Fair Value Measurements - Additional Information (Detail) - USD ($)		9 Months Ended	12 Months Ended
	Aug. 01, 2017	Sep. 29, 2018	Dec. 30, 2017	Jun. 22, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets from level 1 to level 2		$ 0	$ 0
Transfers of assets from level 2 to level 1		0	0
Transfers of liabilities from level 1 to level 2		0	0
Transfers of liabilities from level 2 to level 1		0	0
Transfers of assets into level 3		0	0
Transfers of assets out of level 3		0	0
Transfers of liabilities into level 3		0	0
Transfers of liabilities out of level 3		0	0
Reclassified from accumulated other comprehensive loss to income		10,000,000
Total debt fair value debt		3,500,000,000	3,800,000,000
Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount of company's other indebtedness		$ 75,000,000
Amended and Restated 2016 Term Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate		4.24%
Amended and Restated 2016 Term Loan | Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative term	4 years
Notional amount of debt hedged	$ 1,100,000,000.0
Notional amount of debt hedged	$ 825,000,000
Aggregate rate on notional amount				3.71%
Variable rate on notional amount		1.71%
Basis spread on variable rate on notional amount		2.00%
Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate		5.88%
Senior Notes | 2016 Senior Notes | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate		5.875%
Fair value of debt		$ 600,000,000	$ 600,000,000