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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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High end of collaborators' interests in existing engine production programs.

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Low end of collaborators' interests in existing engine production programs.

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Long-term debt, euro-denominated

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Operating profit impact of contract adjustments

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Maximum partner share in an individual program.

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Revenue, Remaining Performance Obligations, to be recognized within 24 months

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Shares of common stock distributed in the Distribution

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Summary of Accounting Principles (Details) € in Millions, $ in Millions		12 Months Ended
	Apr. 03, 2020 shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 EUR (€)
Accounting Policies [Abstract]
Restricted Cash And Cash Equivalents		$ 24	$ 38
Unbilled Contracts Receivable		265	439
Capitalized Contract Cost, Net		1,519	914
Operating profit impact of contract adjustments		(69)	(50)	$ (110)
Revenue, Remaining Performance Obligation, Amount		$ 111,700	$ 93,800
Revenue, Remaining Performance Obligations, to be recognized within 24 months		37.00%			37.00%
Long-term debt, euro-denominated \| €					€ 4,200
Collaborators interests existing programs low end		13.00%			13.00%
Collaborators interests existing programs high end		49.00%			49.00%
Partner share individual program maximum		31.00%			31.00%
Carrier [Member]
Accounting Policies [Abstract]
Shares of common stock distributed in the Distribution \| shares	866,158,910
Finite-Lived Intangible Assets [Line Items]
Shares of common stock distributed in the Distribution \| shares	866,158,910
Otis [Member]
Accounting Policies [Abstract]
Shares of common stock distributed in the Distribution \| shares	433,079,455
Finite-Lived Intangible Assets [Line Items]
Shares of common stock distributed in the Distribution \| shares	433,079,455