Effective Income Tax Rate Reconciliation, Lapse Of Applicable Statute Of Limitations And Tax Settlement, Amount

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Effective Income Tax Reconciliation, Tax Expense (Benefit), Intra-Entity Transfers Of Assets Other Than Inventory, Amount

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Income Tax Examination, Estimate Of Possible Liability Adjustment

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations.

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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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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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of increase (decrease) in loss contingency liability.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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Amount of unrecognized tax benefits.

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Amount of interest expense accrued for an underpayment of income taxes.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
Income Taxes - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Income Tax Contingency [Line Items]
Effective income tax rate reconciliation, release of valuation allowance			$ (157)	$ 0	$ 0
Tax expense (benefit), intra-entity transfers of assets other than inventory, amount	$ (43)	$ (147)
Discrete tax benefits related to statute of limitation expirations and tax settlements				115
Tax expense (benefit), share-based payment arrangement			(37)	(58)	(10)
European businesses held for sale			0	0	1,509
Valuation allowance	653		653	696
Increase (decrease) in valuation allowance			(43)
Unrecognized tax benefits	1,463		1,463	1,399	1,523	$ 1,754
Unrecognized tax benefits that would Impact income tax expense and the effective tax rate	1,400		1,400
Income tax expense (benefit), before any tax effect, related to accrued interest and penalties			84	31	8
Accrued interest and penalties on unrecognized tax benefits	222		222	138
Undistributed earnings of foreign operations	4,300		4,300
Minimum
Income Tax Contingency [Line Items]
Tax liability increase due to proposed adjustment to taxable income	600		600
Maximum
Income Tax Contingency [Line Items]
Tax liability increase due to proposed adjustment to taxable income	700		700
U.K. Businesses (Disposal Group) and Austrian Business
Income Tax Contingency [Line Items]
European businesses held for sale					1,200
Held-for-sale \| E.U. Businesses (Disposal Group)
Income Tax Contingency [Line Items]
European businesses held for sale				$ 438	438
Federal
Income Tax Contingency [Line Items]
Federal, state and foreign net operating loss carryforwards	45		45
State
Income Tax Contingency [Line Items]
Federal, state and foreign net operating loss carryforwards	3,600		3,600
Foreign Tax Authority
Income Tax Contingency [Line Items]
Federal, state and foreign net operating loss carryforwards	1,700		1,700
National Prescription Opiate Litigation \| Pending Litigation
Income Tax Contingency [Line Items]
Loss contingency accrual, period increase (decrease)					$ 274
Capital Loss Carryforward \| Foreign Tax Authority
Income Tax Contingency [Line Items]
Federal, state and foreign net operating loss carryforwards	$ 717		$ 717