Property, Plant and Equipment (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost		$ 713.6	$ 758.4
Less accumulated depreciation and amortization		536.1	526.9
Total property plant and equipment, net		177.5	231.5
Depreciation		73.7	82.2	$ 94.5
Land and land improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	[1]	13.1	15.3
Building and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost		90.9	115.8
Machinery, tools and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost		95.4	99.3
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	[2]	22.3	25.5
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost		138.0	148.7
Computer software
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost		140.5	143.5
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost		61.2	67.6
Tooling
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost		144.7	137.7
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost		$ 7.5	$ 5.0
Maximum | Land and land improvements
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		15
Maximum | Building and building improvements
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		30
Maximum | Machinery, tools and equipment
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		12
Maximum | Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)	[2]	10
Maximum | Computer equipment
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		3
Maximum | Computer software
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		10
Maximum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		8
Maximum | Tooling
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		5
Minimum | Land and land improvements
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		0
Minimum | Building and building improvements
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		15
Minimum | Machinery, tools and equipment
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		5
Minimum | Computer software
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		5
Minimum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		5
Minimum | Tooling
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum (years)		3

[1] Estimated useful life for land and land improvements is perpetual and 15 years, respectively.

[2] The estimated useful life for leasehold improvements is the lesser of 10 years or the term of the lease.