Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,431	$ 1,215	$ 1,166
Other comprehensive income/(loss):
Foreign currency translation adjustments and other	(82)	(104)	9
Net unrealized gain/(loss) on derivative instruments, net of tax	(11)	11	(7)
Total other comprehensive income/(loss), net of tax	(93)	(93)	2
Total comprehensive income	1,338	1,122	1,168
Less: comprehensive income attributable to noncontrolling interests	(4)	0	0
Total comprehensive income attributable to Cardinal Health, Inc.	$ 1,334	$ 1,122	$ 1,168