Commitments and Contingent Liabilities - Estimated Accrual Liability (Details) - National Prescription Opioid Litigation - USD ($) $ in Millions	Dec. 31, 2023	Mar. 31, 2023
Loss Contingencies [Line Items]
Current litigation liabilities	$ 516	$ 548
Long-term litigation liabilities	6,128	6,625
Total litigation liabilities	$ 6,644	$ 7,173

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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