Changes in Contract Estimates at Completion (Schedule of Change in Accounting Estimate) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Change in Accounting Estimate [Line Items]
Total net sales	$ (40)	$ 97
Operating profit	1,652	1,080
Net income from continuing operations attributable to common shareowners	$ 1,426	$ 1,103
Diluted earnings per share from continuing operations attributable to common shareowners (1)	$ 0.97	$ 0.74
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Operating profit	$ (124)	$ 36
Net income from continuing operations attributable to common shareowners	$ (98)	$ 28
Diluted earnings per share from continuing operations attributable to common shareowners (1)	$ (0.07)	$ 0.02