Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Effective Tax Rate Reconciliation, Percent
Statutory U.S. federal income tax rate	21.00%	21.00%	21.00%
Tax on international activities	(0.70%)	(3.10%)	(4.00%)
Tax charges related to separation of Carrier and Otis and Raytheon merger	0.00%	0.00%	(0.80%)
Disposals of businesses	0.00%	0.00%	2.20%
U.S. research and development credit	(4.40%)	(2.70%)	(3.40%)
U.S. federal statute lapse	(1.50%)	0.00%	0.00%
State income tax, net	0.40%	1.00%	3.40%
Foreign Derived Intangible Income (FDII)	(3.70%)	(3.50%)	(2.40%)
U.K. corporate tax rate enactment	0.00%	0.00%	1.50%
Other	0.80%	0.20%	1.40%
Effective income tax rate	11.90%	12.90%	18.90%
Effective Tax Rate Reconciliation, Amount
Statutory U.S. federal income tax rate	$ 805	$ 1,285	$ 1,073
Tax on international activities	(27)	(186)	(204)
Tax charges related to separation of Carrier and Otis and Raytheon merger	0	0	(39)
Disposals of businesses	0	0	108
U.S. research and development credit	(168)	(164)	(172)
U.S. federal statute lapse	(59)	0	0
State income tax, net	17	59	174
Foreign Derived Intangible Income (FDII)	(142)	(214)	(121)
Effective Income Tax Rate Reconciliation, Change in U.K. Enacted Tax Rate, Amount	0	0	73
Other	30	10	72
Effective income tax rate	$ 456	$ 790	$ 964