Annual report pursuant to Section 13 and 15(d)

Financial Instruments (Details) (Cash and Cash Equivalents)

v3.8.0.1
Financial Instruments (Details) (Cash and Cash Equivalents) - USD ($)
$ in Millions
Dec. 30, 2017
Dec. 31, 2016
Schedule of Investments [Line Items]    
Cash and cash equivalents, at fair value $ 1,185 $ 1,264
Fair value, inputs, level 1    
Schedule of Investments [Line Items]    
Cash and cash equivalents, at fair value 395 50
Fair Value, Inputs, Level 2    
Schedule of Investments [Line Items]    
Cash and cash equivalents, at fair value 682 1,147
Cash    
Schedule of Investments [Line Items]    
Cash and cash equivalents, at fair value 108 67
Money market funds | Fair value, inputs, level 1    
Schedule of Investments [Line Items]    
Cash and cash equivalents, at fair value 395 50
Commercial paper | Fair Value, Inputs, Level 2    
Schedule of Investments [Line Items]    
Cash and cash equivalents, at fair value $ 682 $ 1,147