Acquisitions - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended
	Jan. 31, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Business Acquisition [Line Items]
Goodwill		$ 18,941	$ 17,997	$ 17,787
Pismo Holdings
Business Acquisition [Line Items]
Total purchase consideration	$ 929
Amount allocated to technology, intangible assets, other net assets acquired and deferred tax liabilities	139
Goodwill	$ 790