Segment Information (Long-Lived Assets By Geographic Area) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Long-Lived Assets [Line Items]
Long-lived Assets	$ 1,121	$ 1,171
North America [Member]
Long-Lived Assets [Line Items]
Long-lived Assets	366	377
Europe [Member]
Long-Lived Assets [Line Items]
Long-lived Assets	65	75
Rest of World [Member]
Long-Lived Assets [Line Items]
Long-lived Assets	$ 690	$ 719