Segment Information (Long-Lived Assets By Geographic Area) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Long-Lived Assets [Line Items]
Long-lived Assets	$ 1,087	$ 1,101
North America [Member]
Long-Lived Assets [Line Items]
Long-lived Assets	353	354
Europe [Member]
Long-Lived Assets [Line Items]
Long-lived Assets	99	86
Rest of World [Member]
Long-Lived Assets [Line Items]
Long-lived Assets	$ 635	$ 661