Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue	$ 205,012	$ 181,364	$ 162,467
Cost of products sold	198,123	174,819	155,689
Gross margin	6,889	6,545	6,778
Operating expenses:
Distribution, selling, general and administrative expenses	4,834	4,557	4,533
Restructuring and employee severance	95	101	114
Amortization and other acquisition-related costs	285	324	451
Impairments and (gain)/loss on disposal of assets, net	1,250	2,050	79
Litigation (recoveries)/charges, net	(302)	109	1,129
Operating earnings/(loss)	727	(596)	472
Other (income)/expense, net	(4)	16	(47)
Interest expense, net	93	149	180
Loss on early extinguishment of debt	0	10	14
(Gain)/Loss on sale of equity interest in naviHealth	0	2	(2)
Earnings/(loss) before income taxes	638	(769)	323
Provision for/(benefit from) income taxes	376	163	(289)
Net earnings	262	(932)	612
Less: Net earnings attributable to noncontrolling interests	(1)	(1)	(1)
Net earnings/(loss) attributable to Cardinal Health, Inc.	$ 261	$ (933)	$ 611
Earnings/(loss) per common share attributable to Cardinal Health, Inc.
Earnings Per Share, Basic	$ 1.00	$ (3.35)	$ 2.09
Earnings Per Share, Diluted	$ 1.00	$ (3.35)	$ 2.08
Weighted-average number of common shares outstanding:
Basic (in shares)	261	279	292
Diluted (in shares)	262	279	294