XML 169 R133.htm IDEA: XBRL DOCUMENT v3.8.0.1
Financial Instruments and Risk Management (Market risk - Sensitivity Analysis Non-derivative Financial Instruments) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
U.S Dollar/Euro [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) $ (9) $ (75)
U.S Dollar/British Pound [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 3 0
U.S Dollar/Israeli Shekel [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 92 92
U.S Dollar/Chinese Yuan Renminbi [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (4) 0
U.S Dollar/Brazilian Real risk [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 0 (1)
U.S Dollar/Turkey Lira [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) $ (1) $ (1)