Debt - Revolving Credit Agreement - Additional Information (Detail) - ABL Senior Secured Revolving Facility [Member]	9 Months Ended
	Sep. 30, 2017 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,300,000,000
Revolving credit facility, outstanding amount	0
Available capacity on the ABL Facility	$ 889,000,000
Interest rate	ABR, plus 1.50% or the London Inter Bank Offered Rate ("LIBOR") plus 2.50%.
Interest rate	ABR plus 0.25% or LIBOR plus 1.25%
Interest rate on letter of credit fees	1.25%
Revolving credit facility unused commitment fee	0.25%
Standby Letters of Credit for Self Insurance Program [Member]
Debt Instrument [Line Items]
Letters of credit, outstanding amount	$ 322,000,000
Other Obligations [Member]
Debt Instrument [Line Items]
Letters of credit, outstanding amount	3,000,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Revolving credit facility, outstanding amount	411,000,000
ABL Tranche A-1 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 100,000,000
ABL Tranche A-1 [Member] | ABR [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate	1.50%
ABL Tranche A-1 [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate	2.50%
ABL Tranche A [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,200,000,000
Maturity date description	The maximum borrowing available is $1,300 million, with ABL Tranche A-1 at $100 million, and ABL Tranche A at $1,200 million.
ABL Tranche A [Member] | ABR [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate	0.25%
ABL Tranche A [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate	1.25%
Obligations Under Capital Leases [Member]
Debt Instrument [Line Items]
Letters of credit, outstanding amount	$ 86,000,000