Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Name:	us-gaap_ShortTermBorrowings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Subsequent events (Details) - USD ($) $ in Millions	Mar. 02, 2023	Feb. 28, 2023	Aug. 31, 2022
Subsequent Event [Line Items]
Total short-term debt		$ 4,222	$ 1,059
Subsequent Event \| Unsecured Credit Facility, 364 Day Term, Due 2024 \| Credit facilities
Subsequent Event [Line Items]
Total short-term debt	$ 900
Debt term	364 days