Segment Financial Data (Segment Operating Performance) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Revenues	$ 17,214	$ 15,716
Operating profit	$ 1,652	$ 1,080
Operating Profit Margin	9.60%	6.90%
Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 18,047	$ 16,452
Operating profit	$ 1,861	$ 1,356
Operating Profit Margin	10.30%	8.20%
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	$ (833)	$ (736)
Operating profit	13	(34)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Revenues	0	0
Operating profit	(43)	(136)
Collins Aerospace [Member]
Segment Reporting Information [Line Items]
Revenues	5,581	4,824
Operating profit	$ 794	$ 440
Operating Profit Margin	14.20%	9.10%
Collins Aerospace [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 5,163	$ 4,465
Collins Aerospace [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	418	359
Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	5,230	4,529
Operating profit	$ 415	$ 151
Operating Profit Margin	7.90%	3.30%
Pratt & Whitney [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 5,229	$ 4,529
Pratt & Whitney [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	1	0
Raytheon Intelligence & Space [Member]
Segment Reporting Information [Line Items]
Revenues	3,565	3,572
Operating profit	$ 324	$ 378
Operating Profit Margin	9.10%	10.60%
Raytheon Intelligence & Space [Member] | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 3,194	$ 3,253
Raytheon Intelligence & Space [Member] | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	371	319
Raytheon Missiles & Defense
Segment Reporting Information [Line Items]
Revenues	3,671	3,527
Operating profit	$ 328	$ 387
Operating Profit Margin	8.90%	11.00%
Raytheon Missiles & Defense | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 3,624	$ 3,465
Raytheon Missiles & Defense | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	47	62
FAS/CAS Operating Adjustment | Segment Reconciling Items
Segment Reporting Information [Line Items]
Revenues	0	0
Operating profit	314	378
Acquisition accounting adjustment member | Segment Reconciling Items
Segment Reporting Information [Line Items]
Revenues	0	0
Operating profit	$ (493)	$ (484)