IFF Legacy Reporting Units"), (5) Taste, (6) Savory, (7) Natural Product Solutions, (8) Frutarom Fragrance and Fine Ingredients and (9) Inclusions, (collectively, the "Frutarom Reporting Units"). These reporting units were determined based on the level at which the performance is measured and reviewed by segment management. When testing goodwill for impairment, the Company has the option of first performing a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount. If the Company elects to bypass the qualitative assessment for any reporting units, or if a qualitative assessment indicates it is more likely than not that the estimated carrying value of a reporting unit exceeds its fair value, the Company performs a quantitative goodwill impairment test. Under the quantitative goodwill impairment test, if a reporting unit’s carrying amount exceeds its fair value, the Company will record an impairment charge based on that difference, and the impairment charge will be limited to the amount of goodwill allocated to that reporting unit.
Income Taxes	The Company accounts for taxes under the asset and liability method. Under this method, deferred income taxes are recognized for temporary differences between the financial statement and tax return bases of assets and liabilities, based on enacted tax rates and other provisions of the tax law. The effect of a change in tax laws or rates on deferred tax assets and liabilities is recognized as income in the period in which such change is enacted. Future tax benefits are recognized to the extent that the realization of such benefits is more likely than not, and a valuation allowance is established for any portion of a deferred tax asset that management believes may not be realized. The Company recognizes uncertain tax positions that it has taken or expects to take on a tax return. Pursuant to accounting requirements, the Company first determines whether it is “more likely than not” its tax position will be sustained if the relevant tax authority were to audit the position with full knowledge of all the relevant facts and other information. For those tax positions that meet this threshold, the Company measures the amount of tax benefit based on the largest amount of tax benefit that it has a greater than 50% chance of realizing in a final settlement with the relevant authority. Those tax positions failing to qualify for initial recognition are recognized in the first interim period in which they meet the more likely than not standard. The Company maintains a cumulative risk portfolio relating to all of its uncertainties in income taxes in order to perform this analysis, but the evaluation of its tax positions requires significant judgment and estimation in part because, in certain cases, tax law is subject to varied interpretation, and whether a tax position will ultimately be sustained may be uncertain. Interest and penalties related to unrecognized tax benefits are recognized as a component of income tax expense.
Retirement Benefits	Current service costs of retirement plans and postretirement health care and life insurance benefits are accrued. Prior service costs resulting from plan improvements are amortized over periods ranging from 10 to 20 years.
Financial Instruments	Derivative financial instruments are used to manage interest and foreign currency exposures. The gain or loss on the hedging instrument is recorded in earnings at the same time as the transaction being hedged is recorded in earnings. The associated asset or liability related to the open hedge instrument is recorded in Prepaid expenses and Other current assets or Other current liabilities, as applicable. The Company records all derivative financial instruments on the balance sheet at fair value. Changes in a derivative’s fair value are recognized in earnings unless specific hedge criteria are met. If the derivative is designated as a fair value hedge, the changes in the fair value of the derivative and of the hedged item attributable to the hedged risk are recognized in Net income. If the derivative is designated as a cash flow hedge, the effective portions of changes in the fair value of the derivative are recorded in Accumulated other comprehensive income ("AOCI") in the accompanying Consolidated Balance Sheet and are subsequently recognized in Net income when the hedged item affects earnings. Ineffective portions of changes in the fair value of cash flow hedges, if any, are recognized as a charge or credit to earnings.
Software Costs	The Company capitalizes direct internal and external development costs for certain significant projects associated with internal-use software and amortizes these costs over 7 years. Neither preliminary evaluation costs nor costs associated with the software after implementation are capitalized. Costs related to projects that are not significant are expensed as incurred.
Net Income Per Share	Under the two-class method, earnings are adjusted by accretion of amounts to redeemable noncontrolling interests recorded at redemption value. The adjustments represent in-substance dividend distributions to the noncontrolling interest holders as the holders have a contractual right to receive a specified amount upon redemption. As a result, earnings are adjusted to reflect this in-substance distribution that is different from other common shareholders. In addition, the Company has unvested share based payment awards with a right to receive nonforfeitable dividends and thus are considered participating securities which are required to be included in the computation of basic and diluted earnings per share. Basic earnings (loss) per share represents the amount of earnings for the period available to each share of common stock outstanding during the period. Basic earnings (loss) per share includes the effect of issuing shares of common stock assuming (i) the prepaid stock purchase contracts (“SPC”) are converted into the minimum number of shares of common stock under the if-converted method, and (ii) an adjustment to earnings (loss) to reflect adjustments made to record the redeemable value of redeemable noncontrolling interests. Diluted earnings (loss) per share also includes the effect of issuing shares of common stock, assuming (i) stock options and warrants are exercised, (ii) restricted stock units are fully vested under the treasury stock method, and (iii) the incremental effect of the prepaid SPC converted into the maximum number of shares of common stock under the if-converted method.
Stock-Based Compensation	Compensation cost of all stock-based awards is measured at fair value on the date of grant and recognized over the service period for which awards are expected to vest. The cost of such stock-based awards is principally recognized on a straight-line attribution basis over their respective vesting periods, net of estimated forfeitures.
Financing Costs	Costs incurred in the issuance of debt are deferred and amortized as part of interest expense over the stated life of the applicable debt instrument. Unamortized deferred financing costs relating to debt are presented as a reduction in the amount of debt outstanding on the Consolidated Balance Sheet. Unamortized deferred financing costs relating to the revolving credit facility are recorded in Other assets on the Consolidated Balance Sheet.
Redeemable Non-controlling Interests	Noncontrolling interests in subsidiaries that are redeemable for cash or other assets outside of the Company’s control are classified as mezzanine equity, outside of equity and liabilities, at the greater of the carrying value or the redemption value. The increases or decreases in the estimated redemption amount are recorded with corresponding adjustments against Capital in excess of par value and are reflected in the computation of earnings per share using the two-class method.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In December 2019, the FASB issued Accounting Standards Update ("ASU") 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes.” The ASU is intended to simplify various aspects related to accounting for income taxes. This guidance is effective for fiscal years beginning after December 15, 2020, and for interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact this guidance may have on its consolidated financial statements. In October 2018, the FASB issued ASU 2018-16, “Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate ("SOFR") Overnight Index Swap ("OIS") Rate as a Benchmark Interest Rate for Hedge Accounting Purposes." The ASU allows for the use of the OIS rate based on the SOFR as a U.S. benchmark interest rate for purposes of applying hedge accounting under ASC 815, Derivatives and Hedging. The Company applied this new guidance as of December 29, 2018, the first day of the Company’s 2019 fiscal year. The adoption of the guidance did not have a material impact on the Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-15, “Intangibles - Goodwill and Other - Internal - Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force).” The ASU aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). This guidance is effective for fiscal years beginning after December 15, 2019, and for interim periods within those fiscal years, with early adoption permitted. The adoption of the guidance will impact the Company going forward in the event the Company enters into applicable cloud computing arrangements. In August 2018, the FASB issued ASU 2018-14, "Compensation - Retirement Benefits - Defined Benefit Plans (Subtopic 715-20)", which modifies the disclosure requirements on company-sponsored defined benefit plans. The ASU is effective for fiscal years beginning after December 15, 2020 on a retrospective basis to all periods presented. Early adoption is permitted. The Company has determined that this guidance will not have an impact on its Consolidated Financial Statements and will have a minimal impact on its disclosures. In August 2018, the FASB issued ASU 2018-13, "Fair Value Measurement (Topic 820)", which modifies, removes and adds certain disclosure requirements on fair value measurements. The ASU is effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. Early adoption is permitted. The Company has determined that this guidance will not have an impact on its Consolidated Financial Statements, as the Company has no applicable fair value measurements that are affected by the guidance. In June 2018, the FASB issued ASU 2018-07, "Compensation - Stock Compensation (Topic 718)" intended to reduce cost and complexity and to improve financial reporting for nonemployee share-based payments. This guidance expands the scope of Topic 718, Compensation-Stock Compensation which currently only includes share-based payments to employees to include share-based payments issued to nonemployees for goods or services. The Company applied this new guidance as of December 29, 2018, the first day of the Company’s 2019 fiscal year. The adoption of the guidance did not have a material impact on the Consolidated Financial Statements. In February 2018, FASB issued ASU 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income" which allows for a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Act, in addition to requiring certain disclosures about stranded tax effects. The guidance was effective as of December 29, 2018, the first day of the Company's fiscal year. The Company elected to not reclassify any stranded tax effects to retained earnings. In August 2017, FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities" which eliminates the requirement to separately measure and present hedge ineffectiveness and aligns the presentation of hedge gains and losses with the underlying hedge item. This guidance is effective, and as required, has been applied on a modified retrospective basis. The impact of the adoption of this standard on December 29, 2018 was an increase in the beginning balance of the currency translation adjustment component of Accumulated other comprehensive loss of $1.0 million , and a decrease in Retained Earnings, as presented in the Company's Consolidated Balance Sheet. See Note 13 of the Consolidated Financial Statements for further details. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments", with subsequent amendments, which requires issuers to measure expected credit losses for financial assets based on historical experience, current conditions and reasonable and supportable forecasts. As such, an entity will use forward-looking information to estimate credit losses. The guidance is effective for financial statements issued for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company's evaluation is substantially complete and has included identifying assets that fall within the scope of the standard. The Company has determined that the most significant asset within the scope of the standard is trade receivables. The Company is analyzing payment history as well as aging to determine the appropriate allowance and will reflect the adoption of the standard on the first day of its 2020 fiscal year.

Nature of Operations and Summ_3

Nature of Operations and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Inventory	inventories consisted of the following: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Raw materials $ 565,071 $ 568,916 Work in process 44,532 48,819 Finished goods 513,465 460,802 Total $ 1,123,068 $ 1,078,537

Restructuring and Other Charg_2

Restructuring and Other Charges (Tables)	12 Months Ended
	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Movements in Restructuring and Related Accruals	Movements in severance-related accruals during 2017 , 2018 and 2019 are as follows: (DOLLARS IN THOUSANDS) Balance at January 1, 2017 Additional Charges (Reversals), Net Non-Cash Charges Cash Payments Balance at December 31, 2017 2015 Severance Plan Severance $ 3,277 $ (2,311 ) $ — $ (966 ) $ — 2017 Productivity Program Severance — 20,620 — (13,081 ) 7,539 Other — 1,402 (528 ) (456 ) 418 Total restructuring $ 3,277 $ 19,711 $ (528 ) $ (14,503 ) $ 7,957 (DOLLARS IN THOUSANDS) Balance at January 1, 2018 Additional Charges, Net Non-Cash Charges Cash Payments Balance at December 31, 2018 2017 Productivity Program Severance $ 7,539 $ 3,884 $ — $ (7,298 ) $ 4,125 Other 418 1,195 (418 ) (120 ) 1,075 Total restructuring $ 7,957 $ 5,079 $ (418 ) $ (7,418 ) $ 5,200 (DOLLARS IN THOUSANDS) Balance at January 1, 2019 Additional Charges (Reversals), Net Non-Cash Charges Cash Payments Balance at December 31, 2019 2017 Productivity Program Severance $ 4,125 $ (1,947 ) $ — $ (1,072 ) $ 1,106 Other 1,075 — — (987 ) 88 Frutarom Integration Initiative Severance — 6,110 — (2,072 ) 4,038 Fixed asset write down — 534 (534 ) — — Other — 3,726 (145 ) (1,096 ) 2,485 2019 Severance Program Severance — 20,871 — (7,974 ) 12,897 Other — 471 — — 471 Total restructuring $ 5,200 $ 29,765 $ (679 ) $ (13,201 ) $ 21,085 Other includes supplier contract termination costs, consulting and advisory fees, and other. Charges by Segment The following table summarizes the total amount of costs incurred in connection with these restructuring programs by segment: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Taste $ 328 $ 1,646 $ 4,505 Scent 11,768 3,433 13,077 Frutarom 10,042 — N/A Shared IT & Corporate Costs 7,627 — 2,129 Total Restructuring and other charges, net $ 29,765 $ 5,079 $ 19,711

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Schedule of assets acquired and liabilities assumed	(IN THOUSANDS) As reported in the fourth quarter of 2018 Measurement period adjustments Final Purchase Price Allocation Cash and cash equivalents $ 140,747 $ — $ 140,747 Other current assets 699,627 (25,706 ) 673,921 Identifiable intangible assets 2,690,000 (21,700 ) 2,668,300 Other assets 353,710 58,401 412,111 Equity method investments 25,791 10,439 36,230 Current liabilities (311,325 ) (7,190 ) (318,515 ) Debt assumed (77,037 ) — (77,037 ) Other liabilities (632,488 ) (39,730 ) (672,218 ) Redeemable noncontrolling interest (97,510 ) (5,392 ) (102,902 ) Noncontrolling interest (3,700 ) — (3,700 ) Excess attributable to Goodwill 4,243,079 30,878 4,273,957 Total Purchase Consideration $ 7,030,894 $ 7,030,894
Schedule of intangible assets acquired	(IN THOUSANDS) Estimated Amounts Weighted-Average Useful Life Product formula $ 290,000 10 years Customer relationships 2,230,000 18 to 20 years Trade names 140,000 23 years Favorable/Unfavorable Leases, net 8,300 5 to 15 years Total $ 2,668,300
Unaudited pro forma information	The unaudited pro forma results for the years ended December 31, 2018 and December 31, 2017 is as follows: Year Ended December 31, (IN THOUSANDS) 2018 2017 Unaudited pro forma net sales $ 5,135,906 $ 4,761,115 Unaudited pro forma net income attributable to the Company 474,498 240,784

Property, Plant and Equipment_2

Property, Plant and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment, Net [Abstract]
Schedule of Property, Plant and Equipment	Property, plant and equipment consisted of the following amounts: (DOLLARS IN THOUSANDS) December 31, 2019 2018 Asset Type Land $ 73,170 $ 75,528 Buildings and improvements 831,579 760,783 Machinery and equipment 1,366,041 1,342,881 Information technology 231,858 179,876 Construction in process 188,120 133,870 Total Property, Plant and Equipment 2,690,768 2,492,938 Accumulated depreciation (1,303,848 ) (1,251,786 ) Total Property, Plant and Equipment, Net $ 1,386,920 $ 1,241,152

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets, Net (Tables)	12 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill by Operating Segment	Goodwill Movements in goodwill during the years ended December 31, 2017 , 2018 and 2019 were as follows: (DOLLARS IN THOUSANDS) Goodwill Balance at January 1, 2017 $ 1,000,123 Acquisitions 87,865 Foreign exchange 32,920 Other (a) 35,380 Balance at December 31, 2017 1,156,288 Acquisitions (b) 4,253,541 Disposals (19,069 ) Foreign exchange (12,372 ) Balance at December 31, 2018 5,378,388 Acquisitions (c) 98,411 Frutarom measurement period adjustment 30,876 Foreign exchange (10,079 ) Balance at December 31, 2019 $ 5,497,596 _______________________ (a) Other above principally represents the increase to Goodwill associated with the update of certain customer relationship assumptions in the final purchase price allocation of David Michael. (b) Primarily relates to the Company's acquisition of Frutarom. (c) Additions primarily relate to the 2019 Acquisition Activity. See Note 3 for details. Goodwill by segment was as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Taste $ 527,785 $ 525,060 Scent 623,373 618,878 Frutarom 4,346,438 4,224,010 Unallocated — 10,440 Total $ 5,497,596 $ 5,378,388
Schedule of Reporting Units Based On Assumptions	Using the income approach and holding other assumptions constant, the following table provides the impact on the headroom by hypothetically changing key assumptions on a standalone basis for the Company's Savory and Taste reporting units as of November 30, 2019: Goodwill Key Assumptions Existing Headroom Resulting Headroom (DOLLARS IN MILLIONS) Discount Rate Terminal Growth 50 bps Increase in Discount Rate 50 bps Decline in Terminal Growth Savory $ 1,205 7.5 % 3.0 % 8.3 % (3.4 )% (0.3 )% Taste 1,662 7.5 % 3.0 % 7.5 % (3.6 )% (0.9 )%
Schedule of Other Intangible Assets	Other intangible assets, net consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Asset Type Customer relationships $ 2,653,446 $ 2,658,659 Technological know-how 468,256 451,016 Trade names & patents 178,968 177,770 Other 40,362 43,766 Total carrying value 3,341,032 3,331,211 Accumulated Amortization Customer relationships (302,047 ) (156,906 ) Technological know-how (135,269 ) (93,051 ) Trade names & patents (27,213 ) (19,593 ) Other (24,568 ) (22,339 ) Total accumulated amortization (489,097 ) (291,889 ) Other intangible assets, net $ 2,851,935 $ 3,039,322
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Amortization expense for the next five years and thereafter, based on preliminary valuations and determinations of useful lives, is expected to be as follows: December 31, (DOLLARS IN THOUSANDS) 2020 2021 2022 2023 2024 Estimated future intangible amortization expense $ 189,896 $ 185,510 $ 181,698 $ 181,586 $ 181,586

Other Assets And Liabilities,_2

Other Assets And Liabilities, Current and Noncurrent (Tables)	12 Months Ended
	Dec. 31, 2019
Other Assets [Abstract]
Schedule of Other Assets	Other current assets consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Value-added tax receivable $ 78,526 $ 62,475 Income tax receivable 69,284 60,139 Prepaid expenses 110,768 90,962 Other 60,756 63,460 Total $ 319,334 $ 277,036 Other assets consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Operating lease right-of-use assets $ 287,870 $ — Finance lease right-of-use assets 4,792 — Deferred income taxes 125,552 89,000 Overfunded pension plans 85,657 75,158 Cash surrender value of life insurance contracts 47,578 43,179 Other (a) 56,967 81,336 Total $ 608,416 $ 288,673 _______________________ (a) Includes land usage rights in China and long term deposits. Other current liabilities consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Accrued payrolls and bonuses $ 102,704 $ 121,080 Rebates and incentives payable 49,938 44,175 Value-added tax payable 20,729 23,253 Interest payable 32,417 36,823 Current pension and other postretirement benefit obligation 11,972 11,528 Accrued insurance (including workers’ compensation) 9,960 9,447 Earn outs payable 12,961 29,974 Restructuring and other charges 21,085 5,200 Short term operating lease obligation 37,744 — Short term financing lease obligation 1,931 — Accrued income taxes 42,141 24,356 Other 233,240 224,672 Total $ 576,822 $ 530,508

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Components of Debt	Debt consisted of the following at December 31: (DOLLARS IN THOUSANDS) Effective Interest Rate 2019 2018 2020 Notes (1) 3.69 % $ 299,381 $ 298,499 2021 Euro Notes (1) 0.82 % 334,561 337,704 2023 Notes (1) 3.30 % 299,004 298,698 2024 Euro Notes (1) 1.88 % 558,124 564,034 2026 Euro Notes (1) 1.93 % 890,183 899,886 2028 Notes (1) 4.57 % 396,688 396,377 2047 Notes (1) 4.44 % 493,571 493,151 2048 Notes (1) 5.12 % 785,996 785,788 Term Loan (1) 3.65 % 239,621 349,163 Amortizing Notes (1) 6.09 % 82,079 125,007 Bank overdrafts and other 3,131 4,695 Deferred realized gains on interest rate swaps 57 57 Total debt $ 4,382,396 $ 4,553,059 Less: Short term borrowings (2) (384,958 ) (48,642 ) Total Long-term debt $ 3,997,438 $ 4,504,417 _______________________ (1) Amount is net of unamortized discount and debt issuance costs. (2)
Debt Instrument Redemption	However, no make-whole premium will be paid for redemptions of each note on or after the following date: Note Redemption Date 2020 Notes September 25, 2020 2021 Euro Notes August 25, 2021 2023 Notes February 1, 2023 2024 Euro Notes December 14, 2023 2026 Euro Notes June 25, 2026 2028 Notes June 26, 2028 2047 Notes December 1, 2046 2048 Notes March 26, 2048
Schedule of Maturities of Long-term Debt	The following table shows the contractual maturities of the Company's long-term debt as of December 31, 2019 . Payments Due by Period (DOLLARS IN THOUSANDS) Total Less than 1 Year 1-3 Years 3-5 Years More than 5 Years 2020 Notes $ 300,000 $ 300,000 $ — $ — $ — 2021 Euro Notes 336,360 — 336,360 — — 2023 Notes 300,000 — — 300,000 — 2024 Euro Notes 560,600 — — 560,600 — 2026 Euro Notes 896,960 — — — 896,960 2028 Notes 400,000 — — — 400,000 2047 Notes 500,000 — — — 500,000 2048 Notes 800,000 — — — 800,000 Term Loan 240,000 35,000 205,000 — — Amortizing Notes 83,433 47,001 36,432 — — Total $ 4,417,353 $ 382,001 $ 577,792 $ 860,600 $ 2,596,960

Tangible Equity Units (Tables)

Tangible Equity Units (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of Allocation of Tangible Equity Units	The proceeds from the issuance of the TEUs were allocated to equity and debt based on the relative fair value of the respective components of each TEU as follows: (IN MILLIONS, EXCEPT FAIR VALUE PER TEU) SPC Amortizing Note Total Fair Value per TEU $ 41.5 $ 8.5 $ 50.0 Gross Proceeds $ 685.5 $ 139.5 $ 825.0 Less: Issuance costs 20.4 4.4 24.8 Net Proceeds $ 665.1 $ 135.1 $ 800.2
Schedule of Stock Purchase Contract	Unless settled early at the holder’s or the Company's election, each SPC will automatically settle on September 15, 2021 for a number of shares of common stock per SPC based on the 20 day volume-weighted average price (“VWAP”) of the Company's common stock as follows: VWAP of IFF Common Stock Common Stock Issued Equal to or greater than $159.54 0.3134 shares (minimum settlement rate) Less than $159.54, but greater than $130.25 $50 divided by VWAP Less than or equal to $130.25 0.3839 shares (maximum settlement rate)

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Schedule of Earnings before Income Taxes	Earnings before income taxes consisted of the following: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 U.S. loss before taxes $ (110,363 ) $ (99,125 ) $ (24 ) Foreign income before taxes 667,815 546,882 537,069 Total income before taxes $ 557,452 $ 447,757 $ 537,045
Schedule of Income Tax Provision	The income tax provision consisted of the following: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Current tax provision Federal $ 9,979 $ (11,568 ) $ 68,886 State and local 429 1,709 137 Foreign 146,055 98,433 113,468 Total current tax provision 156,463 88,574 182,491 Deferred tax provision Federal (41,126 ) (8,287 ) 74,446 State and local 7,598 (7,092 ) (11,537 ) Foreign (25,751 ) 34,781 (4,020 ) Total deferred tax (benefit) provision (59,279 ) 19,402 58,889 Total taxes on income $ 97,184 $ 107,976 $ 241,380
Schedule of Reconciliation between U.S. Federal Statutory Income Tax Rate to Actual Effective Tax Rate	Reconciliation between the U.S. federal statutory income tax rate to the actual effective tax rate was as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Statutory tax rate 21.0 % 21.0 % 35.0 % Difference in effective tax rate on foreign earnings and remittances (6.8 ) (6.1 ) (12.6 ) Tax benefit from supply chain optimization (1.0 ) (3.0 ) (2.3 ) Unrecognized tax benefit, net of reversals 3.4 2.9 2.3 U.S. tax reform — (1.8 ) 26.5 Deferred taxes on deemed repatriation 0.8 10.1 0.3 Global intangible low-taxed income — 1.8 — Acquisition costs 0.5 1.3 — Establishment (release) of valuation allowance on state deferred 1.7 (1.5 ) (1.7 ) State and local taxes (0.8 ) 0.6 0.1 Other, net (1.4 ) (1.2 ) (2.7 ) Effective tax rate 17.4 % 24.1 % 44.9 %
Schedule of Deferred Tax Assets and Liabilities	The deferred tax assets and liabilities consisted of the following amounts: December 31, (DOLLARS IN THOUSANDS) 2019 2018 Employee and retiree benefits $ 87,924 $ 80,382 Credit and net operating loss carryforwards 220,156 225,152 Intangible assets 8,477 12,489 Amortizable R&D expenses 15,477 481 Gain on foreign currency translation 3,285 — Interest limitation 39,867 19,380 Inventory 14,396 13,308 Lease obligations 53,751 — Other, net 14,351 17,528 Gross deferred tax assets 457,684 368,720 Property, plant and equipment, net (49,158 ) (22,511 ) Intangible assets (621,044 ) (616,333 ) Right-of-use assets (53,555 ) — Loss on foreign currency translation — (7,717 ) Deferred taxes on deemed repatriation (46,066 ) (88,759 ) Gross deferred tax liabilities (769,823 ) (735,320 ) Valuation allowance (203,765 ) (200,280 ) Total net deferred tax liabilities $ (515,904 ) $ (566,880 )
Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Balance of unrecognized tax benefits at beginning of year $ 50,953 $ 38,162 $ 26,428 Gross amount of increases in unrecognized tax benefits as a result of positions taken during a prior year 20,361 9,751 1,169 Gross amount of decreases in unrecognized tax benefits as a result of positions taken during a prior year (2,241 ) (5,362 ) (268 ) Gross amount of increases in unrecognized tax benefits as a result of positions taken during the current year 13,274 14,677 13,191 The amounts of decreases in unrecognized benefits relating to settlements with taxing authorities (3,575 ) (4,550 ) — Reduction in unrecognized tax benefits due to the lapse of applicable statute of limitation (3,973 ) (1,725 ) (2,358 ) Balance of unrecognized tax benefits at end of year $ 74,799 $ 50,953 $ 38,162

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Lease Costs	The components of lease expense were as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Operating lease cost $ 52,213 Financing lease cost 2,235 The total rental expense, as calculated prior to the adoption of ASU 2016-02, was as follows: December 31, (DOLLARS IN THOUSANDS) 2018 2017 Rental Expense $ 42,365 $ 37,785 Supplemental cash flow information related to leases was as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flow from operating activities $ 51,444 Operating cash flow from finance leases 64 Financing cash flow from finance leases 2,204 Right-of-use assets obtained in exchange for lease obligations Operating leases 29,823 Finance leases 2,833 Weighted average remaining lease term and discount rate were as follows: December 31, 2019 Weighted average remaining lease term in years Operating leases 11.3 Finance leases 3.3 Weighted average discount rate Operating leases 3.89 % Finance leases 1.69 %
Supplemental Balance Sheet Information	Right of use assets by region were as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Operating Leases North America $ 143,556 Europe, Africa and Middle East 110,552 Greater Asia 20,492 Latin America 13,270 Consolidated $ 287,870 Financing Leases North America $ 246 Europe, Africa and Middle East 3,221 Greater Asia 516 Latin America 809 Consolidated $ 4,792 Supplemental balance sheet information related to leases was as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Operating Leases Operating lease right-of-use assets (1) $ 287,870 Other current liabilities (2) 37,744 Operating lease liabilities (3) 253,367 Total operating lease liabilities 291,111 Financing Leases Financing lease right-of-use assets (1) 4,792 Other current liabilities (2) 1,931 Financing lease liabilities (3) 2,525 Total financing lease liabilities 4,456
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Maturities of lease liabilities were as follows: (DOLLARS IN THOUSANDS) December 31, 2019 Operating Leases Less than 1 Year $ 49,199 1-3 Years 81,829 3-5 Years 60,489 After 5 years 178,231 Less: Imputed Interest (78,637 ) Total $ 291,111 Financing Leases Less than 1 Year $ 2,036 1-3 Years 2,073 3-5 Years 486 After 5 years 26 Less: Imputed Interest (165 ) Total $ 4,456
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Minimum rental payments under non-cancellable operating leases, as calculated prior to the adoption of ASU 2016-02, were as follows: (DOLLARS IN THOUSANDS) December 31, 2018 2019 $ 49,350 2020 42,156 2021 36,445 2022 32,174 2023 28,499 Thereafter 201,078 Total $ 389,700

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents the Company's revenues disaggregated by product categories: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 (a) Flavor Compounds $ 2,850,498 $ 1,990,985 $ 1,632,166 Fragrance Compounds 1,543,834 1,496,493 1,424,612 Ingredients 745,752 490,061 341,941 Total revenues $ 5,140,084 $ 3,977,539 $ 3,398,719 _______________________ (a) Prior period amounts have not been adjusted based on the modified retrospective method. The following table presents the Company's revenues disaggregated by region, based on the region of their customers: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 (a) Europe, Africa and Middle East $ 2,081,758 $ 1,396,316 $ 1,065,596 Greater Asia 1,162,992 991,015 903,546 North America 1,170,497 1,010,126 901,821 Latin America 724,837 580,082 527,756 Total revenues $ 5,140,084 $ 3,977,539 $ 3,398,719 _______________________ (a) Prior period amounts have not been adjusted based on the modified retrospective method.

Net Income Per Share (Tables)

Net Income Per Share (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Reconciliation of Shares Used in Computations of Basic and Diluted Net Income Per Share	Basic and diluted net income per share is based on the weighted average number of shares outstanding. A reconciliation of shares used in the computation of basic and diluted net income per share is as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Net Income Net income attributable to IFF stockholders $ 455,873 $ 337,302 $ 295,665 Less: Increase in redemption value of redeemable noncontrolling interests in excess of earnings allocated (2,097 ) (2,848 ) — Net income available to IFF stockholders $ 453,776 $ 334,454 $ 295,665 Shares Weighted average common shares outstanding (basic) (1) 111,966 87,551 79,070 Adjustment for assumed dilution (2) : Stock options and restricted stock awards 356 303 300 SPC portion of the TEUs 985 267 — Weighted average shares assuming dilution (diluted) 113,307 88,121 79,370 Net Income per Share Net income per share - basic $ 4.05 $ 3.81 $ 3.73 Net income per share - dilutive 4.00 3.79 3.72 _______________________ (1) For the year ended December 31, 2019 and 2018 , the TEUs were assumed to be outstanding at the minimum settlement amount for weighted-average shares for basic earnings per share. See below for details. (2) Effect of dilutive securities includes dilution under stock plans and incremental impact of TEUs. See below for details.

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of Stock Repurchase Activity	A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is summarized as follows: (DOLLARS IN THOUSANDS) Shares Repurchased Weighted- Average Price per Share Dollar Amount Repurchased Year Ended December 31, 2018 108,109 $ 143.15 $ 15,475 Year Ended December 31, 2017 459,264 126.44 58,069

Stock Compensation Plans (Table

Stock Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation Expense Included in Consolidated Statement of Income and Comprehensive Income	Total stock-based compensation expense included in the Consolidated Statement of Income and Comprehensive Income was as follows: December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Equity-based awards $ 34,482 $ 29,401 $ 26,567 Liability-based awards 4,128 2,517 6,014 Total stock-based compensation 38,610 31,918 32,581 Less tax benefit (7,305 ) (6,556 ) (5,659 ) Total stock-based compensation, net of tax $ 31,305 $ 25,362 $ 26,922
SSAR's and Stock Option Activity	SSARs and options activity was as follows: (SHARE AMOUNTS IN THOUSANDS) Shares Subject to SSARs/Options Weighted Average Exercise Price SSARs/ Options Exercisable December 31, 2018 12 $ 117.21 4 Granted 6 137.82 Exercised (3 ) 60.39 Canceled — — December 31, 2019 15 $ 138.73 1
SSAR's and Stock Option Outstanding	SSARs and options outstanding at December 31, 2019 was as follows: Price Range Number Outstanding (in thousands) Weighted Average Remaining Contractual Life (in years) Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Over $115 15 5.68 $ 138.73 $ —
SSAR's and Stock Option Exercisable	SSARs and options exercisable as of December 31, 2019 was as follows: Price Range Number Exercisable (in thousands) Weighted Average Remaining Contractual Life (in years) Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Over $115 1 2.34 $ 118.10 $ 2
RSU's [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU, PRS and Cash RSU Activity	RSU activity was as follows: Number of Shares (in thousands) Weighted Average Grant Date Fair Value Per Share December 31, 2018 448 $ 125.99 Granted 230 128.98 Vested (164 ) 116.80 Forfeited (17 ) 130.85 December 31, 2019 497 $ 130.24
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU, PRS and Cash RSU Activity	The following table summarizes the Company's PRSU activity for the years ended December 31, 2019 , 2018 and 2017 : (DOLLARS IN MILLIONS) Issued Shares Aggregate Purchase Price Covered Shares 2019 61,991 $ 8.5 30,996 2018 66,674 9.3 33,337 2017 41,801 5.8 20,901 PRSU activity was as follows: (SHARE AMOUNTS IN THOUSANDS) Number of Shares Weighted Average Grant Date Fair Value Per Share December 31, 2018 162 $ 132.96 Granted 62 137.82 Vested (54 ) 119.81 Forfeited (2 ) 138.97 December 31, 2019 168 $ 138.96
Cash RSU's [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU, PRS and Cash RSU Activity	Cash RSU activity was as follows: (SHARE AMOUNTS IN THOUSANDS) Cash RSUs Weighted Average Fair Value Per Share December 31, 2018 92 $ 132.23 Granted 37 126.35 Vested (32 ) 134.68 Forfeited (2 ) 132.32 December 31, 2019 95 $ 126.35

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Reportable Segment Information	Capital Expenditures Depreciation and Amortization (DOLLARS IN THOUSANDS) 2019 2018 2017 2019 2018 2017 Taste $ 80,267 $ 70,028 $ 68,937 $ 56,674 $ 54,534 $ 53,534 Scent 92,077 82,206 53,089 65,386 64,018 59,951 Frutarom 55,356 12,878 N/A 194,956 47,738 N/A Global assets 8,278 4,982 6,947 6,314 7,502 4,482 Consolidated $ 235,978 $ 170,094 $ 128,973 $ 323,330 $ 173,792 $ 117,967 December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Net sales Taste $ 1,731,919 $ 1,737,349 $ 1,632,166 Scent 1,922,717 1,880,630 1,766,553 Frutarom 1,485,448 359,560 N/A Consolidated $ 5,140,084 $ 3,977,539 $ 3,398,719 December 31, (DOLLARS IN THOUSANDS) 2019 2018 Segment assets Taste $ 2,222,154 $ 2,024,573 Scent 2,549,113 2,340,131 Frutarom 8,306,003 7,961,538 Global assets 210,141 563,153 Consolidated $ 13,287,411 $ 12,889,395 December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Segment profit: Taste $ 382,590 $ 395,190 $ 360,483 Scent 333,522 329,548 318,954 Frutarom 126,804 27,358 N/A Global expenses (49,836 ) (74,730 ) (60,810 ) Operational Improvement Initiatives (a) (2,267 ) (2,169 ) (1,802 ) Acquisition Related Costs (b) — 1,289 (20,389 ) Integration Related Costs (c) (55,160 ) (7,188 ) (4,179 ) Legal Charges/Credits, net (d) — — (1,000 ) Tax Assessment (e) — — (5,331 ) Restructuring and Other Charges, net (f) (29,765 ) (4,086 ) (19,711 ) (Losses) gains on Sale of Assets (2,367 ) 1,177 184 FDA Mandated Product Recall (g) (250 ) 7,125 (11,000 ) UK Pension Settlement Charges (h) — — (2,769 ) Frutarom Acquisition Related Costs (i) (5,940 ) (89,632 ) — Compliance Review & Legal Defense Costs (j) (11,314 ) — — N&B Transaction Related Costs (k) (20,747 ) — — Operating Profit 665,270 583,882 552,630 Interest expense (138,221 ) (132,558 ) (65,363 ) Loss on extinguishment of debt — (38,810 ) — Other income, net 30,403 35,243 49,778 Income before taxes $ 557,452 $ 447,757 $ 537,045 Profit margin Taste 22.1 % 22.7 % 22.1 % Scent 17.3 % 17.5 % 18.1 % Frutarom 8.5 % 7.6 % N/A Consolidated 12.9 % 14.7 % 16.3 % (a) For 2019, represents accelerated depreciation related to plant relocations in India and China. For 2018, represents accelerated depreciation in India and Taiwan asset write off. For 2017, represents accelerated depreciation and idle labor costs in Hangzhou, China. (b) For 2018, represents adjustments to the contingent consideration payable for PowderPure, and transaction costs related to Fragrance Resources and PowderPure within Selling and administrative expenses. For 2017, represents the amortization of inventory "step-up" included in Cost of goods sold and transaction costs related to the acquisition of Fragrance Resources and PowderPure within Selling and administrative expenses. (c) For 2019 and 2018, represents costs related to the integration of the Frutarom acquisition, principally advisory services. For 2017, represents costs related to the integration of the David Michael and Fragrance Resources acquisitions. (d) Represents an additional charge related to litigation settlement. (e) Represents the reserve for payment of a tax assessment related to commercial rent for prior periods. (f) For 2019, represents costs primarily related to the Frutarom Integration Initiative, the 2019 Severance Program, including severance related to outsourcing the IT function. For 2018, represents severance costs related to the 2017 Productivity Program and costs associated with the termination of agent relationships in a subsidiary. For 2017, represents severance costs related to the 2017 Productivity Program. (g) For 2019, represents additional claims that management will pay to co-packers. For 2018, principally represents recoveries from the supplier for the third and fourth quarter, partially offset by final payments to the customer made for the effected product in the first quarter. For 2017, represents management's best estimate of losses related to the previously disclosed FDA mandated recall. (h) Represents pension settlement charges incurred in one of the Company's UK pension plans. (i) Represents transaction-related costs and expenses related to the acquisition of Frutarom. For 2019, amount primarily includes amortization for inventory "step-up" costs and transaction costs. For 2018, amount primarily includes $23.5 million of amortization for inventory "step-up" costs and $66.0 million of transaction costs included in Selling and administrative expenses. (j) Costs related to reviewing the nature of inappropriate payments and review of compliance in certain other countries. In addition, includes legal costs for related shareholder lawsuits. (k) Represents costs and expenses related to the pending transaction with Nutrition & Biosciences Inc.
Net Sales by Geographic Area	Net Sales by Geographic Area (DOLLARS IN THOUSANDS) 2019 2018 2017 Europe, Africa and Middle East $ 2,081,758 $ 1,396,316 $ 1,065,596 Greater Asia 1,162,992 991,015 903,546 North America 1,170,497 1,010,126 901,821 Latin America 724,837 580,082 527,756 Consolidated $ 5,140,084 $ 3,977,539 $ 3,398,719 Net Sales by Geographic Area (DOLLARS IN THOUSANDS) 2019 2018 2017 Net sales related to the U.S. $ 1,052,654 $ 952,550 $ 864,050 Net sales attributed to all foreign countries 4,087,430 3,024,989 2,534,669

Employee Benefits (Tables)

Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2019
Retirement Benefits [Abstract]
Plan Assets and Benefit Obligations of Defined Benefit Pension Plans	The plan assets and benefit obligations of the defined benefit pension plans are measured at December 31 of each year. U.S. Plans Non-U.S. Plans (DOLLARS IN THOUSANDS) 2019 2018 2017 2019 2018 2017 Components of net periodic benefit cost Service cost for benefits earned (1) $ 1,378 $ 1,971 $ 2,175 $ 19,319 $ 18,738 $ 18,652 Interest cost on projected benefit obligation (2) 21,954 19,393 20,075 17,775 17,704 17,116 Expected return on plan assets (2) (27,927 ) (30,994 ) (35,577 ) (43,480 ) (50,546 ) (50,626 ) Net amortization of deferrals (2) 5,464 6,592 5,424 11,654 11,798 14,403 Settlements and curtailments (2) — — — 189 — 2,746 Net periodic benefit cost 869 (3,038 ) (7,903 ) 5,457 (2,306 ) 2,291 Defined contribution and other retirement plans 9,363 10,527 8,604 9,001 6,859 5,681 Total expense $ 10,232 $ 7,489 $ 701 $ 14,458 $ 4,553 $ 7,972 Changes in plan assets and benefit obligations recognized in OCI Net actuarial (gain) loss $ (3,140 ) $ 21,050 $ 61,865 $ 11,937 Recognized actuarial loss (5,421 ) (6,549 ) (12,479 ) (12,590 ) Prior service cost — — — 2,776 Recognized prior service (cost) credit (43 ) (43 ) 636 792 Currency translation adjustment — — 6,584 (16,978 ) Total (gain) loss recognized in OCI (before tax effects) $ (8,604 ) $ 14,458 $ 56,606 $ (14,063 )
Components of Net Periodic Benefit Cost and Changes in Plan Assets and Benefit Obligations Recognized in OCI
Amounts Expected to be Recognized in Net Periodic Cost	The amounts expected to be recognized in net periodic cost in 2020 are: (DOLLARS IN THOUSANDS) U.S. Plans Non-U.S. Plans Postretirement Benefits Actuarial loss recognition $ 7,388 $ 15,851 $ 1,367 Prior service cost (credit) recognition 43 (345 ) (5,964 )
Weighted-Average Actuarial Assumption Used to Determine Expense	U.S. Plans Non-U.S. Plans 2019 2018 2017 2019 2018 2017 Discount rate 4.31 % 3.69 % 4.19 % 2.22 % 2.15 % 2.14 % Expected return on plan assets 5.60 % 6.20 % 7.30 % 4.87 % 5.19 % 5.95 % Rate of compensation increase 3.25 % 3.25 % 3.25 % 1.93 % 1.98 % 1.97 %
Changes in Postretirement Benefit Obligation and Plan Assets	Changes in the postretirement benefit obligation and plan assets, as applicable, are detailed in the following table: U.S. Plans Non-U.S. Plans Postretirement Benefits (DOLLARS IN THOUSANDS) 2019 2018 2019 2018 2019 2018 Benefit obligation at beginning of year $ 562,043 $ 602,783 $ 957,935 $ 973,061 $ 59,625 $ 82,714 Service cost for benefits earned 1,378 1,971 19,319 18,738 568 755 Interest cost on projected benefit obligation 21,954 19,393 17,775 17,704 2,265 2,460 Actuarial (gain) loss 68,839 (33,284 ) 119,891 (29,433 ) 3,941 (6,677 ) Plan amendments — — — 2,776 — (14,862 ) Adjustments for expense/tax contained in service cost — — (1,333 ) (1,290 ) — — Plan participants’ contributions — — 2,803 2,047 437 435 Benefits paid (33,560 ) (32,093 ) (28,977 ) (33,862 ) (2,662 ) (5,200 ) Curtailments / settlements — — (3,455 ) (2,751 ) — — Translation adjustments — — 13,935 (49,027 ) — — Acquisitions/Transferred Liabilities — 3,273 — 48,356 — — Other — — 1,191 11,616 — — Benefit obligation at end of year $ 620,654 $ 562,043 $ 1,099,084 $ 957,935 $ 64,174 $ 59,625 Fair value of plan assets at beginning of year $ 532,381 $ 581,917 $ 896,782 $ 929,810 Actual return on plan assets 99,904 (23,339 ) 100,163 6,699 Employer contributions 3,683 3,524 20,031 18,238 Participants’ contributions — — 2,803 2,047 Benefits paid (33,560 ) (32,093 ) (28,977 ) (33,862 ) Settlements — — (3,455 ) (1,564 ) Translation adjustments — — 16,982 (47,247 ) Acquisitions/Transferred Assets — 2,372 — 21,672 Other — — 954 989 Fair value of plan assets at end of year $ 602,408 $ 532,381 $ 1,005,283 $ 896,782 Funded status at end of year $ (18,246 ) $ (29,662 ) $ (93,801 ) $ (61,153 )
Amounts Recognized in Balance Sheet	U.S. Plans Non-U.S. Plans (DOLLARS IN THOUSANDS) 2019 2018 2019 2018 Other assets $ 35,239 $ 20,949 $ 50,418 $ 54,434 Other current liabilities (4,193 ) (4,092 ) (1,179 ) (882 ) Retirement liabilities (49,292 ) (46,519 ) (143,040 ) (114,705 ) Net amount recognized $ (18,246 ) $ (29,662 ) $ (93,801 ) $ (61,153 )
Amounts Recognized in Accumulated Other Comprehensive Income	U.S. Plans Non-U.S. Plans Postretirement Benefits (DOLLARS IN THOUSANDS) 2019 2018 2019 2018 2019 2018 Net actuarial loss $ 142,828 $ 151,389 $ 376,991 $ 321,144 $ 15,436 $ 12,627 Prior service cost (credit) 108 151 (3,087 ) (3,926 ) (27,138 ) (33,189 ) Total AOCI (before tax effects) $ 142,936 $ 151,540 $ 373,904 $ 317,218 $ (11,702 ) $ (20,562 )
Accumulated Benefit Obligation	U.S. Plans Non-U.S. Plans (DOLLARS IN THOUSANDS) 2019 2018 2019 2018 Accumulated Benefit Obligation — end of year $ 618,486 $ 559,775 $ 1,062,515 $ 923,586 Information for Pension Plans with an ABO in excess of Plan Assets: Projected benefit obligation $ 55,714 $ 52,714 $ 656,574 $ 582,466 Accumulated benefit obligation 55,671 52,690 620,087 548,116 Fair value of plan assets 2,229 2,103 512,356 466,878 Weighted-average assumptions used to determine obligations at December 31 Discount rate 3.26 % 4.31 % 1.50 % 2.22 % Rate of compensation increase 3.25 % 3.25 % 2.48 % 1.91 %
Estimated Future Benefit Payments	(DOLLARS IN THOUSANDS) U.S. Plans Non-U.S. Plans Postretirement Benefits Estimated Future Benefit Payments 2020 $ 37,152 $ 27,460 $ 3,808 2021 37,908 27,607 3,845 2022 38,411 28,169 3,805 2023 38,796 28,993 3,797 2024 38,831 30,142 3,891 2025 - 2029 189,425 169,438 19,442 Contributions Required Company Contributions in Following Year (2020) $ 4,387 $ 20,944 $ 3,808
Percentage of Assets Invested	U.S. Plans Non-U.S. Plans 2019 2018 2019 2018 Cash and cash equivalents 1 % 1 % 1 % 3 % Equities 13 % 25 % 14 % 12 % Fixed income 86 % 74 % 37 % 36 % Property — % — % 8 % 8 % Alternative and other investments — % — % 40 % 41 %
Fair Value Hierarchy of Plan Assets	The following tables present the Company's plan assets for the U.S. and non-U.S. plans using the fair value hierarchy as of December 31, 2019 and 2018 . The plans’ assets were accounted for at fair value and are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company's assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of fair value assets and their placement within the fair value hierarchy levels. For more information on a description of the fair value hierarchy, see Note 17 . U.S. Plans for the Year Ended December 31, 2019 (DOLLARS IN THOUSANDS) Level 1 Level 2 Level 3 Total Cash Equivalents $ — $ 4,431 $ — $ 4,431 Fixed Income Securities Government & Government Agency Bonds — 19,427 — 19,427 Corporate Bonds — 112,137 — 112,137 Municipal Bonds — 8,460 — 8,460 Assets measured at net asset value (1) — — — 456,606 Total $ — $ 144,455 $ — $ 601,061 Receivables $ 1,347 Total $ 602,408 U.S. Plans for the Year Ended December 31, 2018 (DOLLARS IN THOUSANDS) Level 1 Level 2 Level 3 Total Cash Equivalents $ — $ 3,490 $ — $ 3,490 Fixed Income Securities Government & Government Agency Bonds — 17,827 — 17,827 Corporate Bonds — 96,566 — 96,566 Municipal Bonds — 8,138 — 8,138 Assets measured at net asset value (1) — — — 404,895 Total $ — $ 126,021 $ — $ 530,916 Receivables $ 1,465 Total $ 532,381 _______________________ (1) Investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the table above are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Balance Sheet. The total amount measured at net asset value includes approximately $80.4 million and $133.1 million in pooled equity funds and $376.0 million and $271.8 million in fixed income mutual funds for the years ended December 31, 2019 and 2018 , respectively. Non-U.S. Plans for the Year Ended December 31, 2019 (DOLLARS IN THOUSANDS) Level 1 Level 2 Level 3 Total Cash $ 5,921 $ — $ — $ 5,921 Equity Securities U.S. Large Cap 58,926 25,616 — 84,542 Non-U.S. Large Cap 24,720 — — 24,720 Non-U.S. Mid Cap 956 — — 956 Non-U.S. Small Cap 738 — — 738 Emerging Markets 27,374 — — 27,374 Fixed Income Securities U.S. Treasuries/Government Bonds 108 — — 108 U.S. Corporate Bonds — 32,013 — 32,013 Non-U.S. Treasuries/Government Bonds 117,890 — — 117,890 Non-U.S. Corporate Bonds 33,320 150,034 — 183,354 Non-U.S. Asset-Backed Securities — 33,654 — 33,654 Non-U.S. Other Fixed Income 2,553 — — 2,553 Alternative Types of Investments Insurance Contracts — 152,025 266 152,291 Derivative Financial Instruments — 65,016 — 65,016 Absolute Return Funds 3,431 154,463 — 157,894 Other — 2,330 30,183 32,513 Real Estate Non-U.S. Real Estate — — 83,746 83,746 Total $ 275,937 $ 615,151 $ 114,195 $ 1,005,283 Non-U.S. Plans for the Year Ended December 31, 2018 (DOLLARS IN THOUSANDS) Level 1 Level 2 Level 3 Total Cash $ 25,386 $ — $ — $ 25,386 Equity Securities U.S. Large Cap 35,929 11,340 — 47,269 Non-U.S. Large Cap 30,841 8,381 — 39,222 Non-U.S. Mid Cap 905 — — 905 Non-U.S. Small Cap 628 — — 628 Emerging Markets 22,608 — — 22,608 Fixed Income Securities U.S. Treasuries/Government Bonds 131 — — 131 U.S. Corporate Bonds — 29,682 — 29,682 Non-U.S. Treasuries/Government Bonds 137,267 5,494 — 142,761 Non-U.S. Corporate Bonds 30,893 85,841 — 116,734 Non-U.S. Asset-Backed Securities — 32,587 — 32,587 Non-U.S. Other Fixed Income 2,324 — — 2,324 Alternative Types of Investments Insurance Contracts — 152,947 254 153,201 Derivative Financial Instruments — 54,512 — 54,512 Absolute Return Funds 3,584 128,111 — 131,695 Other — 2,374 25,913 28,287 Real Estate Non-U.S. Real Estate — — 68,850 68,850 Total $ 290,496 $ 511,269 $ 95,017 $ 896,782
Reconciliation of Level 3 Non-U.S. Plan Assets Held	The following table presents a reconciliation of Level 3 non-U.S. plan assets held during the year ended December 31, 2019 : Non-U.S. Plans (DOLLARS IN THOUSANDS) Real Estate Hedge Funds Total Ending balance as of December 31, 2018 $ 69,104 $ 25,913 $ 95,017 Actual return on plan assets 15,033 5,811 20,844 Purchases, sales and settlements (124 ) (1,542 ) (1,666 ) Ending balance as of December 31, 2019 $ 84,013 $ 30,182 $ 114,195
Weighted Average Assumptions Used to Determine Postretirement Benefit Expense and Obligation	The following weighted average assumptions were used to determine the postretirement benefit expense and obligation for the years ended December 31: Expense Liability 2019 2018 2019 2018 Discount rate 4.30 % 3.70 % 3.30 % 4.30 % Current medical cost trend rate 7.50 % 7.75 % 7.25 % 7.50 % Ultimate medical cost trend rate 4.75 % 4.75 % 4.75 % 4.75 % Medical cost trend rate decreases to ultimate rate in year 2030 2030 2030 2030
Sensitivity of Disclosures to Changes in Selected Assumptions	The following table presents the sensitivity of disclosures to changes in selected assumptions for the year ended December 31, 2019 : (DOLLARS IN THOUSANDS) U.S. Pension Plans Non-U.S. Pension Plans Postretirement Benefit Plan 25 Basis Point Decrease in Discount Rate Change in PBO 14,613 55,415 N/A Change in ABO 14,534 55,374 1,944 Change in pension expense (102 ) 2,687 40 25 Basis Point Decrease in Long-Term Rate of Return Change in pension expense 1,248 1,935 N/A

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Carrying Amount and Estimated Fair Value of Financial Instruments	The carrying value and the estimated fair values of financial instruments at December 31 consisted of the following: 2019 2018 (DOLLARS IN THOUSANDS) Carrying Value Fair Value Carrying Value Fair LEVEL 1 Cash and cash equivalents (1) $ 606,823 $ 606,823 $ 634,897 $ 634,897 LEVEL 2 Credit facilities and bank overdrafts (2) 3,131 3,131 4,695 4,695 Derivatives Derivative assets (3) 3,575 3,575 7,229 7,229 Derivative liabilities (3) 7,415 7,415 6,907 6,907 Long-term debt: (4) 2020 Notes 299,381 302,700 298,499 300,356 2021 Euro Notes 334,561 338,244 337,704 341,094 2023 Notes 299,004 305,580 298,698 293,017 2024 Euro Notes 558,124 586,825 564,034 584,129 2026 Euro Notes 890,183 945,306 899,886 909,439 2028 Notes 396,688 441,500 396,377 401,231 2047 Notes 493,571 526,106 493,151 446,725 2048 Notes 785,996 919,040 785,788 783,925 Term Loan (2) 239,621 240,000 349,163 350,000 Amortizing Notes (5) 82,079 84,430 125,007 127,879 _______________________ (1) The carrying amount of cash and cash equivalents approximates fair value due to the short maturity of those instruments. (2) The carrying amount approximates fair value as the interest rate is reset frequently based on current market rates as well as the short maturity of those instruments.
Derivative Instruments Notional Amount Outstanding	The following table shows the notional amount of the Company’s derivative instruments outstanding as of December 31, 2019 and December 31, 2018 : December 31, (DOLLARS IN THOUSANDS) 2019 2018 Foreign currency contracts $ 473,600 $ 585,581 Cross currency swaps 600,000 600,000
Derivative Instruments Measured at Fair Value	The following tables show the Company’s derivative instruments measured at fair value (Level 2 of the fair value hierarchy) as reflected in the Consolidated Balance Sheet as of December 31, 2019 and December 31, 2018 : December 31, 2019 (DOLLARS IN THOUSANDS) Fair Value of Derivatives Fair Value of Derivatives Not Designated as Hedging Instruments Total Fair Value Derivative assets (a) Foreign currency contracts $ 1,310 $ 2,265 $ 3,575 Derivative liabilities (b) Foreign currency contracts 797 2,431 3,228 Cross currency swaps 4,187 — 4,187 Total derivative liabilities $ 4,984 $ 2,431 $ 7,415 December 31, 2018 (DOLLARS IN THOUSANDS) Fair Value of Derivatives Designated as Hedging Instruments Fair Value of Derivatives Not Designated as Hedging Instruments Total Fair Value Derivative assets (a) Foreign currency contracts $ 4,122 $ 2,020 $ 6,142 Cross currency swaps 1,087 — 1,087 Total derivative assets 5,209 2,020 7,229 Derivative liabilities (b) Foreign currency contracts $ 205 $ 6,702 $ 6,907 _______________________ (a) Derivative assets are recorded to Prepaid expenses and other current assets in the Consolidated Balance Sheet. (b) Derivative liabilities are recorded as Other current liabilities in the Consolidated Balance Sheet.
Derivative Instruments Which Were Not Designated as Hedging Instruments	The following table shows the effect of the Company’s derivative instruments which were not designated as hedging instruments in the Consolidated Statement of Income and Comprehensive Income for the years ended December 31, 2019 and December 31, 2018 : (DOLLARS IN THOUSANDS) Amount of Gain (Loss) For the year ended December 31, Location of Gain (Loss) Recognized in Income on Derivative 2019 2018 Foreign currency contracts $ 557 $ 1,999 Other (income) expense, net Deal contingent swaps Foreign currency contracts — 12,154 Other income, net Interest rate swaps — 352 Interest expense $ 557 $ 14,505
Derivative Instruments Designated as Cash Flow and Net Investment Hedging Instruments	The following table shows the effect of the Company’s derivative instruments designated as cash flow and net investment hedging instruments, net of tax, in the Consolidated Statement of Income and Comprehensive Income for the years ended December 31, 2019 and December 31, 2018 (in thousands): Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion) Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion) Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion) For the years ended December 31, For the years ended December 31, 2019 2018 2019 2018 Derivatives in Cash Flow Hedging Relationships: Foreign currency contracts $ (3,535 ) $ 14,220 Cost of goods sold $ 8,504 $ (6,203 ) Interest rate swaps (1) 857 864 Interest expense (857 ) (864 ) Derivatives or debt instruments in Net Investment Hedging Relationships: Foreign currency contracts — (518 ) N/A — — 2024 Euro Notes 5,440 20,539 N/A — — 2021 Euro Notes & 2026 Euro Notes 11,969 30,390 N/A — — Total $ 14,731 $ 65,495 $ 7,647 $ (7,067 ) _______________________ (1)

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income (Loss)	The following tables present changes in the accumulated balances for each component of other comprehensive income, including current period other comprehensive income and reclassifications out of accumulated other comprehensive income: (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive loss, net of tax, as of December 31, 2018 $ (396,996 ) $ 4,746 $ (309,977 ) $ (702,227 ) OCI before reclassifications 23,953 4,969 (45,599 ) (16,677 ) Amounts reclassified from AOCI — (7,647 ) 9,657 2,010 Net current period other comprehensive income (loss) 23,953 (2,678 ) (35,942 ) (14,667 ) Accumulated other comprehensive loss, net of tax, as of December 31, 2019 $ (373,043 ) $ 2,068 $ (345,919 ) $ (716,894 ) (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2017 $ (297,416 ) $ (10,332 ) $ (329,734 ) $ (637,482 ) OCI before reclassifications (99,580 ) 8,011 9,717 (81,852 ) Amounts reclassified from AOCI — 7,067 10,040 17,107 Net current period other comprehensive income (loss) (99,580 ) 15,078 19,757 (64,745 ) Accumulated other comprehensive loss, net of tax, as of December 31, 2018 $ (396,996 ) $ 4,746 $ (309,977 ) $ (702,227 ) (DOLLARS IN THOUSANDS) Foreign Currency Translation Adjustments (Losses) Gains on Derivatives Qualifying as Hedges Pension and Postretirement Liability Adjustment Total Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2016 $ (352,025 ) $ 7,604 $ (335,674 ) $ (680,095 ) OCI before reclassifications 66,826 (14,782 ) (7,941 ) 44,103 Amounts reclassified from AOCI (12,217 ) (a) (3,154 ) 13,881 (1,490 ) Net current period other comprehensive income (loss) 54,609 (17,936 ) 5,940 42,613 Accumulated other comprehensive (loss) income, net of tax, as of December 31, 2017 $ (297,416 ) $ (10,332 ) $ (329,734 ) $ (637,482 )
Reclassifications of Accumulated Other Comprehensive Income to Consolidated Statement of Comprehensive Income	The following table provides details about reclassifications out of AOCI to the Consolidated Statement of Comprehensive Income: Year Ended December 31, (DOLLARS IN THOUSANDS) 2019 2018 2017 Affected Line Item in the Consolidated Statement of Comprehensive Income (Losses) gains on derivatives qualifying as hedges Foreign currency contracts $ 9,719 $ (7,089 ) $ 4,506 Cost of goods sold Interest rate swaps (857 ) (864 ) (789 ) Interest expense Tax (1,215 ) 886 (563 ) Provision for income taxes Total $ 7,647 $ (7,067 ) $ 3,154 Total, net of income taxes (Losses) gains on pension and postretirement liability adjustments Prior service cost $ 6,644 $ 7,752 $ 7,040 (a) Actuarial losses (19,032 ) (20,645 ) (24,699 ) (a) Tax 2,731 2,853 3,778 Provision for income taxes Total $ (9,657 ) $ (10,040 ) $ (13,881 ) Total, net of income taxes _______________________ (a) The amortization of prior service cost and actuarial loss is included in the computation of net periodic benefit cost. Refer to Note 16 to the Consolidated Financial Statements for additional information regarding net periodic benefit cost.

Redeemable Noncontrolling Int_2

Redeemable Noncontrolling Interests (Tables)	12 Months Ended
	Dec. 31, 2019
Noncontrolling Interest [Abstract]
Schedule of Redeemable Noncontrolling Interest	The following table sets forth the details of the Company's redeemable noncontrolling interests: (DOLLARS IN THOUSANDS) Redeemable Noncontrolling Interests Balance at December 31, 2017 $ — Acquired through acquisitions during 2018 97,510 Share of profit or loss attributable to noncontrolling interests 2,196 Redemption value mark-up for the current period 2,848 Sale of a subsidiary with redeemable noncontrolling interests (14,673 ) Exercises of redeemable noncontrolling interests (6,075 ) Balance at December 31, 2018 $ 81,806 Acquired through acquisitions during 2019 23,594 Impact of foreign exchange translation (126 ) Share of profit or loss attributable to redeemable noncontrolling interests 666 Redemption value adjustment for the current period 2,097 Measurement period adjustments 5,391 Dividends paid (753 ) Exercises of redeemable noncontrolling interests (13,632 ) Balance at December 31, 2019 $ 99,043

Nature of Operations and Summ_4

Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 29, 2018	Dec. 31, 2016
Organization And Summary Of Significant Accounting Policies [Line Items]
Receivables (included in Trade receivables)	$ 884,428	$ 946,938
Operating Lease, Right-of-Use Asset	287,870	$ 0		$ 308,300
Operating Lease, Liability	$ 291,111			313,300
Cumulative adjustment relating to the adoption of ASC 2016-16					$ (33,719)
Minimum percentage chance of tax benefit realization in final settlement	50.00%
Prior service costs from plan improvements amortization period, minimum, years	10 years
Prior service costs from plan improvements amortization period, maximum, years	20 years
Amortization period of internal and external development costs, years	7 years
Difference amount between basic and diluted net income per share (in dollars per share)	$ 0.01	$ 0.01	$ 0
Inventories	$ 1,123,068	$ 1,078,537
Machinery and equipment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, years	20 years
Minimum [Member] | Customer Relationships [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Other intangible assets amortized period, years	11 years
Minimum [Member] | Patents [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Other intangible assets amortized period, years	11 years
Minimum [Member] | Trade Names [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Other intangible assets amortized period, years	14 years
Minimum [Member] | Technological Know-how [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Other intangible assets amortized period, years	5 years
Minimum [Member] | Buildings And Improvements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, years	10 years
Minimum [Member] | Machinery and equipment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, years	3 years
Minimum [Member] | Information Technology Hardware And Software [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, years	3 years
Maximum [Member] | Customer Relationships [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Other intangible assets amortized period, years	23 years
Maximum [Member] | Patents [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Other intangible assets amortized period, years	15 years
Maximum [Member] | Trade Names [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Other intangible assets amortized period, years	28 years
Maximum [Member] | Technological Know-how [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Other intangible assets amortized period, years	28 years
Maximum [Member] | Buildings And Improvements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, years	40 years
Maximum [Member] | Information Technology Hardware And Software [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, years	7 years
Accounting Standards Update 2016-02 [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Cumulative adjustment relating to the adoption of ASC 2016-16		23,094
Accounting Standards Update 2017-12 [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Cumulative adjustment relating to the adoption of ASC 2016-16		0
Retained earnings [Member] | Accounting Standards Update 2016-02 [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Cumulative adjustment relating to the adoption of ASC 2016-16		23,094		$ 23,100
Retained earnings [Member] | Accounting Standards Update 2017-12 [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Cumulative adjustment relating to the adoption of ASC 2016-16		(981)
Trade Accounts Receivable With Factoring Agreements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Trade Receivables Held-for-sale, Amount	$ 100,000
Receivables (included in Trade receivables)	205,700	168,300	$ 160,100
Proceeds From Sale Of Accounts Receivable	37,700	13,600	15,000
Payments To Participate In Factoring Receivable Program	$ 7,100	$ 3,400	$ 3,000

Nature of Operations and Summ_5

Nature of Operations and Summary of Significant Accounting Policies - Schedule of Inventory (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Raw materials	$ 565,071	$ 568,916
Work in process	44,532	48,819
Finished goods	513,465	460,802
Total	$ 1,123,068	$ 1,078,537

Restructuring and Other Charg_3

Restructuring and Other Charges - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)FacilityPosition	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Restructuring Cost and Reserve [Line Items]
Additional charges, net	$ 29,765	$ 5,079	$ 19,711
Frutarom Integration Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Expected number of sites closed | Facility	35
Expected Number Of Sites Closed, Period	2 years
Number Of Sites Closed | Facility	10
2017 Productivity Program [Member]
Restructuring Cost and Reserve [Line Items]
Additional charges, net			24,500
Severance | Frutarom Integration Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Additional charges, net	$ 10,400
Other Restructuring Costs	65,000
Severance | 2019 Severance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Additional charges, net	21,300
Other Restructuring Costs	25,000
Severance | 2017 Productivity Program [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs			25,000
Scent [Member]
Restructuring Cost and Reserve [Line Items]
Additional charges, net	$ 11,768	3,433	13,077
Scent [Member] | Severance | 2019 Severance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Expected Number of Positions Eliminated | Position	330
Shared IT & Corporate Costs [Member]
Restructuring Cost and Reserve [Line Items]
Additional charges, net	$ 7,627	$ 0	$ 2,129
Asia [Member] | Frutarom Integration Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Number Of Sites Closed | Facility	1
EMEA [Member] | Frutarom Integration Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Number Of Sites Closed | Facility	6
Latin America [Member] | Frutarom Integration Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Number Of Sites Closed | Facility	2
North America [Member] | Frutarom Integration Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Number Of Sites Closed | Facility	1

Restructuring and Other Charg_4

Restructuring and Other Charges - Movements in Restructuring and Related Accruals (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Balance	$ 5,200	$ 7,957	$ 3,277
Additional Charges (Reversals), Net	29,765	5,079	19,711
Non-Cash Charges	(679)	(418)	(528)
Cash Payments	(13,201)	(7,418)	(14,503)
Balance	21,085	5,200	7,957
Additional charges, net	29,765	5,079	19,711
Taste [Member]
Restructuring Reserve [Roll Forward]
Additional charges, net	328	1,646	4,505
Scent [Member]
Restructuring Reserve [Roll Forward]
Additional charges, net	11,768	3,433	13,077
Frutarom Industries Ltd. [Member]
Restructuring Reserve [Roll Forward]
Additional charges, net	10,042	0
Shared IT & Corporate Costs [Member]
Restructuring Reserve [Roll Forward]
Additional charges, net	7,627	0	2,129
2015 Severance Initiatives [Member] | Severance
Restructuring Reserve [Roll Forward]
Balance		0	3,277
Additional Charges (Reversals), Net			(2,311)
Non-Cash Charges			0
Cash Payments			(966)
Balance			0
Frutarom Integration Initiative [Member] | Severance
Restructuring Reserve [Roll Forward]
Balance	0
Additional Charges (Reversals), Net	6,110
Non-Cash Charges	0
Cash Payments	(2,072)
Balance	4,038	0
Additional charges, net	10,400
Frutarom Integration Initiative [Member] | Fixed asset write down
Restructuring Reserve [Roll Forward]
Balance	0
Additional Charges (Reversals), Net	534
Non-Cash Charges	(534)
Cash Payments	0
Balance	0	0
Frutarom Integration Initiative [Member] | Other
Restructuring Reserve [Roll Forward]
Balance	0
Additional Charges (Reversals), Net	3,726
Non-Cash Charges	(145)
Cash Payments	(1,096)
Balance	2,485	0
2019 Severance Initiatives [Member] | Severance
Restructuring Reserve [Roll Forward]
Balance	0
Additional Charges (Reversals), Net	20,871
Non-Cash Charges	0
Cash Payments	(7,974)
Balance	12,897	0
Additional charges, net	21,300
2019 Severance Initiatives [Member] | Other
Restructuring Reserve [Roll Forward]
Balance	0
Additional Charges (Reversals), Net	471
Non-Cash Charges	0
Cash Payments	0
Balance	471	0
2017 Productivity Program [Member]
Restructuring Reserve [Roll Forward]
Additional charges, net			24,500
2017 Productivity Program [Member] | Severance
Restructuring Reserve [Roll Forward]
Balance	4,125	7,539	0
Additional Charges (Reversals), Net	(1,947)	3,884	20,620
Non-Cash Charges	0	0	0
Cash Payments	(1,072)	(7,298)	(13,081)
Balance	1,106	4,125	7,539
2017 Productivity Program [Member] | Other
Restructuring Reserve [Roll Forward]
Balance	1,075	418	0
Additional Charges (Reversals), Net	0	1,195	1,402
Non-Cash Charges	0	(418)	(528)
Cash Payments	(987)	(120)	(456)
Balance	$ 88	$ 1,075	$ 418

Acquisitions - Pending Transact

Acquisitions - Pending Transaction with Nutrition & Biosciences, Inc (Details)	Dec. 15, 2019USD ($)$ / shares
Nutrition & Biosciences, Inc [Member]
Business Acquisition [Line Items]
Business acquisition share price | $ / shares	$ 0.125
Cash paid to acquire business	$ 7,300,000,000
DuPont de Nemours, Inc [Member] | Nutrition & Biosciences, Inc [Member] | International Flavors & Fragrances Inc [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired	55.40%
Senior Unsecured Bridge Term Loan [Member] | Unsecured Debt [Member] | Nutrition & Biosciences, Inc [Member]
Business Acquisition [Line Items]
Debt, face amount	$ 7,500,000,000
Senior Unsecured Term Loan Facilities [Member] | Unsecured Debt [Member] | Nutrition & Biosciences, Inc [Member]
Business Acquisition [Line Items]
Debt, face amount	1,250,000,000
Three Hundred Sixty Four Day Senior Unsecured Bridge Facility [Member] | Unsecured Debt [Member] | Nutrition & Biosciences, Inc [Member]
Business Acquisition [Line Items]
Debt, face amount	$ 6,250,000,000

Acquisitions - 2019 Acquisition

Acquisitions - 2019 Acquisition Activity (Details) $ in Millions	3 Months Ended
	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)entity
Mighty and Leagel [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired		70.00%
Number of Businesses Acquired | entity		2
Cash paid to acquire business		$ 52
Contingent consideration, liability		19
Goodwill, expected tax deductible amount		56
Intangible assets acquired		$ 18
Wiburg Canada [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired	50.00%
Cash paid to acquire business	$ 37
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	3
Goodwill, expected tax deductible amount	35
Intangible assets acquired	$ 24
Frutarom Industries Ltd. [Member] | Wiburg Canada [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired	100.00%
Wiburg Canada [Member]
Business Acquisition [Line Items]
Equity Method Investments	$ 33
Minimum [Member] | Mighty and Leagel [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired		49.00%
Maximum [Member] | Mighty and Leagel [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired		60.00%

Acquisitions - Frutarom Narrati

Acquisitions - Frutarom Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018	Oct. 04, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill	$ 5,497,596		$ 5,378,388		$ 1,156,288	$ 1,000,123
Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired				100.00%
Identifiable intangible assets		$ 2,668,300		$ 2,690,000
Other assets		412,111		353,710
Redeemable noncontrolling interest		(102,902)		(97,510)
Goodwill	$ 4,346,438	4,273,957	$ 4,224,010	$ 4,243,079
Restatement Adjustment [Member] | Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Inventory		19,000
Current assets assumed		(7,400)
Identifiable intangible assets		(21,700)
Other assets		58,401
Equity method investment		10,400
Earn out payable		1,500
Deferred tax liabilities		14,400
Uncertain tax position		18,900
Environmental remediation liabilities		5,000
Redeemable noncontrolling interest		(5,392)
Goodwill		$ 30,878

Acquisitions - Schedule of asse

Acquisitions - Schedule of assets acquired and liabilities assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018	Oct. 04, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Excess attributable to Goodwill	$ 5,497,596		$ 5,378,388		$ 1,156,288	$ 1,000,123
Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		$ 140,747		$ 140,747
Other current assets		673,921		699,627
Identifiable intangible assets		2,668,300		2,690,000
Other assets		412,111		353,710
Equity method investments		36,230		25,791
Current liabilities		(318,515)		(311,325)
Debt assumed		(77,037)		(77,037)
Other liabilities		(672,218)		(632,488)
Redeemable noncontrolling interest		(102,902)		(97,510)
Noncontrolling interest		(3,700)		(3,700)
Excess attributable to Goodwill	$ 4,346,438	4,273,957	$ 4,224,010	4,243,079
Total Purchase Consideration		7,030,894		$ 7,030,894
Restatement Adjustment [Member] | Frutarom Industries Ltd. [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		0
Other current assets		(25,706)
Identifiable intangible assets		(21,700)
Other assets		58,401
Equity method investments		10,439
Current liabilities		7,190
Debt assumed		0
Other liabilities		(39,730)
Redeemable noncontrolling interest		(5,392)
Noncontrolling interest		0
Excess attributable to Goodwill		$ 30,878

Acquisitions - Schedule of inta

Acquisitions - Schedule of intangible assets acquired (Details) - Frutarom Industries Ltd. [Member] - USD ($) $ in Thousands	Oct. 04, 2018	Sep. 30, 2019	Dec. 31, 2019
Business Acquisition [Line Items]
Estimated Amounts	$ 2,668,300
Product Formula [Member]
Business Acquisition [Line Items]
Estimated Amounts	290,000
Customer Relationships [Member]
Business Acquisition [Line Items]
Estimated Amounts	2,230,000
Trademarks [Member]
Business Acquisition [Line Items]
Estimated Amounts	$ 140,000
Weighted-Average Useful Life			23 years
Above Market Leases [Member]
Business Acquisition [Line Items]
Estimated Amounts		$ 8,300
Minimum [Member] | Product Formula [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life			10 years
Minimum [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life			18 years
Minimum [Member] | Above Market Leases [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life			5 years
Maximum [Member] | Product Formula [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life			12 years
Maximum [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life			23 years
Maximum [Member] | Above Market Leases [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life			15 years

Acquisitions - Unaudited pro fo

Acquisitions - Unaudited pro forma information (Details) - Frutarom Industries Ltd. [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Unaudited pro forma net sales	$ 5,135,906	$ 4,761,115
Unaudited pro forma net income attributable to the Company	$ 474,498	$ 240,784

Acquisitions - TAA Narrative (D

Acquisitions - TAA Narrative (Details) - The Additive Advantage, LLC [Member] $ in Millions	Dec. 07, 2018USD ($)
Business Acquisition [Line Items]
Percentage of voting interest acquired	100.00%
Cash paid to acquire business	$ 14.5
Business combination, consideration transferred	6.9
Contingent consideration, liability	0.5
Identifiable intangible assets	11.4
Goodwill, expected tax deductible amount	10.4
Maximum contingent payment	$ 5.4

Acquisitions - PowderPure, Frag

Acquisitions - PowderPure, Fragrance Resources, and David Michael (Details) $ in Thousands, € in Millions	Apr. 07, 2017USD ($)	Jan. 17, 2017EUR (€)	Jan. 17, 2017USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Business Acquisition [Line Items]
Selling and administrative expenses				$ 876,121	$ 707,461	$ 570,144
Goodwill				5,497,596	$ 5,378,388	$ 1,156,288	$ 1,000,123
PowderPure [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired	100.00%
Cash paid to acquire business	$ 54,600
Cash acquired from acquisition	400
Additional contingent consideration	1,400
Purchase price exceeds preliminary fair value of net assets	48,000
Goodwill, expected tax deductible amount	15,200
Selling and administrative expenses				$ 1,300
PowderPure [Member] | Maximum [Member]
Business Acquisition [Line Items]
Earn out payable	10,000
PowderPure [Member] | Proprietary Technology [Member]
Business Acquisition [Line Items]
Intangible assets acquired	$ 27,500
Weighted-Average Useful Life	14 years
PowderPure [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Intangible assets acquired	$ 4,500
Weighted-Average Useful Life	14 years
PowderPure [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets acquired	$ 800
Weighted-Average Useful Life	2 years
Fragrance Resources [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired			100.00%
Cash paid to acquire business		€ 143.4	$ 151,900
Cash acquired from acquisition		13.7	14,400
Purchase price exceeds preliminary fair value of net assets			122,000
Business combination, consideration transferred		142	150,500
Additional payment for working capital adjustment		€ 1.4	1,500
Goodwill, not expected tax deductible amount			72,000
Accrued liabilities			$ 15,300
Fragrance Resources [Member] | Proprietary Technology [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life		5 years	5 years
Fragrance Resources [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life		2 years	2 years
Fragrance Resources [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets acquired			$ 51,700
Fragrance Resources [Member] | Customer Relationships [Member] | Minimum [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life		12 years	12 years
Fragrance Resources [Member] | Customer Relationships [Member] | Maximum [Member]
Business Acquisition [Line Items]
Weighted-Average Useful Life		16 years	16 years
Fragrance Resources [Member] | Trade Names and Proprietary Technology [Member]
Business Acquisition [Line Items]
Intangible assets acquired			$ 13,600

Property, Plant and Equipment_3

Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,690,768	$ 2,492,938
Accumulated depreciation	(1,303,848)	(1,251,786)
Property, plant and equipment, net	1,386,920	1,241,152
Depreciation expense	130,200	89,100	$ 83,400
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	73,170	75,528
Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	831,579	760,783
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,366,041	1,342,881
Information technology [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	231,858	179,876
Construction in process [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 188,120	$ 133,870

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets, Net Goodwill and Other Intangible Assets, Net - Goodwill Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Goodwill	$ 5,378,388	$ 1,156,288	$ 1,000,123
Acquisitions	98,411	4,253,541	87,865
Other			35,380
Disposals		(19,069)
Frutarom measurement period adjustment	30,876
Foreign exchange	(10,079)	(12,372)	32,920
Goodwill	5,497,596	5,378,388	$ 1,156,288
Frutarom Industries Ltd. [Member]
Goodwill [Roll Forward]
Goodwill	4,224,010
Goodwill	$ 4,346,438	$ 4,224,010

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets, Net - Schedule of Goodwill by Operating Segment (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018	Oct. 04, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill	$ 5,497,596		$ 5,378,388		$ 1,156,288	$ 1,000,123
Flavors [Member]
Goodwill [Line Items]
Goodwill	527,785		525,060
Fragrances [Member]
Goodwill [Line Items]
Goodwill	623,373		618,878
Unallocated [Member]
Goodwill [Line Items]
Goodwill	0		10,440
Frutarom Industries Ltd. [Member]
Goodwill [Line Items]
Goodwill	$ 4,346,438	$ 4,273,957	$ 4,224,010	$ 4,243,079

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets, Net Goodwill and Other Intangible Assets, Net - Hypothetical Key Assumptions (Details)	Nov. 30, 2019
Natural Product Solutions
Goodwill [Line Items]
Reporting Unit, Percentage Of Existing Headroom	8.30%
Taste [Member]
Goodwill [Line Items]
Reporting Unit, Percentage Of Existing Headroom	7.50%
Measurement Input, Discount Rate [Member] | Natural Product Solutions
Goodwill [Line Items]
Sensitivity Analysis of Fair Value, Goodwill Impairment Test, Impact of 50 Basis Points Increase Of Measurement Input Assumption To Resulting Headroom	(0.30%)
Measurement Input, Discount Rate [Member] | Taste [Member]
Goodwill [Line Items]
Sensitivity Analysis of Fair Value, Goodwill Impairment Test, Impact of 50 Basis Points Increase Of Measurement Input Assumption To Resulting Headroom	(0.90%)
Measurement Input, Terminal Growth [Member] | Natural Product Solutions
Goodwill [Line Items]
Sensitivity Analysis of Fair Value, Goodwill Impairment Test, Impact of 50 Basis Points Decrease Of Measurement Input Assumption To Resulting Headroom	(3.40%)
Measurement Input, Terminal Growth [Member] | Taste [Member]
Goodwill [Line Items]
Sensitivity Analysis of Fair Value, Goodwill Impairment Test, Impact of 50 Basis Points Decrease Of Measurement Input Assumption To Resulting Headroom	(3.60%)
Valuation, Income Approach [Member] | Measurement Input, Discount Rate [Member] | Natural Product Solutions
Goodwill [Line Items]
Alternative Investment, Measurement Input	0.075
Valuation, Income Approach [Member] | Measurement Input, Discount Rate [Member] | Taste [Member]
Goodwill [Line Items]
Alternative Investment, Measurement Input	0.075
Valuation, Income Approach [Member] | Measurement Input, Terminal Growth [Member] | Natural Product Solutions
Goodwill [Line Items]
Alternative Investment, Measurement Input	0.030
Valuation, Income Approach [Member] | Measurement Input, Terminal Growth [Member] | Taste [Member]
Goodwill [Line Items]
Alternative Investment, Measurement Input	0.030

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets, Net - Trademark and Other Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	$ 3,341,032	$ 3,331,211
Total accumulated amortization	(489,097)	(291,889)
Other intangible assets, net	2,851,935	3,039,322
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	2,653,446	2,658,659
Total accumulated amortization	(302,047)	(156,906)
Trade Names and Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	178,968	177,770
Total accumulated amortization	(27,213)	(19,593)
Technological Know-how [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	468,256	451,016
Total accumulated amortization	(135,269)	(93,051)
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	40,362	43,766
Total accumulated amortization	$ (24,568)	$ (22,339)

Goodwill and Other Intangible_7

Goodwill and Other Intangible Assets, Net - Amortization Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquisition-related intangibles	$ 193,097	$ 75,879	$ 34,693
Estimated annual amortization, 2019	189,896
Estimated annual amortization, 2020	185,510
Estimated annual amortization, 2021	181,698
Estimated annual amortization, 2022	181,586
Estimated annual amortization, 2023	$ 181,586

Goodwill and Other Intangible_8

Goodwill and Other Intangible Assets, Net Goodwill and Other Intangible Assets, Net - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Nov. 30, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill	$ 5,497,596		$ 5,378,388	$ 1,156,288	$ 1,000,123
IFF Legacy Reporting Units
Goodwill [Line Items]
Reporting unit in excess of carrying amount		200.00%
Lucas Meyers Cosmetics
Goodwill [Line Items]
Reporting unit in excess of carrying amount		80.00%
Minimum [Member] | Frutarom Reporting Units
Goodwill [Line Items]
Reporting unit in excess of carrying amount		10.00%
Maximum [Member] | Frutarom Reporting Units
Goodwill [Line Items]
Reporting unit in excess of carrying amount		55.00%

Other Assets And Liabilities,_3

Other Assets And Liabilities, Current and Noncurrent - Schedule of Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 29, 2018
Other Assets [Abstract]
Value Added Tax Receivable, Current	$ 78,526	$ 62,475
Income Taxes Receivable, Current	69,284	60,139
Prepaid Expense, Current	110,768	90,962
Receivables, Net, Current	60,756	63,460
Other Assets, Current	319,334	277,036
Operating lease right-of-use assets	287,870	0	$ 308,300
Finance lease right-of-use assets	4,792	0
Deferred income taxes	125,552	89,000
Overfunded pension plans	85,657	75,158
Cash surrender value of life insurance contracts	47,578	43,179
Other	56,967	81,336
Total	$ 608,416	$ 288,673

Other Assets And Liabilities,_4

Other Assets And Liabilities, Current and Noncurrent - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Employee-related Liabilities, Current	$ 102,704	$ 121,080
Rebates and Incentives Payable, Current	49,938	44,175
Sales and Excise Tax Payable, Current	20,729	23,253
Interest Payable, Current	32,417	36,823
Liability, Pension and Other Postretirement and Postemployment Benefits, Current	11,972	11,528
Accrued Insurance, Current	9,960	9,447
Earn Out Liabilities, Other	12,961	29,974
Restructuring Reserve	21,085	5,200	$ 7,957	$ 3,277
Operating Lease, Liability, Current	37,744	0
Finance Lease, Liability, Current	1,931	0
Accrued Income Taxes, Current	42,141	24,356
Other Sundry Liabilities, Current	233,240	224,672
Other current liabilities	$ 576,822	$ 530,508

Debt - Components of Debt (Deta

Debt - Components of Debt (Detail) $ in Thousands, € in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 25, 2018EUR (€)	Sep. 25, 2018USD ($)
Debt Instrument [Line Items]
Total debt	$ 4,382,396	$ 4,553,059
Less: Short term borrowings	(384,958)	(48,642)
Long-term debt	$ 3,997,438	4,504,417
Senior Notes - 2007 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Effective Interest Rate	6.40%
Senior Notes - 2007 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Effective Interest Rate	6.82%
Senior Notes - 2020 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	3.69%
Senior notes	$ 299,381	298,499
Senior Notes, Euro Notes, 2021 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	0.82%		0.50%	0.50%
Senior notes	$ 334,561	337,704	€ 300
Total debt			€ 297.7	$ 349,500
Senior Notes - 2023 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	3.30%
Senior notes	$ 299,004	298,698
Senior Notes, Euro Notes, 2024 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	1.88%
Senior notes	$ 558,124	564,034
Senior Notes, Euro Notes, 2026 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	1.93%		1.80%	1.80%
Senior notes	$ 890,183	899,886	€ 800
Total debt			€ 794.1	$ 932,200
Senior Notes - 2028 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	4.57%
Senior notes	$ 396,688	396,377
Senior notes - 2047 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	4.44%
Senior notes	$ 493,571	493,151
Senior Notes - 2048 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	5.12%
Senior notes	$ 785,996	785,788
Amortizing Note
Debt Instrument [Line Items]
Effective Interest Rate	6.09%
Senior notes	$ 82,079	125,007
Bank overdrafts and other [Member]
Debt Instrument [Line Items]
Bank overdrafts and other	3,131	4,695
Deferred realized gains on interest rate swaps [Member]
Debt Instrument [Line Items]
Deferred realized gains on interest rate swaps	$ 57	57
Term Loan Credit Agreement [Member] | Loans Payable [Member]
Debt Instrument [Line Items]
Effective Interest Rate	3.65%
Senior notes	$ 239,621	$ 349,163
London Interbank Offered Rate (LIBOR) [Member] | Revolver Borrowings [Member]
Debt Instrument [Line Items]
Effective Interest Rate	1.125%

Tangible Equity Units (Details)

Tangible Equity Units (Details)	Sep. 17, 2018USD ($)$ / sharesshares
Equity [Abstract]
Tangible equity units issued | shares	16,500,000
Stated rate	6.00%
Price per unit	$ 50
Tangible equity units proceeds | $	$ 800,200,000
Less: Issuance costs | $	24,800,000
Fair Value per TEU | $	$ 50
Quarterly installments	$ 0.75
Initial installment	$ 0.73333
Interest and partial repayment of principal	3.79%
Price for basic share (in dollars per share)	$ 0.3134

Debt - Additional Information (

Debt - Additional Information (Detail)	Oct. 04, 2018USD ($)	Sep. 17, 2018USD ($)$ / shares	Jun. 06, 2018USD ($)	May 18, 2017USD ($)	Mar. 14, 2016EUR (€)	Mar. 14, 2016USD ($)	Apr. 04, 2013USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 26, 2018USD ($)	Sep. 25, 2018EUR (€)	Sep. 25, 2018USD ($)	Jun. 06, 2018EUR (€)	Jun. 06, 2018USD ($)	Mar. 14, 2016USD ($)
Schedule Of Borrowings [Line Items]
Amount still available for additional borrowings								$ 1,000,000,000			$ 1,000,000,000
Debt								4,382,396,000			$ 4,382,396,000	$ 4,553,059,000
Gross Proceeds		$ 825,000,000
Quarterly installments | $ / shares		$ 0.75
Initial installment | $ / shares		$ 0.73333
Interest and partial repayment of principal		3.79%
Gain (loss) on pre-issuance hedges						$ (3,200,000)
Repurchase price of principal amount of Senior Notes in percentage											101.00%
Commercial Paper [Member]
Schedule Of Borrowings [Line Items]
Short term debt, term											90 days
Short-term debt								0			$ 0	0
Maximum amount outstanding												85,000,000
Loans Payable [Member] | Term Loan Credit Agreement [Member]
Schedule Of Borrowings [Line Items]
Debt, face amount																	$ 350,000,000
Debt Instrument, Term			3 years
Amortization rate			10.00%
Maximum ratio of net debt to EBI TDA with step-downs over time			4.50
Repayments of Debt								43,000,000	$ 42,000,000	$ 25,000,000
Senior notes								$ 239,621,000			$ 239,621,000	349,163,000
Interest rate of debt								3.65%			3.65%
Senior notes - 2017 [Member]
Schedule Of Borrowings [Line Items]
Debt, face amount				$ 500,000,000
Debt Instrument, Term				30 years
Interest rate of debt				4.375%
Senior notes discount				$ 1,800,000
Proceeds related to the issuance of Senior Notes				493,900,000
Underwriting discount				4,400,000
Other deferred costs				900,000
Gain (loss) on pre-issuance hedges				$ (5,300,000)
Senior Notes - 2016 [Member]
Schedule Of Borrowings [Line Items]
Debt, face amount | €					€ 500,000,000
Debt Instrument, Term					8 years	8 years
Interest rate of debt					1.75%													1.75%
Senior notes discount | €					€ 900,000
Proceeds related to the issuance of Senior Notes | €					496,000,000
Underwriting discount | €					€ 3,100,000
Other deferred costs																		$ 1,300,000
Senior Notes - 2007 [Member] | Minimum [Member]
Schedule Of Borrowings [Line Items]
Interest rate of debt								6.40%			6.40%
Senior Notes - 2007 [Member] | Maximum [Member]
Schedule Of Borrowings [Line Items]
Interest rate of debt								6.82%			6.82%
Senior Notes - 2013 [Member]
Schedule Of Borrowings [Line Items]
Interest rate of debt							3.20%
Senior notes discount							$ 300,000
Proceeds related to the issuance of Senior Notes							297,800,000
Underwriting discount							1,900,000
Senior notes							300,000,000
Other deferred financing costs							$ 900,000
Senior Notes, Euro Notes, 2021 [Member]
Schedule Of Borrowings [Line Items]
Senior notes								$ 334,561,000			$ 334,561,000	337,704,000		€ 300,000,000
Interest rate of debt								0.82%			0.82%			0.50%	0.50%
Debt														€ 297,700,000	$ 349,500,000
Senior Notes, Euro Notes, 2026 [Member]
Schedule Of Borrowings [Line Items]
Senior notes								$ 890,183,000			$ 890,183,000	899,886,000		€ 800,000,000
Interest rate of debt								1.93%			1.93%			1.80%	1.80%
Debt														€ 794,100,000	$ 932,200,000
London Interbank Offered Rate (LIBOR) [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate											1.125%
London Interbank Offered Rate (LIBOR) [Member] | Loans Payable [Member] | Term Loan Credit Agreement [Member] | Minimum [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate			0.75%
London Interbank Offered Rate (LIBOR) [Member] | Loans Payable [Member] | Term Loan Credit Agreement [Member] | Maximum [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate			2.00%
Base Rate [Member] | Loans Payable [Member] | Term Loan Credit Agreement [Member] | Minimum [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate			0.00%
Base Rate [Member] | Loans Payable [Member] | Term Loan Credit Agreement [Member] | Maximum [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate			1.00%
Citibank, N.A [Member] | Tranche A Revolving Credit Facility [Member]
Schedule Of Borrowings [Line Items]
Revolving credit facility																	585,000,000
Line of credit facility, maximum borrowing capacity, sublimit																	25,000,000
Citibank, N.A [Member] | Tranche B Revolving Credit Facility [Member]
Schedule Of Borrowings [Line Items]
Revolving credit facility																	415,000,000
Line of credit facility, maximum borrowing capacity, sublimit																€ 50,000,000	$ 25,000,000
Citibank, N.A [Member] | Revolving Loan Facility [Member]
Schedule Of Borrowings [Line Items]
Debt related commitment fees and debt issuance costs			$ 700,000
Line of credit								$ 0			$ 0
Citibank, N.A [Member] | London Interbank Offered Rate (LIBOR) [Member] | Revolving Loan Facility [Member] | Minimum [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate			0.75%
Citibank, N.A [Member] | London Interbank Offered Rate (LIBOR) [Member] | Revolving Loan Facility [Member] | Maximum [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate			1.75%
Citibank, N.A [Member] | Base Rate [Member] | Revolving Loan Facility [Member] | Minimum [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate			0.00%
Citibank, N.A [Member] | Base Rate [Member] | Revolving Loan Facility [Member] | Maximum [Member]
Schedule Of Borrowings [Line Items]
Margin on variable rate			0.75%
Carrying Amount [Member] | Senior Notes - 2020 [Member]
Schedule Of Borrowings [Line Items]
Senior notes								299,381,000			299,381,000	298,499,000
Carrying Amount [Member] | Senior Notes - 2020 [Member] | Unsecured Debt [Member]
Schedule Of Borrowings [Line Items]
Senior notes													$ 300,000,000
Interest rate of debt													3.40%
Debt													$ 298,900,000
Carrying Amount [Member] | Senior Notes - 2028 [Member]
Schedule Of Borrowings [Line Items]
Senior notes								396,688,000			396,688,000	396,377,000	$ 400,000,000
Interest rate of debt													4.45%
Debt													$ 397,000,000
Carrying Amount [Member] | Senior Notes - 2048 [Member]
Schedule Of Borrowings [Line Items]
Senior notes								$ 785,996,000			$ 785,996,000	$ 785,788,000	$ 800,000,000
Interest rate of debt													5.00%
Debt													$ 787,200,000
Amortizing Note
Schedule Of Borrowings [Line Items]
Gross Proceeds		$ 139,500,000
Amortizing Note | Frutarom Industries Ltd. [Member]
Schedule Of Borrowings [Line Items]
Gross Proceeds	$ 139,500,000

Tangible Equity Units (Allocati

Tangible Equity Units (Allocation of TEU) (Details)	Sep. 17, 2018USD ($)
Tangible Equity Units [Line Items]
Fair Value per TEU	$ 50
Gross Proceeds	825,000,000
Less: Issuance costs	24,800,000
Net Proceeds	800,200,000
SPC
Tangible Equity Units [Line Items]
Fair Value per TEU	41.5
Gross Proceeds	685,500,000
Less: Issuance costs	20,400,000
Net Proceeds	665,100,000
Amortizing Note
Tangible Equity Units [Line Items]
Fair Value per TEU	8.45
Gross Proceeds	139,500,000
Less: Issuance costs	4,400,000
Net Proceeds	$ 135,100,000

Debt - Schedule of Debt Maturit

Debt - Schedule of Debt Maturities (Details) $ in Thousands	Dec. 31, 2019USD ($)
Debt Instrument [Line Items]
Total	$ 4,417,353
Less than 1 Year	382,001
1-3 Years	2,596,960
3-5 Years	577,792
More than 5 Years	860,600
Senior Notes - 2020 [Member]
Debt Instrument [Line Items]
Total	300,000
Less than 1 Year	300,000
1-3 Years	0
3-5 Years	0
More than 5 Years	0
Senior Notes, Euro Notes, 2021 [Member]
Debt Instrument [Line Items]
Total	336,360
Less than 1 Year	0
1-3 Years	0
3-5 Years	336,360
More than 5 Years	0
Senior Notes - 2023 [Member]
Debt Instrument [Line Items]
Total	300,000
Less than 1 Year	0
1-3 Years	0
3-5 Years	0
More than 5 Years	300,000
Senior Notes, Euro Notes, 2024 [Member]
Debt Instrument [Line Items]
Total	560,600
Less than 1 Year	0
1-3 Years	0
3-5 Years	0
More than 5 Years	560,600
Senior Notes, Euro Notes, 2026 [Member]
Debt Instrument [Line Items]
Total	896,960
Less than 1 Year	0
1-3 Years	896,960
3-5 Years	0
More than 5 Years	0
Senior Notes - 2028 [Member]
Debt Instrument [Line Items]
Total	400,000
Less than 1 Year	0
1-3 Years	400,000
3-5 Years	0
More than 5 Years	0
Senior notes - 2047 [Member]
Debt Instrument [Line Items]
Total	500,000
Less than 1 Year	0
1-3 Years	500,000
3-5 Years	0
More than 5 Years	0
Senior Notes - 2048 [Member]
Debt Instrument [Line Items]
Total	800,000
Less than 1 Year	0
1-3 Years	800,000
3-5 Years	0
More than 5 Years	0
Term Loan Credit Agreement [Member]
Debt Instrument [Line Items]
Total	240,000
Less than 1 Year	35,000
1-3 Years	0
3-5 Years	205,000
More than 5 Years	0
Amortizing Note
Debt Instrument [Line Items]
Total	83,433
Less than 1 Year	47,001
1-3 Years	0
3-5 Years	36,432
More than 5 Years	$ 0

Tangible Equity Units Tangible

Tangible Equity Units Tangible Equity - Settlement of Shares (Details)	Dec. 31, 2019$ / shares
Condition One [Member]
Class of Stock [Line Items]
Share Price	$ 159.54
Tangible Equity Rate, Settlement Rate	0.3134
Condition Two [Member]
Class of Stock [Line Items]
Tangible Equity Units, Conditional Value	50
Condition Three [Member]
Class of Stock [Line Items]
Share Price	130.25
Tangible Equity Rate, Settlement Rate	0.3839
Minimum [Member] | Condition Two [Member]
Class of Stock [Line Items]
Share Price	130.25
Maximum [Member] | Condition Two [Member]
Class of Stock [Line Items]
Share Price	$ 159.54

Income Taxes - Schedule of Earn

Income Taxes - Schedule of Earnings before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
U.S. loss before taxes	$ (110,363)	$ (99,125)	$ (24)
Foreign income before taxes	667,815	546,882	537,069
Income before taxes	$ 557,452	$ 447,757	$ 537,045

Leases (Details)

Leases (Details)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Remaining term lease	40 years
Renewal term	5 years

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current tax provision
Federal	$ 9,979	$ (11,568)	$ 68,886
State and local	429	1,709	137
Foreign	146,055	98,433	113,468
Total current income tax provision	156,463	88,574	182,491
Deferred tax provision
Federal	(41,126)	(8,287)	74,446
State and local	7,598	(7,092)	(11,537)
Foreign	(25,751)	34,781	(4,020)
Total deferred income tax provision	(59,279)	19,402	58,889
Total taxes on income	$ 97,184	$ 107,976	$ 241,380

Leases - Schedule of Lease Expe

Leases - Schedule of Lease Expense (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Leases [Abstract]
Operating lease cost	$ 52,213
Financing lease cost	$ 2,235

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Effective Income Tax Rate (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Statutory tax rate	21.00%	21.00%	35.00%
Difference in effective tax rate on foreign earnings and remittances	(6.80%)	(6.10%)	(12.60%)
Tax benefit from supply chain optimization	(1.00%)	(3.00%)	(2.30%)
Unrecognized tax benefit, net of reversals	3.40%	2.90%	2.30%
U.S. tax reform	0	(0.018)	0.265
Deferred taxes on deemed repatriation	0.80%	10.10%	0.30%
Global intangible low-taxed income	0.00%	1.80%	0.00%
Acquisition costs	0.50%	1.30%	0.00%
Establishment (release) of valuation allowance on state deferred	1.70%	(1.50%)	(1.70%)
State and local taxes	(0.80%)	0.60%	0.10%
Other, net	(1.40%)	(1.20%)	(2.70%)
Effective tax rate	17.40%	24.10%	44.90%

Leases - Schedule of Rental Exp

Leases - Schedule of Rental Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Leases [Abstract]
Operating Leases, Rent Expense, Net	$ 42,365	$ 37,785

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation between U.S. Federal Statutory Income Tax Rate to Actual Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Statutory tax rate	21.00%	21.00%	35.00%
Release of valuation allowance on state deferred	0.80%	10.10%	0.30%
State and local taxes	(0.80%)	0.60%	0.10%
Other, net	(1.40%)	(1.20%)	(2.70%)
Effective tax rate	17.40%	24.10%	44.90%

Leases Cash Flow (Details)

Leases Cash Flow (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Leases [Abstract]
Operating cash flow from operating activities	$ 51,444
Operating cash flow from finance leases	64
Financing cash flow from finance leases	2,204
Operating Leases, Additions	29,823
Finance Leases, Additions	$ 2,833

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2019
Income Taxes [Line Items]
Global Intangible Low-Taxed Income Expense	$ 100
U.S. federal tax rate	21.00%	21.00%	35.00%
Deferred tax assets realized	$ 75,900
Tax reform, benefit recorded	9,700
Valuation allowance	203,765	$ 200,280
Operating loss carryforwards	220,156	225,152
Deferred tax asset	226,400
Valuation allowance for net operating loss carryforwards	190,600
Reduction in accrual for interest and penalties	11,000	1,100	$ 3,000
Accrued interest and penalties	14,000	3,000	2,800
Unrecognized tax benefits, including interest	88,800
Tax benefits credited to Shareholders' equity		100	100
Tax Credit Carryforward, Valuation Allowance	14,100
Deferred Tax Liabilities, Deemed Repatriation	46,066	88,759
Other liabilities [Member]
Income Taxes [Line Items]
Unrecognized tax benefits that would impact effective tax rate	73,600	47,300	28,500
Other Current Liabilities [Member]
Income Taxes [Line Items]
Unrecognized tax benefits that would impact effective tax rate	1,200	3,600	$ 9,700
2018 to 2037 [Member]
Income Taxes [Line Items]
Operating loss carryforwards	207,900	209,400
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration		12,300
Tax credit carryforwards	18,500	$ 17,800
Indefinite [Member]
Income Taxes [Line Items]
Operating loss carryforwards	195,600
Other Liabilities [Member]
Income Taxes [Line Items]
Accrued interest and penalties	1,300
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Valuation allowance	13,500
Frutarom Industries Ltd. [Member]
Income Taxes [Line Items]
Unrecognized tax benefits that would impact effective tax rate				$ 13,800
Accrued interest and penalties	7,800			6,600
Unrecognized tax benefits, including interest	33,700			$ 20,400
Deferred tax liability adjustment	43,700
Frutarom Industries Ltd. [Member] | Other liabilities [Member]
Income Taxes [Line Items]
Unrecognized tax benefits that would impact effective tax rate	24,700
Frutarom Industries Ltd. [Member] | Other Current Liabilities [Member]
Income Taxes [Line Items]
Unrecognized tax benefits that would impact effective tax rate	$ 1,200

Leases - Balance Sheet (Details

Leases - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 29, 2018
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 287,870	$ 0	$ 308,300
Operating Lease, Liability, Current	37,744	0
Operating Lease, Liability, Noncurrent	253,367
Operating Lease, Liability	291,111		$ 313,300
Finance Lease, Right-of-Use Asset	4,792	0
Finance Lease, Liability, Current	1,931	$ 0
Finance Lease, Liability, Noncurrent	2,525
Finance Lease, Liability	$ 4,456

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Employee and retiree benefits	$ 87,924	$ 80,382
Credit and net operating loss carryforwards	220,156	225,152
Intangible assets	8,477	12,489
Deferred Tax Assets, in Process Research and Development	15,477	481
Gain on foreign currency translation	3,285	0
Interest limitation	39,867	19,380
Inventory	14,396	13,308
Deferred Tax Asset Lease Obligations	53,751	0
Other, net	14,351	17,528
Gross deferred tax assets	457,684	368,720
Property, plant and equipment, net	(49,158)	(22,511)
Intangible assets	(621,044)	(616,333)
Deferred Tax Liabilities, Right of Use Assets	(53,555)	0
Loss on foreign currency translation	0	(7,717)
Deferred taxes on deemed repatriation	(46,066)	(88,759)
Gross deferred tax liabilities	(769,823)	(735,320)
Valuation allowance	(203,765)	(200,280)
Total net deferred tax liabilities	$ (515,904)	$ (566,880)

Leases - Weighted Average (Deta

Leases - Weighted Average (Details)	Dec. 31, 2019
Leases [Abstract]
Operating lease weighted average remaining lease term	11 years 3 months 18 days
Finance lease weighted average remaining lease term	3 years 3 months 18 days
Operating lease weighted average discount rate	3.89%
Finance lease weighted average discount rate	1.69%

Income Taxes - Reconciliation_2

Income Taxes - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance of unrecognized tax benefits at beginning of year	$ 50,953	$ 38,162	$ 26,428
Gross amount of increases in unrecognized tax benefits as a result of positions taken during a prior year	20,361	9,751	1,169
Gross amount of decreases in unrecognized tax benefits as a result of positions taken during a prior year	(2,241)	(5,362)	(268)
Gross amount of increases in unrecognized tax benefits as a result of positions taken during the current year	13,274	14,677	13,191
The amounts of decreases in unrecognized benefits relating to settlements with taxing authorities	(3,575)	(4,550)	0
Reduction in unrecognized tax benefits due to the lapse of applicable statute of limitation	(3,973)	(1,725)	(2,358)
Balance of unrecognized tax benefits at end of year	$ 74,799	$ 50,953	$ 38,162

Leases - Schedule of Lease Matu

Leases - Schedule of Lease Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 29, 2018
Leases [Abstract]
Operating lease, less than 1 year	$ 49,199
Operating lease, 1-3 years	81,829
Operating lease, 3-5 years	60,489
Operating lease, After 5 years	178,231
Less Imputed Interest	(78,637)
Operating Lease, Liability	291,111	$ 313,300
Financing lease, less than 1 year	2,036
Financing lease, 1-3 years	2,073
Financing lease, 3-5 years	486
Financing lease, After 5 years	26
Less Imputed Interest	(165)
Finance Lease, Liability	$ 4,456

Leases - Maturities Prior to Ad

Leases - Maturities Prior to Adoption (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 49,350
2020	42,156
2021	36,445
2022	32,174
2023	28,499
Thereafter	201,078
Total	$ 389,700

Leases - Leases By Region (Deta

Leases - Leases By Region (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 29, 2018
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 287,870	$ 0	$ 308,300
Finance Lease, Right-of-Use Asset	4,792	$ 0
North America [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	143,556
Finance Lease, Right-of-Use Asset	246
EMEA [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	110,552
Finance Lease, Right-of-Use Asset	3,221
Asia [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	20,492
Finance Lease, Right-of-Use Asset	516
Latin America [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	13,270
Finance Lease, Right-of-Use Asset	$ 809

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue	$ 5,140,084	$ 3,977,539	$ 3,398,719
Flavors [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,850,498	1,990,985	1,632,166
Fragrances [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,543,834	1,496,493	1,424,612
Fragrance Ingredients [Member]
Disaggregation of Revenue [Line Items]
Revenue	745,752	490,061	341,941
EMEA [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,081,758	1,396,316	1,065,596
Asia [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,162,992	991,015	903,546
North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,170,497	1,010,126	901,821
Latin America [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 724,837	$ 580,082	$ 527,756

Revenue Recognition Contract As

Revenue Recognition Contract Asset and Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Receivables (included in Trade receivables)	$ 884,428	$ 946,938
Contract asset - Short term	2,736	487
Contract liabilities - Short term	$ 11,107	$ 1,006

Net Income Per Share - Reconcil

Net Income Per Share - Reconciliation of Shares Used in Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net Income
Net income available to IFF stockholders	$ 455,873	$ 337,302	$ 295,665
Less: Increase in redemption value of redeemable noncontrolling interests in excess of earnings allocated	(2,097)	(2,848)	0
Net income available to IFF stockholders	$ 453,776	$ 334,454	$ 295,665
Shares
Average number of shares outstanding - basic (in shares)	111,966	87,551	79,070
Average number of shares outstanding - diluted (in shares)	113,307	88,121	79,370
Net Income per Share
Net income per share - basic (in dollars per share)	$ 4.05	$ 3.81	$ 3.73
Net income per share - diluted (in dollars per share)	$ 4	$ 3.79	$ 3.72
Employee Stock Option And Restricted Stock [Member]
Shares
Adjustment for assumed dilution (in shares)	356	303	300
SPC
Shares
Adjustment for assumed dilution (in shares)	985	267	0

Net Income Per Share - Addition

Net Income Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Difference amount between basic and diluted net income per share (in dollars per share)	$ 0.01	$ 0.01	$ 0
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income	$ 1	$ 1	$ 1

Net Income Per Share - TEU (Det

Net Income Per Share - TEU (Details) - USD ($) $ / shares in Units, $ in Millions	Sep. 17, 2018	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Tangible equity units issued	16,500,000
Tangible equity units proceeds	$ 800.2
Price for basic share (in dollars per share)	$ 0.3134
Price for diluted share (usd per share)		$ 0.3839	$ 0.3711

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Nov. 01, 2017	Oct. 31, 2017	Aug. 31, 2015	Dec. 31, 2012
Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 2.96	$ 2.84	$ 2.66
Dividends payable	$ 80,038,000	$ 77,779,000	$ 54,400,000
Dividend per share declared (in dollars per share)	$ 0.75	$ 0.73	$ 0.69
Shares authorized under repurchase program							$ 250,000,000
Additional authorized amount				$ 250,000,000		$ 250,000,000
Remaining authorized amended repurchase amount					$ 56,100,000
Remaining authorized repurchase amount	$ 279,700,000			$ 300,000,000
Remaining number of shares authorized to be repurchase	2,213,425
Stock repurchased during period as percentage of shares outstanding	2.00%

Shareholders' Equity - Stock Re

Shareholders' Equity - Stock Repurchase Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2017
Equity [Abstract]
Shares Repurchased (in shares)	108,109	459,264
Weighted- Average Price per Share (in dollars per share)	$ 143.15	$ 126.44
Dollar Amount Repurchased	$ 15,475	$ 58,069

Stock Compensation Plans - Addi

Stock Compensation Plans - Additional Information (Detail) - shares	1 Months Ended			12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2016	Dec. 31, 2019
2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (in shares)				1,500,000
Shares remaining available for issuance (in shares)				1,552,694
Shares subject to outstanding awards (in shares)				928,326
Shares remaining available for future awards (in shares)				1,461,768
Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, in years				3 years
Target payout percentage, cash				50.00%
Target payout percentage, stock				50.00%
2008-2010 Cycle (Cycle VIII) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target dollar value of the award converted to a number of notional shares				50.00%
2010-2012 Cycle [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, shares (in shares)		25,394	46,091
2014-2016 Cycle [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, shares (in shares)	14,579
RSU's [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, in years				3 years
Each twelve-month period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				25.00%
Full three-year period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				25.00%

Stock Compensation Plans - Stoc

Stock Compensation Plans - Stock-Based Compensation Expense Included in Consolidated Statement of Income and Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 38,610	$ 31,918	$ 32,581
Less tax benefit	(7,305)	(6,556)	(5,659)
Total stock-based compensation, net of tax	31,305	25,362	26,922
Equity-based awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	34,482	29,401	26,567
Liability-based awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 4,128	$ 2,517	$ 6,014

Stock Compensation Plans - SSAR

Stock Compensation Plans - SSAR's and Stock Option - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options/SSAR's exercised	$ 0.2	$ 0.1	$ 1.2
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, granted	0	0	0
SSAR's [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term, in years	7 years
Shares granted (in shares)		0	0
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted	$ 0.3
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted, weighted average period, in years	1 year 9 months 18 days
SSAR's and Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average exercise price, exercisable (USD per share)	$ 118.10	$ 64.96	$ 60.39

Stock Compensation Plans - SS_2

Stock Compensation Plans - SSAR's and Stock Option Activity (Detail) - SSAR's and Stock Options [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Shares Subject to SSARs/Options
Beginning balance (in shares)	12
Granted (in shares)	6
Exercised (in shares)	(3)
Cancelled (in shares)	0
Ending balance (in shares)	15	12
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 117.21
Granted (in dollars per share)	137.82
Exercised (in dollars per share)	60.39
Cancelled (in dollars per share)	0
Ending balance (in dollars per share)	$ 138.73	$ 117.21
SSARs/ Options Exercisable (in shares)	1	4

Stock Compensation Plans - SS_3

Stock Compensation Plans - SSAR's and Stock Option Outstanding (Detail) - SSAR's and Stock Options [Member] - Over $115 [Member] $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Price Range, upper limit	$ 115
Number Outstanding (in shares) | shares	15
Weighted Average Remaining Contractual Life (in years)	5 years 8 months 4 days
Weighted Average Exercise Price (in dollars per share)	$ 138.73
Aggregate Intrinsic Value | $	$ 0

Stock Compensation Plans - SS_4

Stock Compensation Plans - SSAR's and Stock Option Exercisable (Detail) - SSAR's and Stock Options [Member] - Over $115 [Member] $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable options, upper range limit	$ 115
Number Exercisable (in shares) | shares	1
Weighted Average Remaining Contractual Life (in years)	2 years 4 months 2 days
Weighted Average Exercise Price (in dollars per share)	$ 118.10
Aggregate Intrinsic Value | $	$ 2

Stock Compensation Plans - Rest

Stock Compensation Plans - Restricted Stock Units Plan - Additional Information (Detail) - RSU's [Member] $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	100.00%
Vesting period, in years	3 years
Total fair value of vested	$ 22.4
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted	$ 27.8
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted, weighted average period, in years	1 year 9 months 18 days

Stock Compensation Plans - RSU,

Stock Compensation Plans - RSU, PRS and Cash RSU Activity (Detail) shares in Thousands	12 Months Ended
	Dec. 31, 2019$ / sharesshares
RSU's [Member]
Number of Shares
Beginning balance (in shares) | shares	448
Granted (in shares) | shares	230
Vested (in shares) | shares	(164)
Forfeited (in shares) | shares	(17)
Ending balance (in shares) | shares	497
Weighted Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share) | $ / shares	$ 125.99
Granted (in dollars per share) | $ / shares	128.98
Vested (in dollars per share) | $ / shares	116.80
Forfeited (in dollars per share) | $ / shares	130.85
Ending balance (in dollars per share) | $ / shares	$ 130.24
Restricted Stock [Member]
Number of Shares
Beginning balance (in shares) | shares	162
Granted (in shares) | shares	62
Vested (in shares) | shares	(54)
Forfeited (in shares) | shares	(2)
Ending balance (in shares) | shares	168
Weighted Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share) | $ / shares	$ 132.96
Granted (in dollars per share) | $ / shares	137.82
Vested (in dollars per share) | $ / shares	119.81
Forfeited (in dollars per share) | $ / shares	138.97
Ending balance (in dollars per share) | $ / shares	$ 138.96
Cash RSU's [Member]
Number of Shares
Beginning balance (in shares) | shares	92
Granted (in shares) | shares	37
Vested (in shares) | shares	(32)
Forfeited (in shares) | shares	(2)
Ending balance (in shares) | shares	95
Weighted Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share) | $ / shares	$ 132.23
Granted (in dollars per share) | $ / shares	126.35
Vested (in dollars per share) | $ / shares	134.68
Forfeited (in dollars per share) | $ / shares	132.32
Ending balance (in dollars per share) | $ / shares	$ 126.35

Stock Compensation Plans - Purc

Stock Compensation Plans - Purchased Restricted Stock Plan - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
PRSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issued Shares (in shares)	61,991	66,674	41,801
Aggregate Purchase Price	$ 8.5	$ 9.3	$ 5.8
Total fair value of vested	$ 22.4
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Covered Shares (in shares)	30,996	33,337	20,901
Total fair value of vested	$ 7.1
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted	$ 10.7
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted, weighted average period, in years	1 year 9 months 18 days

Stock Compensation Plans - Liab

Stock Compensation Plans - Liability Awards - Additional Information (Detail) - Cash RSU's [Member] $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage granted in cash to eligible employees	100.00%
Vesting percentage	100.00%
Vesting period, in years	3 years
Total fair value of vested	$ 4.4
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted	$ 5.2
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted, weighted average period, in years	1 year 9 months 18 days

Segment Information - Additiona

Segment Information - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)segmentcategoryCustomer	Dec. 31, 2018USD ($)Customer	Dec. 31, 2017USD ($)Customer
Segment Reporting Information [Line Items]
Number of segments | segment	3
Number of fragrance categories | category	2
Number of customers that accounted for more than 10% of consolidated net sales | Customer	0	0	1
Property, plant and equipment	$ 1,386,920	$ 1,241,152
Concentration risk threshold	10.00%
U.S Plans [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 382,659	315,320
NETHERLANDS
Segment Reporting Information [Line Items]
Property, plant and equipment	91,313	103,997
SINGAPORE
Segment Reporting Information [Line Items]
Property, plant and equipment	68,751	73,544
CHINA
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 188,194	178,502
Non-US [Member]
Segment Reporting Information [Line Items]
Concentration risk threshold	6.00%
Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Net sales	$ 336,100	$ 356,800	$ 358,500

Segment Information - Reportabl

Segment Information - Reportable Segment Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 5,140,084	$ 3,977,539	$ 3,398,719
Segment assets	13,287,411	12,889,395
Operating profit	665,270	583,882	552,630
Legal Charges/Credits, net	0	0	56,000
Restructuring and Other Charges, net	(29,765)	(5,079)	(19,711)
Gain on Sale of Assets	(2,367)	1,177	184
Interest expense	(138,221)	(132,558)	(65,363)
Loss on extinguishment of debt	0	(38,810)	0
Other income (expense), net	30,403	35,243	49,778
Income before taxes	557,452	447,757	537,045
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operational Improvement Initiatives	(2,267)	(2,169)	(1,802)
Acquisition Related Costs	0	1,289	(20,389)
Integration Related Costs	(55,160)	(7,188)	(4,179)
Legal Charges/Credits, net	0	0	(1,000)
Tax assessment	0	0	(5,331)
Restructuring and Other Charges, net	(29,765)	(4,086)	(19,711)
Gain on Sale of Assets	(2,367)	1,177	184
FDA Mandated Product Recall	11,314	0	0
UK Pension Settlement Charges	(5,940)	(89,632)	$ 0
Frutarom Industries Ltd. [Member]
Segment Reporting Information [Line Items]
Restructuring and Other Charges, net	$ (10,042)	$ 0
Operating Segments [Member]
Segment Reporting Information [Line Items]
Profit margin	12.90%	14.70%	16.30%
Operating Segments [Member] | Flavors [Member]
Segment Reporting Information [Line Items]
Net sales	$ 1,731,919	$ 1,737,349	$ 1,632,166
Segment assets	2,222,154	2,024,573
Operating profit	$ 382,590	$ 395,190	$ 360,483
Profit margin	22.10%	22.70%	22.10%
Operating Segments [Member] | Fragrances [Member]
Segment Reporting Information [Line Items]
Net sales	$ 1,922,717	$ 1,880,630	$ 1,766,553
Segment assets	2,549,113	2,340,131
Operating profit	$ 333,522	$ 329,548	$ 318,954
Profit margin	17.30%	17.50%	18.10%
Operating Segments [Member] | Frutarom Industries Ltd. [Member]
Segment Reporting Information [Line Items]
Net sales	$ 1,485,448	$ 359,560
Segment assets	8,306,003	7,961,538
Operating profit	$ 126,804	$ 27,358
Profit margin	8.50%	7.60%
Global [Member]
Segment Reporting Information [Line Items]
Segment assets	$ 210,141	$ 563,153
Operating profit	(49,836)	(74,730)	$ (60,810)
Nutrition & Biosciences, Inc [Member]
Segment Reporting Information [Line Items]
Business Acquisition, Transaction Costs	75,000
Nutrition & Biosciences, Inc [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Acquisition Related Costs	(20,747)	0	0
Frutarom Industries Ltd. [Member]
Segment Reporting Information [Line Items]
Amortization		23,500
Business Acquisition, Transaction Costs		66,000
Acquisition-related Costs [Member]
Segment Reporting Information [Line Items]
Operating profit	(250)	7,125	(11,000)
UNITED KINGDOM | Corporate and Other [Member]
Segment Reporting Information [Line Items]
FDA Mandated Product Recall	$ 0	$ 0	$ (2,769)

Segment Information - Capital E

Segment Information - Capital Expenditure and Depreciation and Amortization by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Capital Expenditures	$ 235,978	$ 170,094	$ 128,973
Depreciation and amortization	323,330	173,792	117,967
Operating Segments [Member] | Flavors [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	80,267	70,028	68,937
Depreciation and amortization	56,674	54,534	53,534
Operating Segments [Member] | Fragrances [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	92,077	82,206	53,089
Depreciation and amortization	65,386	64,018	59,951
Operating Segments [Member] | Frutarom Industries Ltd. [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	55,356	12,878
Depreciation and amortization	194,956	47,738
Unallocated assets [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	8,278	4,982	6,947
Depreciation and amortization	$ 6,314	$ 7,502	$ 4,482

Segment Information - Net Sales

Segment Information - Net Sales by Geographic Area (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 5,140,084	$ 3,977,539	$ 3,398,719
Europe, Africa and Middle East [Member]
Segment Reporting Information [Line Items]
Net sales	2,081,758	1,396,316	1,065,596
Greater Asia [Member]
Segment Reporting Information [Line Items]
Net sales	1,162,992	991,015	903,546
North America [Member]
Segment Reporting Information [Line Items]
Net sales	1,170,497	1,010,126	901,821
Latin America [Member]
Segment Reporting Information [Line Items]
Net sales	724,837	580,082	527,756
Geographic Distribution, Domestic [Member]
Segment Reporting Information [Line Items]
Net sales	1,052,654	952,550	864,050
Geographic Distribution, Foreign [Member]
Segment Reporting Information [Line Items]
Net sales	$ 4,087,430	$ 3,024,989	$ 2,534,669

Segment Information Segment Inf

Segment Information Segment Information - Schedule of Long Lived Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	$ 1,386,920	$ 1,241,152
U.S. Pension Plans [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	382,659	315,320
NETHERLANDS
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	91,313	103,997
SINGAPORE
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	68,751	73,544
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	188,194	178,502
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	$ 656,003	$ 569,789

Employee Benefits - Additional

Employee Benefits - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Percentage of Active Employees with Pension and or Other Retirement Benefit Plans Covered	20.00%
Percentage of matching contribution if compensation percentage below low range	100.00%
Matching participant's contribution, percentage on compensation	4.00%
Percentage of matching contribution if compensation percentage between high range and low range	75.00%
Matching participant's contribution, percentage on compensation, range low	4.00%
Matching participant's contribution, percentage on compensation, range high	8.00%
Percentage of employees eligible to accrue benefits under the defined plan	50.00%
Matching participant's contribution, average percentage on compensation	6.00%
Retirement liabilities	$ 265,370,000	$ 227,172,000
Capital in excess of par value related to Deferred Compensation Plan	28,200,000	22,200,000
Total cash surrender value of life insurance contracts	47,578,000	43,179,000
Deferred Compensation Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Retirement liabilities	50,900,000	43,600,000
Pension Plan [Member] | U.S Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	620,654,000	562,043,000	$ 602,783,000
Retirement liabilities	49,292,000	46,519,000
Contribution to the plans	3,683,000	$ 3,524,000
Pension Plan [Member] | U.S Plans [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target percentage of investment in equity securities		20.00%
Pension Plan [Member] | U.S Plans [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target percentage of investment in equity securities		80.00%
Pension Plan [Member] | U.S Plans [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to the plans	0
Pension Plan [Member] | U.S Plans [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to the plans	3,700,000
Pension Plan [Member] | Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	1,099,084,000	$ 957,935,000	973,061,000
Retirement liabilities	143,040,000	114,705,000
Contribution to the plans	$ 20,031,000	18,238,000
Pension Plan [Member] | Non-U.S. Plans [Member] | Real Estate [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target percentage of investment in equity securities	15.00%
Pension Plan [Member] | Non-U.S. Plans [Member] | Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target percentage of investment in equity securities	15.00%
Pension Plan [Member] | Non-U.S. Plans [Member] | Fixed Income Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target percentage of investment in equity securities	35.00%
Pension Plan [Member] | Non-U.S. Plans [Member] | Alternative Type of Investments [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target percentage of investment in equity securities	35.00%
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	$ 64,174,000	$ 59,625,000	$ 82,714,000
Contribution to the plans	$ 2,700,000

Employee Benefits - Plan Assets

Employee Benefits - Plan Assets and Benefit Obligations of Defined Benefit Pension Plans (Detail) - Pension Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
U.S Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned(1)	$ 1,378	$ 1,971	$ 2,175
Interest cost on projected benefit obligation(2)	21,954	19,393	20,075
Expected return on plan assets(2)	(27,927)	(30,994)	(35,577)
Net amortization of deferrals(2)	5,464	6,592	5,424
Settlements and curtailments(2)	0	0	0
Net periodic benefit cost	869	(3,038)	(7,903)
Defined contribution and other retirement plans	9,363	10,527	8,604
Total expense	10,232	7,489	701
Net actuarial loss (gain)	(3,140)	21,050
Recognized actuarial loss	(5,421)	(6,549)
Prior service cost	0	0
Recognized prior service (cost) credit	(43)	(43)
Currency translation adjustment	0	0
Total (gain) loss recognized in OCI (before tax effects)	(8,604)	14,458
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned(1)	19,319	18,738	18,652
Interest cost on projected benefit obligation(2)	17,775	17,704	17,116
Expected return on plan assets(2)	(43,480)	(50,546)	(50,626)
Net amortization of deferrals(2)	11,654	11,798	14,403
Settlements and curtailments(2)	189	0	2,746
Net periodic benefit cost	5,457	(2,306)	2,291
Defined contribution and other retirement plans	9,001	6,859	5,681
Total expense	14,458	4,553	$ 7,972
Net actuarial loss (gain)	61,865	11,937
Recognized actuarial loss	(12,479)	(12,590)
Prior service cost	0	2,776
Recognized prior service (cost) credit	636	792
Currency translation adjustment	6,584	(16,978)
Total (gain) loss recognized in OCI (before tax effects)	$ 56,606	$ (14,063)

Employee Benefits - Components

Employee Benefits - Components of Net Periodic Benefit Cost and Changes in Plan Assets and Benefit Obligations Recognized in OCI (Detail) - Postretirement Benefit Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned(1)	$ 568	$ 755	$ 718
Interest cost on projected benefit obligation(2)	2,265	2,460	2,710
Net amortization of deferrals(2)	(4,919)	(5,497)	(4,913)
Net periodic benefit cost	(2,086)	(2,282)	$ (1,485)
Net actuarial loss (gain)	3,941	(6,677)
Recognized actuarial loss	(1,132)	(1,506)
Prior service credit	0	14,862
Recognized prior service credit	6,051	7,003
Total (gain) loss recognized in OCI (before tax effects)	$ 8,860	$ (16,042)

Employee Benefits - Amounts Exp

Employee Benefits - Amounts Expected to be Recognized in Net Periodic Cost (Detail) $ in Thousands	Dec. 31, 2019USD ($)
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss recognition	$ 1,367
Prior service cost (credit) recognition	(5,964)
U.S Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss recognition	7,388
Prior service cost (credit) recognition	43
Non-U.S. Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss recognition	15,851
Prior service cost (credit) recognition	$ (345)

Employee Benefits - Weighted-Av

Employee Benefits - Weighted-Average Actuarial Assumption Used to Determine Expense (Detail) - Pension Plan [Member]	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
U.S Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.31%	3.69%	4.19%
Expected return on plan assets	5.60%	6.20%	7.30%
Rate of compensation increase	3.25%	3.25%	3.25%
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.22%	2.15%	2.14%
Expected return on plan assets	4.87%	5.19%	5.95%
Rate of compensation increase	1.93%	1.98%	1.97%

Employee Benefits - Changes in

Employee Benefits - Changes in Postretirement Benefit Obligation and Plan Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Postretirement Benefit Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 59,625	$ 82,714
Service cost for benefits earned(1)	568	755	$ 718
Interest cost on projected benefit obligation(2)	2,265	2,460	2,710
Actuarial (gain) loss	3,941	(6,677)
Plan amendments	0	(14,862)
Adjustments for expense/tax contained in service cost	0	0
Plan participants’ contributions	437	435
Benefits paid	(2,662)	(5,200)
Curtailments / settlements	0	0
Translation adjustments	0	0
Acquisitions/Transferred Liabilities	0	0
Other	0	0
Benefit obligation at end of year	64,174	59,625	82,714
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Employer contributions	2,700
U.S Plans [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at end of year	602,408
U.S Plans [Member] | Pension Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	562,043	602,783
Service cost for benefits earned(1)	1,378	1,971	2,175
Interest cost on projected benefit obligation(2)	21,954	19,393	20,075
Actuarial (gain) loss	68,839	(33,284)
Plan amendments	0	0
Adjustments for expense/tax contained in service cost	0	0
Plan participants’ contributions	0	0
Benefits paid	(33,560)	(32,093)
Curtailments / settlements	0	0
Translation adjustments	0	0
Acquisitions/Transferred Liabilities	0	3,273
Other	0	0
Benefit obligation at end of year	620,654	562,043	602,783
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	532,381	581,917
Actual return on plan assets	99,904	(23,339)
Employer contributions	3,683	3,524
Plan participants’ contributions	0	0
Benefits paid	(33,560)	(32,093)
Settlements	0	0
Translation adjustments	0	0
Acquisitions/Transferred Assets	0	2,372
Other	0	0
Fair value of plan assets at end of year	602,408	532,381	581,917
Funded status at end of year	(18,246)	(29,662)
Non-U.S. Plans [Member] | Pension Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	957,935	973,061
Service cost for benefits earned(1)	19,319	18,738	18,652
Interest cost on projected benefit obligation(2)	17,775	17,704	17,116
Actuarial (gain) loss	119,891	(29,433)
Plan amendments	0	2,776
Adjustments for expense/tax contained in service cost	(1,333)	(1,290)
Plan participants’ contributions	2,803	2,047
Benefits paid	(28,977)	(33,862)
Curtailments / settlements	(3,455)	(2,751)
Translation adjustments	13,935	(49,027)
Acquisitions/Transferred Liabilities	0	48,356
Other	1,191	11,616
Benefit obligation at end of year	1,099,084	957,935	973,061
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	896,782	929,810
Actual return on plan assets	100,163	6,699
Employer contributions	20,031	18,238
Plan participants’ contributions	2,803	2,047
Benefits paid	(28,977)	(33,862)
Settlements	(3,455)	(1,564)
Translation adjustments	16,982	(47,247)
Acquisitions/Transferred Assets	0	21,672
Other	954	989
Fair value of plan assets at end of year	1,005,283	896,782	$ 929,810
Funded status at end of year	$ (93,801)	$ (61,153)

Employee Benefits - Amounts Rec

Employee Benefits - Amounts Recognized in Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Other assets	$ 85,657	$ 75,158
Retirement liabilities	(265,370)	(227,172)
U.S Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other assets	35,239	20,949
Other current liabilities	(4,193)	(4,092)
Retirement liabilities	(49,292)	(46,519)
Net amount recognized	(18,246)	(29,662)
Non-U.S. Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other assets	50,418	54,434
Other current liabilities	(1,179)	(882)
Retirement liabilities	(143,040)	(114,705)
Net amount recognized	$ (93,801)	$ (61,153)

Employee Benefits - Amounts R_2

Employee Benefits - Amounts Recognized in Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ 15,436	$ 12,627
Prior service cost (credit)	(27,138)	(33,189)
Total AOCI (before tax effects)	(11,702)	(20,562)
U.S Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	142,828	151,389
Prior service cost (credit)	108	151
Total AOCI (before tax effects)	142,936	151,540
Non-U.S. Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	376,991	321,144
Prior service cost (credit)	(3,087)	(3,926)
Total AOCI (before tax effects)	$ 373,904	$ 317,218

Employee Benefits - Accumulated

Employee Benefits - Accumulated Benefit Obligation (Detail) - Pension Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
U.S Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated Benefit Obligation — end of year	$ 618,486	$ 559,775
Projected benefit obligation	55,714	52,714
Accumulated benefit obligation	55,671	52,690
Fair value of plan assets	$ 2,229	$ 2,103
Discount rate	3.26%	4.31%
Rate of compensation increase	3.25%	3.25%
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated Benefit Obligation — end of year	$ 1,062,515	$ 923,586
Projected benefit obligation	656,574	582,466
Accumulated benefit obligation	620,087	548,116
Fair value of plan assets	$ 512,356	$ 466,878
Discount rate	1.50%	2.22%
Rate of compensation increase	2.48%	1.91%

Employee Benefits - Estimated F

Employee Benefits - Estimated Future Benefit Payments (Detail) $ in Thousands	Dec. 31, 2019USD ($)
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2018	$ 3,808
2019	3,845
2020	3,805
2021	3,797
2022	3,891
2025 - 2029	19,442
Required Company Contributions in Following Year (2020)	3,808
U.S Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2018	37,152
2019	37,908
2020	38,411
2021	38,796
2022	38,831
2025 - 2029	189,425
Required Company Contributions in Following Year (2020)	4,387
Non-U.S. Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2018	27,460
2019	27,607
2020	28,169
2021	28,993
2022	30,142
2025 - 2029	169,438
Required Company Contributions in Following Year (2020)	$ 20,944

Employee Benefits - Percentage

Employee Benefits - Percentage of Assets Invested (Detail) - Pension Plan [Member]	Dec. 31, 2019	Dec. 31, 2018
U.S Plans [Member] | Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	1.00%	1.00%
U.S Plans [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	13.00%	25.00%
U.S Plans [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	86.00%	74.00%
U.S Plans [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	0.00%	0.00%
U.S Plans [Member] | Alternative and other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	0.00%	0.00%
Non-U.S. Plans [Member] | Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	1.00%	3.00%
Non-U.S. Plans [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	14.00%	12.00%
Non-U.S. Plans [Member] | Fixed income [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	37.00%	36.00%
Non-U.S. Plans [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	8.00%	8.00%
Non-U.S. Plans [Member] | Alternative and other investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of assets invested	40.00%	41.00%

Employee Benefits - Fair Value

Employee Benefits - Fair Value Hierarchy of Plan Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
U.S Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 602,408
U.S Plans [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
U.S Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	602,408	$ 532,381	$ 581,917
U.S Plans [Member] | Pension Plan [Member] | Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,431	3,490
U.S Plans [Member] | Pension Plan [Member] | Receivables [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,347	1,465
U.S Plans [Member] | Pension Plan [Member] | Level 1 [Member] | Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Level 2 [Member] | Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,431	3,490
U.S Plans [Member] | Pension Plan [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0
U.S Plans [Member] | Pension Plan [Member] | Level 3 [Member] | Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Government & Government Agency Bonds [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	19,427	17,827
U.S Plans [Member] | Pension Plan [Member] | Government & Government Agency Bonds [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Government & Government Agency Bonds [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	19,427	17,827
U.S Plans [Member] | Pension Plan [Member] | Government & Government Agency Bonds [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Corporate Bonds [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	112,137	96,566
U.S Plans [Member] | Pension Plan [Member] | Corporate Bonds [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Corporate Bonds [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	112,137	96,566
U.S Plans [Member] | Pension Plan [Member] | Corporate Bonds [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Municipal Bonds [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8,460	8,138
U.S Plans [Member] | Pension Plan [Member] | Municipal Bonds [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Municipal Bonds [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8,460	8,138
U.S Plans [Member] | Pension Plan [Member] | Municipal Bonds [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Pooled Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	80,400	133,100
U.S Plans [Member] | Pension Plan [Member] | Pooled Funds [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	456,606	404,895
U.S Plans [Member] | Pension Plan [Member] | Pooled Funds [Member] | Level 1 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Pooled Funds [Member] | Level 2 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Pooled Funds [Member] | Level 3 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Fair Value Of Plan Assets Before Receivables [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	601,061	530,916
U.S Plans [Member] | Pension Plan [Member] | Fair Value Of Plan Assets Before Receivables [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S Plans [Member] | Pension Plan [Member] | Fair Value Of Plan Assets Before Receivables [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	144,455	126,021
U.S Plans [Member] | Pension Plan [Member] | Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	376,000	271,800
Non-U.S. Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,005,283	896,782	$ 929,810
Non-U.S. Plans [Member] | Pension Plan [Member] | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5,921	25,386
Non-U.S. Plans [Member] | Pension Plan [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	275,937	290,496
Non-U.S. Plans [Member] | Pension Plan [Member] | Level 1 [Member] | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5,921	25,386
Non-U.S. Plans [Member] | Pension Plan [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	615,151	511,269
Non-U.S. Plans [Member] | Pension Plan [Member] | Level 2 [Member] | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	114,195	95,017
Non-U.S. Plans [Member] | Pension Plan [Member] | Level 3 [Member] | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Level 3 [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	84,013	69,104
Non-U.S. Plans [Member] | Pension Plan [Member] | U.S. Large Cap [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	84,542	47,269
Non-U.S. Plans [Member] | Pension Plan [Member] | U.S. Large Cap [Member] | Level 1 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	58,926	35,929
Non-U.S. Plans [Member] | Pension Plan [Member] | U.S. Large Cap [Member] | Level 2 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	25,616	11,340
Non-U.S. Plans [Member] | Pension Plan [Member] | U.S. Large Cap [Member] | Level 3 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Large Cap [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	24,720	39,222
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Large Cap [Member] | Level 1 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	24,720	30,841
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Large Cap [Member] | Level 2 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	8,381
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Large Cap [Member] | Level 3 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Mid Cap [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	956	905
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Mid Cap [Member] | Level 1 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	956	905
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Mid Cap [Member] | Level 2 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Mid Cap [Member] | Level 3 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Small Cap [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	738	628
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Small Cap [Member] | Level 1 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	738	628
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Small Cap [Member] | Level 2 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Small Cap [Member] | Level 3 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Emerging Markets [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27,374
Non-U.S. Plans [Member] | Pension Plan [Member] | Emerging Markets [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		22,608
Non-U.S. Plans [Member] | Pension Plan [Member] | Emerging Markets [Member] | Level 1 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27,374
Non-U.S. Plans [Member] | Pension Plan [Member] | Emerging Markets [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		22,608
Non-U.S. Plans [Member] | Pension Plan [Member] | Emerging Markets [Member] | Level 2 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Emerging Markets [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0
Non-U.S. Plans [Member] | Pension Plan [Member] | Emerging Markets [Member] | Level 3 [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Emerging Markets [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0
Non-U.S. Plans [Member] | Pension Plan [Member] | U.S. Treasuries/Government Bonds [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	108	131
Non-U.S. Plans [Member] | Pension Plan [Member] | U.S. Treasuries/Government Bonds [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	108	131
Non-U.S. Plans [Member] | Pension Plan [Member] | U.S. Treasuries/Government Bonds [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | U.S. Treasuries/Government Bonds [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | U S Corporate Bonds [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32,013	29,682
Non-U.S. Plans [Member] | Pension Plan [Member] | U S Corporate Bonds [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | U S Corporate Bonds [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32,013	29,682
Non-U.S. Plans [Member] | Pension Plan [Member] | U S Corporate Bonds [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Treasuries/Government Bonds [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	117,890	142,761
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Treasuries/Government Bonds [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	117,890	137,267
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Treasuries/Government Bonds [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	5,494
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Treasuries/Government Bonds [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Corporate Bonds [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	183,354	116,734
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Corporate Bonds [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33,320	30,893
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Corporate Bonds [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	150,034	85,841
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Corporate Bonds [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Other Fixed Income [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,553	2,324
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Other Fixed Income [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,553	2,324
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Other Fixed Income [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Other Fixed Income [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Asset-Backed Securities [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33,654	32,587
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Asset-Backed Securities [Member] | Level 1 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Asset-Backed Securities [Member] | Level 2 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33,654	32,587
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Asset-Backed Securities [Member] | Level 3 [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Insurance Contracts [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	152,291	153,201
Non-U.S. Plans [Member] | Pension Plan [Member] | Insurance Contracts [Member] | Level 1 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Insurance Contracts [Member] | Level 2 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	152,025	152,947
Non-U.S. Plans [Member] | Pension Plan [Member] | Insurance Contracts [Member] | Level 3 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	266	254
Non-U.S. Plans [Member] | Pension Plan [Member] | Derivative [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	65,016	54,512
Non-U.S. Plans [Member] | Pension Plan [Member] | Derivative [Member] | Level 1 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Derivative [Member] | Level 2 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	65,016	54,512
Non-U.S. Plans [Member] | Pension Plan [Member] | Derivative [Member] | Level 3 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Other [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32,513	28,287
Non-U.S. Plans [Member] | Pension Plan [Member] | Other [Member] | Level 1 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Other [Member] | Level 2 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,330	2,374
Non-U.S. Plans [Member] | Pension Plan [Member] | Other [Member] | Level 3 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	30,183	25,913
Non-U.S. Plans [Member] | Pension Plan [Member] | Absolute Return Funds [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	157,894	131,695
Non-U.S. Plans [Member] | Pension Plan [Member] | Absolute Return Funds [Member] | Level 1 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,431	3,584
Non-U.S. Plans [Member] | Pension Plan [Member] | Absolute Return Funds [Member] | Level 2 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	154,463	128,111
Non-U.S. Plans [Member] | Pension Plan [Member] | Absolute Return Funds [Member] | Level 3 [Member] | Alternative Type of Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Real Estate [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	83,746	68,850
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Real Estate [Member] | Level 1 [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Real Estate [Member] | Level 2 [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Plans [Member] | Pension Plan [Member] | Non-U.S. Real Estate [Member] | Level 3 [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 83,746	$ 68,850

Employee Benefits - Reconciliat

Employee Benefits - Reconciliation of Level 3 Non-U.S. Plan Assets Held (Detail) - Pension Plan [Member] - Non-U.S. Plans [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 896,782	$ 929,810
Actual return on plan assets	100,163	6,699
Fair value of plan assets at end of year	1,005,283	896,782
Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	95,017
Actual return on plan assets	20,844
Purchases, sales and settlements	(1,666)
Fair value of plan assets at end of year	114,195	95,017
Real Estate [Member] | Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	69,104
Actual return on plan assets	15,033
Purchases, sales and settlements	(124)
Fair value of plan assets at end of year	84,013	69,104
Hedge Funds [Member] | Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	25,913
Actual return on plan assets	5,811
Purchases, sales and settlements	(1,542)
Fair value of plan assets at end of year	$ 30,182	$ 25,913

Employee Benefits - Weighted Av

Employee Benefits - Weighted Average Assumptions Used to Determine Postretirement Benefit Expense and Obligation (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Liability [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.30%	4.30%
Current medical cost trend rate	7.25%	7.50%
Ultimate medical cost trend rate	4.75%	4.75%
Expense [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.30%	3.70%
Current medical cost trend rate	7.50%	7.75%
Ultimate medical cost trend rate	4.75%	4.75%

Employee Benefits - Sensitivity

Employee Benefits - Sensitivity of Disclosures to Changes in Selected Assumptions (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
25 BP Decrease in Discount Rate, Change in ABO	$ 1,944
25 BP Decrease in Discount Rate, Change in pension expense	40
U.S. Pension Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
25 BP Decrease in Discount Rate, Change in PBO	14,613
25 BP Decrease in Discount Rate, Change in ABO	14,534
25 BP Decrease in Discount Rate, Change in pension expense	(102)
25 BP Decrease in Long-Term Rate of Return, Change in pension expense	1,248
Non-U.S. Plans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
25 BP Decrease in Discount Rate, Change in PBO	55,415
25 BP Decrease in Discount Rate, Change in ABO	55,374
25 BP Decrease in Discount Rate, Change in pension expense	2,687
25 BP Decrease in Long-Term Rate of Return, Change in pension expense	$ 1,935

Financial Instruments - Carryin

Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Sep. 26, 2018
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 606,823	$ 634,897
Credit facilities and bank overdrafts	3,131	4,695
Derivative assets(3)	3,575	7,229
Derivative liabilities(3)	7,415	6,907
Carrying Amount [Member] | Senior Notes - 2020 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	299,381	298,499
Carrying Amount [Member] | Senior Notes, Euro Notes, 2021 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	334,561	337,704
Carrying Amount [Member] | Senior Notes - 2023 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	299,004	298,698
Carrying Amount [Member] | Senior Notes, Euro Notes, 2024 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	558,124	564,034
Carrying Amount [Member] | Senior Notes, Euro Notes, 2026 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	890,183	899,886
Carrying Amount [Member] | Senior Notes - 2028 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	396,688	396,377	$ 400,000
Carrying Amount [Member] | Senior notes - 2047 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	493,571	493,151
Carrying Amount [Member] | Senior Notes - 2048 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	785,996	785,788	$ 800,000
Carrying Amount [Member] | Term Loan Credit Agreement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	239,621	349,163
Carrying Amount [Member] | Amortizing Note
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	82,079	125,007
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	606,823	634,897
Credit facilities and bank overdrafts	3,131	4,695
Derivative assets(3)	3,575	7,229
Derivative liabilities(3)	7,415	6,907
Fair Value [Member] | Senior Notes - 2020 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	302,700	300,356
Fair Value [Member] | Senior Notes, Euro Notes, 2021 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	338,244	341,094
Fair Value [Member] | Senior Notes - 2023 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	305,580	293,017
Fair Value [Member] | Senior Notes, Euro Notes, 2024 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	586,825	584,129
Fair Value [Member] | Senior Notes, Euro Notes, 2026 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	945,306	909,439
Fair Value [Member] | Senior Notes - 2028 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	441,500	401,231
Fair Value [Member] | Senior notes - 2047 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	526,106	446,725
Fair Value [Member] | Senior Notes - 2048 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	919,040	783,925
Fair Value [Member] | Term Loan Credit Agreement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	240,000	350,000
Fair Value [Member] | Amortizing Note
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	$ 84,430	$ 127,879

Financial Instruments - Derivat

Financial Instruments - Derivative Instruments Notional Amount Outstanding (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Forward Currency Contracts [Member]
Schedule Of Information By Major Category Of Credit Derivatives Contracts [Line Items]
Derivative instruments outstanding	$ 473,600	$ 585,581
Currency Swap [Member]
Schedule Of Information By Major Category Of Credit Derivatives Contracts [Line Items]
Derivative instruments outstanding	$ 600,000	$ 600,000

Financial Instruments - Deriv_2

Financial Instruments - Derivative Instruments Measured at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets		$ 7,229
Total Fair Value, Derivative Liabilities	$ 7,415
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets		1,087
Total Fair Value, Derivative Liabilities	4,187
Foreign Currency Contracts [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	3,575	6,142
Total Fair Value, Derivative Liabilities	3,228	6,907
Fair Value of Derivatives Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets		5,209
Total Fair Value, Derivative Liabilities	4,984
Fair Value of Derivatives Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets		1,087
Total Fair Value, Derivative Liabilities	4,187
Fair Value of Derivatives Designated as Hedging Instrument [Member] | Foreign Currency Contracts [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	1,310	4,122
Total Fair Value, Derivative Liabilities	797	205
Fair Value of Derivatives Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets		2,020
Total Fair Value, Derivative Liabilities	2,431
Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets		0
Total Fair Value, Derivative Liabilities	0
Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Foreign Currency Contracts [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	2,265	2,020
Total Fair Value, Derivative Liabilities	$ 2,431	$ 6,702

Financial Instruments - Deriv_3

Financial Instruments - Derivative Instruments Which Were Not Designated as Hedging Instruments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Foreign Currency Contracts [Member] | Other (income) expense, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) on derivative	$ 557	$ 1,999
Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Foreign Currency Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) on derivative	557	14,505
Deal Contingent Swaps [Member] | Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Foreign Currency Contracts [Member] | Other Income Expense Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) on derivative	0	12,154
Deal Contingent Swaps [Member] | Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) on derivative	$ 0	$ 352

Financial Instruments - Deriv_4

Financial Instruments - Derivative Instruments Designated as Cash Flow and Net Investment Hedging Instruments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	$ 14,731	$ 65,495
Interest expense	138,221	132,558	$ 65,363
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	7,647	(7,067)
Forward Currency Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	(3,535)	14,220
Forward Currency Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	0	(518)
Forward Currency Contracts [Member] | Cost of goods sold [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	8,504	(6,203)
Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	857	864
Interest Rate Swap [Member] | Interest Expense [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)		(864)
Euro Senior Notes 2016 [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	5,440	20,539
Senior Notes Maturing 2021 through 2026 [Member] | Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion)	11,969	30,390
(Losses) Gains on Derivatives Qualifying as Hedges | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 857	$ 864	$ 789

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) $ in Thousands, € in Millions	May 18, 2017EUR (€)	Dec. 31, 2018USD ($)	Mar. 31, 2017EUR (€)Agreement	Mar. 31, 2017USD ($)Agreement	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Sep. 30, 2019swap
Derivatives, Fair Value [Line Items]
Gain on deal contingent derivatives					$ 0	$ 12,505	$ 0
Derivative gains included in AOCI					4,700
Total fair value, derivative assets		$ 7,229				7,229
Proceeds from unwinding of cross currency swap derivative instruments					25,900	0	$ 0
Derivative Liability, Fair Value, Gross Liability					7,415
Forward Currency Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative instruments outstanding		585,581			473,600	585,581
Currency Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative instruments outstanding		600,000			600,000	600,000
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Loss incurred on termination of interest rate swaps			€ 2.9	$ 3,200
Gain on deal contingent derivatives | €	€ 5.3
Number of interest rate derivatives held | Agreement			2	2
Total fair value, derivative assets		1,087				1,087
Derivative Liability, Fair Value, Gross Liability					4,187
Foreign Currency Contract And Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative instruments outstanding					1,900,000
Fair Value of Derivatives Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value, derivative assets		2,020				2,020
Derivative Liability, Fair Value, Gross Liability					2,431
Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Total fair value, derivative assets		0				0
Derivative Liability, Fair Value, Gross Liability					0
Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Foreign Currency Contracts [Member]
Derivatives, Fair Value [Line Items]
Amount of gain or (loss) on derivative					557	14,505
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value, derivative assets		5,209				5,209
Derivative Liability, Fair Value, Gross Liability					4,984
Designated as Hedging Instrument [Member] | Currency Swap [Member]
Derivatives, Fair Value [Line Items]
Interest Income (Expense), Net		7,700
Number of Foreign Currency Derivatives Held | swap								4
Proceeds from unwinding of cross currency swap derivative instruments		33,600
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Total fair value, derivative assets		$ 1,087				1,087
Derivative Liability, Fair Value, Gross Liability					4,187
Other Income Expense Net [Member] | Deal Contingent Swaps [Member] | Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Foreign Currency Contracts [Member]
Derivatives, Fair Value [Line Items]
Amount of gain or (loss) on derivative					0	12,154
Interest Expense [Member] | Deal Contingent Swaps [Member] | Fair Value of Derivatives Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Amount of gain or (loss) on derivative					$ 0	$ 352

- Schedule of Changes in Accumu

- Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	$ 6,032,951
Accumulated other comprehensive loss, net of tax	6,217,304	$ 6,032,951
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	(396,996)	(297,416)	$ (352,025)
OCI before reclassifications	23,953	(99,580)	66,826
Amounts reclassified from AOCI	0	0	(12,217)
Net current period other comprehensive income (loss)	23,953	(99,580)	54,609
Accumulated other comprehensive loss, net of tax	(373,043)	(396,996)	(297,416)
(Losses) Gains on Derivatives Qualifying as Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	4,746	(10,332)	7,604
OCI before reclassifications	4,969	8,011	(14,782)
Amounts reclassified from AOCI	(7,647)	7,067	(3,154)
Net current period other comprehensive income (loss)	(2,678)	15,078	(17,936)
Accumulated other comprehensive loss, net of tax	2,068	4,746	(10,332)
Pension and Postretirement Liability Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	(309,977)	(329,734)	(335,674)
OCI before reclassifications	(45,599)	9,717	(7,941)
Amounts reclassified from AOCI	9,657	10,040	13,881
Net current period other comprehensive income (loss)	(35,942)	19,757	5,940
Accumulated other comprehensive loss, net of tax	(345,919)	(309,977)	(329,734)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss, net of tax	(702,227)	(637,482)	(680,095)
OCI before reclassifications	(16,677)	(81,852)	44,103
Amounts reclassified from AOCI	2,010	17,107	(1,490)
Net current period other comprehensive income (loss)	(14,667)	(64,745)	42,613
Accumulated other comprehensive loss, net of tax	$ (716,894)	$ (702,227)	$ (637,482)

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Reclassifications of Accumulated Other Comprehensive Income to Consolidated Statement of Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	$ 3,027,336	$ 2,294,832	$ 1,926,256
Interest expense	(138,221)	(132,558)	(65,363)
Tax	(97,184)	(107,976)	(241,380)
(Losses) Gains on Derivatives Qualifying as Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax	(1,215)	886	(563)
(Losses) Gains on Derivatives Qualifying as Hedges | Foreign Currency Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	9,719	(7,089)	4,506
(Losses) Gains on Derivatives Qualifying as Hedges | Interest Rate Swap [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	(857)	(864)	(789)
(Losses) Gains on Derivatives Qualifying as Hedges | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	7,647	(7,067)	3,154
(Losses) gains on pension and postretirement liability adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax	(2,731)	(2,853)	(3,778)
(Losses) gains on pension and postretirement liability adjustments | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	(9,657)	(10,040)	(13,881)
Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Losses) gains on pension and postretirement liability adjustments	6,644	7,752	7,040
Actuarial losses
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Losses) gains on pension and postretirement liability adjustments	$ (19,032)	$ (20,645)	$ (24,699)

Concentrations Of Credit Risk -

Concentrations Of Credit Risk - Additional Information (Detail) - Customer	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Risks and Uncertainties [Abstract]
Number of customers that accounted for more than 10% of consolidated net sales	0	0	1

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)Facility	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2019USD ($)Facility	Dec. 15, 2019USD ($)
Commitments And Contingencies [Line Items]
Amount still available for additional borrowings		$ 1,000,000,000				$ 1,000,000,000
Available lines of credit		105,300,000				105,300,000
Property, plant and equipment, gross		2,690,768,000		$ 2,492,938,000		2,690,768,000
Bank guarantees and pledged assets to pursue defenses related to other contingencies						27,700,000
Product liability accrual period expense						5,000,000
Aggregate amount paid				3,000,000		16,000,000
Amount paid			$ 13,000,000
Reimbursement to supplier for product recall						13,100,000
Property, plant and equipment		1,386,920,000		1,241,152,000		1,386,920,000
Minimum [Member]
Commitments And Contingencies [Line Items]
Estimated maximum future costs of environmental liabilities for identified sites (less than $5 million)		0				0
Maximum [Member]
Commitments And Contingencies [Line Items]
Estimated maximum future costs of environmental liabilities for identified sites (less than $5 million)		10,000,000				10,000,000
Hangzhou, China [Member]
Commitments And Contingencies [Line Items]
Proceeds from Sale of Land Held-for-use		4,400,000
CHINA
Commitments And Contingencies [Line Items]
Property, plant and equipment, gross		$ 201,000,000				$ 201,000,000
Number of plants | Facility		8				8
Property, plant and equipment		$ 188,194,000		$ 178,502,000		$ 188,194,000
Zhejiang Ingredients Plant [Member] | Zhejiang, China [Member]
Commitments And Contingencies [Line Items]
Possible compensation payments for relocation		50,000,000				50,000,000
Pledged assets [Member]
Commitments And Contingencies [Line Items]
The amount of pledged assets, principally PP&E to cover income tax and indirect tax assessments						10,000,000
Bank guarantees and standby letters of credit [Member]
Commitments And Contingencies [Line Items]
Bank guarantees and letters of credit outstanding						53,600,000
Bank guarantees [Member]
Commitments And Contingencies [Line Items]
Bank guarantees related to appeals on income tax and indirect tax cases						16,700,000
Damages from Product Defects [Member]
Commitments And Contingencies [Line Items]
Reversal of previously recorded provision		(17,500,000)				(17,500,000)
Unsecured Debt [Member] | Nutrition & Biosciences, Inc [Member] | Senior Unsecured Bridge Term Loan [Member]
Commitments And Contingencies [Line Items]
Debt, face amount							$ 7,500,000,000
Unsecured Debt [Member] | Nutrition & Biosciences, Inc [Member] | Senior Unsecured Term Loan Facilities [Member]
Commitments And Contingencies [Line Items]
Debt, face amount							1,250,000,000
Unsecured Debt [Member] | Nutrition & Biosciences, Inc [Member] | Three Hundred Sixty Four Day Senior Unsecured Bridge Facility [Member]
Commitments And Contingencies [Line Items]
Debt, face amount							$ 6,250,000,000
Taste [Member] | Guangzhou, China [Member]
Commitments And Contingencies [Line Items]
Property, plant and equipment		61,000,000				61,000,000
Scent [Member] | Guangzhou, China [Member]
Commitments And Contingencies [Line Items]
Property, plant and equipment		9,000,000				9,000,000
Nutrition & Biosciences, Inc [Member]
Commitments And Contingencies [Line Items]
Liabilities Subject to Compromise, Early Contract Termination Fees		521,500,000				521,500,000
Business Acquisition, Transaction Costs		75,000,000				75,000,000
BRAZIL | Foreign Tax Authority [Member]
Commitments And Contingencies [Line Items]
Proceeds from Income Tax Refunds		8,000,000
Zhejiang Ingredients Plant [Member]
Commitments And Contingencies [Line Items]
Gain Contingency, Relocation Payments Received	$ 15,000,000				$ 15,000,000
CHINA | Zhejiang Ingredients Plant [Member]
Commitments And Contingencies [Line Items]
Property, plant and equipment		$ 10,000,000				$ 10,000,000

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts and Reserves (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance for doubtful accounts [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 9,173	$ 13,392	$ 9,995
Additions charged to costs and expenses	1,262	1,286	3,798
Accounts written off	(2,024)	(4,642)	(1,496)
Translation adjustments	(180)	(863)	1,095
Balance at end of period	8,231	9,173	13,392
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	200,280	207,483	152,752
Additions charged to costs and expenses	5,659	(1,821)	35,646
Accounts written off	0	0	0
Translation adjustments	(2,174)	(9,269)	19,085
Balance at end of period	$ 203,765	200,280	207,483
Scenario, Adjustment [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Adjustment to foreign net operating loss carryforwards		$ (5,900)	$ (58,800)

Redeemable Noncontrolling Int_3

Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	$ 10,423
Sale of a subsidiary with redeemable noncontrolling interests	4,395	$ 2,479	$ 0
Exercises of redeemable noncontrolling interests	2,541	966
Ending balance	12,244	10,423
Redeemable Noncontrolling Interest [Member]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	81,806	0
Acquired through acquisitions	23,594	97,510
Sale of a subsidiary with redeemable noncontrolling interests	666	2,196
Redemption value mark-up for the current period	2,097	2,848
Exercises of redeemable noncontrolling interests	(13,632)	(14,673)
Exercises of redeemable noncontrolling interests	(753)	(6,075)
Impact of foreign exchange translation	(126)
Measurement period adjustments	5,391
Ending balance	$ 99,043	$ 81,806	$ 0

Subsequent Events (Details)

Subsequent Events (Details) - Unsecured Debt [Member] - Subsequent Event [Member]	Jan. 17, 2020
Maximum [Member] | Three Hundred Sixty Four Day Senior Unsecured Bridge Facility [Member]
Subsequent Event [Line Items]
Maximum ratio of net debt to EBI TDA with step-downs over time	4.50
Maximum [Member] | Senior Unsecured Term Loan Facilities [Member]
Subsequent Event [Line Items]
Maximum ratio of net debt to EBI TDA with step-downs over time	4.50
Minimum [Member] | Three Hundred Sixty Four Day Senior Unsecured Bridge Facility [Member]
Subsequent Event [Line Items]
Maximum ratio of net debt to EBI TDA with step-downs over time	3.50
Minimum [Member] | Senior Unsecured Term Loan Facilities [Member]
Subsequent Event [Line Items]
Maximum ratio of net debt to EBI TDA with step-downs over time	3.50