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Revenue - (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 03, 2020
Mar. 29, 2019
Dec. 31, 2019
Concentration Risk [Line Items]      
Remaining performance obligation $ 21    
Contract liability 52   $ 57
Revenue recognized $ 22 $ 20  
Customer Concentration Risk | Revenue Benchmark      
Concentration Risk [Line Items]      
Concentration risk percentage 9.00% 10.00%  
Customer Concentration Risk | Accounts Receivable      
Concentration Risk [Line Items]      
Concentration risk percentage 8.00% 6.00%