Lease Liability Maturities (Details) $ in Millions	Jun. 27, 2020 USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020	$ 241
2021	823
2022	638
2023	496
2024	376
Thereafter	1,830
Total undiscounted future lease payments - Operating	4,404
Imputed interest - Operating	(821)
Operating Lease, Liability	3,583
Finance Lease, Liability, Payment, Due [Abstract]
2020	16
2021	59
2022	55
2023	49
2024	38
Thereafter	517
Total undiscounted future lease payments - Financing	734
Imputed interest - Financing	(425)
Finance Lease, Liability	$ 309