Basis of Presentation (Unaudited) Backlog and Contract Assets and Liabilities (Details 3) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Change in Contract with Customer, Liability [Abstract]
Contract with Customer, Liability, Revenue Recognized	$ 899	$ 466	$ 2,600	$ 1,900
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 78,800		$ 78,800
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation			backlog, we expect to recognize approximately 40 percent as revenue over the next 12 months and 65 percent as revenue over the next 24 months, with the remainder to be recognized thereafter.