Revenue Recognition Contract Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Contract With Customer, Liability [Line Items]
Contract with Customer, Liability - Beginning of Period	$ 1,053	$ 1,010	$ 1,081	$ 1,043
Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Change in Measure of Progress	75	95	117	124
Other Significant Noncash Transaction, Value of Consideration Received	2	2	4	4
Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination	0	0	0	5
Contract with Customer, Liability, Revenue Recognized	(66)	(68)	(138)	(137)
Contract with Customer, Liability - End of Period	$ 1,064	$ 1,039	$ 1,064	$ 1,039