Annual report pursuant to Section 13 and 15(d)

Financial Instruments (Details) (Narrative)

v3.6.0.2
Financial Instruments (Details) (Narrative) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 26, 2015
Sep. 27, 2014
Schedule of Investments [Line Items]      
Derivative, notional amount     $ 250
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge $ 1    
Reclassification out of Accumulated Other Comprehensive Income      
Schedule of Investments [Line Items]      
Other Income 2    
Fair value, inputs, level 1 | Money Market Funds      
Schedule of Investments [Line Items]      
Cash equivalents pledged as collateral 2 $ 1  
Fair value, inputs, level 1 | Mutual Funds      
Schedule of Investments [Line Items]      
Restricted investments $ 15 $ 15  
6.75% Senior Notes due 2019      
Schedule of Investments [Line Items]      
Interest rate, stated percentage 6.75%