v3.22.2.2
Acquisitions, Divestitures, Goodwill and Intangible Assets (Schedule of Changes in Goodwill by Segment) (Details) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Goodwill [Roll Forward]    
Beginning balance, Goodwill $ 6,744 $ 6,313
Acquisitions of businesses   430
Divestiture of a business (6) (1)
Goodwill re-allocation   0
Foreign currency translation adjustments (120) 2
Ending balance, Goodwill 6,618 6,744
Defense Solutions    
Goodwill [Roll Forward]    
Beginning balance, Goodwill 3,681 3,300
Acquisitions of businesses   425
Divestiture of a business (6) (1)
Goodwill re-allocation   (17)
Foreign currency translation adjustments (62) (26)
Ending balance, Goodwill 3,613 3,681
Civil    
Goodwill [Roll Forward]    
Beginning balance, Goodwill 2,097 2,047
Acquisitions of businesses   5
Divestiture of a business 0 0
Goodwill re-allocation   17
Foreign currency translation adjustments (58) 28
Ending balance, Goodwill 2,039 2,097
Health    
Goodwill [Roll Forward]    
Beginning balance, Goodwill 966 966
Acquisitions of businesses   0
Divestiture of a business 0 0
Goodwill re-allocation   0
Foreign currency translation adjustments 0 0
Ending balance, Goodwill $ 966 $ 966