Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue	$ 50,487	$ 44,836	$ 151,559	$ 134,261
Cost of products sold	48,702	43,154	146,497	129,321
Gross margin	1,785	1,682	5,062	4,940
Operating expenses:
Distribution, selling, general and administrative expenses	1,179	1,137	3,567	3,402
Restructuring and employee severance	16	31	62	56
Amortization and other acquisition-related costs	74	79	216	237
Impairments and (gain)/loss on disposal of assets, net	20	471	883	1,764
Litigation (recoveries)/charges, net	(76)	61	(256)	113
Operating earnings/(loss)	572	(97)	590	(632)
Other (income)/expense, net	0	3	(5)	(14)
Interest expense, net	28	38	78	115
Loss on early extinguishment of debt	0	0	0	10
(Gain)/loss on sale of equity interest in naviHealth	0	(1)	0	(2)
Earnings/(loss) before income taxes	544	(137)	517	(741)
Provision for income taxes	197	1,253	189	328
Net earnings/(loss)	347	(1,390)	328	(1,069)
Less: Net earnings attributable to noncontrolling interests	(2)	(1)	(3)	(2)
Net earnings/(loss) attributable to Cardinal Health, Inc.	$ 345	$ (1,391)	$ 325	$ (1,071)
Earnings/(Loss) per common share attributable to Cardinal Health, Inc.:
Basic (in shares)	$ 1.35	$ (5.05)	$ 1.24	$ (3.82)
Diluted (in shares)	$ 1.34	$ (5.05)	$ 1.23	$ (3.82)
Weighted-average number of common shares outstanding:
Basic (in shares)	256	275	263	281
Diluted (in shares)	258	275	264	281
Cash dividends declared per common share	$ 0.4957	$ 0.4908	$ 1.4871	$ 1.4724