Fair Value Measurements - Fair Value of Other Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Fair value disclosures
Total debt	$ 2,161	$ 2,181
Current maturities	(575)	0
Long-term debt, excluding current maturities	1,586	2,181
Carrying Amount
Fair value disclosures
Total debt	2,161	2,181
Current maturities	(575)	0
Long-term debt, excluding current maturities	1,586	2,181
Estimated Fair Value
Fair value disclosures
Total debt	2,015	1,955
Current maturities	(565)	0
Long-term debt, excluding current maturities	$ 1,450	$ 1,955