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2413406 - Disclosure - Pension Plans and Postretirement Benefits (Changes in Plan Assets) (Details)
(http://www.teledyne.com/role/PensionPlansAndPostretirementBenefitsChangesInPlanAssetsDetails)
TableSchedule of Defined Benefit Plans Disclosures [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001094285 (http://www.sec.gov/CIK)
Defined Benefit Plan Disclosure [Line Items]Period [Axis]
2016-01-04 - 2017-01-01
2014-12-29 - 2016-01-03
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]
DomesticForeignDomesticForeign
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
 
 
 
 
Fair value of plan assets, beginning of period
890,400,000  
43,800,000  
957,500,000  
47,600,000  
Actual return on plan assets
52,900,000  
5,800,000  
(12,100,000) 
700,000  
Employer contribution - other benefit plan
2,100,000  
3,400,000  
2,200,000  
700,000  
Foreign currency changes
0  
(5,900,000) 
0  
(2,400,000) 
Benefits paid
(88,300,000) 
(1,800,000) 
(57,200,000) 
(2,800,000) 
Other
0  
(3,200,000) 
0  
0  
Fair value of plan assets, end of period
857,100,000  
 
42,100,000  
 
890,400,000  
 
43,800,000