Leases - Other information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases
Operating cash flows from operating leases	$ 52	$ 52	$ 75
Financing cash flows from finance leases	3	3	2
Right-of-use assets obtained in exchange for new operating lease liabilities	13	16	7
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 171	$ 33	$ 42