Revenue Recognition Contract Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Contract With Customer, Asset [Line Items]
Contract with Customer, Asset, Net - Beginning of Period	$ 36	$ 29
Contract with Customer, Asset, Cumulative Catch-up Adjustment to Revenue, Change in Measure of Progress	41	43
Contract with Customer, Asset, Reclassified to Receivable	(27)	(30)
Contract with Customer, Asset, Net - End of Period	$ 50	$ 42