Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net earnings/(loss)	$ 454	$ 417
Other comprehensive income/(loss):
Foreign currency translation adjustments and other	(4)	5
Net unrealized gain/(loss) on derivative instruments, net of tax	0	7
Total other comprehensive income/(loss), net of tax	(4)	12
Total comprehensive income	450	429
Less: comprehensive income attributable to noncontrolling interests	(4)	(1)
Total comprehensive income attributable to Cardinal Health, Inc.	$ 446	$ 428