Segment Information - Total Assets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Assets
Total assets:	$ 9,409	$ 9,669	$ 9,425
Reportable segment totals
Assets
Total assets:	8,987	9,167	8,980
Other
Assets
Total assets:	422	502	445
Americas | Reportable segment totals
Assets
Total assets:	5,258	5,218	5,341
Europe | Reportable segment totals
Assets
Total assets:	$ 3,729	$ 3,949	$ 3,639