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Commitments, Contingent Liabilities and Litigation (Details) $ in Millions |  | 12 Months Ended
--- | --- | ---
Aug. 20, 2018 plaintiff states lawsuit | Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($)
Commitments and Contingencies Disclosure [Abstract] |  |  |  |
Future minimum rental payments for operating leases - 2019 |  | $ 113.0 |  |
Future minimum rental payments for operating leases - 2020 |  | 97.0 |  |
Future minimum rental payments for operating leases - 2021 |  | 77.0 |  |
Future minimum rental payments for operating leases - 2022 |  | 58.0 |  |
Future minimum rental payments for operating leases - 2023 |  | 41.0 |  |
Future minimum rental payments for operating leases - thereafter |  | 103.0 |  |
Rent expense, operating leases |  | 172.0 | $ 159.0 | $ 126.0
Opioid Lawsuits | Subsequent Event |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed | lawsuit | 1,000 |  |  |
Number of counties | states | 48 |  |  |
Loss Contingency State Attorneys Investigating Opioids | lawsuit | 39 |  |  |
Cordis |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss Contingency Accrual, Net of Insurance Recoveries |  | 259.0 |  |
Alameda County [Member] | Product Liability Lawsuits | Subsequent Event |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed | lawsuit | 174 |  |  |
Number of plaintiffs | plaintiff | 1,918 |  |  |
Other Jurisdictions [Member] | Product Liability Lawsuits | Subsequent Event |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed | plaintiff | 20 |  |  |
Number of plaintiffs | plaintiff | 21 |  |  |
Class Action Lawsuits [Member] | Opioid Lawsuits | Subsequent Event |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed | lawsuit | 32 |  |  |
CVS Health |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Maximum quarterly payment |  | $ 45.6 |  |

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