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Leases - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 29, 2018
Dec. 30, 2017
Lessee, Lease, Description [Line Items]      
Operating lease, cost $ 25    
CAM and taxes $ 2    
Rent expense   $ 20 $ 17
Minimum      
Lessee, Lease, Description [Line Items]      
Operating lease, remaining lease terms 1 year    
Maximum      
Lessee, Lease, Description [Line Items]      
Operating lease, remaining lease terms 20 years