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Debt (Summary of debt) (Detail) - USD ($)	Mar. 31, 2017	Feb. 28, 2017	Dec. 30, 2016
Debt Instrument [Line Items]
Capital leases due on various dates through fiscal 2020	$ 7,000,000		$ 3,000,000
Total notes payable and long-term debt	3,272,000,000		3,287,000,000
Less: current portion	84,000,000		62,000,000
Total notes payable and long-term debt, net of current portion	3,188,000,000		3,225,000,000
Notes Which Mature In December 2020
Debt Instrument [Line Items]
Senior secured notes:	$ 451,000,000		451,000,000
Stated interest rate (in percentage)	4.45%
Effective interest rate	4.53%
Notes Which Mature In December 2040
Debt Instrument [Line Items]
Senior secured notes:	$ 216,000,000		216,000,000
Stated interest rate (in percentage)	5.95%
Effective interest rate	6.03%
Term Loan A $400 million due August 2019
Debt Instrument [Line Items]
Senior secured term loans:	$ 118,000,000		123,000,000
Stated interest rate (in percentage)	2.81%
Effective interest rate	3.73%
Term Loan A $690 million due August 2021
Debt Instrument [Line Items]
Senior secured term loans:	$ 668,000,000		676,000,000
Stated interest rate (in percentage)	2.81%
Effective interest rate	3.37%
Term Loan A $310 million due August 2021
Debt Instrument [Line Items]
Senior secured term loans:	$ 301,000,000		304,000,000
Stated interest rate (in percentage)	2.81%
Effective interest rate	3.35%
Term Loan B $1,131 million due August 2023
Debt Instrument [Line Items]
Senior secured term loans:	$ 1,107,000,000		1,110,000,000
Stated interest rate (in percentage)	3.06%
Effective interest rate	3.42%
Notes Which Mature In July 2032
Debt Instrument [Line Items]
Senior unsecured notes:	$ 246,000,000		246,000,000
Stated interest rate (in percentage)	7.13%
Effective interest rate	7.43%
Notes Which Mature In July 2033
Debt Instrument [Line Items]
Senior unsecured notes:	$ 158,000,000		$ 158,000,000
Stated interest rate (in percentage)	5.50%
Effective interest rate	5.88%
Minimum \| Capital leases and other notes payable due on various dates through fiscal 2020
Debt Instrument [Line Items]
Stated interest rate (in percentage)	0.00%
Maximum \| Capital leases and other notes payable due on various dates through fiscal 2020
Debt Instrument [Line Items]
Stated interest rate (in percentage)	5.94%
Senior Notes \| Notes Which Mature In December 2020
Debt Instrument [Line Items]
Senior unsecured notes, face amount	$ 450,000,000
Senior Notes \| Notes Which Mature In December 2040
Debt Instrument [Line Items]
Senior unsecured notes, face amount	300,000,000
Secured Debt \| Term Loan A $400 million due August 2019
Debt Instrument [Line Items]
Senior unsecured notes, face amount	400,000,000
Secured Debt \| Term Loan A $690 million due August 2021
Debt Instrument [Line Items]
Senior unsecured notes, face amount	690,000,000
Secured Debt \| Term Loan A $310 million due August 2021
Debt Instrument [Line Items]
Senior unsecured notes, face amount	310,000,000
Secured Debt \| Term Loan B $1,131 million due August 2023
Debt Instrument [Line Items]
Senior unsecured notes, face amount	1,131,000,000	$ 1,100,000,000
Unsecured Debt \| Notes Which Mature In July 2032
Debt Instrument [Line Items]
Senior unsecured notes, face amount	250,000,000
Unsecured Debt \| Notes Which Mature In July 2033
Debt Instrument [Line Items]
Senior unsecured notes, face amount	$ 300,000,000