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Commitments, Contingent Liabilities and Litigation (Details) $ in Millions |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | ---
Oct. 31, 2017 organization plaintiff lawsuit | Jul. 31, 2014 | Sep. 30, 2017 USD ($)
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Request for Information |  |  | 40
Loss Contingency Accrual, Net of Insurance Recoveries | $ |  |  | $ 129.0
Subsequent Event |  |  |
Loss Contingencies [Line Items] |  |  |
Number of plaintiffs | plaintiff | 1,030 |  |
Product Liability Lawsuits [Member] | Subsequent Event |  |  |
Loss Contingencies [Line Items] |  |  |
Number of lawsuits filed | 15 |  |
Number of plaintiffs | organization | 25 |  |
CVS Health |  |  |
Loss Contingencies [Line Items] |  |  |
Initial term of pharmaceutical sourcing venture |  | 10 years |
Maximum quarterly payment | $ |  |  | $ 45.6
Opioid Lawsuits [Member] | Subsequent Event |  |  |
Loss Contingencies [Line Items] |  |  |
Number of lawsuits filed | 98 |  |
Product Liability Lawsuits [Member] | Subsequent Event |  |  |
Loss Contingencies [Line Items] |  |  |
Number of lawsuits filed | 90 |  |

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