Advance Payments and Deferred Revenue/Credits (Details) $ / ship_set in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) $ / ship_set	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Deferred Revenue Arrangement [Line Items]
Increase (Decrease) in Customer Advances	$ 114.1	$ (133.2)	$ 2.7
Advance payments and deferred revenue/credits summarized
Amortization Of Advances Per Ship Set (dollars per ship set) | $ / ship_set	450
Customer advances- 787 program	$ 189.1
customer advances- 737 program 2019 MOA	0.0			$ 123.0
Customer advances- Other program	18.9
Annual Repayment of Advances in case of termination of program	27.0
Customer advances- 787 program 2023 MOA	32.2
Customer Advances - Airbus A350	$ 100.0