Leases - Supplemental Operating Leases Information Table (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 29, 2019 USD ($)	Jun. 29, 2019 USD ($)
Leases [Abstract]
Operating Lease, Payments	$ 32	$ 63
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 8	$ 20
Operating Lease, Weighted Average Remaining Lease Term	6 years	6 years
Operating Lease, Weighted Average Discount Rate, Percent	3.10%	3.10%