Summary of Significant Accounting Policies - Interest and Software (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Summary of Significant Accounting Policies
Total interest costs	$ 590	$ 425	$ 388
Total capitalized interest costs	$ 63	$ 29	$ 13