Debt - Term Loan Agreement (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Dec. 29, 2018
Debt Instrument [Line Items]
Current borrowings	$ 3,205	$ 3,457
Term Loan Facility | Senior secured term loan facility
Debt Instrument [Line Items]
Current borrowings	$ 2,129	$ 2,145
Term Loan Facility | Senior secured term loan facility | Interest rate swap
Debt Instrument [Line Items]
Aggregate interest rate (percent)	3.70%