Segment Information - Total Assets (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Assets
Total assets:	$ 9,334	$ 9,669	$ 9,911
Reportable segment totals
Assets
Total assets:	8,805	9,167	9,226
Other
Assets
Total assets:	529	502	685
Americas | Reportable segment totals
Assets
Total assets:	5,009	5,218	5,574
Europe | Reportable segment totals
Assets
Total assets:	$ 3,796	$ 3,949	$ 3,652