Condensed Consolidating Financial Information of Guarantor Subsidiaries - Narrative (Details) - ABL Facility, Accounts Receivable Securitization Facility, and Other Agreements $ in Millions	Jun. 30, 2019 USD ($)
Condensed Financial Statements, Captions [Line Items]
Line of credit facility, restricted payment capacity	$ 2,766
URNA
Condensed Financial Statements, Captions [Line Items]
Line of credit facility, restricted payment capacity	$ 843