Leases - Balance Sheet Information (Details) $ in Millions	Jun. 26, 2020 USD ($)
Leases
Operating lease ROU assets	$ 451
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent
Operating lease liabilities, current	$ 115
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other Liabilities, Current
Operating lease liabilities, non-current	$ 346
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent
Total operating lease liabilities	$ 461
Weighted-average remaining lease term (in years) - Operating leases	5 years 8 months 12 days
Weighted-average discount rate (as a percent) - Operating leases	1.80%