Acquisition, Dispositions, Goodwill and Intangible Assets (Goodwill) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($)
Goodwill [Line Items]
Goodwill - Beginning Balance	$ 54,436
Goodwill - Acquisitions and Divestitures	31
Goodwill - Foreign Currency Translation and Other	(1,299)
Goodwill - Ending Balance	53,168
Collins Aerospace Systems [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	31,384
Goodwill - Acquisitions and Divestitures	(36)
Goodwill - Foreign Currency Translation and Other	(1,293)
Goodwill - Ending Balance	30,055
Pratt & Whitney [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	1,563
Goodwill - Acquisitions and Divestitures	0
Goodwill - Foreign Currency Translation and Other	0
Goodwill - Ending Balance	1,563
Raytheon Intelligence & Space [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	9,813
Goodwill - Acquisitions and Divestitures	26
Goodwill - Foreign Currency Translation and Other	(2)
Goodwill - Ending Balance	9,837
Raytheon Missiles & Defense
Goodwill [Line Items]
Goodwill - Beginning Balance	11,659
Goodwill - Acquisitions and Divestitures	41
Goodwill - Foreign Currency Translation and Other	(4)
Goodwill - Ending Balance	11,696
Total Segments [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	54,419
Goodwill - Acquisitions and Divestitures	31
Goodwill - Foreign Currency Translation and Other	(1,299)
Goodwill - Ending Balance	53,151
Eliminations and other [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	17
Goodwill - Acquisitions and Divestitures	0
Goodwill - Foreign Currency Translation and Other	0
Goodwill - Ending Balance	$ 17