Revenues and Segment Information, Segment Assets to Consolidated Assets Recon (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025
Total Assets by Reportable Segments to Consolidated
Assets	$ 62,142	$ 57,988
Operating Segments [Member]
Total Assets by Reportable Segments to Consolidated
Assets	54,709	51,316	$ 52,659
Corporate, Non-Segment [Member]
Total Assets by Reportable Segments to Consolidated
Assets	7,807	6,938
Intersegment Eliminations [Member]
Total Assets by Reportable Segments to Consolidated
Assets	$ (374)	$ (266)