Receivables - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Apr. 20, 2020	Oct. 25, 2019
Accounts Notes And Loans Receivable [Line Items]
Sale of customer receivables	$ 0	$ 0
Receivables Purchase Agreement [Member] | Maximum [Member]
Accounts Notes And Loans Receivable [Line Items]
Receivables previously secured by credit facility			$ 120,000,000
Revolving Credit Facility [Member]
Accounts Notes And Loans Receivable [Line Items]
Principal amount of debt	$ 1,500,000,000	$ 1,500,000,000
Revolving Credit Facility [Member] | Three-year Agreement [Member]
Accounts Notes And Loans Receivable [Line Items]
Principal amount of debt				$ 120,000,000