Segment Financial Data (Segment Operating Performance) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Revenues	$ 15,716	$ 15,251
Operating profit	$ 1,080	$ 1,013
Operating Profit Margin	6.90%	6.60%
Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 16,452	$ 15,958
Operating profit	$ 1,356	$ 1,218
Operating Profit Margin	8.20%	7.60%
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	$ (736)	$ (707)
Operating profit	(34)	(31)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Revenues	0	0
Operating profit	(136)	(81)
Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	4,824	4,370
Operating profit	$ 440	$ 314
Operating Profit Margin	9.10%	7.20%
Collins Aerospace Systems [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 4,465	$ 4,038
Collins Aerospace Systems [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	359	332
Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	4,529	4,030
Operating profit	$ 151	$ 20
Operating Profit Margin	3.30%	0.50%
Pratt & Whitney [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 4,529	$ 4,030
Pratt & Whitney [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	0	0
Raytheon Intelligence & Space [Member]
Segment Reporting Information [Line Items]
Revenues	3,572	3,765
Operating profit	$ 378	$ 388
Operating Profit Margin	10.60%	10.30%
Raytheon Intelligence & Space [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 3,253	$ 3,445
Raytheon Intelligence & Space [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	319	320
Raytheon Missiles & Defense
Segment Reporting Information [Line Items]
Revenues	3,527	3,793
Operating profit	$ 387	$ 496
Operating Profit Margin	11.00%	13.10%
Raytheon Missiles & Defense | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 3,465	$ 3,730
Raytheon Missiles & Defense | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	62	63
FAS/CAS Operating Adjustment | Segment Reconciling Items
Segment Reporting Information [Line Items]
Revenues	0	0
Operating profit	378	423
Acquisition accounting adjustment member | Segment Reconciling Items
Segment Reporting Information [Line Items]
Revenues	0	0
Operating profit	$ (484)	$ (516)