Leases - Narrative (Details) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 28, 2020 USD ($)	Jun. 28, 2020 USD ($)
Leases [Abstract]
Lessee, operating lease, lease not yet commenced, amount	$ 681.2	$ 681.2
Restructuring Charges [Member] | Contract Termination [Member]
Leases [Abstract]
Business Exit Costs	13.4	17.0
International Segment
Leases [Abstract]
Rent Concession	$ 21.7	$ 21.7
Minimum [Member]
Leases [Abstract]
Lessee, operating lease, lease not yet commenced, term of contract	3 years	3 years
Maximum [Member]
Leases [Abstract]
Lessee, operating lease, lease not yet commenced, term of contract	20 years	20 years