Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 29, 2018	Dec. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Payment for purchase obligations	$ 9	$ 9	$ 2
Purchase obligation term	3 years
Prepaid contract fees	$ 2
Fixed fee cap	14
Variable fee cap	39
Contract termination fees until mid-May 2020	10
Contract termination fees until mid-November 2020	12
Contract termination fees after mid-November 2020	$ 14