Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net earnings/(loss)	$ 347	$ (1,390)	$ 328	$ (1,069)
Other comprehensive income/(loss):
Foreign currency translation adjustments and other	4	(4)	(34)	(47)
Net unrealized gain on derivative instruments, net of tax	0	12	6	4
Total other comprehensive income/(loss), net of tax	4	8	(28)	(43)
Total comprehensive income/(loss)	351	(1,382)	300	(1,112)
Less: Net earnings attributable to noncontrolling interests	(2)	(1)	(3)	(2)
Total comprehensive income attributable to Cardinal Health, Inc.	$ 349	$ (1,383)	$ 297	$ (1,114)