Share-Based Compensation (Details) - Stock compensation plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based compensation
Share based compensation expense	$ 9	$ 13	$ 15
Income tax benefit recognized, associated with share-based compensation expense	$ 2	$ 3	$ 4