Fair Value Measurements - Fair Value of Other Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Fair value disclosures
Long-term debt	$ 2,171	$ 2,181
Carrying Amount
Fair value disclosures
Long-term debt	2,171	2,181
Estimated Fair Value
Fair value disclosures
Long-term debt	$ 1,962	$ 1,955

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant