Changes in Contract Estimates at Completion (Schedule of Change in Accounting Estimate) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Change in Accounting Estimate [Line Items]
Total net sales	$ 72	$ 82	$ 150	$ 207
Operating profit	1,480	1,343	3,913	3,638
Income from continuing operations attributable to common shareowners	$ 1,387	$ 1,400	$ 3,794	$ 3,212
Diluted earnings per share from continuing operations attributable to common shareholders (1)	$ 0.94	$ 0.93	$ 2.55	$ 2.13
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Operating profit	$ 7	$ 25	$ 2	$ 64
Income from continuing operations attributable to common shareowners	$ 6	$ 20	$ 2	$ 51
Diluted earnings per share from continuing operations attributable to common shareholders (1)	$ 0	$ 0.01	$ 0	$ 0.03