Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 324	$ 326	$ 634	$ 710
Other comprehensive loss:
Foreign currency translation adjustments and other	(78)	(28)	(80)	(73)
Net unrealized gain/(loss) on derivative instruments, net of tax	24	(1)	26	(1)
Total other comprehensive loss, net of tax	(54)	(29)	(54)	(74)
Total comprehensive income	270	297	580	636
Less: comprehensive income attributable to noncontrolling interests	0	0	(1)	(1)
Total comprehensive income attributable to Cardinal Health, Inc.	$ 270	$ 297	$ 579	$ 635