Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Income Statement [Abstract]
Revenue	$ 65,627	$ 55,264	$ 129,636	$ 107,541
Cost of products sold	63,230	53,323	124,920	103,698
Gross margin	2,397	1,941	4,716	3,843
Operating expenses:
Distribution, selling, general and administrative expenses	1,504	1,306	2,965	2,583
Restructuring and employee severance	21	9	41	33
Amortization and other acquisition-related costs	130	105	234	179
Acquisition-related cash and share-based compensation costs	67		131
Impairments and (gain)/loss on disposal of assets, net	(14)	3	(12)	2
Litigation (recoveries)/charges, net	(18)	(31)	(18)	(71)
Operating earnings	707	549	1,375	1,117
Other (income)/expense, net	(11)	3	(21)	(2)
Interest expense, net	88	35	168	67
Earnings/(loss) before income taxes	630	511	1,228	1,052
Provision for income taxes	159	110	303	234
Net earnings/(loss)	471	401	925	818
Less: Net earnings attributable to noncontrolling interests	(4)	(1)	(8)	(2)
Net earnings attributable to Cardinal Health, Inc.	$ 467	$ 400	$ 917	$ 816
Earnings per common share attributable to Cardinal Health, Inc.:
Basic (in shares)	$ 1.98	$ 1.65	$ 3.87	$ 3.37
Diluted (in shares)	$ 1.97	$ 1.65	$ 3.85	$ 3.35
Weighted-average number of common shares outstanding:
Basic (in shares)	236	242	237	242
Diluted (in shares)	237	243	238	243
Cash dividends declared per common share	$ 0.5107	$ 0.5056	$ 1.0214	$ 1.0112
Acquisition-related cash and share-based compensation costs	$ 67		$ 131