CONSOLIDATED STATEMENT OF INCOME (LOSS) AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Net sales	$ 2,929	$ 3,307	$ 5,956	$ 6,533
Cost of goods sold	1,996	2,171	4,059	4,252
Gross profit	933	1,136	1,897	2,281
Research and development expenses	161	158	322	315
Selling and administrative expenses	445	456	899	915
Amortization of acquisition-related intangibles	172	184	343	370
Impairment of long-lived assets	0	120	0	120
Restructuring and other charges	7	7	59	9
Gain (Loss) on Disposition of Assets	(3)	2	2	2
Operating profit	145	213	276	554
Interest expense	116	77	227	149
Other (income) expense, net	(21)	6	(15)	(10)
Income before taxes	50	130	64	415
Provision for income taxes	23	21	45	60
Net income	27	109	19	355
Net income attributable to non-controlling interests	0	2	1	4
Net income attributable to IFF shareholders	$ 27	$ 107	$ 18	$ 351
Net income per share - basic (in dollars per share)	$ 0.11	$ 0.43	$ 0.07	$ 1.38
Net income per share - diluted (in dollars per share)	$ 0.11	$ 0.43	$ 0.07	$ 1.38
Average number of shares outstanding - basic (in shares)	255	255	255	255
Average number of shares outstanding - diluted (in shares)	255	255	255	255
Dividends declared per share, in dollars per share	$ 0.81	$ 0.79	$ 1.62	$ 1.58
Other comprehensive income (loss), after tax:
Foreign currency translation adjustments	$ 60	$ (589)	$ 344	$ (788)
Pension and postretirement liability adjustment	(1)	1	(3)	1
Net current period other comprehensive income (loss)	59	(588)	341	(787)
Comprehensive income (loss)	86	(479)	360	(432)
Comprehensive income (loss) attributable to IFF shareholders	$ 86	$ (481)	$ 359	$ (436)