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Financial Instruments and Risk Management (Market risk - Sensitivity Analysis) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Euro/U.S Dollar [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) $ (80) $ (96)
U.S Dollar/British Pound [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 1 2
U.S Dollar/Israeli Shekel [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 177 134
U.S Dollar/Chinese Yuan Renminbi [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (1) $ (1)
Option contract [Member] | Euro/U.S Dollar [Member] | Increase 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 5  
Option contract [Member] | Euro/U.S Dollar [Member] | Increase 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 2  
Option contract [Member] | Euro/U.S Dollar [Member] | Decrease 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (3)  
Option contract [Member] | Euro/U.S Dollar [Member] | Decrease 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (6)  
Option contract [Member] | U.S Dollar/Israeli Shekel [Member] | Increase 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (40)  
Option contract [Member] | U.S Dollar/Israeli Shekel [Member] | Increase 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (18)  
Option contract [Member] | U.S Dollar/Israeli Shekel [Member] | Decrease 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 25  
Option contract [Member] | U.S Dollar/Israeli Shekel [Member] | Decrease 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 55  
Swap contract [Member] | U.S Dollar/Israeli Shekel [Member] | Increase 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (69)  
Swap contract [Member] | U.S Dollar/Israeli Shekel [Member] | Increase 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (36)  
Swap contract [Member] | U.S Dollar/Israeli Shekel [Member] | Decrease 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 40  
Swap contract [Member] | U.S Dollar/Israeli Shekel [Member] | Decrease 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 85  
Forward contracts [Member] | Euro/U.S Dollar [Member] | Increase 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 22  
Forward contracts [Member] | Euro/U.S Dollar [Member] | Increase 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 11  
Forward contracts [Member] | Euro/U.S Dollar [Member] | Decrease 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (11)  
Forward contracts [Member] | Euro/U.S Dollar [Member] | Decrease 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (22)  
Forward contracts [Member] | U.S Dollar/Israeli Shekel [Member] | Increase 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (48)  
Forward contracts [Member] | U.S Dollar/Israeli Shekel [Member] | Increase 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (25)  
Forward contracts [Member] | U.S Dollar/Israeli Shekel [Member] | Decrease 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 27  
Forward contracts [Member] | U.S Dollar/Israeli Shekel [Member] | Decrease 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 58  
Forward contracts [Member] | U.S Dollar/Chinese Yuan Renminbi [Member] | Increase 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (4)  
Forward contracts [Member] | U.S Dollar/Chinese Yuan Renminbi [Member] | Increase 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) (2)  
Forward contracts [Member] | U.S Dollar/Chinese Yuan Renminbi [Member] | Decrease 5% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) 3  
Forward contracts [Member] | U.S Dollar/Chinese Yuan Renminbi [Member] | Decrease 10% [Member]    
Disclosure of financial instruments [Line Items]    
Impact on profit (loss) $ 5