Segment Financial Data (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue from External Customer [Line Items]
Net sales	$ 64,388	$ 56,587	$ 45,349
U S Government Sales Excluding Foreign Military Sales
Revenue from External Customer [Line Items]
Net sales	31,177	25,962	9,094
Foreign Military Sales Through The U S Government
Revenue from External Customer [Line Items]
Net sales	5,546	4,585	1,571
Foreign Government Direct Commercial Sales
Revenue from External Customer [Line Items]
Net sales	4,993	3,974	1,498
Commercial Aerospace And Other Commercial
Revenue from External Customer [Line Items]
Net sales	$ 22,672	$ 22,066	$ 33,186
Airbus [Member]
Revenue from External Customer [Line Items]
Percentage of Total Net Sales	12.00%	13.00%	22.00%
Operating Segments
Revenue from External Customer [Line Items]
Net sales	$ 67,318	$ 58,552	$ 46,930
Intersegment Eliminations
Revenue from External Customer [Line Items]
Net sales	(2,930)	(1,965)	(1,581)
UNITED STATES
Revenue from External Customer [Line Items]
Net sales	40,011	34,560	21,397
Europe [Member]
Revenue from External Customer [Line Items]
Net sales	9,598	8,856	11,378
Asia Pacific [Member]
Revenue from External Customer [Line Items]
Net sales	7,969	7,644	7,935
Middle East And North Africa
Revenue from External Customer [Line Items]
Net sales	4,379	3,443	1,530
Other Geographic Regions [Member]
Revenue from External Customer [Line Items]
Net sales	2,431	2,084	3,109
Products [Member]
Revenue from External Customer [Line Items]
Net sales	49,270	43,319	32,998
Services [Member]
Revenue from External Customer [Line Items]
Net sales	15,118	13,268	12,351
Collins Aerospace Systems [Member]
Revenue from External Customer [Line Items]
Net sales	18,449	19,288	26,028
Collins Aerospace Systems [Member] | U S Government Sales Excluding Foreign Military Sales
Revenue from External Customer [Line Items]
Net sales	4,685	5,159	4,781
Collins Aerospace Systems [Member] | Foreign Military Sales Through The U S Government
Revenue from External Customer [Line Items]
Net sales	168	218	255
Collins Aerospace Systems [Member] | Foreign Government Direct Commercial Sales
Revenue from External Customer [Line Items]
Net sales	1,095	923	937
Collins Aerospace Systems [Member] | Commercial Aerospace And Other Commercial
Revenue from External Customer [Line Items]
Net sales	11,042	11,610	18,458
Collins Aerospace Systems [Member] | Operating Segments
Revenue from External Customer [Line Items]
Net sales	16,990	17,910	24,431
Collins Aerospace Systems [Member] | Intersegment Eliminations
Revenue from External Customer [Line Items]
Net sales	1,459	1,378	1,597
Collins Aerospace Systems [Member] | UNITED STATES
Revenue from External Customer [Line Items]
Net sales	9,341	10,132	12,762
Collins Aerospace Systems [Member] | Europe [Member]
Revenue from External Customer [Line Items]
Net sales	4,421	4,643	7,051
Collins Aerospace Systems [Member] | Asia Pacific [Member]
Revenue from External Customer [Line Items]
Net sales	1,851	1,810	2,473
Collins Aerospace Systems [Member] | Middle East And North Africa
Revenue from External Customer [Line Items]
Net sales	462	421	693
Collins Aerospace Systems [Member] | Other Geographic Regions [Member]
Revenue from External Customer [Line Items]
Net sales	915	904	1,452
Collins Aerospace Systems [Member] | Products [Member]
Revenue from External Customer [Line Items]
Net sales	13,404	14,664	19,991
Collins Aerospace Systems [Member] | Services [Member]
Revenue from External Customer [Line Items]
Net sales	3,586	3,246	4,440
Pratt and Whitney [Member]
Revenue from External Customer [Line Items]
Net sales	18,150	16,799	20,902
Pratt and Whitney [Member] | U S Government Sales Excluding Foreign Military Sales
Revenue from External Customer [Line Items]
Net sales	5,140	5,193	4,313
Pratt and Whitney [Member] | Foreign Military Sales Through The U S Government
Revenue from External Customer [Line Items]
Net sales	1,273	1,229	1,316
Pratt and Whitney [Member] | Foreign Government Direct Commercial Sales
Revenue from External Customer [Line Items]
Net sales	541	583	561
Pratt and Whitney [Member] | Commercial Aerospace And Other Commercial
Revenue from External Customer [Line Items]
Net sales	11,196	9,785	14,715
Pratt and Whitney [Member] | Operating Segments
Revenue from External Customer [Line Items]
Net sales	18,150	16,790	20,905
Pratt and Whitney [Member] | Intersegment Eliminations
Revenue from External Customer [Line Items]
Net sales	0	9	(3)
Pratt and Whitney [Member] | UNITED STATES
Revenue from External Customer [Line Items]
Net sales	9,034	8,534	8,622
Pratt and Whitney [Member] | Europe [Member]
Revenue from External Customer [Line Items]
Net sales	3,488	2,726	4,327
Pratt and Whitney [Member] | Asia Pacific [Member]
Revenue from External Customer [Line Items]
Net sales	3,885	4,024	5,462
Pratt and Whitney [Member] | Middle East And North Africa
Revenue from External Customer [Line Items]
Net sales	441	505	837
Pratt and Whitney [Member] | Other Geographic Regions [Member]
Revenue from External Customer [Line Items]
Net sales	1,302	1,001	1,657
Pratt and Whitney [Member] | Products [Member]
Revenue from External Customer [Line Items]
Net sales	11,189	10,186	12,994
Pratt and Whitney [Member] | Services [Member]
Revenue from External Customer [Line Items]
Net sales	6,961	6,604	7,911
Raytheon Intelligence & Space
Revenue from External Customer [Line Items]
Net sales	15,180	11,069	0
Raytheon Intelligence & Space | Fixed-price Contract
Revenue from External Customer [Line Items]
Net sales	6,338	4,526
Raytheon Intelligence & Space | Time-and-materials Contract
Revenue from External Customer [Line Items]
Net sales	7,606	5,615
Raytheon Intelligence & Space | U S Government Sales Excluding Foreign Military Sales
Revenue from External Customer [Line Items]
Net sales	11,844	8,512	0
Raytheon Intelligence & Space | Foreign Military Sales Through The U S Government
Revenue from External Customer [Line Items]
Net sales	825	640	0
Raytheon Intelligence & Space | Foreign Government Direct Commercial Sales
Revenue from External Customer [Line Items]
Net sales	844	740	0
Raytheon Intelligence & Space | Commercial Aerospace And Other Commercial
Revenue from External Customer [Line Items]
Net sales	431	249	0
Raytheon Intelligence & Space | Operating Segments
Revenue from External Customer [Line Items]
Net sales	13,944	10,141	0
Raytheon Intelligence & Space | Intersegment Eliminations
Revenue from External Customer [Line Items]
Net sales	1,236	928	0
Raytheon Intelligence & Space | UNITED STATES
Revenue from External Customer [Line Items]
Net sales	12,126	8,704	0
Raytheon Intelligence & Space | Europe [Member]
Revenue from External Customer [Line Items]
Net sales	434	307	0
Raytheon Intelligence & Space | Asia Pacific [Member]
Revenue from External Customer [Line Items]
Net sales	771	637	0
Raytheon Intelligence & Space | Middle East And North Africa
Revenue from External Customer [Line Items]
Net sales	469	410	0
Raytheon Intelligence & Space | Other Geographic Regions [Member]
Revenue from External Customer [Line Items]
Net sales	144	83	0
Raytheon Intelligence & Space | Products [Member]
Revenue from External Customer [Line Items]
Net sales	10,735	7,775	0
Raytheon Intelligence & Space | Services [Member]
Revenue from External Customer [Line Items]
Net sales	3,209	2,366	0
Raytheon Missiles & Defense
Revenue from External Customer [Line Items]
Net sales	15,539	11,396	0
Raytheon Missiles & Defense | Fixed-price Contract
Revenue from External Customer [Line Items]
Net sales	9,406	7,080
Raytheon Missiles & Defense | Time-and-materials Contract
Revenue from External Customer [Line Items]
Net sales	5,883	4,139
Raytheon Missiles & Defense | U S Government Sales Excluding Foreign Military Sales
Revenue from External Customer [Line Items]
Net sales	9,493	6,896	0
Raytheon Missiles & Defense | Foreign Military Sales Through The U S Government
Revenue from External Customer [Line Items]
Net sales	3,280	2,498	0
Raytheon Missiles & Defense | Foreign Government Direct Commercial Sales
Revenue from External Customer [Line Items]
Net sales	2,513	1,725	0
Raytheon Missiles & Defense | Commercial Aerospace And Other Commercial
Revenue from External Customer [Line Items]
Net sales	3	100	0
Raytheon Missiles & Defense | Operating Segments
Revenue from External Customer [Line Items]
Net sales	15,289	11,219	0
Raytheon Missiles & Defense | Intersegment Eliminations
Revenue from External Customer [Line Items]
Net sales	250	177	0
Raytheon Missiles & Defense | UNITED STATES
Revenue from External Customer [Line Items]
Net sales	9,495	6,906	0
Raytheon Missiles & Defense | Europe [Member]
Revenue from External Customer [Line Items]
Net sales	1,255	1,031	0
Raytheon Missiles & Defense | Asia Pacific [Member]
Revenue from External Customer [Line Items]
Net sales	1,462	1,132	0
Raytheon Missiles & Defense | Middle East And North Africa
Revenue from External Customer [Line Items]
Net sales	3,007	2,077	0
Raytheon Missiles & Defense | Other Geographic Regions [Member]
Revenue from External Customer [Line Items]
Net sales	70	73	0
Raytheon Missiles & Defense | Products [Member]
Revenue from External Customer [Line Items]
Net sales	13,927	10,232	0
Raytheon Missiles & Defense | Services [Member]
Revenue from External Customer [Line Items]
Net sales	1,362	987	0
Other Segments [Member]
Revenue from External Customer [Line Items]
Net sales	0	0	0
Other Segments [Member] | U S Government Sales Excluding Foreign Military Sales
Revenue from External Customer [Line Items]
Net sales	15	202	0
Other Segments [Member] | Foreign Military Sales Through The U S Government
Revenue from External Customer [Line Items]
Net sales	0	0	0
Other Segments [Member] | Foreign Government Direct Commercial Sales
Revenue from External Customer [Line Items]
Net sales	0	3	0
Other Segments [Member] | Commercial Aerospace And Other Commercial
Revenue from External Customer [Line Items]
Net sales	0	322	13
Other Segments [Member] | Operating Segments
Revenue from External Customer [Line Items]
Net sales	15	527	13
Other Segments [Member] | Intersegment Eliminations
Revenue from External Customer [Line Items]
Net sales	(2,945)	(2,492)	(1,594)
Other Segments [Member] | UNITED STATES
Revenue from External Customer [Line Items]
Net sales	15	284	13
Other Segments [Member] | Europe [Member]
Revenue from External Customer [Line Items]
Net sales	0	149	0
Other Segments [Member] | Asia Pacific [Member]
Revenue from External Customer [Line Items]
Net sales	0	41	0
Other Segments [Member] | Middle East And North Africa
Revenue from External Customer [Line Items]
Net sales	0	30	0
Other Segments [Member] | Other Geographic Regions [Member]
Revenue from External Customer [Line Items]
Net sales	0	23	0
Other Segments [Member] | Products [Member]
Revenue from External Customer [Line Items]
Net sales	15	462	13
Other Segments [Member] | Services [Member]
Revenue from External Customer [Line Items]
Net sales	$ 0	$ 65	$ 0