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Financial Instruments and Risk Management (Market Risk - Terms of Derivative Financial Instruments Used to Hedge Interest Risk) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
SWAP contracts from variable interest to fixed interest [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount (fair value) $ (7) $ (13)
Stated amount $ 150 $ 150
Maturity date (in years) 2024 2024
Interest rate range 2.47-2.6 2.47%-2.60%
SWAP contracts from fixed ILS interest to fixed USD interest [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount (fair value) $ 119 $ 87
Stated amount $ 579 $ 701
Maturity date (in years) 2034 2034
Interest rate range 2.4-4.47 2.40%-4.47%
SWAP contracts from varible GBP interest to fixed USD interest [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount (fair value)   $ 5
Stated amount   $ 63
Maturity date (in years)   18/05/2021
Interest rate range   1-month libor
SWAP contracts from variable USD interest to fixed EUR interest [Member]    
Disclosure of detailed information about hedges [Line Items]    
Carrying amount (fair value)   $ (41)
Stated amount   $ 324
Maturity date (in years)   19/05/2021
Interest rate range   1-month libor