Leases - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Operating lease, weighted average discount rate	7.70%		7.60%
Finance lease, weighted average discount rate	7.00%		7.00%
Weighted average remaining lease term, operating leases	5 years 3 months 18 days		5 years 3 months 18 days
Weighted average remaining lease term, finance leases	4 years 3 months 18 days		4 years 10 months 24 days
Operating lease payments	$ 2	$ 3
Assets acquired under finance leases	$ 2		$ 2
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	14 years 4 months 24 days