Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenue	$ 181,364	$ 162,467	$ 152,922
Cost of products sold	174,819	155,689	146,054
Gross margin	6,545	6,778	6,868
Operating expenses:
Distribution, selling, general and administrative expenses	4,557	4,533	4,572
Restructuring and employee severance	101	114	122
Amortization and other acquisition-related costs	324	451	524
Impairments and (gain)/loss on disposal of assets, net	2,050	79	7
Litigation (recoveries)/charges, net	109	1,129	5,741
Operating earnings/(loss)	(596)	472	(4,098)
Other (income)/expense, net	16	(47)	(1)
Interest expense, net	149	180	238
Loss on early extinguishment of debt	10	14	16
(Gain)/Loss on sale of equity interest in naviHealth	2	(2)	579
Earnings/(loss) before income taxes	(769)	323	(3,772)
Provision for/(benefit from) income taxes	163	(289)	(79)
Net earnings/(loss)	(932)	612	(3,693)
Less: Net earnings attributable to noncontrolling interests	(1)	(1)	(3)
Net earnings/(loss) attributable to Cardinal Health, Inc.	$ (933)	$ 611	$ (3,696)
Earnings/(loss) per common share attributable to Cardinal Health, Inc.
Earnings Per Share, Basic	$ (3.35)	$ 2.09	$ (12.61)
Earnings Per Share, Diluted	$ (3.35)	$ 2.08	$ (12.61)
Weighted-average number of common shares outstanding:
Basic (in shares)	279	292	293
Diluted (in shares)	279	294	293