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Debt (Senior Secured Notes and Senoir Secured Term Loans) (Detail) - USD ($)
1 Months Ended 3 Months Ended
Feb. 28, 2017
Mar. 31, 2017
Dec. 30, 2016
Debt Instrument [Line Items]      
Long-term debt   $ 3,315,000,000 $ 3,336,000,000
Unamortized discount   43,000,000 46,000,000
Debt issuance costs   $ 10,000,000 9,000,000
Notes Which Mature In December 2020      
Debt Instrument [Line Items]      
Stated interest rate (in percentage)   4.45%  
Term Loan B      
Debt Instrument [Line Items]      
Stated interest rate (in percentage)   3.06%  
Secured Debt | Term Loan B      
Debt Instrument [Line Items]      
Variable rate (in percentage) 2.25%    
Note payable, face amount $ 1,100,000,000 $ 1,131,000,000  
Debt instrument, decrease in basis points 50.00%    
London Interbank Offered Rate (LIBOR) | Secured Debt | Term Loan A      
Debt Instrument [Line Items]      
Variable rate (in percentage)   2.00%  
Minimum | London Interbank Offered Rate (LIBOR) | Secured Debt | Term Loan A      
Debt Instrument [Line Items]      
Variable rate (in percentage)   1.75%  
Maximum | London Interbank Offered Rate (LIBOR) | Secured Debt | Term Loan A      
Debt Instrument [Line Items]      
Variable rate (in percentage)   2.25%  
Fair Value Hedging | Designated as Hedging Instrument | Asset Derivatives      
Debt Instrument [Line Items]      
Derivative asset   $ 3,000,000 $ 3,000,000