Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions	1 Months Ended	3 Months Ended	6 Months Ended
	May 31, 2016 Form	Jun. 25, 2016 USD ($)	Jun. 25, 2016 USD ($) Segment	Dec. 26, 2015 USD ($)	Jun. 27, 2015 USD ($)	Dec. 27, 2014 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | Segment			3
Accounts payable and accrued expenses and other current liabilities not yet presented for payment		$ 25	$ 25	$ 32
Cash and cash equivalents		1,118	1,118	1,069	$ 867	$ 1,071
Receivables, net		1,055	1,055	1,166
Restricted Stock
Summary Of Significant Accounting Policies [Line Items]
Number of restricted stock award forms | Form	3
Restricted Stock | Portion of the awards vest annually
Summary Of Significant Accounting Policies [Line Items]
Award vesting period	3 years
Restricted Stock | Portion cliff vest
Summary Of Significant Accounting Policies [Line Items]
Award vesting period	3 years
Receivables Sold Under Factoring Agreement during the period
Summary Of Significant Accounting Policies [Line Items]
Receivables under Factoring Agreement		84	167
Receivables, net		8	8	6
Prepaid Expenses and Other Current Assets
Summary Of Significant Accounting Policies [Line Items]
Factoring agreement, retention guarantee		9	9	$ 10
Non-US
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents		$ 150	$ 150