Changes in Estimates (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jul. 01, 2021	Jun. 30, 2022	Jul. 01, 2021
Change In Estimate [Line Items]
Changes in Contract Estimates, aggregate, Affecting earnings from Continuing Operations, per Share diluted	$ (0.63)	$ (0.42)	$ (0.98)	$ (1.22)
Change In Accounting Estimate, aggregate	$ (71.7)	$ (42.3)	$ (111.9)	$ (124.5)
Cost of Goods and Services Sold	1,277.5	1,014.4	2,417.4	1,973.2
Cost of Sales | Russia and Ukraine Conflict
Change In Estimate [Line Items]
Cost of Goods and Services Sold			28.1
Cumulative catch-up adjustment [Member]
Change In Estimate [Line Items]
Change in Accounting Estimate - Contract Accounting	(8.0)	9.9	(24.4)	0.1
Forward Loss [Member]
Change In Estimate [Line Items]
Change in Accounting Estimate - Contract Accounting	(63.7)	(52.2)	(87.5)	(124.6)
Commercial Segment [Member] | Cost of Sales | Russia and Ukraine Conflict
Change In Estimate [Line Items]
Cost of Goods and Services Sold			23.9
Commercial Segment [Member] | Cumulative catch-up adjustment [Member]
Change In Estimate [Line Items]
Change in Accounting Estimate - Contract Accounting	(7.9)	10.5	(25.2)	(0.4)
Commercial Segment [Member] | Forward Loss [Member]
Change In Estimate [Line Items]
Change in Accounting Estimate - Contract Accounting	(59.4)	(51.2)	(85.2)	(118.8)
Defense & Space Segment [Member] | Cumulative catch-up adjustment [Member]
Change In Estimate [Line Items]
Change in Accounting Estimate - Contract Accounting	(0.1)	(0.6)	0.8	0.5
Defense & Space Segment [Member] | Forward Loss [Member]
Change In Estimate [Line Items]
Change in Accounting Estimate - Contract Accounting	(4.3)	(1.0)	(2.3)	(5.8)
Aftermarket Segment [Member] | Cost of Sales | Russia and Ukraine Conflict
Change In Estimate [Line Items]
Cost of Goods and Services Sold			4.2
Aftermarket Segment [Member] | Cumulative catch-up adjustment [Member]
Change In Estimate [Line Items]
Change in Accounting Estimate - Contract Accounting	0.0	0.0	0.0	0.0
Aftermarket Segment [Member] | Forward Loss [Member]
Change In Estimate [Line Items]
Change in Accounting Estimate - Contract Accounting	$ 0.0	$ 0.0	$ 0.0	$ 0.0