Revenues and Segment Information, Segment Assets to Consolidated Assets Recon (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Total Assets by Reportable Segments to Consolidated
Assets	$ 57,988	$ 60,143
Operating Segments [Member]
Total Assets by Reportable Segments to Consolidated
Assets	51,316	53,954	$ 56,370
Corporate, Non-Segment [Member]
Total Assets by Reportable Segments to Consolidated
Assets	6,938	6,565
Intersegment Eliminations [Member]
Total Assets by Reportable Segments to Consolidated
Assets	$ (266)	$ (376)