Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 44,836	$ 39,275	$ 134,261	$ 119,881
Cost of products sold	43,154	37,463	129,321	114,578
Gross margin	1,682	1,812	4,940	5,303
Operating expenses:
Distribution, selling, general and administrative expenses	1,137	1,120	3,402	3,404
Restructuring and employee severance	31	24	56	81
Amortization and other acquisition-related costs	79	111	237	345
Impairments and (gain)/loss on disposal of assets, net	471	69	1,764	78
Litigation (recoveries)/charges, net	61	15	113	1,085
Operating earnings/(loss)	(97)	473	(632)	310
Other (income)/expense, net	3	(12)	(14)	(31)
Interest expense, net	38	45	115	136
Loss on Extinguishment of Debt	0	0	10	1
(Gain)/Loss on sale of equity interest in naviHealth	(1)	0	(2)	0
Earnings/(loss) before income taxes	(137)	440	(741)	204
Provision for/(benefit from) income taxes	1,253	320	328	(293)
Net earnings/(loss)	(1,390)	120	(1,069)	497
Less: Net earnings attributable to noncontrolling interests	(1)	(1)	(2)	(2)
Net earnings/(loss) attributable to Cardinal Health, Inc.	$ (1,391)	$ 119	$ (1,071)	$ 495
Earnings/(Loss) per common share attributable to Cardinal Health, Inc.:
Basic (in shares)	$ (5.05)	$ 0.41	$ (3.82)	$ 1.69
Income (Loss) from Continuing Operations, Per Diluted Share	$ (5.05)	$ 0.40	$ (3.82)	$ 1.68
Weighted-average number of common shares outstanding:
Basic (in shares)	275	292	281	293
Diluted (in shares)	275	294	281	294
Cash dividends declared per common share	$ 0.4908	$ 0.4859	$ 1.4724	$ 1.4577