Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Revenue	$ 37,341	$ 35,213
Cost of Goods and Services Sold	35,662	33,546
Gross margin	1,679	1,667
Operating expenses:
Distribution, selling, general and administrative expenses	1,107	1,155
Restructuring and employee severance	30	32
Amortization and other acquisition-related costs	132	156
Impairments and (gain)/loss on disposal of assets, net	1	(511)
Litigation (recoveries)/charges, net	5,673	19
Operating earnings/(loss)	(5,264)	816
Other (income)/expense, net	14	3
Interest expense, net	66	77
Earnings/(loss) before income taxes	(5,344)	736
Provision for (benefit from) income taxes	(423)	142
Net earnings/(loss)	(4,921)	594
Less: Net earnings attributable to noncontrolling interests	(1)	(1)
Net earnings/(loss) attributable to Cardinal Health, Inc.	$ (4,922)	$ 593
Earnings/(loss) per common share attributable to Cardinal Health, Inc.:
Basic (in shares)	$ (16.65)	$ 1.95
Diluted (in shares)	$ (16.65)	$ 1.94
Weighted-average number of common shares outstanding:
Basic (in shares)	296	305
Diluted (in shares)	296	306
Cash dividends declared per common share	$ 0.4811	$ 0.4763