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