Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 310	$ 384
Other comprehensive income/(loss):
Foreign currency translation adjustments and other	(1)	(44)
Net unrealized gain/(loss) on derivative instruments, net of tax	1	(1)
Total other comprehensive income/(loss), net of tax	0	(45)
Total comprehensive income	310	339
Less: comprehensive income attributable to noncontrolling interests	(1)	(1)
Total comprehensive income attributable to Cardinal Health, Inc.	$ 309	$ 338