Revenue Recognition - Capitalized Contract Costs (Details) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021
Capitalized Contract Cost [Line Items]
Total	$ 313	$ 266
Other current assets
Capitalized Contract Cost [Line Items]
Total	139	149
Other noncurrent assets
Capitalized Contract Cost [Line Items]
Total	$ 174	$ 117

Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126905575&loc=SL49131252-203054

Name:	us-gaap_CapitalizedContractCostGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant