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Revenue, Remaining Performance Obligations, RPO related to long-term commercial aerospace maintenance contracts at Pratt & Whitney

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Unfavorable EAC adjustment related to military contracts

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Unfavorable EAC adjustment related to the restructuring of a customer contract

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Unfavorable EAC adjustments on commercial aftermarket contracts

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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Amount of contractual obligation to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of contractual obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of contractual obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of contractual obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Basis of Presentation and Summary of Accounting Principles (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Basis of Presentation [Line Items]
Goodwill, Impairment Loss	$ 3,200	$ 0	$ 3,183	$ 0
Estimated credit losses			387
Asset Impairment Charges			111
Unbilled		23,652	20,336
Contractual Obligation		929	1,243
Contractual Obligation, Consumed in Current Year		314	295	$ 345
Contractual Obligation, Due in Next Fiscal Year		113
Contractual Obligation, Due in Second Year		95
Contractual Obligation, Due in Third Year		83
Contractual Obligation, Due in Fourth Year		78
Contractual Obligation, Due in Fifth Year		71
Contractual Obligation, Due after Fifth Year		489
Capitalized Contract Cost, Net		$ 1,974	1,981
Collaborators interests existing programs low end		13.00%
Collaborators interests existing programs high end		49.00%
Partner share individual program maximum		25.00%
Revenue, Remaining Performance Obligation, Amount		$ 156,000
Revenue, Remaining Performance Obligations, to be recognized within 12 months		30.00%
Revenue, Remaining Performance Obligations, to be recognized longer than 1 year		40.00%
Revenue, Remaining Performance Obligation, years to be recognized		15 years
Retained earnings		$ 50,265	49,423
Accounts Receivable [Member]
Basis of Presentation [Line Items]
Unbilled		$ 342	228
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Basis of Presentation [Line Items]
Retained earnings			59
Collins Aerospace Systems [Member]
Basis of Presentation [Line Items]
Goodwill, Impairment Loss	$ 3,200		3,200
Contract asset and inventory write-offs			146
Collins Aerospace Systems [Member] \| Patents & trademarks [Member]
Basis of Presentation [Line Items]
Asset Impairment Charges			57
Pratt and Whitney [Member]
Basis of Presentation [Line Items]
Unfavorable EAC adjustment on a commercial engine aftermarket contract			334
Unfavorable EAC adjustment related to the restructuring of a customer contract			129
Asset Impairment Charges			89
Unfavorable EAC adjustments on commercial aftermarket contracts			75
Unfavorable EAC adjustment related to military contracts			44
Reserves relating to a commercial financing arrangement			$ 43