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Commitments, Contingent Liabilities and Litigation (Details) $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 09, 2016 plaintiff lawsuit | Jul. 31, 2014 USD ($) quarterly_payment | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($)
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |
Future minimum rental payments for operating leases - 2017 |  |  | $ 119.0 |  |
Future minimum rental payments for operating leases - 2018 |  |  | 100.0 |  |
Future minimum rental payments for operating leases - 2019 |  |  | 81.0 |  |
Future minimum rental payments for operating leases - 2020 |  |  | 67.0 |  |
Future minimum rental payments for operating leases - 2021 |  |  | 50.0 |  |
Future minimum rental payments for operating leases - thereafter |  |  | 127.0 |  |
Rent expense, operating leases |  |  | 126.0 | $ 104.0 | $ 107.0
Loss Contingencies [Line Items] |  |  |  |  |
Proceeds from litigation settlements |  |  | 80.0 | 71.0 | $ 24.0
Subsequent Event |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of lawsuits filed | lawsuit | 18 |  |  |  |
Number of plaintiffs | plaintiff | 180 |  |  |  |
DEA Investigation and Related Matters |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Litigation charges |  |  | 3.0 | 41.0 |
Litigation accrual |  |  | 44.0 | $ 41.0 |
CVS Health |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Initial term of pharmaceutical sourcing venture |  | 10 years |  |  |
Number of quarterly payments | quarterly_payment |  | 39 |  |  |
Quarterly payment |  | $ 25.6 |  |  |
Increase in quarterly payments |  |  | 10.0 |  |
Further increase in quarterly payments |  |  | 10.0 |  |
Maximum quarterly payment |  |  | $ 45.6 |  |

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