Leases, Codification Topic 842 (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 29, 2019	Sep. 29, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	$ 373.1
Variable Lease, Cost	228.8
Short-term Lease, Cost	8.3
Lease, Cost	610.2
Operating Lease, Payments	368.9
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 226.4
Operating Lease, Weighted Average Remaining Lease Term	9 years
Operating Lease, Weighted Average Discount Rate, Percent	2.50%
Operating Lease, Right-of-Use Asset	$ 8,358.5	$ 0.0
Operating Lease, Liability, Current	1,268.9	0.0
Operating Lease, Liability, Noncurrent	$ 7,711.7	0.0
Operating Lease, Weighted Average Remaining Lease Term	9 years
Operating Lease, Weighted Average Discount Rate, Percent	2.50%
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 1,099.2
Lessee, Operating Lease, Liability, Payments, Due Year Two	1,393.3
Lessee, Operating Lease, Liability, Payments, Due Year Three	1,285.7
Lessee, Operating Lease, Liability, Payments, Due Year Four	1,155.5
Lessee, Operating Lease, Liability, Payments, Due Year Five	1,023.4
Lessee, Operating Lease, Liability, Payments, Due after Year Five	4,151.1
Lessee, Operating Lease, Liability, Payments, Due	10,108.2
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	1,127.6
Operating Lease, Liability	8,980.6
Unrecorded Unconditional Purchase Obligation	$ 517.1
Operating Leases, Future Minimum Payments Due, Next Twelve Months		1,432.9
Operating Leases, Future Minimum Payments, Due in Two Years		1,342.2
Operating Leases, Future Minimum Payments, Due in Three Years		1,247.4
Operating Leases, Future Minimum Payments, Due in Four Years		1,124.3
Operating Leases, Future Minimum Payments, Due in Five Years		996.4
Operating Leases, Future Minimum Payments, Due Thereafter		4,087.7
Operating Leases, Future Minimum Payments Due		10,230.9
Minimum future rental payments, lease financing arrangements, Year 1		5.2
Minimum future rental payments, lease financing arrangements, Year 2		5.2
Minimum future rental payments lease financing arrangements Year 3		5.0
Minimum future rental payments, lease financing arrangements, Year 4		5.0
Minimum future rental payments, lease financing arrangements, Year 5		4.9
Total minimum future rental payments, lease financing arrangements		67.9
Minimum future rental payments, lease financing arrangements, Thereafter		$ 42.6
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	3 years
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	20 years