Commitments, Contingent Liabilities and Litigation Narrative (Details) $ in Millions		3 Months Ended
	Nov. 01, 2019 StateAG plaintiff lawsuit	Sep. 30, 2019 USD ($)	Oct. 21, 2019 USD ($)
Subsequent Event
Loss Contingencies [Line Items]
Opioid Total Settlement, Cuyahoga and Summit Counties			$ 215.0
Opioid Litigation, less Cuyahoga and Summit Counties [Member]
Loss Contingencies [Line Items]
litigation settlement liability recorded		$ 5,560.0
Cash Component For Settlement Framework, Term		18 years
Cuyahoga and Summit County [Member]
Loss Contingencies [Line Items]
litigation settlement liability recorded		$ 66.0
Opioid Lawsuits [Member] | Subsequent Event
Loss Contingencies [Line Items]
Loss Contingency, Lawsuits, Number	2,400
Lawsuits Against Distributors | StateAG	21
InvestigationbyMultitateTaskForce | StateAG	43
CVS Health
Loss Contingencies [Line Items]
Long-term Purchase Commitment, Period		10 years
Maximum quarterly payment		$ 45.6
Minimum
Loss Contingencies [Line Items]
Loss Contingency Accrual, Net of Insurance Recoveries		414.0
Maximum
Loss Contingencies [Line Items]
Loss Contingency Accrual, Net of Insurance Recoveries		836.0
Alameda County [Member] | Product Liability Lawsuits [Member] | Subsequent Event
Loss Contingencies [Line Items]
Loss Contingency, Lawsuits, Number | lawsuit	280
Number of plaintiffs | plaintiff	3,463
Other Jurisdictions [Member] | Product Liability Lawsuits [Member] | Subsequent Event
Loss Contingencies [Line Items]
Loss Contingency, Lawsuits, Number | plaintiff	24
Number of plaintiffs | plaintiff	28
Total Opioid Litigation [Member]
Loss Contingencies [Line Items]
litigation settlement liability recorded		5,630.0
Opioid Settlement Framework [Member]
Loss Contingencies [Line Items]
litigation settlement liability recorded		$ 5,140.0
Private Parties [Member] | Opioid Lawsuits [Member] | Subsequent Event
Loss Contingencies [Line Items]
Loss Contingency, Lawsuits, Number | lawsuit	325
Class Action Lawsuits [Member] | Private Parties [Member] | Opioid Lawsuits [Member] | Subsequent Event
Loss Contingencies [Line Items]
Loss Contingency, Lawsuits, Number | lawsuit	97