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Trade Accounts Receivable Sale Programs - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Oct. 19, 2017
Mar. 17, 2017
Mar. 31, 2018
Apr. 01, 2017
Mar. 31, 2018
Apr. 01, 2017
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]            
Trade Accounts Receivables Sold     $ 135,900,000 $ 91,500,000 $ 298,300,000 $ 169,300,000
Cash Proceeds Received from Trade Accounts Receivable Sold     $ 135,200,000 $ 91,100,000 $ 296,700,000 $ 168,500,000
BTMU RPA            
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]            
Maximum facility amount $ 160,000,000.000          
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   $ 60,000,000.000