CONSOLIDATED STATEMENT OF INCOME (LOSS) AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 3,307	$ 3,089	$ 6,533	$ 5,554
Cost of goods sold	2,171	2,179	4,252	3,890
Gross profit	1,136	910	2,281	1,664
Research and development expenses	158	164	315	307
Selling and administrative expenses	456	412	915	863
Amortization of acquisition-related intangibles	184	200	370	352
Impairment of long-lived assets	120	0	120	0
Restructuring and other charges	7	24	9	28
Gains on sales of fixed assets	(2)	0	(2)	0
Operating profit	213	110	554	114
Interest expense	77	77	149	142
Other expense (income), net	6	(11)	(10)	(18)
Income (loss) before taxes	130	44	415	(10)
Provision for income taxes	21	14	60	0
Net income (loss)	109	30	355	(10)
Net income attributable to noncontrolling interests	2	2	4	4
Net income (loss) attributable to IFF shareholders	$ 107	$ 28	$ 351	$ (14)
Net income per share - basic (in dollars per share)	$ 0.43	$ 0.11	$ 1.38	$ (0.06)
Net income per share - diluted (in dollars per share)	$ 0.43	$ 0.11	$ 1.38	$ (0.06)
Average number of shares outstanding - basic (in shares)	255	254	255	230
Average number of shares outstanding - diluted (in shares)	255	255	255	230
Dividends declared per share, in dollars per share	$ 0.79	$ 0.77	$ 1.58	$ 1.54
Other comprehensive (loss) income, after tax:
Foreign currency translation adjustments	$ (589)	$ 263	$ (788)	$ (154)
Gains on derivatives qualifying as hedges	0	2	0	6
Pension and postretirement liability adjustment	1	3	1	12
Net current period other comprehensive income (loss)	(588)	268	(787)	(136)
Comprehensive (loss) income	(479)	298	(432)	(146)
Comprehensive (loss) income attributable to IFF shareholders	$ (481)	$ 296	$ (436)	$ (150)