Segment Financial Data (Segment Operating Performance) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Revenues	$ 18,315	$ 16,314	$ 35,529	$ 32,030
Operating profit	$ 1,458	$ 1,353	$ 3,110	$ 2,433
Operating Profit Margin	8.00%	8.30%	8.80%	7.60%
Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 19,206	$ 17,108	$ 37,253	$ 33,560
Operating profit	$ 1,757	$ 1,511	$ 3,618	$ 2,867
Operating Profit Margin	9.10%	8.80%	9.70%	8.50%
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	$ (891)	$ (794)	$ (1,724)	$ (1,530)
Operating profit	(60)	(47)	(47)	(81)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating profit	(59)	(42)	(102)	(178)
Collins Aerospace [Member]
Segment Reporting Information [Line Items]
Revenues	5,850	5,011	11,431	9,835
Operating profit	$ 821	$ 546	$ 1,615	$ 986
Operating Profit Margin	14.00%	10.90%	14.10%	10.00%
Collins Aerospace [Member] \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 5,396	$ 4,607	$ 10,559	$ 9,072
Collins Aerospace [Member] \| Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	454	404	872	763
Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	5,701	4,969	10,931	9,498
Operating profit	$ 230	$ 302	$ 645	$ 453
Operating Profit Margin	4.00%	6.10%	5.90%	4.80%
Pratt & Whitney [Member] \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 5,701	$ 4,969	$ 10,930	$ 9,498
Pratt & Whitney [Member] \| Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	0	0	1	0
Raytheon Intelligence & Space [Member]
Segment Reporting Information [Line Items]
Revenues	3,655	3,570	7,220	7,142
Operating profit	$ 291	$ 315	$ 615	$ 693
Operating Profit Margin	8.00%	8.80%	8.50%	9.70%
Raytheon Intelligence & Space [Member] \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 3,263	$ 3,245	$ 6,457	$ 6,498
Raytheon Intelligence & Space [Member] \| Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	392	325	763	644
Raytheon Missiles & Defense
Segment Reporting Information [Line Items]
Revenues	4,000	3,558	7,671	7,085
Operating profit	$ 415	$ 348	$ 743	$ 735
Operating Profit Margin	10.40%	9.80%	9.70%	10.40%
Raytheon Missiles & Defense \| Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 3,954	$ 3,493	$ 7,578	$ 6,958
Raytheon Missiles & Defense \| Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	46	65	93	127
FAS/CAS Operating Adjustment \| Segment Reconciling Items
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating profit	309	379	623	757
Acquisition accounting adjustment member \| Segment Reconciling Items
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating profit	$ (489)	$ (448)	$ (982)	$ (932)