Revenues and Segment Information, Segment Expenditures for Long-Lived Assets to Consolidated Recon (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Segment Reporting [Line Items]
Expenditures for long-lived assets	$ 432	$ 409	$ 1,230	$ 1,475
Operating Segments [Member]
Segment Reporting [Line Items]
Expenditures for long-lived assets	426	385	1,206	1,419
Corporate, Non-Segment [Member]
Segment Reporting [Line Items]
Expenditures for long-lived assets	$ 6	$ 24	$ 24	$ 56