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Commitments, Contingent Liabilities and Litigation Narrative (Details) $ in Millions |  | 3 Months Ended
--- | --- | ---
Oct. 30, 2018 organization | Oct. 30, 2018 category | Oct. 30, 2018 country | Oct. 30, 2018 lawsuit | Sep. 30, 2018 USD ($) category
Loss Contingencies [Line Items] |  |  |  |  |
Loss Contingency State Attorneys Investigating Opioids | category |  |  |  |  | 33,832,540
Estimated Insurance Recoveries |  |  |  |  | $ 10.0
Product Liability Lawsuits [Member] | Subsequent Event |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of lawsuits filed | lawsuit |  |  |  | 19 |
CVS Health |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Maximum quarterly payment |  |  |  |  | 45.6
Opioid Lawsuits [Member] | Subsequent Event |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss Contingency State Attorneys Investigating Opioids | country |  |  | 39 |  |
Number of lawsuits filed |  | 1,000 |  | 50 |
Loss Contingency, Number of Different States Plaintiffs Reside | country |  |  | 48 |  |
Product Liability Lawsuits [Member] | Subsequent Event |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of lawsuits filed | lawsuit |  |  |  | 198 |
Minimum |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss Contingency Accrual, Net of Insurance Recoveries |  |  |  |  | 268.0
Maximum |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss Contingency Accrual, Net of Insurance Recoveries |  |  |  |  | $ 459.0
Alameda County [Member] | Product Liability Lawsuits [Member] | Subsequent Event |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of plaintiffs | organization | 2,218 |  |  |  |
Other Jurisdictions [Member] | Product Liability Lawsuits [Member] | Subsequent Event |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of plaintiffs | organization | 20 |  |  |  |

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