GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS, NET, Schedule of Goodwill and Net Identifiable Intangible Asset Balances (Details) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 660	$ 466	$ 464
Identifiable intangible assets, net	222	134	$ 147
Total goodwill and identifiable intangible assets, net	$ 882	$ 600

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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