Trade Accounts Receivable Sale Programs - Narrative (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Mar. 30, 2019	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 19, 2019	Mar. 31, 2018
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]
Trade accounts receivables sold		$ 241.9	$ 135.9	$ 474.4		$ 298.3
Cash proceeds received from trade accounts receivable sold		$ 240.4	$ 135.2	$ 471.6		$ 296.7
MUFG RPA
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]
Maximum facility amount	$ 260.0				$ 230.0
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