Background and Basis of Presentation (Details) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 28, 2018 USD ($)	Sep. 29, 2017 USD ($)	Mar. 31, 2017 USD ($)	Sep. 28, 2018 USD ($) segment	Sep. 29, 2017 USD ($)	Jan. 01, 2018 USD ($)	Dec. 31, 2017 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of operating segments | segment				3
Number of reportable segments | segment				3
Accumulated earnings	$ 814.0			$ 814.0			$ 351.5
Revenue	1,541.7	$ 1,390.9		4,375.2	$ 4,165.6
Income before income taxes	216.0	168.3		$ 566.3	426.5
Distributors, repayment period				30 days
Repayment period of account receivable, cash discount, after the date of shipment				10 days
Standard product warranty, period from the date of shipment				2 years
Sales Agreements
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with customer, revenue recognized	1,534.7			$ 4,355.4
Product Development Agreements
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with customer, revenue recognized	7.0			19.8
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated earnings						$ 2.1
Revenue	0.1		$ 155.1	2.9
Income before income taxes			$ 59.0
Intelligent Sensing Group
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue	$ 199.8	$ 192.9		$ 583.1	$ 580.3
Standard product warranty, period from the date of shipment				1 year