Revenues and Segment Information, Segment Assets to Consolidated Assets Recon (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025	Sep. 30, 2025
Total Assets by Reportable Segments to Consolidated
Assets	$ 67,951	$ 57,988
Operating Segments [Member]
Total Assets by Reportable Segments to Consolidated
Assets	56,682	51,316	$ 52,105
Corporate, Non-Segment [Member]
Total Assets by Reportable Segments to Consolidated
Assets	11,815	6,938
Intersegment Eliminations [Member]
Total Assets by Reportable Segments to Consolidated
Assets	$ (546)	$ (266)