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Basis of Presentation and Summary of Accounting Principles (Schedule of change in accounting estimates) (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Change in Accounting Estimate [Line Items]      
Contract with Customer, Performance Obligation Satisfied in Previous Period $ (452) $ 152 $ 296
Operating profit 3,561 5,504 5,136
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent $ 3,195 $ 5,216 $ 3,897
Income from continuing operations attributable to common shareowners $ 2.23 $ 3.51 $ 2.58
Contracts Accounted for under Percentage of Completion      
Change in Accounting Estimate [Line Items]      
Operating profit $ (648) $ (37) $ 110
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent $ (512) $ (29) $ 87
Income from continuing operations attributable to common shareowners $ (0.36) $ (0.02) $ 0.06