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Risk Management (Foreign Currency Risk) (Details)
Oct. 01, 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 $ 744,000,000 $ 494,000,000
Foreign Exchange Contract | Euro | Long    
Derivative [Line Items]    
Notional amounts of outstanding foreign exchange contracts 211,000,000 99,000,000
Foreign Exchange Contract | British Pound | Long    
Derivative [Line Items]    
Notional amounts of outstanding foreign exchange contracts 192,000,000 62,000,000
Foreign Exchange Contract | Chinese Renminbi | Short    
Derivative [Line Items]    
Notional amounts of outstanding foreign exchange contracts 98,000,000 114,000,000
Foreign Exchange Contract | Australian Dollar | Short    
Derivative [Line Items]    
Notional amounts of outstanding foreign exchange contracts 61,000,000 60,000,000
Foreign Exchange Contract | Brazilian Real | Short    
Derivative [Line Items]    
Notional amounts of outstanding foreign exchange contracts $ 59,000,000 $ 44,000,000