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- Definition

Litigation Settlement, Award Amount To Be Used by State and Local Government

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Loss Contingency, Claims Settled, Number Of Jurisdictions Not Participating In Settlement

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Loss Contingency, Class Action, Number of Faxes Received

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Loss Contingency, Class Action, Number of Faxes Remaining in the Class

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- Definition

Loss Contingency, Damages Sought Per Violation, Value

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Loss Contingency, Number Of Cases Dismissed

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Loss Contingency, Number of Other Defendants

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Loss Contingency, Number of States Filed On Behalf Of

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Loss Contingency, Number of States

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- Definition

Number Of Antitrust Settlements

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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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Amount awarded to other party in judgment or settlement of litigation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of damages awarded to the plaintiff in the legal matter.

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Number of plaintiffs that have filed claims pertaining to a loss contingency.

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Number of pending claims pertaining to a loss contingency.

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Commitments and Contingent Liabilities - Narrative (Details)				3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 27, 2022 USD ($)	Oct. 08, 2021 plaintiff	May 17, 2013 USD ($)	Sep. 30, 2024 USD ($) case state distributor settlement subdivision	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) case state distributor subdivision	Sep. 30, 2023 USD ($)	Mar. 31, 2024 USD ($) plaintiff	Jul. 31, 2020 state	Aug. 13, 2019 fax faxNumber
Loss Contingencies [Line Items]
Claims and litigation charges				$ (4,000,000)	$ (2,000,000)	$ 108,000,000	$ (2,000,000)
Number of plaintiffs \| plaintiff		2
Proceeds from legal settlements				$ 63,000,000
Number of antitrust settlement \| settlement				2
U.S. Pharmaceutical
Loss Contingencies [Line Items]
Proceeds from legal settlements				$ 63,000,000	$ 79,000,000	153,000,000	$ 197,000,000
National Prescription Opioid Litigation
Loss Contingencies [Line Items]
Claims and litigation charges						114,000,000		$ 149,000,000
National Prescription Opioid Litigation \| Corporate Segment and U.S. Pharmaceutical Segment
Loss Contingencies [Line Items]
Claims and litigation charges						$ 57,000,000
National Prescription Opioid Litigation \| U.S. Pharmaceutical
Loss Contingencies [Line Items]
Claims and litigation charges								(74,000,000)
National Prescription Opioid Litigation \| Corporate
Loss Contingencies [Line Items]
Claims and litigation charges								$ (75,000,000)
National Prescription Opioid Litigation \| United States
Loss Contingencies [Line Items]
Complaints filed against the entity \| case				400		400
National Prescription Opioid Litigation \| Canada
Loss Contingencies [Line Items]
Complaints filed against the entity \| case				4		4
National Prescription Opioid Litigation \| An individual \| United States
Loss Contingencies [Line Items]
Complaints filed against the entity \| case				1		1
National Prescription Opioid Litigation \| An individual \| Canada
Loss Contingencies [Line Items]
Complaints filed against the entity \| case				1		1
National Prescription Opioid Litigation
Loss Contingencies [Line Items]
Number of other national distributors named in suit \| distributor				2		2
Number of states in which court cases are pending \| state				48		48
Loss contingency, number of cases dismissed \| case				2,300		2,300
Portion of settlement award to be used by state and local government for remediation (percent)				85.00%		85.00%
Loss contingency, claims settled, number of jurisdictions not participating in settlement \| subdivision				1		1
Number of plaintiffs \| plaintiff								1
National Prescription Opioid Litigation \| State of Alabama and Subdivisions
Loss Contingencies [Line Items]
Settlement payment						$ 75,000,000
Award payable under proposed framework						$ 99,000,000
National Prescription Opioid Litigation \| Native American Tribes Other Than Cherokee Nation
Loss Contingencies [Line Items]
Litigation settlement, amount awarded to other party, percentage of total settlement to be used to remediate damages				0.85		0.85
National Prescription Opioid Litigation \| Settling Governmental Entities and Cherokee Nation \| Settled Litigation
Loss Contingencies [Line Items]
Settlement payment						$ 500,000,000
National Prescription Opioid Litigation \| Three Largest U.S. Pharmaceutical Distributors
Loss Contingencies [Line Items]
Settlement payment						2,000,000,000
Award payable under proposed framework						5,900,000,000
National Prescription Opioid Litigation \| Three National Pharmaceutical Distributors \| State of West Virginia and Subdivisions
Loss Contingencies [Line Items]
Settlement payment						53,000,000
Award payable under proposed framework						99,000,000
National Prescription Opioid Litigation \| Three National Pharmaceutical Distributors \| Cherokee Nation
Loss Contingencies [Line Items]
Settlement payment						112,000,000
National Prescription Opioid Litigation \| Three National Pharmaceutical Distributors \| Native American Tribes Other Than Cherokee Nation
Loss Contingencies [Line Items]
Award payable under proposed framework						$ 84,000,000
United States ex rel. Hart v. McKesson Corporation, et al., 15-cv-00903-RA
Loss Contingencies [Line Items]
Number of states filed on behalf of \| state									27
True Health Chiropractic Inc., et al. v. McKesson Corporation, et al
Loss Contingencies [Line Items]
Loss contingency, class action, number of faxes remaining in the class \| faxNumber										9,490
Loss contingency, class action, number of faxes received \| fax										48,769
Amounts awarded to plaintiff	$ 6,500
True Health Chiropractic Inc., et al. v. McKesson Corporation, et al \| Minimum
Loss Contingencies [Line Items]
Loss contingency, damages sought per violation, value			$ 500
True Health Chiropractic Inc., et al. v. McKesson Corporation, et al \| Maximum
Loss Contingencies [Line Items]
Loss contingency, damages sought per violation, value			$ 1,500