Business Combinations (Goodwill) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill		$ 54,436	$ 54,285
Goodwill, Acquired During Period	$ 800	566
Goodwill, Translation and Purchase Accounting Adjustments		(415)
Collins Aerospace Systems [Member]
Business Acquisition [Line Items]
Goodwill		31,384	31,571
Goodwill, Acquired During Period		228
Goodwill, Translation and Purchase Accounting Adjustments		(415)
Pratt and Whitney [Member]
Business Acquisition [Line Items]
Goodwill		1,563	1,563
Goodwill, Acquired During Period		0
Goodwill, Translation and Purchase Accounting Adjustments		0
Raytheon Intelligence & Space
Business Acquisition [Line Items]
Goodwill		9,813	9,522
Goodwill, Acquired During Period		286
Goodwill, Translation and Purchase Accounting Adjustments		5
Goodwill, Transfers		282
Raytheon Missiles & Defense
Business Acquisition [Line Items]
Goodwill		11,659	11,608
Goodwill, Acquired During Period		52
Goodwill, Translation and Purchase Accounting Adjustments		(1)
Goodwill, Transfers		(282)
Total Segments [Member]
Business Acquisition [Line Items]
Goodwill		54,419	54,264
Goodwill, Acquired During Period		566
Goodwill, Translation and Purchase Accounting Adjustments		(411)
Eliminations and other [Member]
Business Acquisition [Line Items]
Goodwill		17	$ 21
Goodwill, Acquired During Period		0
Goodwill, Translation and Purchase Accounting Adjustments		$ (4)