Leasing (Lease, Cost) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Leases [Abstract]
Operating lease expense	$ 7	$ 9	$ 14	$ 17
Variable lease expense	1	1	2	2
Total lease expense, net	$ 8	$ 10	$ 16	$ 19