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Financial Instruments and Risk Management (Market risk - Terms of Derivative Financial Instruments Used to Economically Hedge Foreign Currency Risk) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Put Option Contract [Member] | Euro U.s Dollar [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ (1)
Stated amount $ 45 $ 47
Average exchange rate 1.1 1.1
Put Option Contract [Member] | US Dollar/British Pound [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ 0
Stated amount $ 12 $ 12
Average exchange rate 1.2 1.2
Put Option Contract [Member] | US Dollar/Israeli Shekel [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ (11)
Stated amount $ 0 $ 240
Average exchange rate 3.7 3.4
Put Option Contract [Member] | US Dollar/Japanese Yen [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ 0
Stated amount $ 5 $ 3
Average exchange rate 140.7 130.4
Call Option Contract [Member] | US Dollar/ILS [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0  
Stated amount $ 0  
Average exchange rate 3.7  
Call Option Contract [Member] | Euro U.s Dollar [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ 1
Stated amount $ 45 $ 47
Average exchange rate 1.1 1.1
Call Option Contract [Member] | US Dollar/British Pound [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ 0
Stated amount $ 12 $ 12
Average exchange rate 1.2 1.2
Call Option Contract [Member] | US Dollar/Israeli Shekel [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount   $ 1
Stated amount   $ 240
Average exchange rate   3.4
Call Option Contract [Member] | US Dollar/Japanese Yen [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0  
Stated amount $ 5 $ 3
Average exchange rate 140.7 130.4
Swap contract [Member] | US Dollar/Israeli Shekel [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ (5) $ 23
Stated amount $ 344 $ 462
Average exchange rate 3.7 3.4
Swap Contract From Fixed Ils To Fixed Usd Interest Ils [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ (5) $ 23
Stated amount 344 462
Forward contracts [Member] | Euro U.s Dollar [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount 5 (4)
Stated amount $ 12 $ 146
Average exchange rate 1.1 1.1
Forward contracts [Member] | Euro British Pound [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount   $ 0
Stated amount   $ (17)
Average exchange rate   1.2
Forward contracts [Member] | US Dollar/British Pound [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ 0
Stated amount $ 8 $ 11
Average exchange rate 1.2 1.2
Forward contracts [Member] | US Dollar/Israeli Shekel [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 35 $ (12)
Stated amount $ 735 $ 746
Average exchange rate 3.7 3.4
Forward contracts [Member] | US Dollar/Brazilian Real risk [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ 2
Stated amount $ 14 $ 111
Average exchange rate 5 5.2
Forward contracts [Member] | Euro/Chinese Yuan Renminbi [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ (1)  
Stated amount $ 82  
Average exchange rate 7.7  
Forward contracts [Member] | Other [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 0 $ (1)
Stated amount $ 54 $ 35
Average exchange rate 293.9 0
Forward Transactions Hedge Accounting [Member] | US Dollar/Israeli Shekel [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount $ 6 $ (14)
Stated amount $ 345 $ 360
Average exchange rate 3.7 3.4