Segment Financial Data (Segment Operating Performance) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Revenues	$ 16,951	$ 16,213	$ 48,981	$ 47,344
Operating profit	$ 1,480	$ 1,343	$ 3,913	$ 3,638
Operating Profit Margin	8.70%	8.30%	8.00%	7.70%
Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 17,784	$ 16,959	$ 51,344	$ 49,532
Operating profit	$ 1,711	$ 1,546	$ 4,578	$ 4,329
Operating Profit Margin	9.60%	9.10%	8.90%	8.70%
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	$ (833)	$ (746)	$ (2,363)	$ (2,188)
Operating profit	(50)	(27)	(131)	(98)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating profit	(77)	(89)	(255)	(319)
Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	5,100	4,592	14,935	13,507
Operating profit	$ 616	$ 478	$ 1,602	$ 1,298
Operating Profit Margin	12.10%	10.40%	10.70%	9.60%
Collins Aerospace Systems [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 4,661	$ 4,227	$ 13,733	$ 12,438
Collins Aerospace Systems [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	439	365	1,202	1,069
Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	5,380	4,725	14,878	13,035
Operating profit	$ 316	$ 187	$ 769	$ 319
Operating Profit Margin	5.90%	4.00%	5.20%	2.40%
Pratt & Whitney [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 5,378	$ 4,725	$ 14,876	$ 13,035
Pratt & Whitney [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	2	0	2	0
Raytheon Intelligence & Space [Member]
Segment Reporting Information [Line Items]
Revenues	3,626	3,740	10,768	11,310
Operating profit	$ 371	$ 391	$ 1,064	$ 1,194
Operating Profit Margin	10.20%	10.50%	9.90%	10.60%
Raytheon Intelligence & Space [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 3,290	$ 3,427	$ 9,788	$ 10,373
Raytheon Intelligence & Space [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	336	313	980	937
Raytheon Missiles & Defense
Segment Reporting Information [Line Items]
Revenues	3,678	3,902	10,763	11,680
Operating profit	$ 408	$ 490	$ 1,143	$ 1,518
Operating Profit Margin	11.10%	12.60%	10.60%	13.00%
Raytheon Missiles & Defense | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 3,618	$ 3,835	$ 10,576	$ 11,483
Raytheon Missiles & Defense | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	60	67	187	197
FAS/CAS Operating Adjustment | Segment Reconciling Items
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating profit	378	499	1,135	1,347
Acquisition accounting adjustment member | Segment Reconciling Items
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating profit	$ (482)	$ (586)	$ (1,414)	$ (1,621)