Segment Information Operations in Geographical Areas (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 29, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jul. 01, 2016	Apr. 01, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 1,806.7	$ 1,685.3	$ 1,628.8	$ 1,535.2	$ 1,627.1	$ 1,567.4	$ 1,555.1	$ 1,474.7	$ 6,656.0	$ 6,224.3	$ 6,178.8
Long-lived assets	7,563.8				5,701.1				7,563.8	5,701.1	5,616.5
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									3,636.1	3,471.2	3,415.8
Long-lived assets	5,931.2				4,480.7				5,931.2	4,480.7	4,333.9
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									612.1	536.0	501.4
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	405.8				353.4				405.8	353.4	359.2
GERMANY
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									307.7	268.1	268.2
Long-lived assets	295.9				262.7				295.9	262.7	349.1
All other (each country individually less than 5% of total sales)
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									2,100.1	1,949.0	1,993.4
All other (each country individually less than 5% of total assets)
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 930.9				$ 604.3				$ 930.9	$ 604.3	$ 574.3