Revenue Recognition - Customer Receivables and Contract Balances (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jan. 01, 2023	Dec. 31, 2022	Jan. 01, 2022
Revenue from Contract with Customer [Abstract]
Customer receivables	$ 238		$ 297
Contract assets	8		9
Contract liabilities	280	$ 343	343	$ 317
Gross affiliate receivables	267		324
Allowance for credit losses	$ 29		$ 27

Amount of allowance for credit loss on accounts receivable.

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-Topic 944
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Name:	us-gaap_AllowanceForDoubtfulAccountsReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant