Summary of Significant Accounting Policies Depreciation and Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Total depreciation and amortization	$ 115	$ 124	$ 109
Selling, General and Administrative Expenses
Total depreciation and amortization	4	4	2
Cost of Sales
Total depreciation and amortization	$ 111	$ 121	$ 107