Stock-Based Compensation - Schedule of Stock Option Vesting (Details) - USD ($) $ in Millions	12 Months Ended
May 31, 2024	May 31, 2023	May 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award Options Additional Disclosures Abstract
Vested during the year	2,599,042	2,711,215	3,005,727
Fair value	$ 137	$ 137	$ 138

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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