Risk Management (Foreign Currency Risk) (Details) $ in Millions	Jul. 02, 2016 USD ($) position	Dec. 31, 2015 USD ($) position
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Number of net notional positions to buy or sell foreign currency disclosed (in number of positions) | position	5	5
Foreign Exchange Contract
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	$ 700	$ 494
Foreign Exchange Contract | Euro | Long
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	210	99
Foreign Exchange Contract | British Pound | Long
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	168	62
Foreign Exchange Contract | Chinese Renminbi | Short
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	87	114
Foreign Exchange Contract | Australian Dollar | Short
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	57	60
Foreign Exchange Contract | Brazilian Real | Short
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	$ 57	$ 44