Business Segment Information - Schedule of Identifiable Assets by Business Segments and by Geographical Segments (Details) - USD ($) $ in Millions		Mar. 31, 2023	Dec. 31, 2022
Assets
Assets		$ 7,916.4	$ 7,729.0
Operating Segments
Assets
Assets		7,916.4	7,729.0
Operating Segments | Access
Assets
Assets		3,835.2	3,483.6
Operating Segments | Access | United States
Assets
Assets		2,712.8	2,493.0
Operating Segments | Access | Europe, Africa and Middle East
Assets
Assets		691.6	562.2
Operating Segments | Access | Rest of the World
Assets
Assets		430.8	428.4
Operating Segments | Defense
Assets
Assets		2,083.8	2,066.9
Operating Segments | Defense | United States
Assets
Assets		2,077.0	2,060.0
Operating Segments | Defense | Rest of the World
Assets
Assets		6.8	6.9
Operating Segments | Vocational
Assets
Assets		1,138.5	1,128.0
Operating Segments | Vocational | United States
Assets
Assets		1,102.0	1,063.4
Operating Segments | Vocational | Rest of the World
Assets
Assets		36.5	64.6
Corporate, Non-segment | United States
Assets
Assets	[1]	$ 858.9	$ 1,050.5

[1] Primarily includes cash and short-term investments and the Company’s global headquarters.