Consolidated Statements of Earnings/(Loss) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Revenue	$ 226,827	$ 204,979	$ 181,326
Cost of products sold	219,413	198,105	174,842
Gross margin	7,414	6,874	6,484
Operating expenses:
Distribution, selling, general and administrative expenses	5,000	4,800	4,512
Restructuring and employee severance	175	95	101
Amortization and other acquisition-related costs	284	285	324
Impairments and (gain)/loss on disposal of assets, net	634	1,246	2,060
Litigation (recoveries)/charges, net	78	(304)	94
Operating earnings/(loss)	1,243	752	(607)
Other (income)/expense, net	(9)	5	22
Interest expense, net	51	84	147
Loss on early extinguishment of debt	0	0	10
(Gain)/Loss on sale of equity interest in naviHealth	0	0	2
Earnings/(loss) before income taxes	1,201	663	(784)
Provision for income taxes	348	332	153
Net earnings/(loss)	853	331	(937)
Less: Net earnings attributable to noncontrolling interests	(1)	(1)	(1)
Net earnings/(loss) attributable to Cardinal Health, Inc.	$ 852	$ 330	$ (938)
Earnings/(loss) per common share attributable to Cardinal Health, Inc.
Basic (in dollars per share)	$ 3.48	$ 1.27	$ (3.37)
Diluted (in dollars per share)	$ 3.45	$ 1.26	$ (3.37)
Weighted-average number of common shares outstanding:
Basic (in shares)	245	261	279
Diluted (in shares)	247	262	279