Business Acquisition, Net Income (Loss)

No definition available.

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- Definition

Business Acquisition, Net Sales

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Business Combination, Adjustment On Cash Payment

+ References

No definition available.

+ Details

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Namespace Prefix:	iff_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Business Combination, Lease Adjustment

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Business Combination, Net Pension Balance Differential Amount Settled In Cash

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Business Combination, Pension Funding Adjustment

+ References

No definition available.

+ Details

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Payroll And Employee Benefits

+ References

No definition available.

+ Details

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Namespace Prefix:	iff_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Dilutive Shares Quotient Multiplier

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
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+ Details

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Period Type:	duration

- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

+ Details

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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-Section 50
-Paragraph 1
-Subparagraph (b)(4)
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Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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-Paragraph 2
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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

+ Details

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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- Definition

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

+ References

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Period Type:	duration

- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

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- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

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- Definition

Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

+ References

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- Definition

Amount of deferred tax asset attributable to deductible temporary differences and carryforwards acquired at the acquisition date.

+ References

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Period Type:	instant

- Definition

Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

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- Definition

The amount of inventory recognized as of the acquisition date.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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- Definition

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

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- Definition

Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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- Definition

Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree.

+ References

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- Definition

The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
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- Definition

Face amount or stated value per share of common stock.

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-Paragraph 1
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- Definition

Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

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Acquisitions - Nutrition & Biosciences, Inc (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	12 Months Ended
	Feb. 01, 2021	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 15, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Common stock, par value		$ 0.125	$ 0.125	$ 0.125
Cash paid to acquire business	$ 7,500
Goodwill		$ 16,414	$ 16,414	$ 5,593	$ 5,497
Net defined benefit plan assets		136	136	101
Nourish
Business Acquisition [Line Items]
Goodwill		6,555	6,555	4,859	4,873
Health & Biosciences
Business Acquisition [Line Items]
Goodwill		6,749	6,749	0	0
Pharma Solutions
Business Acquisition [Line Items]
Goodwill		1,282	1,282	0	0
Scent [Member]
Business Acquisition [Line Items]
Goodwill		1,828	1,828	734	$ 624
International Flavors & Fragrances Inc [Member]
Business Acquisition [Line Items]
Sale of Stock, Percentage of Ownership after Transaction	44.60%
Nutrition & Biosciences, Inc [Member]
Business Acquisition [Line Items]
Business acquisition, equity interest issued or issuable, number of shares	141,740,461
Common stock, par value	$ 0.125					$ 0.125
Cash acquired from acquisition	$ 7,359
Business Acquisition, Net Sales			6,084
Business Acquisition, Net Income (Loss)			11
Cash paid to acquire business	15,929
Equity interests issued and issuable	25
Pension funding adjustment	(12)
Business combination, consideration transferred	$ 15,942
Business acquisition share price	$ 112.38
Net pension balance differential amount settled in cash	$ 220
Cash and cash equivalents	207	193	193
Receivables	962	953	953
Inventory	1,615	1,590	1,590
Prepaid expenses and other current assets	342	374	374
Property, plant and equipment	3,242	3,066	3,066
Deferred income taxes	75	83	83
Intangible assets	9,176	9,223	9,223
Other assets	702	818	818
Accounts payable and accrued liabilities	(1,028)	(1,079)	(1,079)
Accrued payroll and employee benefits	(163)	(148)	(148)
Deferred tax liabilities	(2,369)	(2,395)	(2,395)
Long-term debt	(7,636)	(7,636)	(7,636)
Other long-term liabilities	(907)	(895)	(895)
Total identifiable net assets assumed	4,218	4,147	4,147
Non-controlling interest	(26)	(22)	(22)
Goodwill	11,762	11,817	11,817
Purchase price	15,954	15,942	15,942
Finite lived intangible assets			9,210
Lease adjustment	15
Net defined benefit plan liabilities	221
Acquisition related costs	75
Transaction costs		91	91	29			$ 21
Unaudited pro forma net sales			12,163	11,143
Unaudited pro forma net income attributable to the Company			687	$ 192
Nutrition & Biosciences, Inc [Member] \| In Process Research and Development
Business Acquisition [Line Items]
Indefinite lived intangible assets			13
Nutrition & Biosciences, Inc [Member] \| Microcrystalline Cellulose
Business Acquisition [Line Items]
Acquisition related costs	$ 61
Nutrition & Biosciences, Inc [Member] \| Trade Names [Member]
Business Acquisition [Line Items]
Finite lived intangible assets			261
Nutrition & Biosciences, Inc [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Finite lived intangible assets			6,734
Nutrition & Biosciences, Inc [Member] \| Technological Know-Hows
Business Acquisition [Line Items]
Finite lived intangible assets			2,194
Nutrition & Biosciences, Inc [Member] \| Other [Member]
Business Acquisition [Line Items]
Finite lived intangible assets			$ 21
Useful Lives			2 years
Nutrition & Biosciences, Inc [Member] \| Nourish
Business Acquisition [Line Items]
Goodwill		2,900	$ 2,900
Nutrition & Biosciences, Inc [Member] \| Health & Biosciences
Business Acquisition [Line Items]
Goodwill		6,712	6,712
Nutrition & Biosciences, Inc [Member] \| Pharma Solutions
Business Acquisition [Line Items]
Goodwill		1,329	1,329
Nutrition & Biosciences, Inc [Member] \| Scent [Member]
Business Acquisition [Line Items]
Goodwill		876	876
Nutrition & Biosciences, Inc [Member] \| Restatement Adjustment [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		(14)	(14)
Receivables		(9)	(9)
Inventory		(25)	(25)
Prepaid expenses and other current assets		32	32
Property, plant and equipment		(176)	(176)
Deferred income taxes		8	8
Intangible assets		47	47
Other assets		116	116
Accounts payable and accrued liabilities		(51)	(51)
Accrued payroll and employee benefits		15	15
Deferred tax liabilities		(26)	(26)
Long-term debt		0	0
Other long-term liabilities		12	12
Total identifiable net assets assumed		(71)	(71)
Non-controlling interest		4	4
Goodwill		55	55
Purchase price		(12)	$ (12)
Nutrition & Biosciences, Inc [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Dilutive Shares Quotient Multiplier	44.60%
Nutrition & Biosciences, Inc [Member] \| Minimum [Member] \| Trade Names [Member]
Business Acquisition [Line Items]
Useful Lives			4 years
Nutrition & Biosciences, Inc [Member] \| Minimum [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Useful Lives			11 years
Nutrition & Biosciences, Inc [Member] \| Minimum [Member] \| Technological Know-Hows
Business Acquisition [Line Items]
Useful Lives			5 years
Nutrition & Biosciences, Inc [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Dilutive Shares Quotient Multiplier	55.40%
Nutrition & Biosciences, Inc [Member] \| Maximum [Member] \| Trade Names [Member]
Business Acquisition [Line Items]
Useful Lives			22 years
Nutrition & Biosciences, Inc [Member] \| Maximum [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Useful Lives			27 years
Nutrition & Biosciences, Inc [Member] \| Maximum [Member] \| Technological Know-Hows
Business Acquisition [Line Items]
Useful Lives			18 years
Nutrition & Biosciences, Inc [Member] \| DuPont de Nemours, Inc [Member]
Business Acquisition [Line Items]
Adjustment on cash payment from DuPont		$ 53
Nutrition & Biosciences, Inc [Member] \| International Flavors & Fragrances Inc [Member] \| DuPont de Nemours, Inc [Member]
Business Acquisition [Line Items]
Percentage of voting interest acquired	55.40%