Revenue (Deferred Revenue Activity) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Contract Liability [Roll Forward]
Beginning Balance	$ 138	$ 106
Increases due to cash received or receivable, excluding amounts recognized as revenue during the period	166	132
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	(134)	(100)
Ending Balance	$ 170	$ 138