Claims, Lawsuits, and Other Contingencies - Legal Narrative (Details) - Fatal Plain Crash In November 2016 - Pending Litigation $ in Millions	1 Months Ended					3 Months Ended
	Jun. 30, 2025 USD ($) jurisdiction plaintiff	Dec. 31, 2022 plaintiff	Aug. 31, 2020 USD ($) plaintiff	Nov. 30, 2019 USD ($) defendant	Nov. 30, 2018 USD ($)	Dec. 31, 2023 USD ($)
Legal, Guarantees and Indemnifications
Damages sought	$ 16.7		$ 844.0		$ 16.0
Number of defendants | defendant				3
Damages sought option 1				$ 300.0
Damages sought option 2				50.0
Damages sought option 3				$ 25.0
Number of plaintiffs | plaintiff	43	43	43
Litigation settlement expense						$ 197.0
Number of jurisdiction law | jurisdiction	3