Commitments, Contingent Liabilities and Litigation (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Commitments [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 97
Operating Leases, Future Minimum Payments, Due in Two Years	80
Operating Leases, Future Minimum Payments, Due in Three Years	60
Operating Leases, Future Minimum Payments, Due in Four Years	45
Operating Leases, Future Minimum Payments, Due in Five Years	31
Operating Leases, Future Minimum Payments, Due Thereafter	74
Operating Leases, Rent Expense	107	92	86
Gain (Loss) Related to Litigation Settlement [Abstract]
Proceeds from Legal Settlements	$ 24	$ 38
State of West Virginia vs Cardinal Health, Inc
Loss Contingencies [Line Items]
Loss Contingency, Number of Defendants	13