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Condensed Consolidating Financial Information of Guarantor Subsidiaries - Narrative (Details) - ABL Facility, Accounts Receivable Securitization Facility, and Other Agreements
$ in Millions
Sep. 30, 2019
USD ($)
Condensed Financial Statements, Captions [Line Items]  
Line of credit facility, restricted payment capacity $ 2,809
URNA  
Condensed Financial Statements, Captions [Line Items]  
Line of credit facility, restricted payment capacity $ 702