Revenue Recognition Contract Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Contract With Customer, Liability [Line Items]
Contract with Customer, Liability - Beginning of Period	$ 1,064	$ 1,039	$ 1,081	$ 1,043
Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Change in Measure of Progress	33	40	150	164
Other Significant Noncash Transaction, Value of Consideration Received	2	3	6	7
Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination	53	(2)	53	3
Contract with Customer, Liability, Revenue Recognized	(66)	(68)	(204)	(205)
Contract with Customer, Liability - End of Period	$ 1,086	$ 1,012	$ 1,086	$ 1,012