Changes in Contract Estimates at Completion (Schedule of Change in Accounting Estimate) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Change in Accounting Estimate [Line Items]
Total net sales	$ (18)	$ (40)
Operating profit	1,870	1,687
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Operating profit	(162)	(124)
Income attributable to common shareowners (1)	$ (128)	$ (98)
Diluted earnings per share attributable to common shareowners (1)	$ (0.10)	$ (0.07)