Segment Information (Schedule Of Operations In Geographical Areas) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 30, 2018	Dec. 31, 2017	Sep. 29, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 5,363.5	$ 4,853.1	$ 4,981.0	$ 4,695.4	$ 5,085.7	$ 4,528.2	$ 4,510.1	$ 4,205.7	$ 19,893.0	$ 18,329.7	$ 16,882.4
Property, plant and equipment, net	2,511.2				2,454.6				2,511.2	2,454.6	2,354.0
Reportable geographical components | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									7,374.4	6,837.9	6,377.4
Property, plant and equipment, net	1,224.4				1,126.2				1,224.4	1,126.2	1,198.4
Reportable geographical components | China
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									2,357.3	2,011.6	1,799.1
Reportable geographical components | Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									1,247.0	1,161.6	1,084.6
Property, plant and equipment, net	198.3				212.4				198.3	212.4	190.8
Reportable geographical components | Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									918.7	872.1	864.7
Reportable geographical components | United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	157.0				152.0				157.0	152.0	140.6
Reportable geographical components | All other (each country individually less than 5% of total)
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									7,995.6	7,446.5	6,756.6
Property, plant and equipment, net	$ 931.5				$ 964.0				$ 931.5	$ 964.0	$ 824.2
Geographic concentration risk | Reportable geographical components | Total sales
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage									5.00%	5.00%	5.00%
Geographic concentration risk | Reportable geographical components | Total property, plant and equipment
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage									5.00%	5.00%	5.00%