Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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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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Estimated amount of loss resulting from an adverse tax position.

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Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax.

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Business Combination, Option To Acquire Outstanding Equity, Value

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Income taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Income taxes (Details) - USD ($) $ in Millions	May 31, 2024	May 31, 2023	May 31, 2024	May 31, 2023	Aug. 02, 2012
Effective Income Tax Rate Reconciliation [Line Items]
Effective tax rate	8.00%	86.30%	6.30%	33.80%
Income taxes paid			$ 238	$ 170
Estimate of possible loss	$ 2,700
Alliance Boots
Effective Income Tax Rate Reconciliation [Line Items]
Outstanding equity interest percentage					45.00%
Option to acquire outstanding equity percentage					55.00%
Option to acquire outstanding equity, value					$ 866