Commitments, Contingent Liabilities and Litigation (Narrative) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)
Loss Contingencies
Proceeds from Legal Settlements	$ 0.0	$ 14.0	$ 13.0	$ 14.0
DEA Investigation and Related Matters
Loss Contingencies
Litigation accrual	$ 44.0		$ 44.0		$ 41.0
CVS Health
Commitments [Abstract]
Initial term of Pharmaceutical Sourcing Venture			10 years
Number of quarterly payments			39
Quarterly payment			$ 25.6
Increase in quarterly payments			10.0
Fiscal 2017 | CVS Health
Commitments [Abstract]
Further Increase in Quarterly Payments			10.0
Maximum Quarterly Payment			$ 45.6