Risk Management - Foreign Currency Risk (Details)	Mar. 30, 2019 USD ($) position	Dec. 31, 2018 USD ($) position
Derivative [Line Items]
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	$ 897,000,000	$ 819,000,000
Foreign Exchange Contract | Euro | Long
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	136,000,000	89,000,000
Foreign Exchange Contract | Norwegian Krone | Long
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	34,000,000	28,000,000
Foreign Exchange Contract | Australian Dollar | Short
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	83,000,000	105,000,000
Foreign Exchange Contract | Chinese Renminbi | Short
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	59,000,000	55,000,000
Foreign Exchange Contract | Brazilian Real | Short
Derivative [Line Items]
Notional amounts of outstanding foreign exchange contracts	$ 41,000,000	$ 41,000,000