Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenue	$ 162,467	$ 152,922	$ 145,534
Cost of products sold	155,689	146,054	138,700
Gross margin	6,778	6,868	6,834
Operating expenses:
Distribution, selling, general and administrative expenses	4,533	4,572	4,480
Restructuring and employee severance	114	122	125
Amortization and other acquisition-related costs	451	524	621
Impairments and (gain)/loss on disposal of assets, net	79	7	(488)
Litigation (recoveries)/charges, net	1,129	5,741	36
Operating earnings/(loss)	472	(4,098)	2,060
Other (income)/expense, net	(47)	(1)	15
Interest expense, net	180	238	294
Loss on early extinguishment of debt	14	16	0
Gain (Loss) on Sale of Investments	(2)	579	0
Earnings/(loss) before income taxes	323	(3,772)	1,751
Provision for/(benefit from) income taxes	(289)	(79)	386
Net earnings	612	(3,693)	1,365
Less: Net earnings attributable to noncontrolling interests	(1)	(3)	(2)
Net earnings/(loss) attributable to Cardinal Health, Inc.	$ 611	$ (3,696)	$ 1,363
Earnings/(loss) per common share attributable to Cardinal Health, Inc.
Earnings Per Share, Basic	$ 2.09	$ (12.61)	$ 4.55
Earnings Per Share, Diluted	$ 2.08	$ (12.61)	$ 4.53
Weighted-average number of common shares outstanding:
Basic (in shares)	292	293	300
Diluted (in shares)	294	293	301