Acquisitions (Details) - USD ($) $ in Millions	1 Months Ended
	Dec. 31, 2024	Jan. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Business Combination [Line Items]
Goodwill			$ 19,879	$ 18,941	$ 17,997
Featurespace Limited
Business Combination [Line Items]
Total purchase consideration	$ 946
Amount allocated to technology, intangible assets, other net assets acquired and deferred tax liabilities	152
Goodwill	$ 794
Pismo Holdings
Business Combination [Line Items]
Total purchase consideration		$ 929
Amount allocated to technology, intangible assets, other net assets acquired and deferred tax liabilities		139
Goodwill		$ 790