Fair Value Measurements - Fair Value of Other Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Fair value disclosures
Long-term debt	$ 2,167	$ 2,181
Long-Term Debt, Current Maturities	575	0
Long-term debt	1,592	2,181
Carrying Amount
Fair value disclosures
Long-term debt	2,167	2,181
Long-Term Debt, Current Maturities	575	0
Long-term debt	1,592	2,181
Estimated Fair Value
Fair value disclosures
Long-term debt	1,957	1,955
Long-Term Debt, Current Maturities	559	0
Long-term debt	$ 1,398	$ 1,955