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Goodwill - Narrative (Details) - USD ($)
6 Months Ended
Jul. 04, 2020
Jun. 29, 2019
Goodwill [Line Items]    
Goodwill, impairment $ 0 $ 0
E-Systems | Disrupted Reporting Unit    
Goodwill [Line Items]    
Percentage of fair value in excess of carrying value (less than) 7.00%