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Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2023
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Effective Tax Rate	29.40%	16.80%	9.20%	13.80%
Charges as a result of Pratt & Whitney's accelerated inspection of PW1100G-JM GTF engines due to rare condition in powder metal.	$ 2,900		$ 2,900
Deferred Income Tax Benefit			728	$ 1,681
Powder Metal Matter
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Deferred Income Tax Benefit	663		663
Minimum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change	350		350
Minimum [Member] | Forecast [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount					$ 275
Maximum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change	$ 475		$ 475
Maximum [Member] | Forecast [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount					$ 365

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Charges as a result of Pratt & Whitney's accelerated inspection of PW1100G-JM GTF engines due to rare condition in powder metal.

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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