Trade Accounts Receivable Sale Programs - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Jun. 21, 2019
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]
Trade accounts receivables sold	$ 223.6	$ 199.1	$ 698.0	$ 497.4
Cash proceeds received from trade accounts receivable sold	222.1	$ 197.8	693.7	$ 494.4
MUFG RPA
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]
Maximum facility amount	280.0		$ 280.0		$ 260.0
Minimum prior notice required to cancel automatic extension			10 days
HSBC RPA
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]
Maximum facility amount	$ 60.0		$ 60.0