Contingencies (Details) $ in Millions			9 Months Ended
	Nov. 15, 2022 USD ($)	Aug. 17, 2022 USD ($) defendant	Jul. 31, 2023 USD ($) securitiesClassAction plaintiff shareholder case officer classAction	Dec. 20, 2022 state	Oct. 31, 2022 USD ($)	Sep. 27, 2021 shareholder
Loss Contingencies [Line Items]
Number of single-county cases | case			5
Opioids Litigation
Loss Contingencies [Line Items]
Loss contingency, accrued liabilities			$ 2,800		$ 3,300
Amount awarded to other party	$ 3,100
Number of states with settlement agreements | state				50
Number of days following a satisfied condition from a settlement administrator			15 days
Number of days following the effective date of the settlement framework			15 days
Loss contingency, damages paid, value			$ 600
Number of securities class actions | securitiesClassAction			2
Number of shareholders that filed derivative actions | shareholder			2			3
Loss contingency, officers in connection with disclosure | officer			2
Number of orders issued | plaintiff			2
Opioids Litigation | Judicial Ruling, Pending Appeal
Loss Contingencies [Line Items]
Loss contingency, number of defendants | defendant		3
Loss contingency, damages awarded, value		$ 700
Loss contingency, damages awarded, period		15 years
Canada Opioids Class Action Complaints
Loss Contingencies [Line Items]
Number of putative class actions | classAction			2