Leases - Other Information Related to Lease Agreements (Details) $ in Millions	3 Months Ended
	Mar. 30, 2019 USD ($)
Cash Paid For Amounts Included In Measurement of Liabilities
Operating cash flows from operating leases	$ 6
Operating cash flows from financing leases	3
Financing cash flows from financing leases	$ 17
Weighted-average remaining lease term (years):
Operating leases	5 years 3 months 10 days
Financing leases	5 years 7 months 28 days
Weighted-average discount rate:
Operating leases	4.40%
Financing leases	3.60%