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Investment in Other Companies (Details) $ in Millions	12 Months Ended
Investment in Other Companies (Details) $ in Millions	Dec. 31, 2022 aircraft	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) engine
Eve UAM, LLC ("Eve") \| Strategic partnership \| Electric vertical takeoff and landing ("eVTOL") aircraft \| Forecast
Non-binding letter of intent to purchase number of aircraft \| aircraft	100
Aero Engines, LLC.
Payments to acquire interest in joint venture				$ 22.3
Investment ownership (as a percent)		75.00%		75.00%
Number of spare engines purchased \| engine				15
Number of spare engines sold to Aero Engines \| engine				15
Additional interest in Joint venture			$ 1.0
Long-term debt		$ 0.0
Investment balance in Aero Engines		20.2
Aero Engines, LLC. \| Other Nonoperating Income.
Company's portion of loss generated by Aero Engines		$ 5.3