Segment Information - Total Assets (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Assets
Total assets:	$ 9,911	$ 9,061	$ 8,873
Reportable segment totals
Assets
Total assets:	9,226	8,501	8,353
Other
Assets
Total assets:	685	560	520
Americas | Reportable segment totals
Assets
Total assets:	5,574	5,109	5,028
Europe | Reportable segment totals
Assets
Total assets:	$ 3,652	$ 3,392	$ 3,325