Revenue (Disaggregation of Revenue by Revenue Type) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 28, 2018	Sep. 28, 2018
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 4,853.1	$ 14,529.5
Life Sciences
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,596.7	4,677.9
Diagnostics
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,502.5	4,573.1
Dental
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	679.5	2,085.5
Environmental & Applied Solutions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,074.4	3,193.0
Recurring
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	3,353.5	10,166.3
Recurring | Life Sciences
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,030.9	3,057.3
Recurring | Diagnostics
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,273.3	3,892.8
Recurring | Dental
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	478.2	1,513.5
Recurring | Environmental & Applied Solutions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	571.1	1,702.7
Nonrecurring
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,499.6	4,363.2
Nonrecurring | Life Sciences
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	565.8	1,620.6
Nonrecurring | Diagnostics
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	229.2	680.3
Nonrecurring | Dental
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	201.3	572.0
Nonrecurring | Environmental & Applied Solutions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 503.3	$ 1,490.3