Business Segments - Segment Assets (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Assets	$ 22,259	$ 20,921	$ 21,555
Operating Segments
Segment Reporting Information [Line Items]
Assets	19,857	18,530
Operating Segments | Americas
Segment Reporting Information [Line Items]
Assets	12,152	11,406
Operating Segments | Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Assets	5,370	4,514
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Assets	2,335	2,610
Corporate
Segment Reporting Information [Line Items]
Assets	$ 2,402	$ 2,391