Changes in Contract Estimates at Completion (Schedule of Change in Accounting Estimate) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Change in Accounting Estimate [Line Items]
Total Net Sales	$ (19)	$ 73	$ 78	$ 125
Operating profit	1,353	1,282	2,433	2,295
Income from continuing operations attributable to common shareowners	$ 1,304	$ 1,040	$ 2,407	$ 1,812
Diluted earnings per share from continuing operations attributable to common shareholders (1)	$ 0.88	$ 0.69	$ 1.61	$ 1.20
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Operating profit	$ (41)	$ 27	$ (5)	$ 39
Income from continuing operations attributable to common shareowners	$ (32)	$ 22	$ (4)	$ 31
Diluted earnings per share from continuing operations attributable to common shareholders (1)	$ (0.02)	$ 0.01	$ 0	$ 0.02