Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenues	$ 1,594	$ 1,607	$ 3,107	$ 3,229
Cost of sales	720	668	1,392	1,333
Gross profit	874	939	1,715	1,896
Selling, general and administrative	453	437	873	868
Research and development	95	116	191	228
Acquired in-process research and development and milestones	0	15	6	30
Restructuring costs	2	0	88	23
Interest expense	131	131	255	262
Exchange (gains) losses	(1)	(1)	(5)	5
Other (income) expense, net	(35)	6	(23)	9
Income before income taxes	229	235	330	471
Income tax expense	84	40	98	75
Net income	$ 145	$ 195	$ 232	$ 396
Earnings per share:
Basic (in dollars per share)	$ 0.56	$ 0.76	$ 0.90	$ 1.54
Diluted (in dollars per share)	$ 0.56	$ 0.75	$ 0.89	$ 1.53
Weighted average shares outstanding:
Basic (in shares)	259,939	257,288	258,906	256,492
Diluted (in shares)	260,156	258,598	260,584	258,480

Other Operating And Nonoperating Income (Expense)

No definition available.

Name:	ogn_OtherOperatingAndNonoperatingIncomeExpense
Namespace Prefix:	ogn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.